Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11852783 | Optical film, optical laminate, functional glass, and head-up display | Chihiro Takahashi | 2023-12-26 |
| 10488558 | Photosensitive resin composition and antireflection film | Ryota Nakashima | 2019-11-26 |
| 8305407 | Exposure device and image-forming apparatus | — | 2012-11-06 |
| 8059147 | Exposure apparatus, image forming apparatus and heating method | Youji Houki, Yukihiro Matsushita | 2011-11-15 |
| 7679635 | Image forming apparatus, exposure apparatus and image forming method | Youji Houki, Yukihiro Matsushita | 2010-03-16 |
| 7583283 | Exposure apparatus, image forming apparatus and heat adjustment method | Yukihiro Matsushita, Youji Houki | 2009-09-01 |
| 7079170 | Method of correcting the light amount of a printhead | Yukihiro Matsushita | 2006-07-18 |
| 7002701 | Image formation apparatus and image exposure apparatus | Hirofumi Nakayasu, Youji Houki | 2006-02-21 |
| 6379482 | Manufacturing device and method of the exposure device | Hirofumi Nakayasu, Youji Houki, Tsutomu Nagatomi | 2002-04-30 |
| 6366304 | Thermal correction for image-forming exposure device and method of manufacturing the device | Hirofumi Nakayasu, Youji Houki | 2002-04-02 |
| 6340982 | Image forming apparatus and exposure device thereof | Youji Houki, Hirofumi Nakayasu, Tsutomu Nagatomi | 2002-01-22 |
| 6330011 | Electrophotography apparatus and exposure apparatus using particularly shaped light emitting elements | Youji Houki, Hirofumi Nakayasu | 2001-12-11 |
| 6292205 | Electrophotographic apparatus with quantity-of-light control | Hirofumi Nakayasu, Youji Houki, Kouichi Kobayashi | 2001-09-18 |
| 6118463 | Positional error correction for color image forming apparatus | Youji Houki, Kouichi Kobayashi, Hiroji Uchimura, Morihisa Kawahara, Tsutomu Nagatomi +7 more | 2000-09-12 |