Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6766640 | Engine exhaust purification device | Yasuji Ishizuka, Hideaki Takahashi | 2004-07-27 |
| 6760681 | Rate detection method and rate detector | Tomohiko Takahashi, Tetsuya Iwasaki | 2004-07-06 |
| 6741924 | Apparatus and method for engine cylinder intake air quantity calculation | Tetsuya Iwasaki, Hatsuo Nagaishi | 2004-05-25 |
| 6718920 | Camshaft rotational phase detecting apparatus and cylinder intake air quantity calculating apparatus for engine | Masato Hoshino, Tetsuya Iwasaki | 2004-04-13 |
| 6494185 | Fuel injection control apparatus and method for variably operated engine valve equipped internal combustion | Tetsuya Iwasaki | 2002-12-17 |
| 6349592 | Intake air quantity calculating apparatus for an internal combustion engine with a variable valve timing control mechanism | Takahiko Hirasawa, Hatsuo Nagaishi | 2002-02-26 |
| 6328007 | Internal cylinder intake-air quantity calculating apparatus and method for variable valve open/closure timing controlled engine | Takahiko Hirasawa, Hatsuo Nagaishi | 2001-12-11 |
| 6125628 | Engine startup air-fuel ratio controller | Takehiko Itami, Hatsuo Nagaishi | 2000-10-03 |
| 6116227 | Engine air-fuel ratio controller | Hatsuo Nagaishi | 2000-09-12 |
| 5988144 | Engine air-fuel ratio controller | Takao Kawasaki, Masahiko Hashimoto | 1999-11-23 |
| 5884605 | Controller and control method for engine ignition timing | Hatsuo Nagaishi, Kazushige Yokota | 1999-03-23 |
| 5762043 | Engine fuel injection controller | Hatsuo Nagaishi | 1998-06-09 |
| 5690086 | Air/fuel ratio control apparatus | Akihiro Kawano, Hatsuo Nagaishi | 1997-11-25 |
| 5560339 | Fuel injection control system for internal combustion engine | Hatsuo Nagaishi | 1996-10-01 |
| 4628001 | Pitch-based carbon or graphite fiber and process for preparation thereof | Hideharu Sasaki, Toru Sawaki | 1986-12-09 |
| 4263193 | Aqueous emulsion of multi-component synethetic resin and process for production thereof | Seiichiro Sakimoto | 1981-04-21 |