Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304377 | Fluorescent lamp | Toshiharu Fujita, Hiroyoshi Yamazaki, Noriyuki Maeda, Kazutaka Shimizu, Yoshihiro Domon +5 more | 1989-10-31 |
| 4840593 | Low pressure mercury vapor discharge lamp and preparation thereof | Takao Takeda, Hitoshi Yamazaki, Yoshiteru Taniguchi, Hiroshi Ito, Minoru Uchida +1 more | 1989-06-20 |