Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810089 | Photoelastic effect measuring device | Takeo Murakoshi, Masaki Yoshii, Shigeo Tohyama, Sadao Minakawa | 1989-03-07 |
| 4802831 | Fluid machine with resin-coated scroll members | Kazutaka Suefuji, Yasuyuki Kanai, Shozo Nakamura, Tetsuya Arata, Katsuaki Kikuchi +4 more | 1989-02-07 |