Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10591696 | Projection lens unit of projector and projector | — | 2020-03-17 |
| 10401720 | Projection lens unit of projector and projector capable of suppressing image deterioration | — | 2019-09-03 |
| 6695775 | Lens assembly for endoscopic lens system | Joji Watanabe, Kazuhiro Sakamoto, Nobuyuki MIURA, Shuichi Yamataka, Tadasu Kobayashi | 2004-02-24 |
| 6346075 | Air and water supply valve structure in endoscope | Kaoru Arai, Mitsuo Kondo | 2002-02-12 |
| 6221561 | Diffusion plate and method for manufacturing master die thereof | Toshiharu Takahashi, Makoto Iki, Moriyasu Shirayanagi, Koichi Maruyama, Teruaki Hiyamuta +1 more | 2001-04-24 |
| 5965327 | Method for manufacturing a master die for a diffusion plate and diffusion manufactured by said method | Toshiharu Takahashi, Makoto Iki, Moriyasu Shirayanagi, Koichi Maruyama, Teruaki Hiyamuta +1 more | 1999-10-12 |
| 5733710 | Method for manufacturing a master die for a diffusion plate and diffusion plate manufactured by said method | Toshiharu Takahashi, Makoto Iki, Moriyasu Shirayanagi, Koichi Maruyama, Teruaki Hiyamuta +1 more | 1998-03-31 |