Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11308930 | Electronic horn | Katsunori Uchimura, Junjiro Yoshimura, Toshihiko Kawamura, Yoshio Miyata | 2022-04-19 |
| 11145286 | Electronic horn | Katsunori Uchimura, Yoshio Miyata, Tetsuo Momo, Toshihiko Kawamura, Junjiro Yoshimura | 2021-10-12 |
| 9950663 | Electronic vehicle horn | Toshihiko Kawamura, Takashi Yamada | 2018-04-24 |
| 8223987 | Attachment structure for a sound generating apparatus | Kiyosei Shibata, Kiyoshi Ootani, Munekazu Yanagida, Yuichi Nakajima, Naoki Fujikawa | 2012-07-17 |
| 6720740 | Discharge lamp ballast circuit having snubber circuit | — | 2004-04-13 |
| 6710545 | Discharge lamp apparatus having directly coupled lamp and electronic controller | Hironao Yamaguchi | 2004-03-23 |
| 6700328 | Discharge lamp driver circuit designed to minimize radiation or noise | — | 2004-03-02 |
| 6672747 | Vehicle headlamp having removable lighting control unit | Hiranao Yamaguchi | 2004-01-06 |
| 6670778 | AC power generating apparatus having electrolytic capacitor and ceramic capacitor | — | 2003-12-30 |
| 6642668 | Discharge lamp device for reducing noise radiation and surge pulse current | Hironao Yamaguchi | 2003-11-04 |
| 6291945 | Discharge lamp lighting device | Koichi Kato, Kenji Aida | 2001-09-18 |
| 5910712 | Method and apparatus for reduced discharge lamp driver test time | — | 1999-06-08 |
| 5880563 | Device for accurately detecting end of usage lifetime of a discharge lamp | Koichi Kato, Kenji Aida | 1999-03-09 |
| 5751121 | High voltage discharge bulb control | Noboru Yamamoto | 1998-05-12 |
| 5706185 | Control apparatus for a lighting system of a discharge lamp used in various types of vehicles | Koichi Kato, Kenji Aida | 1998-01-06 |
| 5608815 | Device for testing an image of a test object | Tatsuo Yamamura | 1997-03-04 |
| 5600208 | Discharge lamp unit having separable high-voltage transformer safeguard | Kouichi Katou, Kenji Aida | 1997-02-04 |
| 5404854 | Knock control system for internal combustion engine | Koichi Kamabora, Koji Sakakibara, Hiroshi Haraguchi, Toshiharu Iwata, Toshihito Nonaka | 1995-04-11 |
| 5216369 | Ignition occurrence detecting device for use in an ignition apparatus | — | 1993-06-01 |
| 4809668 | Ignition system for internal combustion engine | Ko Narita, Toshihito Nonaka | 1989-03-07 |
| 4773380 | Current flowing time period control system for ignition coil of internal combustion engine | Ko Narita, Takeshi Matsui | 1988-09-27 |
| 4741319 | Ignition system for internal combustion engines | Ko Narita, Toshihito Nonaka | 1988-05-03 |
| 4572151 | Ignition system for internal combustion engines | — | 1986-02-25 |
| 4475520 | Contactless erroneous ignition prevention type ignition system for internal combustion engine | Tomoatsu Makino | 1984-10-09 |