Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10510522 | Mass spectrometry using plasma ion source | Naoki Sugiyama, Mineko Omori | 2019-12-17 |
| 10333281 | Spark plug | Masamichi Shibata | 2019-06-25 |
| 7779882 | Apparatus and method for manufacturing rubber sheet with reinforced cord | Sigemasa Takagi, Tosiaki Morisaki, Yasunori Ozeki | 2010-08-24 |
| 7182048 | Internal combustion engine cooling system | — | 2007-02-27 |
| 6679202 | Malfunction detecting apparatus for water temperature control valve | — | 2004-01-20 |
| 5528140 | Rotation angle sensor for internal combustion engine having rotatable detection means | Naoki Fuki, Toyohisa Harita | 1996-06-18 |
| 5277090 | Disc cutting apparatus | Rhoei Shintani, Masatada Sekine, Yoshio Ishizaka, Nobuyoshi Fukuda, Masahito Eda +3 more | 1994-01-11 |
| 4831658 | Binary signal producing apparatus for optical character recognition | Tetsuo Umeda, Shigenobu Kasuya | 1989-05-16 |
| 4592324 | Ignition control system for internal combustion engines | Eiji Takakuwa, Hiroo Utsumi | 1986-06-03 |
| 4499372 | Mail-article tracing apparatus | — | 1985-02-12 |
| 4445479 | Ignition timing control apparatus with knock sensor | Eiji Takakuwa, Izumi Kizitani | 1984-05-01 |