Yabunaka Kouichi 藪中幸一

… Alternative Names

YABUNAKA Koichi 藪中幸一

Less

Researcher Number	00737215
Other IDs
Affiliation (Current)	2025: 大阪大学, 大学院医学系研究科, 招へい准教授
Affiliation (based on the past Project Information) *help	2021 – 2022: 大阪大学, 大学院医学系研究科, 招へい准教授 2019 – 2020: 大阪大学, 医学系研究科, 招へい准教授 2016 – 2019: 東京大学, 大学院医学系研究科(医学部), 特任准教授 2016: 東京大学, 大学院医学系研究科(医学部), 特任助教 2015: 東京大学, 大学院医学系研究科, 助教 2015: 東京大学, 大学院医学系研究科, 特任助教 2014 – 2015: 東京大学, 医学(系)研究科(研究院), 助教
Review Section/Research Field	Principal Investigator Gerontological nursing / Basic Section 58060:Clinical nursing-related / Basic Section 58080:Gerontological nursing and community health nursing-related Except Principal Investigator Fundamental nursing / Basic Section 58070:Lifelong developmental nursing-related
Keywords	Principal Investigator 超音波検査 / 排便ケア / 便秘 / 超音波 / 高齢者 / 超音波画像 / 精神疾患患者 / 精神疾患者 / アセスメント / 精神看護 … More / 精神疾患 / 在宅看護 / 超音波装置 / 要介護高齢者 / 排便 / 排便管理 / 看護ケア … More Except Principal Investigator 乳腺炎 / 超音波診断法 / 乳房管理 / 緒音波診断装置 / 超音波診断装置 / 母乳育児 / 乳房ケア / 助産学 / 看護学 / リアルタイム / 看護理工学 / データベース / 末梢点滴 / 便秘 / 非侵襲・無拘束 / 可視化 / ポイントオブケア / データベース構築 / サーモグラフィ / 超音波画像 / 尿意 / 点滴 / 褥瘡 / イメージング / 臨床看護学 / 超音波検査 / 輸液療法 / 看護技術 Less

Construction of new defecation care for patients undergoing psychiatric treatment using ultrasound imagesPrincipal Investigator
- Principal Investigator
  
  Yabunaka Koichi
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 58060:Clinical nursing-related
- Research Institution
  Osaka University
要介護高齢者の排便ケアを目的とした携帯型超音波画像によるアセスメント方法の開発Principal Investigator
- Principal Investigator
  
  藪中幸一
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 58080:Gerontological nursing and community health nursing-related
- Research Institution
  The University of Tokyo
Development of methods of breast assessment for breastfeeding with ultrasound images
- Principal Investigator
  
  Matsuzaki Masayo
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 58070:Lifelong developmental nursing-related
- Research Institution
  Osaka University
Development of a program aimed at improving the quality of defecation care for the elderly requiring care using ultrasoundPrincipal Investigator
- Principal Investigator
  
  Yabunaka Koichi
- Project Period (FY)
  2016 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Gerontological nursing
- Research Institution
  The University of Tokyo
Establishing imaging nursing science for personalized care of older adults
- Principal Investigator
  
  Sanada Hiromi
- Project Period (FY)
  2016 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Fundamental nursing
- Research Institution
  The University of Tokyo
Construction of new constipation care using visualized ultrasoundPrincipal Investigator
- Principal Investigator
  
  YABUNAKA Koichi
- Project Period (FY)
  2014 – 2015
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Research Field
  
  Gerontological nursing
- Research Institution
  The University of Tokyo
Causal analysis of extravasation using ultrasonography
- Principal Investigator
  
  MURAYAMA Ryoko
- Project Period (FY)
  2014 – 2015
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Fundamental nursing
- Research Institution
  The University of Tokyo

All 2020 2019 2018 2017 2016 2015 2014

All Journal Article Presentation

[Journal Article] Safety and efficacy of a defecation care algorithm based on ultrasonographic bowel observation in Japanese home‐care settings: a single‐case, multiple‐baseline study2020
- Author(s)
  Matsumoto Masaru、Yoshida Mikako、Yabunaka Koichi、Nakagami Gojiro、Miura Yuka、Fujimaki Shun、Okawa Yohei、Sugama Junko、Okada Shingo、Ohta Hideki、Sanada Hiromi
- Journal Title
  
