Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10942294 | Projection lens | Yoshihiro Nakano, Koji Takahara | 2021-03-09 |
| 10145988 | Projection lens and projector with laser beam light source | Yasumasa Sawai, Koji Takahara | 2018-12-04 |
| 9866806 | Prism unit and projector | Yasumasa Sawai, Koji Takahara, Masahiro Terada | 2018-01-09 |
| 7792007 | Optical device for monitor and optical pickup apparatus | Takuji Hatano, Hiroshi Hirayama, Masaru Okumura, Iwao Usui | 2010-09-07 |
| 7372798 | Optical element and optical pickup device | Tomokazu Taguchi, Katsuya Fukatani | 2008-05-13 |
| 6853760 | Optical functional device and optical integrated device | Koujirou Sekine, Mitsuru Yokoyama, Kyu Takada, Takuji Hatano, Shinji Maruyama +1 more | 2005-02-08 |
| 6807330 | Optical switch using an optical waveguide | Naoki Nishida, Takuji Hatano, Koji Takahara, Shinji Maruyama, Koujirou Sekine | 2004-10-19 |
| 6654535 | Polyimide optical waveguide | Naoki Nishida, Takuji Hatano | 2003-11-25 |
| 6466708 | Optical module and manufacturing method thereof | Mitsuru Yokoyama, Takuji Hatano, Kyu Takada, Koujirou Sekine | 2002-10-15 |
| 6130378 | Solar battery | Takuji Hatano | 2000-10-10 |