Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D396301 | Skylight having a light collecting system | Norioki Fujimoto, Kazuo Takahashi, Wazoh Yamada, Masashi Takazawa | 1998-07-21 |
| 4919120 | Radiant-type heater | Tadao Horikoshi, Hisao Naganuma, Minoru Sugimoto | 1990-04-24 |