Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10474253 | Electronic pen including a pressing member having an extension that extends along an outer wall of a writing-pressure detector | Ryoji Kamiyama, Mamoru Ogata | 2019-11-12 |
| 9898105 | Position indicator | Mamoru Ogata | 2018-02-20 |
| 9665188 | Position indicator | Mamoru Ogata | 2017-05-30 |
| 8777421 | Projection optical system | Atsushi Takaura, Kazuhiro Fujita, Issei Abe, Akihiro Yamakage, Yoshitsugu Kohno | 2014-07-15 |
| 8641208 | Refractive optics and projection display apparatus | Ryuhei Amano, Takashi Ikeda, Kazuhisa Takahashi, Yoshitsugu Kohno | 2014-02-04 |
| 8529070 | Projection optical apparatus | Atsushi Takaura, Kazuhiro Fujita, Issei Abe, Akihiro Yamakage, Yoshitsugu Kohno | 2013-09-10 |
| 8419191 | Projection optical system, projector and image reading device | Yoshitsugu Kono | 2013-04-16 |
| 8087789 | Projection optical system and projection display device | Ryuhei Amano, Takashi Ikeda, Shinichi Okuno, Yoshitsugu Kohno | 2012-01-03 |
| 7077546 | Illumination apparatus and liquid crystal projector using the illumination apparatus | Satoshi Yamauchi, Kazuhiro Fujita, Tadashi Honda | 2006-07-18 |
| 6866404 | Illumination apparatus and a liquid crystal projector using the illumination apparatus | Satoshi Yamauchi, Kazuhiro Fujita, Tadashi Honda | 2005-03-15 |