SAKAI Masao 酒井正夫

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SAKAI MASAO 酒井正夫

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Researcher Number	30344740
Other IDs
External Links
Affiliation (Current)	2025: 東北大学, データ駆動科学・AI教育研究センター, 准教授
Affiliation (based on the past Project Information) *help	2021 – 2024: 東北大学, データ駆動科学・AI教育研究センター, 准教授 2016 – 2018: 東北大学, 教育情報基盤センター, 准教授 2012 – 2013: 東北大学, 教育情報基盤センター, 准教授 2009: Tohoku University, 教育情報基盤センター, 准教授 2005 – 2008: 東北大学, 高等教育開発推進センター, 講師 2006: Tohoku University, Center for the Advancement of Higher Education, Lecturer, 高等教育開発促進センター, 講師
Review Section/Research Field	Principal Investigator Basic Section 60060:Information network-related / Information security / Computer system/Network / System engineering / Control engineering Except Principal Investigator Intelligent informatics
Keywords	Principal Investigator プライバシ保護 / P2P / スマートコントラクト / IoT / ブロックチェーン / クラウド / 実証型実験 / データ利活用 / 地域DX / Web3 … More / 個人データ / 市民アクティビティ / Peer to Peer / 新型コロナウイルス接触確認アプリCOCOA / 人流量 / データ活用 / プライバシー保護 / 情報セキュリティ / 暗号通貨 / 再生成符号 / ストレージ / Bitcoin2.0 / セキュアストレージ / 匿名通信 / 秘密分散法 / プライバシ / Peer to Peer (P2P) / 暗号化 / 秘密分散共有 / 情報理論的安全性 / Windowsアプリ / クラウドストレージ / ソフトウェア / オフライン行動履歴 / 秘密分散共有法 / モデル化 / セキュリティ / 予測 / 時系列 / ストリーミング / デジタル署名 / リアプノフ / 複雑系 / 解析・評価 … More Except Principal Investigator Heuristic methods / Functional formation / Neural networks / 発見的手法 / 機能形成 / ニューラルネットワーク Less

Web3技術を用いた地域DX推進のためのデータ利活用技術開発の実証型研究Principal Investigator
- Principal Investigator
  
  酒井正夫
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60060:Information network-related
- Research Institution
  Tohoku University
Development of smart contract technology for secure and practical personal data utilizationPrincipal Investigator
- Principal Investigator
  
  SAKAI Masao
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60060:Information network-related
- Research Institution
  Tohoku University
The use of IoT devices: Development of technologies for pure P2P type cloud storage with both confidentiality and reliabilityPrincipal Investigator
- Principal Investigator
  
  SAKAI MASAO
- Project Period (FY)
  2016 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Information security
- Research Institution
  Tohoku University
Development of a method for secure recording off-line activities on cloud strage with ex-post verifiable format and utilizing itPrincipal Investigator
- Principal Investigator
  
  SAKAI MASAO
- Project Period (FY)
  2012 – 2013
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Computer system/Network
- Research Institution
  Tohoku University
A Development of Adaptive Digital Signature of Stream DataPrincipal Investigator
- Principal Investigator
  
  SAKAI Masao
- Project Period (FY)
  2008 – 2009
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  System engineering
- Research Institution
  Tohoku University
未知システムから観測されたカオス時系列に対する高精度なリアプノフ解析手法の開発Principal Investigator
- Principal Investigator
  
  酒井正夫
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Control engineering
- Research Institution
  Tohoku University
Study on Emergent Functional Evolution and Heuristic Knowledge Acquisition by Neural Structural Development
- Principal Investigator
  
  HOMMA Noriyasu
- Project Period (FY)
  2005 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Intelligent informatics
- Research Institution
  Tohoku University

All 2018 2017 2014 2010 2009 2008 2007 2006 Other

All Journal Article Presentation Patent

[Journal Article] ブロックチェーンと中央集権型サーバの連携による実用的スマートコントラクトの実現手法2018
- Author(s)
  福光正幸，長谷川真吾，磯辺秀司，岩田直樹，岩崎淳也，小泉英介，中田恒夫，酒井正夫
- Journal Title
  
  第82回コンピュータセキュリティ研究会 (2018-CSEC-82)論文集
  
  Volume: 2018-CSEC-82
- Data Source
  KAKENHI-PROJECT-16K00181
[Journal Article] 自律分散型P2Pストレージの定量的信頼性評価2017
- Author(s)
  福光正幸，長谷川真吾，岩崎淳也，酒井正夫
- Journal Title
  
  2017年暗号と情報セキュリティシンポジウム(SCIS2017) 論文集
  
  Volume: 2D2-5 Pages: 1-5
- Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-16K00181
[Journal Article] A Proposal of a Secure P2P-type Storage Scheme by using the Secret Sharing and the Blockchain2017
- Author(s)
  Masayuki Fukumitsu, Shingo Hasegawa, Jun-ya Iwazaki, Masao Sakai, Daiki Takahashi
- Journal Title
  