  Geriatrics & Gerontology International
  
  Volume: 20 Issue: 3 Pages: 187-194
- DOI
  10.1111/ggi.13858
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02694, KAKENHI-PROJECT-19K19701
[Journal Article] Development and evaluation of automated ultrasonographic detection of bladder diameter for estimation of bladder urine volume2019
- Author(s)
  Matsumoto Masaru、Tsutaoka Takuya、Yabunaka Koichi、Handa Mayumi、Yoshida Mikako、Nakagami Gojiro、Sanada Hiromi
- Journal Title
  
  PLOS ONE
  
  Volume: 14 Issue: 9 Pages: e0219916-e0219916
- DOI
  10.1371/journal.pone.0219916
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02694, KAKENHI-PROJECT-18K17481
[Journal Article] Validity assessment of two bladder volume estimation methods using hand-held ultrasonography devices：verification with a small amount of bladder urine2019
- Author(s)
  Matsumoto M, Yabunaka K, Yoshida M, Nakagami G, Sanada H.
- Journal Title
  
  Journal of Nursing Science and Engineering
  
  Volume: 6 Issue: 1 Pages: 22-32
- DOI
  10.24462/jnse.6.1_22
- NAID
  130007584181
- ISSN
  2188-4323, 2432-6283
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02694
[Journal Article] Establishing a Methodology for Ultrasound Evaluation of Pharyngeal Residue in the Pyriform Sinus and Epiglottic Vallecula2019
- Author(s)
  Miura Yuka、Yabunaka Koichi、Karube Mikihiko、Tsutaoka Takuya、Yoshida Mikako、Matsumoto Masaru、Nakagami Gojiro、Kamakura Yayoi、Sugama Junko、Sanada Hiromi
- Journal Title
  
  Respiratory Care
  
  Volume: 65 Issue: 3 Pages: 304-313
- DOI
  10.4187/respcare.07002
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H02694, KAKENHI-PROJECT-18K17714
[Journal Article] Constipation in the elderly in a Japanese long-term medical facility: An ultrasonographic investigation2018
- Author(s)
  Yabunaka Koichi、Nakagami Gojiro、Tabata Keiko、Sugama Junko、Matsumoto Masaru、Kido Yoshifumi、Iuchi Terumi、Sanada Hiromi
- Journal Title
  
  Drug Discoveries & Therapeutics
  
  Volume: 12 Issue: 4 Pages: 233-238
- DOI
  10.5582/ddt.2018.01033
- NAID
  130007484424
- ISSN
  1881-7831, 1881-784X
- Year and Date
  2018-08-31
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02694, KAKENHI-PROJECT-16K12237
[Journal Article] Confirming the placement of nasogastric tubes by hand-carried ultrasonography device2018
- Author(s)
  Komagata K, Yabunaka K, Nakagami G, Ikeda M, Takehara K, Takemura Y, Sanada H.
- Journal Title
  
  Journal of Nursing Science and Engineering
  
  Volume: 5 Issue: 1 Pages: 52-57
- DOI
  10.24462/jnse.5.1_52
- NAID
  130006330065
- ISSN
  2188-4323, 2432-6283
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02694
[Journal Article] Assessment of rectal feces storage condition by a point-of-care pocket-size ultrasound device for healthy adult subjects: A preliminary study2018
- Author(s)
  Koichi Yabunaka
- Journal Title
  
  Drug Discoveries & Therapeutics
  
  Volume: 12 Issue: 1 Pages: 42-46
- DOI
  10.5582/ddt.2018.01001
- NAID
  130006515868
- ISSN
  1881-7831, 1881-784X
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K12237
[Journal Article] A Randomized Controlled Trial to Investigate the Effectiveness of the Prevention of Aspiration Pneumonia Using Recommendations for Swallowing Care Guided by Ultrasound Examination2018
- Author(s)
  Miura Yuka、Nakagami Gojiro、Yabunaka Koichi、Tohara Haruka、Noguchi Hiroshi、Mori Taketoshi、Sanada Hiromi
- Journal Title
  
