Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5461569 | Abnormality diagnostic system for internal combustion engines | Fumio Hara | 1995-10-24 |
| 5052361 | Method of detecting deterioration of an exhaust gas concentration sensor for an internal combustion engine | Hiroshi Ono, Takashi Kiyomiya | 1991-10-01 |
| 5003954 | Fail-safe device for temperature sensors | Tomofumi Itoh, Hisashi Igarashi | 1991-04-02 |
| 4979143 | Recovery from power-down mode | Osamu Takano, Hiroshi Kawakami | 1990-12-18 |
| 4964050 | Method of controlling electrical devices of internal combustion engines | Kikuo Tomozawa, Kazuya Kishi | 1990-10-16 |
| 4951632 | Exhaust gas component concentration sensing device and method of detecting failure thereof | Tomohiko Kawanabe, Hisashi Igarashi, Hiroshi Ohno | 1990-08-28 |
| 4953056 | Current detection apparatus for use in electromagnetic actuator drive circuit | Hideto Iijima | 1990-08-28 |
| 4892077 | Fuel injection control method for internal combustion engines | Kikuo Tomozawa, Kazuya Kishi | 1990-01-09 |
| 4862369 | Electronically-controlled fuel injection system | Yoshio Suzuki | 1989-08-29 |
| 4844038 | Abnormality detecting method for exhaust gas concentration sensor for internal combustion engines | Akihiro Yamato | 1989-07-04 |
| 4831536 | Method of processing controlled variables in engine control system | Kikuo Tomozawa | 1989-05-16 |
| 4775957 | Microcomputer with abnormality sensing function | Kikuo Tomozawa | 1988-10-04 |
| 4764729 | Method of detecting abnormality in electromagnetic valve current controller | Takashi Satoh | 1988-08-16 |
| 4656989 | System for driving solenoid valve for internal combustion engine | — | 1987-04-14 |
| 4644917 | Method and apparatus for controlling an internal combustion engine | Hideto Iijima | 1987-02-24 |
| 4628882 | Fuel supply control method for multicylinder internal combustion engines during occurrence of abnormality in engine rotational angle position sensing means | Hidetoshi Sakurai | 1986-12-16 |
| 4611565 | Backup system for electronic fuel injection control system | — | 1986-09-16 |