Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875837 | Two-flow-passage type exhaust gas driven turbo-charger | Kyoichi Uchiyama, Satoshi Suzuki | 1989-10-24 |
| 4875170 | Method and apparatus for estimating life expectancy of mechanical structures | Shigeo Sakurai, Sadao Umezawa, Hiroshi Miyata, Hajime Toriya, Kuniyoshi Tsubouchi +1 more | 1989-10-17 |