Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589197 | Fluid passage change-over apparatus for medical treatment | Hiroyuki Doi, Zyunya Fujii, Seishin Tanaka | 2003-07-08 |
| 6293921 | Automatic exchanger for peritoneal dialysis | Seishin Tanaka, Junya Fujii | 2001-09-25 |
| 6035835 | Valve operation verification system for verifying valve operation of valve disposed in hot gas flow passage | Shingo Shigihama, Tetsushi Hosokai, Tamotsu Kamakura, Katsuhiko Sakamoto, Futoshi Nishioka +1 more | 2000-03-14 |
| 5979160 | System for detecting deterioration of exhaust gas purifying catalyst for automobile engine | Seiji Yashiki, Kazufumi Arino, Masanobu Kotoku | 1999-11-09 |
| 5610321 | Sensor failure detection system for air-to-fuel ratio control system | — | 1997-03-11 |
| 5414995 | Failure detection system for air-fuel ratio control system | Shoji Tokuda, Takao Matsunaga, Koichi Terada, Yoshimi Yamamoto | 1995-05-16 |
| 5337555 | Failure detection system for air-fuel ratio control system | Shoji Tokuda, Takao Matsunaga, Koichi Terada, Yoshimi Yamamoto | 1994-08-16 |