Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5986545 | Vehicle driveability evaluation system | Toshio Tanahashi | 1999-11-16 |
| 5795992 | Method of testing durability of exhaust gas purification device | Toshio Tanahashi, Hiroyuki Domyo, Hiroshi Hirayama, Kazuaki Sobue, Tsuneo Higashi +4 more | 1998-08-18 |
| 5722238 | Device for evaluating catalyst performance deterioration | Toshio Tanahashi, Koji Yokota, Shinichi Matsunaga, Hideo Sobukawa, Ichiro Konomi +1 more | 1998-03-03 |
| 5582805 | Electrically heated catalytic apparatus | Kouji Yoshizaki, Takaaki Itou, Hiroshi Hirayama, Tetsuo Nagami, Kiyohiko Watanabe +11 more | 1996-12-10 |
| 5582803 | Electrically heated catalytic apparatus | Kouji Yoshizaki, Takaaki Itou, Hiroshi Hirayama, Tetsuo Nagami, Kiyohiko Watanabe +11 more | 1996-12-10 |
| 5529759 | Electrically heated catalytic converter for an engine | Tetsuo Nagami | 1996-06-25 |
| 5494642 | Electrically heated catalytic converter for an engine | — | 1996-02-27 |
| 4271799 | Knocking control device | Takayuki Kato, Kazumasa Sumi, Hideo Arakawa, Toshimitsu Ito | 1981-06-09 |
| 4271469 | Method for detecting knocking in internal combustion engine | Hisasi Kawai, Toshimitsu Ito, Kazuo Iwase | 1981-06-02 |
| 4207277 | Float chamber means for a carburetor | Toshimitsu Ito | 1980-06-10 |
| 4195608 | Fuel supply system for engines | Toshimitsu Ito, Masahiko Nakada | 1980-04-01 |
| 4181111 | Method for feeding a fuel and a fuel feed device for use in an internal combustion engine | Masahiko Nakada | 1980-01-01 |