  Proceeding of The 31-st IEEE International Conference on Advanced Information Networking and Applications (AINA-2017)
  
  Volume: 1 Pages: 803-810
- DOI
  10.1109/aina.2017.11
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-16K00181
[Journal Article] A Method for Constructing an Autonomous Decentralized P2P Storage with High Confidentiality and Reliability2017
- Author(s)
  Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Jun-ya Iwazaki, Eisuke Koizumi and Masao Sakai
- Journal Title
  
  The Proceeding of 4th International Workshop on Information and Communication Security 2017
  
  Volume: 1 Pages: 439-444
- DOI
  10.1109/candar.2017.67
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K00181
[Journal Article] Human Brain Activities Related to Manual Control of a Nonholonomic System: An F-MRI Study2009
- Author(s)
  N. Homma, S. Kato, T. Goto, Masao Sakai, N. Sugita, M. Yoshizawa, Y. Sassa, et al.
- Journal Title
  
  IJACE International Journal of Advanced Computer Engineering Vol.2
  
  Pages: 129-133
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20760256
[Journal Article] A new motion management method for lung tumor tracking radiation therapy2009
- Author(s)
  N. Homma, M. Sakai, H. Endo, M. Motsuya, Y. Takai, M. Yoshizawa
- Journal Title
  
  WSEAS TRANSACTIONS on SYSTEMS Vol.8,No.4
  
  Pages: 471-480
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20760256
[Journal Article] 放射線治療のための肺腫瘍位置変動の周期ダイナミクス予測に関する一考察2009
- Author(s)
  市地, 酒井, 本間, 高井, 吉澤
- Journal Title
  
  計測自動制御学会東北支部45周年記念学術講演会資料 1
- Data Source
  KAKENHI-PROJECT-20760256
[Journal Article] Human Brain Activities Related to Manual Control of a Nonholonomic System : An F-MRI Study2009
- Author(s)
  N.Homma, S.Kato, T.Goto, M.Sakai, N.Sugita, M.Yoshizawa, Y.Sassa, et al.
- Journal Title
  
  IJACE International Journal of Advanced Computer Engineering 2
  
  Pages: 129-133
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20760256
[Journal Article] 形状的特徴量抽出に基づく胸部X線CT画像における肺結核陰影パターンの自動鑑別2008
- Author(s)
  武井、本間、石橋、酒井、後藤、吉澤、阿部
- Journal Title
  
  知能と情報(日本知能情報ファジィ学会誌) 20
  
  Pages: 108-116
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18760313
[Journal Article] 音情報に対する電子透かし-乱択法とうなり法-2007
- Author(s)
  三浦, 酒井, 静谷
- Journal Title
  
  電子情報通信学会技術研究報告(IEICE Technical Report, ISEC2006-161) 106・597
  
  Pages: 125-130
- NAID
  110006248128
- Data Source
  KAKENHI-PROJECT-18760313
[Journal Article] 公開鍵基盤の頑健化について2007
- Author(s)
  吉田, 長谷川, 磯辺, 小泉, 酒井, 静谷, 布田, 前田
- Journal Title
  
  電子情報通信学会技術研究報告(IEICE Technical Report, ISEC2006-160) 106・597
  
  Pages: 119-124
- NAID
  110006248127
- Data Source
  KAKENHI-PROJECT-18760313
[Journal Article] Self-organizing neural networks for incremental category learning2006
- Author(s)
  Masao Sakai
- Journal Title
  
  Proc. 11^<1h> AROB 2006
  
  Pages: 520-523
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-17500083
[Journal Article] Self-organizing neural networks for incremental category learning2006
- Author(s)
  Masao Sakai
- Journal Title
  
  Proc. 11^<th> AROB 2006
  
  Pages: 520-523
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17500083
[Journal Article] Self-Organizing Neural Networks using Discontinuous Teacher Data for Incremental Category Learning2006
- Author(s)
  M.Sakai, N.Homma, K.Abe
- Journal Title
  
  Proc. of SICE-ICCAS International Joint Conference 2006 in BEXCO 1・1
  
  Pages: 520-523
- Data Source
  KAKENHI-PROJECT-18760313
[Journal Article] Self-organizing neural networks for incremental category learning2006
- Author(s)
  Masao Sakai
- Journal Title
  
  Proc.11^<th> AROB 2006
  
  Pages: 520-523
- Data Source
  KAKENHI-PROJECT-17500083
[Journal Article] Self-Organizing Neural Networks using Discontinuous Teacher Data for Incremental Category Learning2006
- Author(s)
  Masao Sakai
- Journal Title
  
