Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7383831 | Combustion engine chamber | Shigeki Nabetani, Tomoharu Sakai, Hiroshi Yanagisawa | 2008-06-10 |
| 5109703 | Vortex flow meter | Yasuo Tada, Katsuaki Yasui | 1992-05-05 |
| 5052229 | Vortex flowmeter | Hisato Ishikuro, Yasuo Tada | 1991-10-01 |
| 5029465 | Vortex flowmeter | Hisato Azuma, Hisato Ishiguro, Yasuo Tada | 1991-07-09 |