Issued Patents All Time
Showing 26–50 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9167122 | Image reading device and image forming device | — | 2015-10-20 |
| 9158119 | Enlargement optical system | Kiichiro Nishina, Makoto Hirakawa, Yasuyuki Shibayama, Takanobu Osaka | 2015-10-13 |
| 9069238 | Image displaying apparatus | Kiichiro Nishina, Makoto Hirakawa, Yasuyuki Shibayama, Takanobu Osaka | 2015-06-30 |
| 9046674 | Magnification optical system | Kiichiro Nishina, Yasuyuki Shibayama, Takanobu Osaka, Makoto Hirakawa | 2015-06-02 |
| 9039196 | Image displaying apparatus having plane mirror at conjugate to image displaying element | Makoto Hirakawa, Takanobu Osaka, Yasuyuki Shibayama, Kiichiro Nishina | 2015-05-26 |
| 8950874 | Projection optical system and image display apparatus | — | 2015-02-10 |
| 8929412 | Optical scanning device and image forming apparatus | Daisuke Ichii | 2015-01-06 |
| 8922883 | Magnification optical system | Kiichiro Nishina, Yasuyuki Shibayama, Takanobu Osaka, Makoto Hirakawa | 2014-12-30 |
| 8901473 | Projection optical system having an aperture to limit quantity of light to a refractive optical system, and image display device using the same | — | 2014-12-02 |
| 8894219 | Image projector having an optical projection system with independently focusing lens | — | 2014-11-25 |
| 8867108 | Image reading device and image forming device | — | 2014-10-21 |
| 8837027 | Optical scanning device and image forming apparatus | — | 2014-09-16 |
| 8746897 | Image projector having an optical projection system with independently focusing lens | — | 2014-06-10 |
| 8717671 | Projection optical system and image projection device | — | 2014-05-06 |
| 8699110 | Optical scanning device and image forming apparatus | — | 2014-04-15 |
| 8670472 | Optical scanning device and image forming apparatus | Daisuke Ichii | 2014-03-11 |
| 8614413 | Image reading apparatus to illuminate light on an original document with an optical member having four planes positioned such that the light incident side is smaller in size than the light exit side | — | 2013-12-24 |
| 8564635 | Optical scanner and image forming apparatus | Nobuyuki Arai | 2013-10-22 |
| 8497894 | Optical scanner and image forming apparatus | Nobuyuki Arai | 2013-07-30 |
| 8441512 | Optical scanner and image forming apparatus addressing uneven birefringence distribution of a scanning lens | Daisuke Ichii, Nobuyuki Arai | 2013-05-14 |
| 8228583 | Optical scanning device and image forming apparatus | Taku Amada | 2012-07-24 |
| 8081355 | Illumination unit, image read apparatus, image formation apparatus | Kiichiro Nishina, Yasuo Sakurai, Masahiro Itoh, Yoshifumi Sudoh | 2011-12-20 |
| 8022347 | Optical scanning device, image forming apparatus, and optical scanning method having a plurality of light intensity control devices with a switching unit | Kenichi Ono, Tomoaki Suga, Naoto Watanabe, Nobuyuki Arai | 2011-09-20 |
| 7957039 | Original-document illumination apparatus, image reading apparatus, color-original-document reading apparatus and image forming apparatus | — | 2011-06-07 |
| 7920304 | Image reading device and image forming apparatus | Yasuo Sakurai, Kiichiro Nishina, Nobuaki Ono, Masahiro Itoh | 2011-04-05 |