  Proc. SICE-ICASE
  
  Pages: 132-136
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17500083
[Patent] 情報仲介装置、情報提供装置、及び情報取得装置2018
- Inventor(s)
  酒井正夫、中田、岩田、福光、長谷川、磯辺、岩崎、小泉
- Industrial Property Rights Holder
  酒井正夫、中田、岩田、福光、長谷川、磯辺、岩崎、小泉
- Industrial Property Rights Type
  特許
- Industrial Property Number
  2018-134509
- Filing Date
  2018
- Data Source
  KAKENHI-PROJECT-16K00181
[Patent] 情報処理システム、公開鍵の変更方法、プログラム、および情報処理システムの製造方法2018
- Inventor(s)
  酒井正夫、岩崎淳也、小泉英介、長谷川真吾、磯邉秀司、福光正幸
- Industrial Property Rights Holder
  酒井正夫、岩崎淳也、小泉英介、長谷川真吾、磯邉秀司、福光正幸
- Industrial Property Rights Type
  特許
- Industrial Property Number
  2018-211811
- Filing Date
  2018
- Data Source
  KAKENHI-PROJECT-16K00181
[Patent] 情報処理システム、データ提供方法、および情報処理システムの製造方法2018
- Inventor(s)
  酒井正夫、岩崎淳也、小泉英介、長谷川真吾、磯邉秀司、福光正幸
- Industrial Property Rights Holder
  酒井正夫、岩崎淳也、小泉英介、長谷川真吾、磯邉秀司、福光正幸
- Industrial Property Rights Type
  特許
- Industrial Property Number
  2018-211813
- Filing Date
  2018
- Data Source
  KAKENHI-PROJECT-16K00181
[Presentation] Bitcoin2.0の現状～ブロックチェーン技術の有用性と課題～2018
- Author(s)
  酒井正夫
- Organizer
  東北大学大学院情報科学研究科主催第11回総合科学を考えるセミナー「新しい時代を牽引する情報通信技術」
- Invited
- Data Source
  KAKENHI-PROJECT-16K00181
[Presentation] A Proposal of a Secure P2P-type Storage Scheme by using the Secret Sharing and the Blockchain2017
- Author(s)
  Masayuki Fukumitsu, Shingo Hasegawa, Jun-ya Iwazaki, Masao Sakai, Daiki Takahashi
- Organizer
  The 31-st IEEE International Conference on Advanced Information Networking and Applications (AINA-2017)
- Place of Presentation
  Taipei, Taiwan
- Year and Date
  2017-03-27
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K00181
[Presentation] ブロックチェーン：医療機関間の安全で自律分散的なデータ連携に向けて2017
- Author(s)
  岩崎淳也，酒井正夫
- Organizer
  第56回日本生体医工学会大会，OS-7.3 サイバー医療：最近の技術革新と応用例 (第7会場) 2017年5月3-5日
- Invited
- Data Source
  KAKENHI-PROJECT-16K00181
[Presentation] 自律分散型P2Pストレージの定量的信頼性評価2017
- Author(s)
  福光正幸，長谷川真吾，岩崎淳也，酒井正夫
- Organizer
  2017年暗号と情報セキュリティシンポジウム(SCIS2017)
- Place of Presentation
  ロワジールホテル那覇（沖縄県沖縄市）
- Year and Date
  2017-01-24
- Data Source
  KAKENHI-PROJECT-16K00181
[Presentation] 秘密分散法によりクラウドストレージを安全に活用する技術の実用化研究2014
- Author(s)
  福光正幸、長谷川真吾、岩崎淳也、酒井正夫,高橋大樹
- Organizer
  SCIS2014暗号と情報セキュリティシンポジウム
- Place of Presentation
  鹿児島市
- Year and Date
  2014-01-23
- Data Source
  KAKENHI-PROJECT-24700058
[Presentation] Development of a Method using Encryption and Secret Sharing for Making Cloud Storage Secure and its Application2014
- Author(s)
  Masayuki Fukumitsu, Shingo Hasegawa, Junya Iwazaki, Masao Sakai, and Daiki Takahashi
- Organizer
  the International Symposium on Information Theory and Its Applications (ISITA2014)
- Place of Presentation
  オーストラリア・メルボルン(under review)
- Year and Date
  2014-10-29
- Data Source
  KAKENHI-PROJECT-24700058
[Presentation] Prediction Method of Unsteady Periodic Tumor Motion for Readiotherapy2010
- Author(s)
  Masao Sakai
- Organizer
  5th International Symposium on Medical, Bio- and Nano-Electoronics
- Place of Presentation
  Senda Japan
- Year and Date
  2010-02-25
- Data Source
  KAKENHI-PROJECT-20760256
[Presentation] A Time Variant Seasonal ARIMA Model for Lung Tumor Motion Prediction2010
- Author(s)
  K. Ichiji, M. Sakai, N. Homma, Y. Takai, M. Yoshizawa
- Organizer
  The Fifteenth International Symposium on Artificial Life and Robotics 2010(AROB 15th '10)
- Place of Presentation
  B-Con Plaza, Beppu, Oita, Japan
- Year and Date
  2010-02-05
- Data Source
  KAKENHI-PROJECT-20760256
[Presentation] Prediction Method of Unsteady Periodic Tumor Motion for Readiotherapy2010
- Author(s)
  Masao Sakai
- Organizer
  5^<th> International Symposium on Medical, Bio- and Nano-Electoronics
- Place of Presentation
  Sendai, Japan
- Data Source
  KAKENHI-PROJECT-20760256
[Presentation] 追跡照射放射線治療のための腫瘍位置の呼吸性変動予測法2009
- Author(s)
  遠藤、酒井正夫、本間、高井、吉澤
- Organizer
  計測自動制御学会東北支部第249回研究集会
- Place of Presentation
  東北大学工学部
- Year and Date
  2009-03-13
- Data Source
  KAKENHI-PROJECT-20760256
[Presentation] 追跡照射放射線治療のための腫瘍位置の呼吸性変動予測法2009
- Author(s)
  遠藤, 酒井正夫, 本間, 高井, 吉澤
- Organizer
  計測自動制御学会東北支部第249回研究集会
- Place of Presentation
  東北大学
- Year and Date
  2009-03-13
- Data Source
  KAKENHI-PROJECT-20760256
[Presentation] 放射線治療のための肺腫瘍位置変動の周期ダイナミクス予測に関する一考察2009
- Author(s)
  市地, 酒井正夫, 本間, 高井, 吉澤
- Organizer
  計測自動制御学会東北支部45周年記念学術講演会資料
- Place of Presentation
  岩手大学
- Year and Date
  2009-09-07
- Data Source
  KAKENHI-PROJECT-20760256
[Presentation] 追跡照射放射線治療のための肺腫瘍位置の呼吸性変動予測モデル2008
- Author(s)
  酒井正夫, 本間, 高井
- Organizer
  第51回自動制御連合講演会
- Place of Presentation
  山形大学
- Year and Date
  2008-11-22
- Data Source
  KAKENHI-PROJECT-20760256
[Presentation] 秘密分散法によりクラウドストレージを安全に活用する技術の実用化研究
- Author(s)
  福光正幸, 長谷川真吾, 岩崎淳也, 酒井正夫, 高橋大樹
- Organizer
  SCIS2014 暗号と情報セキュリティシンポジウム
- Place of Presentation
  鹿児島市
- Data Source
  KAKENHI-PROJECT-24700058

