Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10941299 | Heat insulation coating for internal combustion engines and process for forming the same | Yoshiaki Kajikawa | 2021-03-09 |
| 10801403 | Internal combustion engine | Naoki Nishikawa, Hideo Yamashita, Keisuke Tanaka, Toshio Horie, Yoshifumi Wakisaka +1 more | 2020-10-13 |
| 10654096 | Manufacturing method for cylinder head | Hiroki IGUMA, Hideo Yamashita, Kazuaki Nishio | 2020-05-19 |
| 10252323 | Manufacturing method for cylinder head | Hiroki IGUMA, Hideo Yamashita, Kazuaki Nishio | 2019-04-09 |
| 10066546 | Internal combustion engine | Hideo Yamashita, Hiroki IGUMA | 2018-09-04 |
| 9957916 | Internal combustion engine | Manabu Tateno, Hideyuki Nishida, Hideo Yamashita, Hiroki IGUMA, Akira Yamashita +1 more | 2018-05-01 |
| 9863312 | Internal combustion engine and manufacturing method therefor | Naoki Nishikawa, Hiroshi Makino, Reona Takagishi, Yoshifumi Wakisaka, Fumio Shimizu +1 more | 2018-01-09 |
| 9359946 | Internal combustion engine and method for manufacturing the same | Naoki Nishikawa, Takumi Hijii, Ryouta Yatsuduka, Fumio Shimizu, Yoshifumi Wakisaka +1 more | 2016-06-07 |
| 8893693 | Internal combustion engine and method of producing same | Takumi Hijii, Naoki Nishikawa, Koichi Nakata, Yoshifumi Wakisaka, Hidemasa Kosaka +1 more | 2014-11-25 |
| 8593620 | Device for measuring properties of scatterers , for color measuring for scattered light of gemstones, for measuring brightness of gemstones, and for measuring luminescence distribution | Hirofumi Ninomiya | 2013-11-26 |
| 5701735 | Method for regenerating a particulate collection filter and an exhaust emission control system with a particulate collection filter | — | 1997-12-30 |
| 5697211 | Exhaust gas purification device | — | 1997-12-16 |
| 5626115 | Compression-ignition type engine | — | 1997-05-06 |
| 5467757 | Compression-ignition type engine and combustion method of same | Hiromichi Yanagihara, Yasuo Sato | 1995-11-21 |
| 4584892 | Manual transmission synchronizer | Kazuyoshi Hiraiwa | 1986-04-29 |
| 4531424 | Gear shift mechanism for transmission | Kazuyoshi Hiraiwa | 1985-07-30 |
| 4495832 | Gear operating mechanism of an automotive manual transmission | Kazuyoshi Hiraiwa | 1985-01-29 |