  Healthcare
  
  Volume: 6 Issue: 1 Pages: 15-15
- DOI
  10.3390/healthcare6010015
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02694, KAKENHI-PROJECT-16J02008
[Journal Article] Ultrasonographic evaluation of changes over time in one defecation cycle in adults with functional constipation: A report of two cases2018
- Author(s)
  Matsumoto Masaru、Tanaka Shiho、Yabunaka Koichi、Yoshida Mikako、Miura Yuka、Tsutaoka Takuya、Handa Mayumi、Nakagami Gojiro、Sugama Junko、Okada Shingo、Sanada Hiromi
- Journal Title
  
  Drug Discoveries & Therapeutics
  
  Volume: 12 Issue: 5 Pages: 304-308
- DOI
  10.5582/ddt.2018.01054
- NAID
  130007521060
- ISSN
  1881-7831, 1881-784X
- Year and Date
  2018-10-31
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02694
[Journal Article] Ultrasonographic follow-up of functional chronic constipation in adults: A report of two cases.2017
- Author(s)
  Yabunaka Koichi
- Journal Title
  
  SAGE Open Medical Case Reports
  
  Volume: 5 Pages: 1-4
- DOI
  10.1177/2050313x17694234
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K12237
[Journal Article] Continuous thermographic observation may predict extravasation in chemotherapy-treated2017
- Author(s)
  Oya M, Murayama R, Oe M, Yabunaka K, Tanabe H, Takahashi T, Matsui Y, Otomo E, Komiyama C, Sanada H
- Journal Title
  
  European Journal of Oncology Nursing
  
  Volume: 28 Pages: 56-61
- DOI
  10.1016/j.ejon.2017.02.009
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02694, KAKENHI-PROJECT-16H05561
[Journal Article] A New Ultrasonographic Image Displaying System to Support Vein Detection2017
- Author(s)
  Noyori S, Nakagami G, Noguchi H, Yabunaka K, Mori T, Sanada H
- Journal Title
  
  Journal of Robotics and Mechatronics
  
  Volume: 29 Issue: 2 Pages: 306-316
- DOI
  10.20965/jrm.2017.p0306
- NAID
  130007519863
- ISSN
  0915-3942, 1883-8049
- Year and Date
  2017-04-20
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H02694
[Journal Article] Pocket-sized versus laptop type ultrasonography devices for imaging normal subcutaneous tissue.2017
- Author(s)
  Yabunaka K, Nakagami G, Kitamura A, Sanada H
- Journal Title
  
  Journal of Nursing Science and Engineering
  
  Volume: 4 Pages: 21-26
- NAID
  130006406588
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H02694
[Journal Article] Low-temperature infiltration identified using infrared thermography in patients with subcutaneous edema revealed ultrasonographically: A case report2016
- Author(s)
  Oya M, Takahashi T, Tanabe H, Oe M, Murayama R, Yabunaka K, Matsui Y, Sanada H.
- Journal Title
  
  Drug Discoveries & Therapeutics
  
  Volume: 10 Issue: 2 Pages: 117-122
- DOI
  10.5582/ddt.2016.01033
- NAID
  130005152841
- ISSN
  1881-7831, 1881-784X
- Language
  English
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-16H05561, KAKENHI-PROJECT-16H02694
[Journal Article] Examination of vessel diameter for preventing infiltration using ultrasonography.2015
- Author(s)
  Tanabe H, Takahashi T, Murayama R, Yabunaka K, Oe M, Matsui Y, Arai R, Uchida M, Komiyama C, Sanada H.
- Journal Title
  
  The Journal of Infusion Nursing
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26670915
[Journal Article] The relationship between the tip position of an indwelling venous catheter and the subcutaneous edema2015
- Author(s)
  Murayama R, Takahashi T, Tanabe H, Yabunaka K, Oe M, Oya M, Uchida M, Komiyama C, Sanada H.
- Journal Title
  
  BioScience Trends
  
  Volume: 9 Issue: 6 Pages: 414-419
- DOI
  10.5582/bst.2015.01114
- NAID
  130005120105
- ISSN
  1881-7815, 1881-7823
- Language
  English
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26670915
[Journal Article] Ultrasonographic appearance of infusion via the peripheral intravenous catheters.2015
- Author(s)
  Yabunaka K, Murayama R, Takahashi T, Tanabe H, Kawamoto A, Oe M, Arai R, Sanada H.
- Journal Title
  
  Journal of Nursing Science Engineering.
  
