Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660748 | Laser beam machine with an optical fiber cable | Hisao Tanaka, Akaru Usui, Shigehiro Yoshiyasu, Akira Ishimori | 1997-08-26 |
| 5065060 | Flywheel type energy storage apparatus | Isao Takahashi, Kazuhiko Tanaka, Akinori Nishihiro | 1991-11-12 |