Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879139 | Method of making a thin film electroluminescence element | Kinya Atsumi, Masumi Arai, Tadashi Hattori | 1989-11-07 |
| 4616502 | Knocking detection system for internal combustion engine | Tadashi Hattori, Tadashi Ozaki, Kazuhiko Miura | 1986-10-14 |
| 4567755 | Ignition/misfire detector for an internal combustion engine | Tadashi Hattori, Minoru Yamamoto, Tadashi Ozaki | 1986-02-04 |
| 4567751 | Knocking detection device in diesel engine | Tadashi Hattori, Minoru Yamamoto, Tadashi Ozaki | 1986-02-04 |
| 4537065 | Device for detection of abnormality in pressure detector for internal combustion engine | Tadashi Hattori, Minoru Yamamoto, Tadashi Ozaki | 1985-08-27 |
| 4476709 | Knock detecting apparatus for internal combusion engines | Tadashi Hattori, Tadashi Ozaki, Kazuhiko Miura | 1984-10-16 |
| 4466405 | Feedback type ignition timing control system for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi, Kenji Goto, Daisaku Sawada | 1984-08-21 |
| 4465047 | Knock detecting apparatus for combustion engines | Hiroaki Yamaguchi, Tadashi Hattori | 1984-08-14 |
| 4462247 | Knock detecting apparatus for internal combustion engines | Tadashi Hattori, Masanori Hanaoka, Yukihide Hashiguchi, Hiroaki Yamaguchi | 1984-07-31 |
| 4452069 | Method of and apparatus for sensing knocking in internal combustion engine | Tadashi Hattori, Masanori Hanaoka, Yukihide Hashiguchi, Hiroaki Yamaguchi | 1984-06-05 |
| 4440014 | Knocking detection device | Tadashi Hattori, Tadashi Ozaki, Kazuhiko Miura, Masanori Hanaoka, Yukihide Hashiguchi | 1984-04-03 |
| 4424705 | Engine knock sensing apparatus | Tadashi Hattori, Masanori Hanaoka, Yukihide Hashiguchi, Hiroaki Yamaguchi | 1984-01-10 |
| 4414840 | Knock detecting apparatus for internal combustion engines | Hiroaki Yamaguchi, Tadashi Hattori | 1983-11-15 |
| 4409816 | Knock detecting apparatus for an internal combustion engine | Hiroaki Yamaguchi, Tadashi Hattori | 1983-10-18 |
| 4379403 | Knock detecting apparatus for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi | 1983-04-12 |
| 4366702 | Knock detecting apparatus for internal combustion engines | Hiroaki Yamaguchi, Tadashi Hattori | 1983-01-04 |
| 4357919 | Ignition timing control apparatus for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi | 1982-11-09 |
| 4357825 | Knock detecting apparatus for internal combustion engines | Hiroaki Yamaguchi, Tadashi Hattori | 1982-11-09 |
| 4345558 | Knock detecting apparatus for an internal combustion engine | Hiroaki Yamaguchi, Tadashi Hattori | 1982-08-24 |
| 4341189 | Knock detecting apparatus for combustion engines | Hiroaki Yamaguchi, Tadashi Hattori | 1982-07-27 |
| 4337643 | Knock detecting apparatus for internal combustion engine | Hiroaki Yamaguchi, Tadashi Hattori | 1982-07-06 |
| 4336707 | Knock detecting apparatus for internal combustion engines | Hiroaki Yamaguchi, Tadashi Hattori | 1982-06-29 |
| 4328779 | Feedback type ignition timing control system for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi, Kenji Goto, Daisaku Sawada | 1982-05-11 |
| 4319480 | Knock detector device for internal combustion engines | Hiroaki Yamaguchi, Tadashi Hattori | 1982-03-16 |
| 4316440 | Knock detecting apparatus for internal combustion engine | Hiroaki Yamaguchi, Tadashi Hattori | 1982-02-23 |