  Volume: 2(1) Pages: 40-46
- NAID
  130006406472
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26670915
[Journal Article] Sonographic visualization of fecal loading in adults: comparison with computed tomography2015
- Author(s)
  Koichi Yabunaka,Jyunko Matsuo, Akiko Hara,Michiaki Takii,Gojiro Nakagami, Tatsuhiro Gotanda, Genichi Nishimura, Hiromi Sanada
- Journal Title
  
  The Journal of Diagnostic Medical Sonography
  
  Volume: 31 Pages: 86-92
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26893099
[Presentation] エコーを用いた大腸観察方法の開発2018
- Author(s)
  藪中幸一
- Organizer
  第6回看護理工学学術集会
- Data Source
  KAKENHI-PROJECT-16K12237
[Presentation] Ultrasonographic Visualization of Deep Tissue Injury Development during Surgery: Two Case Reports.2018
- Author(s)
  Koichi Yabunaka, Gojiro Nakagami, Kaname Akamata, Sanae Sasaki, Chieko Hayashi, Mikako Yoshida, Masaru Matsumoto, Hiromi Sanada.
- Organizer
  13th Congress of the Asian Federation of Societies for Ultrasound in Medicine and Biology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02694
[Presentation] Prediction of healing in Category I pressure ulcers by skin blotting with a lymphangiogenesis marker, vascular endothelial growth factor C: A pilot study.2018
- Author(s)
  Ayano Nakai, Takeo Minematsu, Nao Tamai, Junko Sugama, Koichi Yabunaka, Tamae Urai, Keiko Tabata, Hiromi Sanada.
- Organizer
  The 27th Japanese Society of Wound, Ostomy and Continence Management
- Data Source
  KAKENHI-PROJECT-16H02694
[Presentation] これからの看護に活かすイメージングテクノロジー　―超音波検査機器―. ①「イメージング看護学」へのあゆみ.　②看護アセスメントに活かすエコー技術2017
- Author(s)
  藪中幸一
- Organizer
  第46回日本医療福祉設備学会
- Invited
- Data Source
  KAKENHI-PROJECT-16H02694
[Presentation] Ultrasonic elastography for fecal loading in adults2015
- Author(s)
  Koichi Yabunaka, Gojiro Nakagami, Kazunori Komagata, Toshizo Katsuda, Tatsuhiro Gotanda, Hiromi Sanada
- Organizer
  27th Congress of the European Federation of Societies for Ultrasound in Medicine and Biology
- Place of Presentation
  ギリシャ・アテネ　ヒルトンホテル
- Year and Date
  2015-11-06
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26893099
[Presentation] 超音波エラストグラフィにおける便秘の検討2015
- Author(s)
  藪中幸一，藤岡正幸，仲上豪二朗，真田弘美
- Organizer
  日本超音波医学会第88回学術集会
- Place of Presentation
  東京都港区　グランドプリンスホテル
- Year and Date
  2015-05-22
- Data Source
  KAKENHI-PROJECT-26893099
[Presentation] Ultrasonography revealed subcutaneous edema in a thermographically observed low temperature area in patients with infiltration: A case report.2015
- Author(s)
  Oya M, Murayama R, Yabunaka K, Tanabe H, Takahashi T, Matsui Y, Sanada H.
- Organizer
  第35回看護科学学会
- Place of Presentation
  広島市文化交流会館（広島県，広島市）
- Year and Date
  2015-12-05
- Data Source
  KAKENHI-PROJECT-26670915
[Presentation] Thrombus with subcutaneous edema increases due to a peripheral intravenous lock over 12 hours: an observational study.2015
- Author(s)
  Tanabe H, Murayama R, Yabunaka K, Oe M, Takahashi T, Uchida M, Sanada H.
- Organizer
  第35回看護科学学会
- Place of Presentation
  広島市文化交流会館（広島県，広島市）
- Year and Date
  2015-12-05
- Data Source
  KAKENHI-PROJECT-26670915
[Presentation] 末梢静脈カテーテル留置における血管外漏出と血管径の関係.2014
- Author(s)
  田邊秀憲, 高橋聡明, 村山陵子, 藪中幸一, 大江真琴, 新井梨佳, 内田美保, 小見山智恵子, 門脇孝, 真田弘美.
- Organizer
  第2回看護理工学会学術集会
- Place of Presentation
  大阪大学大学会館（大阪府豊中市）
- Year and Date
  2014-10-04
- Data Source
  KAKENHI-PROJECT-26670915
[Presentation] 超音波検査装置を用いた末梢静脈点滴による血管内腔変化の観察.2014
- Author(s)
  高橋聡明, 田邊秀憲, 村山陵子, 藪中幸一, 大江真琴, 新井梨佳, 内田美保, 小見山智恵子, 門脇孝, 真田弘美.
- Organizer
  第2回看護理工学会学術集会
- Place of Presentation
  大阪大学大学会館（大阪府豊中市）
- Year and Date
  2014-10-04
- Data Source
  KAKENHI-PROJECT-26670915
[Presentation] 超音波検査装置による末梢静脈留置カテーテルの先端位置と血管周辺の皮下組織像の関連.2014
- Author(s)
  村山陵子, 高橋聡明, 田邊秀憲, 藪中幸一, 大江真琴, 新井梨佳, 内田美保, 小見山智恵子, 門脇孝, 真田弘美
- Organizer
  第2回看護理工学会学術集会
- Place of Presentation
  大阪大学大学会館（大阪府豊中市）
- Year and Date
  2014-10-04
- Data Source
  KAKENHI-PROJECT-26670915

