Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879493 | Low-pressure discharge lamp | Hiromistu Mastuno, Tetsuo Ono, Yoshio Watanabe | 1989-11-07 |
| 4841556 | Plasma X-ray source | Yasuo Kato, Isao Ochiai, Yoshio Watanabe | 1989-06-20 |
| 4803401 | Compact fluorescent lamp | Hiromitsu Matsuno, Tetsuo Ono | 1989-02-07 |
| 4803406 | High-pressure discharge lamp operating circuit | Makoto Yasuda, Tsune Miyashita, Yoji Arai, Fuzio Yamada | 1989-02-07 |