Hiroyuki Hashimoto

Patent Attorney
Technical Expert

Practice Areas

Mechanical and Civil Engineering


Ph.D., Graduate School of Science and Engineering, Ibaraki University

Professional Background

Correns Corporation; Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology; Private German nonferrous metals company; Private patent firm


Prosecution, opinions, and oppositions



Dr. Hashimoto specializes in general machinery, fluid machinery, heat exchangers, optical fibers, and control systems. He conducted research on heat transfer accompanying phase changes (boiling, condensation). He has experience in consulting and sales of optical measuring machines, research and development of next generation nuclear reactors, making use of the supercritical carbon-dioxide (CO2) loop, and production and distribution of nonferrous metal powders. Dr. Hashimoto has also lived in Germany on an overseas assignment.
Dr. Hashimoto regularly presents lectures on a wide range of IP topics at foreign IP organizations such as BPLA, ACCJ, and IPLAC.

- Seminar organized by RIPLA (The Rochester Intellectual Property Law Association) in November 2019
Theme: Overview of IP Trends and Practice in Japan and Practical Tips in Light of Legal Comparison between USA and Japan
Seminar organized by AHK Japan in June 2019
Theme: Introduction to the Japanese Intellectual Property System
Webinar organized by the EU-Japan Technology Transfer Helpdesk, EU-Japan Centre for Industrial Cooperation in May 2019
Theme: Patent enforcement in Japan – how to efficiently utilize your patent rights
Seminar organized by AHK Japan in March 2019
Theme: Overview of JP Patent Examination for IoT, AI related applications
Seminar organized by Intellectual Property Law Association of Chicago (IPLAC) in March 2019
Theme: Introduction of Unique IP Practices in Japan – Patentability of Method for Treating a Human Body and AI/IoT Inventions
- Seminar organized by RIPLA (The Rochester Intellectual Property Law Association) for their CLE Seminar in November 2021
Theme: Nuts and Bolts for Patent Obtainment in Japan
- Seminar organized by Trade Commissioner Service, Embassy of Canada in June 2022
Theme: Protecting your Intellectual Property in Japan

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