Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4939347 | Energization control apparatus for glow plug | Koji Hatanaka, Minoru Masaki, Takashi Aota | 1990-07-03 |
| 4931619 | Glow plug for diesel engines | Yasunobu Ogata, Koichiro Kurihara, Kouji Hatanaka | 1990-06-05 |
| 4929813 | Glow plug for diesel engine | Koji Hatanaka, Kenji Maruta, Seiji Okazaki | 1990-05-29 |
| 4914751 | Bipolar diesel engine glow plug having a U-shaped ceramic heater | Koji Hatanaka, Kenzi Maruta, Hirohisa Suwabe | 1990-04-03 |
| 4810853 | Glow plug for diesel engines | Kenji Maruta, Hiroshi Suwabe, Sachio Ogasawara, Koji Hatanaka | 1989-03-07 |
| 4806734 | Diesel engine glow plug | Koji Hatanaka | 1989-02-21 |
| 4742209 | Glow plug for diesel engine | Sokichi Minegishi, Koji Hatanaka, Kenzi Maruta, Hirohisa Suwabe | 1988-05-03 |
| 4682008 | Self-temperature control type glow plug | — | 1987-07-21 |
| 4661048 | Electromagnetic pump with simplified construction | Takatoshi Arai | 1987-04-28 |
| 4643653 | Electromagnetic pump | Takatoshi Arai, Hideo Iwabuchi, Michio Idei | 1987-02-17 |
| 4306842 | Electromagnetic pumps | — | 1981-12-22 |
| 4299544 | Electromagnetic pumps | — | 1981-11-10 |