Saitoh Akihiko 齋藤昭彦

… Alternative Names

Researcher Number	30531389
Other IDs
Affiliation (Current)	2021: 新潟大学, 医歯学系, 教授 2021: 国立研究開発法人国立成育医療研究センター, 内科系専門診療部, その他
Affiliation (based on the past Project Information) *help	2013 – 2019: 新潟大学, 医歯学系, 教授
Review Section/Research Field	Principal Investigator Pediatrics Except Principal Investigator Virology / Otorhinolaryngology / Basic Section 52050:Embryonic medicine and pediatrics-related
Keywords	Principal Investigator ヒトパレコウイルス3型 / 新生児 / 移行抗体 / 敗血症 / 髄膜脳炎 / 脳髄膜炎 / ヒトパレコウイルス / 臍帯血 / 早期乳児 / パレコウイルスA3 … More Except Principal Investigator インフルエンザウイルス / サーベイランス / ミャンマー / レバノン / マレーシア / ベトナム / 遺伝子解析 / 薬剤耐性 / インフルエンザ / 流行疫学 / 分子疫学 / ノイラミニダーゼ阻害剤耐性 / 国際研究者交流 / 地理伝播 / 地理的伝播 / 胎盤感染 / 遅発性難聴 / ウイルス感染 / 先天性風疹症候群 / RNAウイルス / 乾燥臍帯 / 臍帯 / 母胎胎内感染 / 先天性ウイルス感染 / 進行性難聴 / PCR / ウイルス胎盤感染 / 母胎感染 / ウイルス受容体 / ヒトパレコウイルス3型 / 蛍光タンパク質発現組換えヒトパレコウイルス3型 / レトロウイルスベクター / cDNAライブラリー / パレコウイルスA / 新生児感染症 Less

ヒトパレコウイルス3型の受容体同定と感染重症化機序の解明Ongoing
- Principal Investigator
  
  渡邉香奈子
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 52050:Embryonic medicine and pediatrics-related
- Research Institution
  Niigata University
Investigations for Effective Therapies for Human Parechovirus Type 3 InfectionPrincipal Investigator
- Principal Investigator
  
  Saitoh Akihiko
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Pediatrics
- Research Institution
  Niigata University
Relation of viral infection during pregnancy to hearing-impaired children
- Principal Investigator
  
  Morimoto Noriko
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Otorhinolaryngology
- Research Institution
  National Center for Child Health and Development
Mechanisms of Onset of Human Parechovirus Type 3 Infection in Neonates -A role of Transfer Antibodies-Principal Investigator
- Principal Investigator
  
  Saitoh Akihiko
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Pediatrics
- Research Institution
  Niigata University
Influenza virus transmission, evolution and appearance of drug resistant viruses in Asia.
- Principal Investigator
  
  SAITO Reiko
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Virology
- Research Institution
  Niigata University

All 2020 2019 2018 2017 2016 2015 2013 Other

All Journal Article Presentation Book

[Book] インフルエンザ診療ガイド2015ー2016「ノイラミニダーゼ阻害剤の耐性」2015
- Author(s)
  齋藤玲子（分担執筆者）
- Total Pages
  240
- Publisher
  日本医事新報社
- Data Source
  KAKENHI-PROJECT-25305014
[Journal Article] Innate Immune Responses in Serum and Cerebrospinal Fluid From Neonates and Infants Infected With Parechovirus-A3 or Enteroviruses2020
- Author(s)
  Habuka Rie、Aizawa Yuta、Izumita Ryohei、Domon Hisanori、Terao Yutaka、Takihara Hayato、Okuda Shujiro、Saitoh Akihiko
- Journal Title
  
  The Journal of Infectious Diseases
  
  Volume: in press
- DOI
  10.1093/infdis/jiaa131
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17H04226
[Journal Article] Novel scoring system for differentiating parechovirus-A3 and enterovirus infection in neonates and young infants2020
- Author(s)
  Izumita Ryohei、Aizawa Yuta、Habuka Rie、Watanabe Kanako、Otsuka Taketo、Kitamura Nobutaka、Akazawa Kohei、Saitoh Akihiko
- Journal Title
  
