Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5091670 | Ultrasonic motor | Fujio Ozawa, Masao Kasuga, Minako Suzuki, Takako Shibayama | 1992-02-25 |
| 5023853 | Electric apparatus with silent alarm | Nobuo Tsukada | 1991-06-11 |
| 4756561 | Sealing gasket | Kouji Takatou | 1988-07-12 |
| 4425304 | Catalytic converter | — | 1984-01-10 |
| 4328188 | Catalytic converters for exhaust systems of internal combustion engines | — | 1982-05-04 |