Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10430699 | Image processing apparatus, image processing method, and computer-readable recording medium | Hiroyuki Igawa | 2019-10-01 |
| 9787873 | Halftone dot screen generation with conditional arrangement of growth centers to form dot blocks and bridges connecting adjacent dot blocks | Hiroyuki Igawa | 2017-10-10 |
| 9706080 | Image processing apparatus and image processing method | Hiroyuki Igawa | 2017-07-11 |
| 9503611 | Image forming apparatus, and method and device for creating dither patterns | Hiroyuki Igawa | 2016-11-22 |
| 8941901 | Electrophotographic image output device | Hiroyuki Igawa | 2015-01-27 |
| 7551866 | Image forming method and apparatus with improved conversion capability of amount of toner adhesion | Naoto Watanabe, Shin Hasegawa, Shinji Kato, Hitoshi Ishibashi, Kohta Fujimori +7 more | 2009-06-23 |
| 6434356 | Recording apparatus responsive to changing electrical resistance of transfer media | Hiroyasu Ishijima, Kunihiko Sato, Hisashi Hanzawa | 2002-08-13 |
| 6175710 | Electrophotographic recording apparatus using developing device with one-component type developer and having combination of charge injection effect and conductive contact type charger | Masae Ikeda, Kazunori Hirose, Hiroshi Nou, Masahiro Wanou, Teturou Nakashima +2 more | 2001-01-16 |
| 5867758 | Developer thickness-controlling blade and production process thereof as well as electrographic imaging device | Sadaaki Yoshida, Tsuneo Mizuno | 1999-02-02 |
| 5848343 | Electrophotographic image-forming apparatus with uniform toner usage control | Takefumi Takahashi, Shizuo Takano, Yoshio Yamaguchi, Hiroshi Kera, Akira Nagahara +2 more | 1998-12-08 |
| 5489974 | Image formation apparatus, developing device incorporated therein and conductive rubber roller used therein | Kazumi Kawabata, Kazunori Hirose, Sadaaki Yoshida, Takeshi Tanimoto | 1996-02-06 |
| 5412458 | Developing apparatus having leaf spring member for regulating mono-component developer layer | Masae Ikeda, Kazunori Hirose, Yukio Nishio | 1995-05-02 |
| 5367367 | Toner supplying member in a developing device used in an image forming apparatus | Masae Ikeda, Kazunori Hirose | 1994-11-22 |
| 5331383 | Conductive roller transfer device with improved transfer efficiency and pollution control | Hiroshi Nou, Masahiro Wanou, Masashi Ogasawara, Masae Ikeda, Nobuo Suematsu +2 more | 1994-07-19 |
| 5232500 | One-component developing apparatus having a developer layer thickness regulating member with an edge machined along a direction parallel to the surface of a developer holder member | Kazunori Hirose, Masae Ikeda, Teturou Nakashima, Yukio Nishio | 1993-08-03 |
| 4979467 | Thin film formation apparatus | Shin Araki | 1990-12-25 |
| 4777103 | Electrophotographic multi-layered photosensitive member having a top protective layer of hydrogenated amorphous silicon carbide and method for fabricating the same | Hiroshi No, Shin Araki, Kohei Kiyota | 1988-10-11 |