  Journal of Clinical Virology
  
  Volume: 124 Pages: 104256-104256
- DOI
  10.1016/j.jcv.2019.104256
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17H04226
[Journal Article] Parechovirus-A3 encephalitis presenting with focal seizure mimicking herpes simplex virus infection2020
- Author(s)
  Arai Sakiko、Yamanaka Takayuki、Kasai Masashi、Fukuyama Tetsuhiro、Aizawa Yuta、Matsui Ko、Sato Masanori、Matsui Hiroko、Saitoh Akihiko
- Journal Title
  
  Journal of Infection and Chemotherapy
  
  Volume: 26 Pages: 736-740
- DOI
  10.1016/j.jiac.2020.02.003
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17H04226
[Journal Article] Persistence of High Neutralizing Antibody Titers After Neonatal and Early Infantile Infection with Parechovirus-A32019
- Author(s)
  Izumita R, Aizawa Y, Watanabe K, Saitoh A.
- Journal Title
  
  The Pediatric Infectious Disease Journal
  
  Volume: in press
- DOI
  10.1097/inf.0000000000002245
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17H04226, KAKENHI-PROJECT-19K08294
[Journal Article] Intrafamilial Transmission of Parechovirus A and Enteroviruses in Neonates and Young Infants.2018
- Author(s)
  Izumita R, Deuchi K, Aizawa Y, Habuka R, Watanabe K, Otsuka T, Saitoh A.
- Journal Title
  
  J Pediatric Infect Dis Soc.
  
  Volume: in press
- DOI
  10.1093/jpids/piy079
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17H04226
[Journal Article] Human parechovirus type 3 infection: An emerging infection in neonates and young infants2017
- Author(s)
  Aizawa Y, Izumita, R, Saitoh A
- Journal Title
  
  J Infect Chemothr
  
  Volume: in press Pages: 419-426
- DOI
  10.1016/j.jiac.2017.04.009
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26461569, KAKENHI-PROJECT-17H04226
[Journal Article] Clinical Utility of Serum Samples for Human Parechovirus Type 3 Infection in Neonates and Young Infants: The 2014 Epidemic in Japan2016
- Author(s)
  Aizawa Y, Suzuki Y, Watanabe K, Oishi T, Saitoh A
- Journal Title
  
  Journal of Infection
  
  Volume: 72 Pages: 223-232
- DOI
  10.1016/j.jinf.2015.10.010
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26461569
[Journal Article] Performance of a real-time PCR based approach and droplet digital PCR in detecting human parechovirus type 3 RNA2016
- Author(s)
  Aizawa Y, Koyama A, Ishihara T, Onodera O, Saitoh A
- Journal Title
  
  J Clin Virol
  
  Volume: 84 Pages: 27-31
- DOI
  10.1016/j.jcv.2016.09.009
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26461569
[Journal Article] Asymptomatic Children Might Transmit Human Parechovirus Type 3 to Neonates and Young Infants2015
- Author(s)
  Aizawa Y, Yamanaka T, Watanabe K, Oishi T, Saitoh A
- Journal Title
  
  Journal of Clinical Virology
  
  Volume: 70 Pages: 105-108
- DOI
  10.1016/j.jcv.2015.07.300
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26461569
[Journal Article] A Role of Maternal Antibodies in Human Parechovirus Type 3 Infection in Neonates and Young Infants2015
- Author(s)
  AizawaY, Watanabe K, Oishi T, Hirano H, Hasegawa I, Saito A
- Journal Title
  
