Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12007071 | Hydrogen pressure vessel | Takafumi Hosoya, Hironobu Arashima | 2024-06-11 |
| 11879592 | Gas pressure vessel | Takafumi Hosoya, Hirokazu Tsuji | 2024-01-23 |
| 11543079 | Pressure vessel | Takafumi Hosoya, Hirokazu Tsuji | 2023-01-03 |
| 10941905 | Pressure accumulation container | Yusuke Yanagisawa, Hirokazu Tsuji | 2021-03-09 |
| 10227682 | High-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics and method for producing the same | Kouichi Takasawa, Ryoji Ishigaki, Yasuhiko Tanaka | 2019-03-12 |
| 9151706 | Method of determining fatigue crack lifetime in high-pressure hydrogen environment | — | 2015-10-06 |
| 8974612 | High-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics and method for producing the same | Kouichi Takasawa, Ryoji Ishigaki, Yasuhiko Tanaka | 2015-03-10 |
| 8313589 | High-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics and method for producing the same | Koichi Takasawa, Ryoji Ishigaki, Yasuhiko Tanaka | 2012-11-20 |
| 8234930 | Method of determining fatigue of pressure-resistant component for high-pressure hydrogen | Ryoji Ishigaki, Yasuhiko Tanaka | 2012-08-07 |
| 7035746 | Method of judging hydrogen embrittlement cracking of material used in high-temperature, high-pressure hydrogen environment | Tatsuo Hasegawa, Rinzo Kayano, Hirokazu Inoue | 2006-04-25 |