Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10923883 | Optical device, optical unit, display device, and prism fixing method | Tokiko Gotoh | 2021-02-16 |
| 10409192 | Optical scanner and image forming device incorporating same | Tomoya FUJII, Tadashi Nakamura, Nobuyuki Arai, Yoshinobu Sakaue, Daisuke Imaki | 2019-09-10 |
| 9864296 | Optical scanner and image forming device incorporating same | Tomoya FUJII, Tadashi Nakamura, Nobuyuki Arai, Yoshinobu Sakaue, Daisuke Imaki | 2018-01-09 |
| 9494793 | Light beam scanning device and image forming apparatus | Nobuyuki Arai, Makoto Hirakawa, Yoshinobu Sakaue, Tomoya FUJII | 2016-11-15 |
| 9366392 | Straight tube LED lamp using semiconductor light-emitting element and lighting device incorporating the same | — | 2016-06-14 |
| 8823764 | Optical writer and image forming apparatus including same | Tomoya FUJII, Yoshinobu Sakaue | 2014-09-02 |
| 8754919 | Optical writing unit and image forming apparatus including same | Yoshinobu Sakaue, Tomoya FUJII | 2014-06-17 |
| 8520046 | Image forming apparatus having plural optical scanning devices | Yoshinobu Sakaue | 2013-08-27 |
| 7986334 | Image forming apparatus, optical writing device, and optical writing method | Kazunori Bannai, Hideto Higaki, Daisuke Imaki, Yoshinobu Sakaue | 2011-07-26 |
| 7916161 | Image forming apparatus | Kazunori Bannai, Iwao Matsumae, Yoshinobu Sakaue | 2011-03-29 |
| 7746371 | Optical writing device and image forming apparatus | Yoshinobu Sakaue, Hideto Higaki | 2010-06-29 |
| 7705872 | Optical writing device and image forming apparatus | Hideto Higaki, Kazunori Bannai, Yoshinobu Sakaue | 2010-04-27 |
| 7697184 | Optical scanning device and image forming apparatus | Yoshinobu Sakaue, Kazunori Bannai, Iwao Matsumae | 2010-04-13 |
| 7436425 | Optical writing apparatus and image forming apparatus | Kozo Yamazaki, Iwao Matsumae, Kazunori Bannai, Kohta Takenaka, Yoshinobu Sakaue | 2008-10-14 |
| 7342694 | Image reading device | — | 2008-03-11 |
| 6389251 | Electrophotographic image forming apparatus including discharging device | — | 2002-05-14 |
| 6118951 | Image forming apparatus and toner replenishing device therefor | Shunji Kato, Masasumi Yahata, Yuji Kitajima | 2000-09-12 |
| 5909610 | Toner container enclosed in a protective armoring member | Shigeru Yoshiki | 1999-06-01 |
| 5828935 | Image forming apparatus, toner supply unit, and toner bottle attached thereto | Kenzo Tatsumi, Shigeru Yoshiki | 1998-10-27 |
| 5765079 | Toner bottle | Shigeru Yoshiki, Kenzo Tatsumi, Hideo Yoshizawa | 1998-06-09 |
| 5557382 | Toner replenishing device for a developing device | Kenzou Tatsumi, Takeshi Saito, Akio Kutsuwada, Shigeru Yoshiki | 1996-09-17 |