Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890017 | CMOS-BiCMOS gate circuit | Ikuro Masuda, Kazuo Kato, Yoji Nishio, Shigeo Kuboki, Masahiro Iwamura | 1989-12-26 |
| 4882030 | Air-fuel ratio detection system for engine exhaust gas | Seikoo Suzuki, Masayuki Miki, Minoru Osuga, Yoshishige Oyama | 1989-11-21 |
| 4837698 | Method of controlling air-fuel ratio | Matsuo Amano, Masami Shida, Masahide Sakamoto, Takeshi Hirayama | 1989-06-06 |
| 4829201 | Gate circuit of combined field-effect and bipolar transistors | Ikuro Masuda, Kazuo Kato, Yoji Nishio, Shigeo Kuboki, Masahiro Iwamura | 1989-05-09 |