1. HOMMA Noriyasu (30282023)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. YOSHIZAWA Makoto (60166931)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

SAKAI Masao 酒井 正夫

SAKAI MASAO 酒井 正夫

Research Projects

Research Products

Co-Researchers

Web3技術を用いた地域DX推進のためのデータ利活用技術開発の実証型研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of smart contract technology for secure and practical personal data utilizationPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

The use of IoT devices: Development of technologies for pure P2P type cloud storage with both confidentiality and reliabilityPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Development of a method for secure recording off-line activities on cloud strage with ex-post verifiable format and utilizing itPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

A Development of Adaptive Digital Signature of Stream DataPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

未知システムから観測されたカオス時系列に対する高精度なリアプノフ解析手法の開発Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Study on Emergent Functional Evolution and Heuristic Knowledge Acquisition by Neural Structural Development

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] ブロックチェーンと中央集権型サーバの連携による実用的スマートコントラクトの実現手法2018

Author(s)

Journal Title

Data Source

[Journal Article] 自律分散型P2Pストレージの定量的信頼性評価2017

Author(s)

Journal Title

Data Source

[Journal Article] A Proposal of a Secure P2P-type Storage Scheme by using the Secret Sharing and the Blockchain2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A Method for Constructing an Autonomous Decentralized P2P Storage with High Confidentiality and Reliability2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Human Brain Activities Related to Manual Control of a Nonholonomic System: An F-MRI Study2009

Author(s)

Journal Title

Data Source

[Journal Article] A new motion management method for lung tumor tracking radiation therapy2009

Author(s)

Journal Title

Data Source

[Journal Article] 放射線治療のための肺腫瘍位置変動の周期ダイナミクス予測に関する一考察2009

Author(s)

Journal Title

Data Source

[Journal Article] Human Brain Activities Related to Manual Control of a Nonholonomic System : An F-MRI Study2009

Author(s)

Journal Title

SAKAI Masao 酒井正夫

SAKAI MASAO 酒井正夫