Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5188085 | Device for measuring concentration/flow rate of a mixture drawn into an internal combustion engine and air-fuel ratio control system of the engine incorporating the device | Masayuki Habaguchi, Fumio Hosoda, Sachito Fujimoto, Masakazu Kitamoto, Hideo Moriwaki +1 more | 1993-02-23 |
| 5011590 | Temperature control device for oxygen concentration sensor | Toshiyuki Mieno | 1991-04-30 |
| 4963246 | Oxygen concentration-sensing device | Toshiyuki Mieno, Yasuhiro Toyoda, Haruo Horiuchi | 1990-10-16 |
| 4961690 | Variable displacement type compressor | Yoshirou Simoyama, Nobuyuki Tanaka, Tetsuya Miyake | 1990-10-09 |
| 4922429 | Method for controlling an air/fuel ratio of an internal combustion engine | Yasushi Okada, Toshiyuki Mieno, Nobuyuki Oono | 1990-05-01 |
| 4915813 | Oxygen concentration detecting device | Toshiyuki Mieno, Yasuhiro Toyoda, Akira Kato, Haruo Horiuchi, Toru Yano | 1990-04-10 |
| 4905652 | Device for measuring a component of a gaseous mixture | Yasushi Okada, Toshiyuki Mieno, Nobuyuki Ohno | 1990-03-06 |
| 4882695 | Control system for ignition timing and boost pressure in internal combustion engine | Toshiyuki Mieno, Akira Nagao | 1989-11-21 |
| 4877511 | Oxygen concentration-sensing device | Toshiyuki Mieno | 1989-10-31 |
| 4873642 | Method for controlling an oxygen concentration sensor for use in an air/fuel ratio control system of an internal combustion engine | Toshiyuki Mieno, Yasushi Okada, Nobuyuki Oono | 1989-10-10 |
| 4860712 | Method of controlling an oxygen concentration sensor | Toshiyuki Mieno | 1989-08-29 |
| 4856480 | Apparatus for controlling ignition timing in internal combustion | Toshiyuki Mieno, Akira Tanaka, Akira Nagao, Yukihiko Suzaki | 1989-08-15 |
| 4841935 | Variable air induction control system for internal combustion engine | Hideji Yamada, Akira Nagao, Yukihiko Suzaki, Masao Jogen, Akira Tanaka | 1989-06-27 |
| 4819602 | System of abnormality detection for oxygen concentration sensor | Toshiyuki Mieno, Yasushi Okada, Nobuyuki Oono | 1989-04-11 |
| 4796587 | Air/fuel ratio control system for internal combustion engine | Yasushi Okada | 1989-01-10 |
| 4796586 | Method of and apparatus for controlling ignition timing in internal combustion engine | Akira Tanaka, Akira Nagao, Yukihiko Suzaki, Hideji Yamada, Toshiyuki Mieno | 1989-01-10 |
| 4790281 | Method of and apparatus for controlling ignition timing in internal combustion engine | Toshiyuki Mieno, Akira Nagao, Yukihiko Suzaki, Akira Tanaka | 1988-12-13 |
| 4788958 | Method of air/fuel ratio control for internal combustion engine | Yasushi Okada, Toshiyuki Mieno, Nobuyuki Oono | 1988-12-06 |
| 4788822 | Apparatus for controlling boost pressure in turbocharged internal combustion engines | Toshiyuki Mieno, Akira Tanaka, Akira Nagao | 1988-12-06 |
| 4787966 | Oxygen concentration sensor for an internal combustion engine | Yasushi Okada, Toshiyuki Mieno, Nobuyuki Cono | 1988-11-29 |
| 4777922 | Method of abnormality detection of oxygen concentration sensor | Toshiyuki Mieno, Yasushi Okada, Nobuyuki Oono | 1988-10-18 |
| 4769124 | Oxygen concentration detection device having a pair of oxygen pump units with a simplified construction | Yasushi Okada | 1988-09-06 |
| 4766870 | Method of air/fuel ratio control for internal combustion engine | Yasushi Okada, Toshiyuki Mieno, Nobuyuki Oono | 1988-08-30 |
| 4763628 | Method of compensating output from oxygen concentration sensor of internal combustion engine | Toshiyuki Mieno, Yasushi Okada, Nobuyuki Oono | 1988-08-16 |
| 4760822 | Method for controlling the air/fuel ratio of an internal combustion engine with a fuel cut operation | Toshiyuki Mieno, Yasushi Okada, Nobuyuki Oono | 1988-08-02 |