Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7939744 | Thermoelectric element | Kazuhiro Nishizono, Koichi Tanaka, Kenichi Tajima | 2011-05-10 |
| 7518160 | Wavelength converter, lighting system, and lighting system assembly | Fujito Nakakawaji, Masanobu Ishida, Tsutae Iryou | 2009-04-14 |
| 6359150 | Photochromic compound and optical function device using the same | Kazushi Kamiyama | 2002-03-19 |