Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33942 | Double air-fuel ratio sensor system in internal combustion engine | Toshiyasu Katsuno, Nobuaki Kayanuma, Yasushi Sato, Toshio Tanahashi, Yoshiki Chujo +3 more | 1992-06-02 |
| 5000299 | Shock absorber using electro-viscous fluid | Katsuhiro Goto, Akiyoshi Ide, Masaaki Takizawa | 1991-03-19 |
| D312901 | Electric vacuum cleaner | Tomoyuki Miyata, Masao Sunagawa, Akira Iwao, Naruhiko Suzuki | 1990-12-11 |
| D302878 | Electric vacuum cleaner | Shigetaka Kimura, Masao Sunagawa, Yoshitaro Ishii, Fumio Jyoraku | 1989-08-15 |
| 4739614 | Double air-fuel ratio sensor system in internal combustion engine | Toshiyasu Katsuno, Nobuaki Kayanuma, Yasushi Sato, Toshio Tanahashi, Yoshiki Chujo +3 more | 1988-04-26 |
| 4665740 | Combustion process sensor | Hisashi Matsumoto, Yoshikazu Motogami, Masahiko Miyahara, Tokuta Inoue, Keiji Aoki +6 more | 1987-05-19 |