Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10811562 | Light emitting diode | Takahiro Arakida, Takahiko Kawasaki, Katsutoshi Itou, Makoto Nakashima | 2020-10-20 |
| 9455373 | Light emitting element, method of manufacturing the same, and light emitting device | Mikihiro Yokozeki, Takahiro Koyama, Hironobu Narui, Michinori Shiomi, Takahiko Kawasaki +1 more | 2016-09-27 |
| 8987763 | Light emitting device and method of manufacturing the same, and light emitting unit | Takahiko Kawasaki, Michinori Shiomi, Katsutoshi Itou, Makoto Nakashima | 2015-03-24 |
| 8587015 | Light-emitting element | — | 2013-11-19 |
| 7675070 | LED having a reflector layer of improved contact ohmicity | Koji Otsuka | 2010-03-09 |
| 7498609 | Light-emitting semiconductor device of improved efficiency | Hitoshi Murofushi, Shiro Takeda, Yoshihiko Uchida | 2009-03-03 |
| 7456435 | Light-emitting semiconductor device | Koji Otsuka, Masahiro Sato | 2008-11-25 |
| 7405431 | Light-emitting semiconductor device having an overvoltage protector | Tetsuji Matsuo | 2008-07-29 |
| 7199401 | Light-emitting semiconductor device | Mikio Tazima, Masahiro Sato, Tetsuji Matsuo | 2007-04-03 |