Forward Citations = 24

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12 inventors (with patents filed for the assignee):

Kazuhiro Utsunomiya (2 out of 2 patents)

Nobumi Ooyama (2 out of 2 patents)

Hideo Sakaba (2 out of 2 patents)

4. Susumu Isobe (1 out of 9 patents)

5. Tatsuo Kondo (1 out of 5 patents)

6. Hajime Nakajima (1 out of 3 patents)

7. Yasukazu Ishida (1 out of 1 patent)

8. Katsutoshi Watanabe (1 out of 1 patent)

9. Takeshi Okada (1 out of 2 patents)

10. Taiki Kobayashi (1 out of 4 patents)

11. Mitsuru Kamei (1 out of 1 patent)

12. Satoru Nakai (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 5021210 - Anomaly diagnosis system for a nuclear reactor core (1991-06-04),

2. 4943683 - Anomaly diagnosis system for a nuclear reactor core (1990-07-24),

3. 4886111 - Heat pipe type heat exchanger (1989-12-12),

4. 4361443 - Solid solution strengthened iron-base austenitic alloy (1982-11-30),

Company Overview

Power Reactor and Nuclear Fuel Development Corporation (PNRDC) is a leading organization dedicated to the research, development, and production of nuclear fuel for power reactors. With state-of-the-art facilities and a team of skilled professionals, PNRDC is committed to promoting the use of nuclear energy for sustainable power generation. The corporation also offers expertise in reactor design, safety, and operations to support the nuclear industry worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#3,058 in Tokyo

#7,588 in Japan

Tokyo, Japan

Power Reactor and Nuclear Fuel Development Corporation

Forward Citations = 24

12 inventors:

Kazuhiro Utsunomiya (2 out of 2 patents)

Nobumi Ooyama (2 out of 2 patents)

Hideo Sakaba (2 out of 2 patents)

4. Susumu Isobe (1 out of 9 patents)

5. Tatsuo Kondo (1 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Power Reactor and Nuclear Fuel Development Corporation. Retrieved from https://idiyas.com/company/power-reactor-and-nuclear-fuel-development

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]