1. 仲上豪二朗 (70547827)

# of Collaborated Projects: 3 results

# of Collaborated Products: 6 results
2. MURAYAMA Ryoko (10279854)

# of Collaborated Projects: 2 results

# of Collaborated Products: 8 results
3. SANADA Hiromi (50143920)

# of Collaborated Projects: 2 results

# of Collaborated Products: 15 results
4. Oe Makoto (60389939)

# of Collaborated Projects: 2 results

# of Collaborated Products: 7 results
5. KOMIYAMA Chieko (60581634)

# of Collaborated Projects: 2 results

# of Collaborated Products: 5 results
6. Matsuzaki Masayo (40547824)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
7. 駒形和典 (80735720)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 太田裕治 (50203807)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
9. 高木周 (30272371)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 森武俊 (20272586)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
11. 峰松健夫 (00398752)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
12. 野口博史 (50431797)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
13. 松本勝 (40751904)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. 藤田恵理子 (00824054)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. 平出美栄子 (50795739)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 木戸芳史 (70610319)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. TANABE Hidenori

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
18. ARAI Rika

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results

Yabunaka Kouichi 藪中 幸一

YABUNAKA Koichi 藪中 幸一

Research Projects

Research Products

Co-Researchers

Construction of new defecation care for patients undergoing psychiatric treatment using ultrasound imagesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

要介護高齢者の排便ケアを目的とした携帯型超音波画像によるアセスメント方法の開発Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of methods of breast assessment for breastfeeding with ultrasound images

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of a program aimed at improving the quality of defecation care for the elderly requiring care using ultrasoundPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Establishing imaging nursing science for personalized care of older adults

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Construction of new constipation care using visualized ultrasoundPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Causal analysis of extravasation using ultrasonography

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Safety and efficacy of a defecation care algorithm based on ultrasonographic bowel observation in Japanese home‐care settings: a single‐case, multiple‐baseline study2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Development and evaluation of automated ultrasonographic detection of bladder diameter for estimation of bladder urine volume2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Validity assessment of two bladder volume estimation methods using hand-held ultrasonography devices：verification with a small amount of bladder urine2019

Author(s)

Journal Title

DOI

NAID

ISSN

Language

Data Source

[Journal Article] Establishing a Methodology for Ultrasound Evaluation of Pharyngeal Residue in the Pyriform Sinus and Epiglottic Vallecula2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Constipation in the elderly in a Japanese long-term medical facility: An ultrasonographic investigation2018

Author(s)

Journal Title

DOI

NAID

ISSN

Year and Date

Language

Data Source

[Journal Article] Confirming the placement of nasogastric tubes by hand-carried ultrasonography device2018

Yabunaka Kouichi 藪中幸一

YABUNAKA Koichi 藪中幸一