Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886425 | Capacity control device of scroll-type fluid compressor | Tsutomu Itahana, Tamio Sugimoto | 1989-12-12 |
| 4879493 | Low-pressure discharge lamp | Hiromistu Mastuno, Seiichi Murayama, Yoshio Watanabe | 1989-11-07 |
| 4803401 | Compact fluorescent lamp | Hiromitsu Matsuno, Seiichi Murayama | 1989-02-07 |