Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10329973 | Engine oil deterioration diagnosis device | Kunihiro Nishi, Hisashi Okazawa, Kenko Ujihara | 2019-06-25 |
| 10208638 | Apparatus and method for diagnosing lubricant degradation in internal combustion engine | Kuniaki Wada, Kouichi Miyamoto, Kenya Ishii, Tomonobu MIZUBA, Takayoshi FUJITA | 2019-02-19 |
| 7957519 | Private branch exchange system and method for control thereof | — | 2011-06-07 |
| 7463728 | Private branch exchange | — | 2008-12-09 |
| 5181485 | Valve driving mechanism for double overhead camshaft engine | Ichiro Hirose, Noriyuki Iwata, Masahiro Choshi | 1993-01-26 |