Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9874330 | Light projection device and head lamp for vehicle | Mikio Shimizu, Masashi Okamoto | 2018-01-23 |
| 8882275 | Light source device | Kiyoyuki Kabuki, Yoshihiro Horikawa, Yoshio Okazaki | 2014-11-11 |
| 8668339 | Light source device | Kiyoyuki Kabuki, Yoshihiro Horikawa, Yoshio Okazaki | 2014-03-11 |
| 8410697 | Light source device | Kazuhiro Goto, Shoichi Terada, Takahiro Toma | 2013-04-02 |
| 7845805 | Discharge lamp lighting apparatus and projector | Masashi Okamoto, Takanori Samejima, Yoshihiro Horikawa | 2010-12-07 |
| 6597115 | Light source device | Kazuhiro Goto | 2003-07-22 |
| 6462471 | High pressure mercury lamp provided with a sealing body made of a functional gradient material | Masanobu Komiya, Yukihiro Morimoto | 2002-10-08 |
| 6271628 | High pressure lamp with specific amount of mercury, halogen and wall loading | Hiroto Sato, Takashi Ito, Yoshihiro Horikawa | 2001-08-07 |
| 6060830 | High pressure mercury lamp | Hiroto Sato, Takashi Ito, Yoshihiro Horikawa | 2000-05-09 |
| 5986402 | Metal halide lamp | Mitsuo Narita, Yoshihiro Horikawa, Takashi Ito, Tatsushi Igarashi | 1999-11-16 |
| 5903088 | Short arc lamp having a thermally conductive ring | Kenzo Kai, Masanori Takahashi, Hideo Tanaka | 1999-05-11 |
| 5789863 | Short arc lamp with one-piece cathode support component | Masanori Takahashi, Hideo Tanaka | 1998-08-04 |
| 4985275 | Method for producing a fused silica envelope for discharge lamp | Tetsu Takemura, Hidetoshi Ichinose, Keisuke OHKUBO, Toshiyuki Okamoto | 1991-01-15 |