Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5034655 | Circular fluorescent lamp | Seiichi Murayama, Hiromitsu Matsuno, Tetsuo Ono, Yasusuke Seki, Atsuo Koyama +1 more | 1991-07-23 |
| 4991074 | Lighting lamp | Yasuo Kobayashi, Yasuo Hirasawa, Katsumi Miyazaki, Takao Higashi, Masami Yanagisawa +1 more | 1991-02-05 |
| 4961024 | Circular fluorescent lamp with oval section of tube | Yasuo Hirasawa, Yukio Ohno | 1990-10-02 |
| 4954937 | Lighting lamp | Yasuo Kobayashi, Naoki Hagiwara, Taisuke Hirota, Yasuo Hirasawa, Katsumi Miyazaki +4 more | 1990-09-04 |
| 4363997 | Fluorescent lamp having reflective layer | — | 1982-12-14 |
| 4336479 | Fluorescent lamp having reflective layer and a method for fabricating the same | Taisuke Hirota, Hiroshi Ohno, Etsuo Urataki | 1982-06-22 |