Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7781519 | Solubilizer and composition containing same | Rumi Ueda, Naoki Hayashi, Yutaka Kobayashi, Tomomi Ujiie | 2010-08-24 |
| 7067074 | Near-infrared-absorbing composition and optical material | Tsukasa Ikeda, Masuhiro Syouji, Katsuichi Machida | 2006-06-27 |
| 7053231 | Building material | Naoki Hayashi, Katsuichi Machida | 2006-05-30 |
| 7025908 | Optical filter and process for producing the same | Naoki Hayashi, Masuhiro Syouji, Tomoyoshi Koizumi, Katsuichi Machida | 2006-04-11 |
| 6410613 | Phosphate compound and preparation process thereof, phosphate copper compound and preparation process thereof, near infrared ray absorber, and near infrared ray-absorbing acrylic resin composition | Yasuhiro Ohnishi | 2002-06-25 |
| 6180224 | Method of absorbing rays outside a visible region | Masuhiro Shouji, Takeo Ogihara, Teruo Sakagami, Osamu Tanegashima | 2001-01-30 |
| 5820779 | Polymeric optical low-pass filter and device thereof | Masuhiro Shouji, Takeo Ogihara, Teruo Sakagami, Hiroshi Hasebe, Haruyoshi Takatu | 1998-10-13 |
| 5793544 | Production process of composite optical filter | Takeo Ogihara, Masuhiro Shouji, Teruo Sakagami | 1998-08-11 |
| 5759448 | Plastic optical material | Masuhiro Shouji, Takeo Ogihara, Teruo Sakagami | 1998-06-02 |
| 5691838 | Infrared-blocking optical fiber | Masuhiro Shouji, Takeo Ogihara, Teruo Sakagami | 1997-11-25 |
| 5672655 | Plastic optical material and production process thereof | Masuhiro Shouji, Takeo Ogihara, Teruo Sakagami | 1997-09-30 |
| 5611965 | Plastic optical filter | Masuhiro Shouji, Takeo Ogihara, Teruo Sakagami | 1997-03-18 |
| 5567778 | Process for producing an optical filter | Teruo Sakagami, Takeo Ogihara, Yasufumi Fujii | 1996-10-22 |
| 5466755 | Optical filter | Teruo Sakagami, Takeo Ogihara, Yasufumi Fujii | 1995-11-14 |