Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11505813 | Cellooligosaccharide production method | Takeshi SERIZAWA, Masahito Nishiura | 2022-11-22 |
| 5849165 | Oxygen sensor for preventing silicon poisoning | Takao Kojima, Hiroyuki Ishiguro, Masaru Yamano, Kazuo Taguchi, Masahiko Yamada +1 more | 1998-12-15 |
| 5443711 | Oxygen-sensor element | Takao Kojima, Hiroyuki Ishiguro, Masaru Yamano, Noriaki Kondo, Masahiko Yamada | 1995-08-22 |
| 5326597 | Method of producing oxygen sensor for air-fuel ratio control having a protective layer including oxygen storage material | Masaru Yamano, Kazuo Taguchi, Takao Kojima, Hiroyuki Ishiguro, Masahiko Yamada | 1994-07-05 |
| 5160598 | Oxygen sensor for air-fuel ratio control having a protective layer including an oxygen storage material | Masaru Yamano, Kazuo Taguchi, Takao Kojima, Hiroyuki Ishiguro, Masahiko Yamada | 1992-11-03 |
| 5020499 | Apparatus for detecting abnormality of oxygen sensor and controlling air/fuel ratio | Takao Kojima, Masaru Yamano | 1991-06-04 |
| 4884066 | Deterioration detector system for catalyst in use for emission gas purifier | Shigeru Miyata | 1989-11-28 |