Tatsuya Sato

Affiliation

  • Hitachi, Ltd.
    • Chief Researcher, Research & Development Group
    • Senior OSS Specialist, Hitachi OSPO

Main Research Fields and Interests

  • Blockchain
  • System operations management
  • Open source software

Note: Currently, only English-language accomplishments are listed here. For a full version, including Japanese accomplishments, please refer to the Japanese page.

Research Achievements

Refereed Journals

  • Tatsuya Sato, Taku Shimosawa, Nariyoshi Yamai, “BillingOpsSC: Smart Contract-based Service Billing Management Method for Consortium Blockchain-based Systems”, IPSJ Journal of Information Processing (Special issue of “Applications and the internet” in conjunction with the main topics of COMPSAC 2023), Vol.32, pp.605-617, 2024. [DOI]
  • Tatsuya Sato, Taku Shimosawa, Yuki Kondo, Nao Nishijima, “Toward fully-decentralized system with hyperledger fabric”, IEICE Communications Express, Vol.12, No.5, pp.223-229, 2023. [DOI]
  • Tatsuya Sato, Taku Shimosawa, Yosuke Himura, “Operations Smart Contract to Realize Decentralized System Operations Workflow for Consortium Blockchain”, IEICE Transactions on Communications (Special Section: Towards Management for Future Communications and Services in Conjunction with Main Topics of APNOMS2021), Vol.E105-B, No.11, pp.1318-1331, 2022. [DOI] [ArXiv]
  • Tatsuya Sato, Yosuke Himura, Yoshiko Yasuda, “Evidence-based Context-aware Log Data Management for Integrated Monitoring System”, IEICE Transactions on Communications, Vol.E101-B, No.9, pp.1997-2006, 2018. [DOI]
  • Masahiro Yoshizawa, Tatsuya Sato, Ken Naono, “Integrated Monitoring Software for Application Service Managers”, IEEE Transactions on Network and Service Management, Vol.11, No.3, pp.321-332, 2014. [DOI]
  • Tatsuya Sato, Buntaro Shizuki, Jiro Tanaka, “ORCA: A Support System for Understanding GUI Programs by Visualizing Execution Traces Synchronized with Screen Transitions” (in Japanese), IPSJ Transaction on Programming, Vol.2, No.3, pp.1-19, 2009. [IPSJ]

Refereed International Conferences

  • Tatsuya Sato, Taku Shimosawa, Nariyoshi Yamai, “Concept of HAOpsSC: Toward Decentralized Operations for Ensuring High Availability in Consortium Blockchain-based Systems”, 2025 IEEE International Conference on Blockchain and Cryptocurrency (ICBC), to appear.
  • Santosh Kumar Maurya, Tatsuya Sato, Satoshi Ito, “Public vs. Permissioned Blockchains for DAOs: Insights for standardized implementations”, 2025 IEEE International Conference on Blockchain and Cryptocurrency (ICBC), to appear.
  • Tatsuya Sato, Taku Shimosawa, Nariyoshi Yamai, “BillingOpsSC: Smart Contract-based Service Billing Management Method for Consortium Blockchain-based Systems”, 2023 IEEE 47th Annual Computers, Software, and Applications Conference (COMPSAC), pp. 1101-1106, 2023. [DOI]
  • Tatsuya Sato, Taku Shimosawa, Yosuke Himura, “OpsSC: Decentralized Blockchain Network Operation Workflow for Hyperledger Fabric”, 2021 IEEE International Conference on Blockchain (Blockchain), pp. 287-294, 2021. [DOI]
  • Taku Shimosawa, Tatsuya Sato, Satoshi Oshima, “BCVerifier: A Tool to Verify Hyperledger Fabric Ledgers”, 2020 IEEE International Conference on Blockchain (Blockchain), pp. 291-299, 2020. [DOI]
  • Tatsuya Sato, Yosuke Himura, “Smart-Contract Based System Operations for Permissioned Blockchain”, 2018 9th IFIP International Conference on New Technologies, Mobility and Security (NTMS), pp. 1-6, 2018. [DOI]
  • Tatsuya Sato, Yosuke Himura, Yoshiko Yasuda, “Evidence-based Context-aware Log Data Management for Integrated Monitoring System”, 2016 18th Asia-Pacific Network Operations and Management Symposium (APNOMS), pp. 1-4, 2016. [DOI]
  • Tatsuya Sato, Buntaro Shizuki, Jiro Tanaka, “Support for Understanding GUI Programs by Visualizing Execution Traces Synchronized with Screen Transitions”, 2008 16th IEEE International Conference on Program Comprehension (ICPC), pp. 272-275, 2008. [DOI]

Patents

(Under construction)

Open Source Software Community Activities

Open Source Software Development

Refereed Presentations

  • Tatsuya Sato, “Toward Fully-Decentralized System With Hyperledger Fabric - Requirement Analysis of Decentralized System Configuration/Operations and Potential Use of a Decentralized Operations Tool “OpsSC””, Hyperledger Global Forum 2022. [PDF] [Youtube]
  • Tatsuya Sato, “Operations Smart Contract (OpsSC) for Hyperledger Fabric v2.x”, Hyperledger Global Forum 2021. [PDF] [Youtube]
  • Taku Shimosawa, Tatsuya Sato, “Practical Tools for Enterprise Uses of Hyperledger Fabric (Audit and System Operations)”, Hyperledger Global Forum 2020. [PDF] [Youtube]

Non-Refereed Presentations / Articles

  • Tatsuya Sato, “Meet the Hyperledger Fabric Maintainers – Tatsuya Sato, Hitachi, Ltd” (Interview article), Hyperledger Blog, 2024. [Blog]
  • Tatsuya Sato, “Hyperledger Fabric in Production”, Hyperledger Member Summit 2023 APAC, 2023. [SpeakerDeck]

Awards