  Emerging Infectious Diseases
  
  Volume: 21 Pages: 1966-1972
- DOI
  10.3201/eid2111.150267
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15K10771, KAKENHI-PROJECT-26461569
[Presentation] Human Breast Milk Inhibits the Replication of Parechovirus-A2019
- Author(s)
  Izumita Ryohei、Kon kazuki、 Aizawa Yuta、Watanabe Kanako、Saitoh Akihiko
- Organizer
  IDWeek 2019
- Data Source
  KAKENHI-PROJECT-19K08294
[Presentation] Outbreak of Enterovirus D68 among children in Japan and simultaneous circulation of clade B3 in Europe2019
- Author(s)
  Ikuse Tatsuki、 Aizawa Yuta、Yamanaka Takayuki、Habuka Rie、Watanabe Kanako、Otsuka Taketo、Saitoh Akihiko
- Organizer
  IDWeek 2019
- Data Source
  KAKENHI-PROJECT-19K08294
[Presentation] Human Breast Milk Inhibits Replication of Parechovirus-A3.2019
- Author(s)
  Izumita R, Kon K, Aizawa Y, Watanabe K, Saitoh A.
- Organizer
  ID Week, 57th Annual Meeting, Infectious Disease Society of America
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] Changing Epidemiological Profile of Infantile Parechovirus-A3 Infection in Japan.2019
- Author(s)
  Aizawa Y, Izumita R, Yamanaka T, Habuka R, Ikuse T, Watanabe K, Otsuka T, Saitoh A.
- Organizer
  ID Week, 57th Annual Meeting, Infectious Disease Society of America
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] Changing Epidemiological Profile of Infantile Parechovirus-A3 Infection in Japan2019
- Author(s)
  Aizawa Yuta、Izumita Ryohei、Yamanaka Takayuki、Habuka Rie、Ikuse Tatsuki、Watanabe Kanako、Otsuka Taketo、Saitoh Akihiko
- Organizer
  IDWeek 2019
- Data Source
  KAKENHI-PROJECT-19K08294
[Presentation] Innate Immune Response in Serum and Cerebrospinal Fluid of Neonates and Infants Infected with Parechovirus-A3 and Enteroviruses.2019
- Author(s)
  Habuka R, Aizawa Y, Izumita R, Domon H, Terao Y, Saitoh A.
- Organizer
  ID Week, 57th Annual Meeting, Infectious Disease Society of America
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] 新生児・早期乳児におけるパレコウイルスA3とエンテロウイルス感染症：血清と髄液のPCR陽性率の比較2019
- Author(s)
  鈴木優子、相澤　悠太、渡邉香奈子、齋藤昭彦
- Organizer
  第60回日本臨床ウイルス学会
- Data Source
  KAKENHI-PROJECT-19K08294
[Presentation] Neutralizing Antibody Titers against Parechovirus-A3 (PeV-A3) and Long-term Neurological Outcome in Children who Suffered from PeV-A3-Related Diseases in Neonatal and Infantile Periods.2019
- Author(s)
  Izumita R, Aizawa Y, Watanabe K, Saitoh A.
- Organizer
  The 9th Asian Congress of Pediatric Infectious Diseases
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] Parechovirus-A3 Infection; Emerging Infection in Neonates and Young Infants2018
- Author(s)
  Saitoh A.
- Organizer
  The 9th Asian Congress of Pediatric Infectious Diseases
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] Neutralizing Antibody Titers against Parechovirus-A3 (PeV-A3) and Long-term Neurological Outcome in Children who Suffered from Pev-A3-Related Diseases in Neonatal and Infantile Periods.2018
- Author(s)
  Izumita R, Aizawa Y, Watanabe K, Saitoh A.
- Organizer
  Infectious Disease Society of America, 56th Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] Human Parechovirus Type 3 Infection; Emerging Infection in Neonates and Young Infants2017
- Author(s)
  Saitoh A
- Organizer
  Pediatric Academic Societies 2017 Meeting
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] Asymptomatic Adults and Children Can Transmit Human Parechoviruses and Enteroviruses to Neonates and Young Infants.2017
- Author(s)
