Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8006658 | Variable valve actuation apparatus of internal combustion engine | Makoto Nakamura, Mikihiro Kajiura, Yoshihiko Yamada, Seiji Tsuruta, Seinosuke Hara | 2011-08-30 |
| 6257201 | Exhaust brake | Mikihiro Kajiura, Noboru Egashira | 2001-07-10 |
| 6032643 | Decompression engine brake device of automotive internal combustion engine | Tamotsu Todo, Seiji Tsuruta | 2000-03-07 |
| 5918367 | Method of producing valve lifter | Tamotsu Todo, Yasuo Fukuda, Seiji Tsuruta, Kenji Suzuki, Shin Koizumi | 1999-07-06 |
| 5749341 | Valve lifter for internal combustion engines | Tadashi Kikyohara, Seiji Tsuruta, Sadayuki Abo, Masaki Toriumi, Kenji Ariga | 1998-05-12 |
| 5743224 | Valve lifter surface and processing method thereof | Hirokazu Uehara, Akira Hidaka, Nobutaka Hayashi | 1998-04-28 |
| 5400749 | Valve lifter of valve mechanism for internal combustion engine | Shin Koizumi, Hirokazu Uehara | 1995-03-28 |