  Izumita R, Aizawa Y, Watanabe K, Saitoh A.
- Organizer
  Infectious Disease Society of America, 55th Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] 小児と成人におけるパレコウイルス感染症2017
- Author(s)
  齋藤昭彦
- Organizer
  第66回日本感染症学会　東日本地方会学術集会
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] Human Parechovirus type 3 Infection2017
- Author(s)
  Saitoh A
- Organizer
  Pediatric Academic Society AnnualMeeting
- Place of Presentation
  San Francisco
- Year and Date
  2017-05-05
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26461569
[Presentation] Can We Distinguish between Human Parechovirus Type 3 and Enteroviruses Infection in Neonates and Young Infants Based on their Clinical and Laboratory Findings?2017
- Author(s)
  Izumita R, Aizawa Y, Habuka R, Watanabe K, Otsuka T, Saitoh A.
- Organizer
  Infectious Disease Society of America, 55th Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04226
[Presentation] Factors Associated with Clinical Manifestations of Neonates and Young Infants Infected with Human Parechovirus Type 3 -From 2014 Epidemic in Japan-2015
- Author(s)
  Aizawa Y, Watanabe K, Oishi T, Saitoh A
- Organizer
  Infectious Disease Society of America, 53rd Annual Meeting
- Place of Presentation
  San Diego, USA
- Year and Date
  2015-10-07
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26461569
[Presentation] 日常診療に直結するサーベイランス体制を！「RSウイルスの分子疫学」2015
- Author(s)
  齋藤玲子
- Organizer
  第56回日本臨床ウイルス学会
- Place of Presentation
  岡山大学鹿田キャンパス(岡山県岡山市）
- Year and Date
  2015-06-13
- Invited
- Data Source
  KAKENHI-PROJECT-25305014
[Presentation] インフルエンザの治療と薬剤耐性ー日本の流行とアジア地域の分子疫学を含めて、ランチョンセミナー12015
- Author(s)
  齋藤玲子
- Organizer
  第56回日本臨床ウイルス学会
- Place of Presentation
  岡山大学鹿田キャンパス(岡山県岡山市）
- Year and Date
  2015-06-13
- Invited
- Data Source
  KAKENHI-PROJECT-25305014
[Presentation] Role of Maternal Antibodies in Human Parechovirus Type 3 Infection in Young Infants2015
- Author(s)
  Aizawa Y, Watanabe K, Suzuki Y, Oishi T, Hirano H, Hasegawa I, Saitoh A
- Organizer
  11th Congress of the Asian Society for Pediatric Research
- Place of Presentation
  大阪国際会議場　大阪府大阪市
- Year and Date
  2015-04-14
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26461569
[Presentation] RSウイルスの分子疫学ー日本と東南アジアの流行を追う、教育セミナー１１2015
- Author(s)
  齋藤玲子
- Organizer
  第64回日本感染症学会東日本地方会学術集会第62回日本化学療法学会東日本支部総会　合同学会
- Place of Presentation
  ロイトン札幌（北海道札幌市）
- Year and Date
  2015-10-21
- Invited
- Data Source
  KAKENHI-PROJECT-25305014
[Presentation] Evolutionary Dynamics of Influenza A Viruses in Japan，Lebanon，and Myanmar, 2009-20132013
- Author(s)
  Dapat Clyde、Dapat Isolde、近藤大貴、齋藤孔良、齋藤藤玲子、鈴木宏.
- Organizer
  第61回日本ウイルス学会学術集会
- Place of Presentation
  神戸国際会議場（神戸市）
- Data Source
  KAKENHI-PROJECT-25305014
[Presentation] Role of Maternal Antibodies in Human Parechovirus Type 3 infection in young infants
- Author(s)
  Aizawa Y, Watanabe K, Suzuki Y, Oishi T, Hirano H, Hasegawa I, Saitoh A.
- Organizer
  Annual Meeting of Infectious DIseases Society of America
- Place of Presentation
  Philadelphia, PA USA
- Year and Date
  2014-10-08 – 2014-10-12
- Data Source
  KAKENHI-PROJECT-26461569
[Presentation] Role of Maternal Antibodies in Human Parechovirus Type 3 infection in young infants
- Author(s)
  Aizawa Y, Watanabe K, Suzuki Y, Oishi T, Hirano H, Hasegawa I, Saitoh A
- Organizer
  Asian Society of Pediatric Research
- Place of Presentation
  Osaka, Japan
- Year and Date
  2015-04-15 – 2015-04-18
- Data Source
  KAKENHI-PROJECT-26461569

1. 渡邉香奈子 (80626094)

# of Collaborated Projects: 3 results

# of Collaborated Products: 20 results
2. SAITO Reiko (30345524)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
3. FUJII Masahiro (30183099)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. SHOBUGAWA Yugo (30621198)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. HASEGAWA Go (90251800)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. SAITO Kosuke (30460356)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. Morimoto Noriko (40286555)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. NAKAMURA Hiroyuki (70256866)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 宮入烈 (10296626)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 今井千速 (90419284)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 樋口雅也 (50334678)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. HIBINO Akinobu

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. KONDO Hiroki

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
14. ODAGIRI Takashi

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. SUZUKI Hiroshi

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
16. TAMURA Tsutomu

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. Dapat Clyde

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. Yadanar Kyaw

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
19. Yi Yi Myint

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. Nay Lin

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
21. Htay Htay Tin

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
22. Khin Yi OO

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
23. Latt Latt Kyaw

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
24. Rohaizat Mohd Hassan

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
25. Shamsul Azhar Shah

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
26. Nguyen Le Khanh Hang

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
27. Nguyen Phuong Anh

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
28. Le Quynh Mai

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
29. Zaraket Hassan

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
30. Dbaibo Ghassan

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
31. Aizawa Yuta

# of Collaborated Projects: 1 results

# of Collaborated Products: 9 results
32. IZUMITA Ryouhei

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
33. EDAYOSHI Mina

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
34. 斎藤孔良

# of Collaborated Projects: 0 results

# of Collaborated Products: 5 results

Saitoh Akihiko 齋藤 昭彦

SAITOH Akihiko 齋藤 昭彦

Research Projects

Research Products

Co-Researchers

ヒトパレコウイルス3型の受容体同定と感染重症化機序の解明Ongoing

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Investigations for Effective Therapies for Human Parechovirus Type 3 InfectionPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Relation of viral infection during pregnancy to hearing-impaired children

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Mechanisms of Onset of Human Parechovirus Type 3 Infection in Neonates -A role of Transfer Antibodies-Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Influenza virus transmission, evolution and appearance of drug resistant viruses in Asia.

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Book] インフルエンザ診療ガイド2015ー2016「ノイラミニダーゼ阻害剤の耐性」2015

Author(s)

Total Pages

Publisher

Data Source

[Journal Article] Innate Immune Responses in Serum and Cerebrospinal Fluid From Neonates and Infants Infected With Parechovirus-A3 or Enteroviruses2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Novel scoring system for differentiating parechovirus-A3 and enterovirus infection in neonates and young infants2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Parechovirus-A3 encephalitis presenting with focal seizure mimicking herpes simplex virus infection2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Persistence of High Neutralizing Antibody Titers After Neonatal and Early Infantile Infection with Parechovirus-A32019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Intrafamilial Transmission of Parechovirus A and Enteroviruses in Neonates and Young Infants.2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Human parechovirus type 3 infection: An emerging infection in neonates and young infants2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Clinical Utility of Serum Samples for Human Parechovirus Type 3 Infection in Neonates and Young Infants: The 2014 Epidemic in Japan2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Performance of a real-time PCR based approach and droplet digital PCR in detecting human parechovirus type 3 RNA2016

Author(s)

Journal Title

DOI

Data Source

Saitoh Akihiko 齋藤昭彦

SAITOH Akihiko 齋藤昭彦