Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8489011 | Image forming apparatus and image forming system | Kazunari Hagiwara, Norio Takahashi, Rie Endo | 2013-07-16 |
| 8437678 | Image forming apparatus and image forming system | Kazunari Hagiwara, Norio Takahashi, Rie Endo | 2013-05-07 |
| 8019258 | Developing apparatus | Shinichi Nishida, Katsunori Yokoyama, Yasushi Shimizu, Kazunari Hagiwara, Rie Endo +1 more | 2011-09-13 |
| 8019260 | Image forming apparatus | Rie Endo, Shuji Moriya, Norio Takahashi | 2011-09-13 |
| 7962076 | Image forming apparatus | Rie Endo, Shuji Moriya, Norio Takahashi | 2011-06-14 |
| 7890032 | Developing apparatus having a scraping member | Rie Endo, Ryuji Yamamoto | 2011-02-15 |
| 7840168 | Developing apparatus | Shinichi Nishida, Katsunori Yokoyama, Yasushi Shimizu, Kazunari Hagiwara, Rie Endo +1 more | 2010-11-23 |
| 7773923 | Developing apparatus and image forming apparatus | Kazunari Hagiwara, Norio Takahashi, Rie Endo | 2010-08-10 |
| 7734205 | Image forming apparatus | Norio Takahashi, Shuji Moriya, Rie Endo | 2010-06-08 |
| 7668490 | Developing apparatus having developer supplying member in spaced apart relationship with developer carrying member | Rie Endo, Ryuji Yamamoto | 2010-02-23 |
| 7068956 | Image forming apparatus and control method for the image forming apparatus | Shinichi Tsukida, Masahiro Shibata | 2006-06-27 |
| 7020419 | Image formation apparatus, and control method for image formation apparatus | Satoshi Tsuruya, Shinichi Tsukida, Takehiko Suzuki, Seiichi Shinohara, Masahiro Shibata | 2006-03-28 |
| 6954595 | Image forming apparatus featuring a developer carrying member with a controlled operation time and related control method | Shinichi Tsukida, Masahiro Shibata | 2005-10-11 |
| 6915094 | Composition for accessing a memory in image formation apparatus and method for accessing a memory in image formation apparatus | Satoshi Tsuruya, Shinichi Tsukida, Takehiko Suzuki, Seiichi Shinohara, Masahiro Shibata | 2005-07-05 |
| 6751423 | Developing apparatus and image forming apparatus | Satoshi Tsuruya, Seiichi Shinohara, Masahiro Shibata | 2004-06-15 |
| 6714754 | Developing roller for electrophotography, developing apparatus, apparatus unit and image forming apparatus | Yukihiro Ozeki, Makoto Nonomura, Manami Sekiguchi | 2004-03-30 |
| 6647229 | Image forming apparatus with flexible charging member for use with spherical toner | Manami Haraguchi | 2003-11-11 |
| 6611669 | Image forming apparatus with superposed direct current and alternating current charging voltage | Jun Suzuki, Satoshi Tsuruya, Masaru Shimura | 2003-08-26 |
| 6603935 | Image forming apparatus featuring application of superimposed DC and AC voltages and DC voltage | Satoshi Tsuruya, Jun Suzuki, Masaru Shimura | 2003-08-05 |
| 6564027 | Image forming apparatus | Manami Haraguchi | 2003-05-13 |
| 6560426 | Image forming apparatus | Satoshi Tsuruya, Jun Suzuki, Masaru Shimura | 2003-05-06 |
| 6484007 | Image forming apparatus featuring a conductive developing roller including a mandrel, an elastic layer, an intermediate layer, and a charge-providing layer formed thereon | Yukihiro Ozeki, Makoto Nonomura, Manami Sekiguchi | 2002-11-19 |
| 6438331 | Image forming apparatus with cleaning sequence of contact charging members | Manami Sekiguchi | 2002-08-20 |
| 6397032 | Image forming apparatus including a developer bearing member having multiple layers | Yukihiro Ohzeki, Manami Sekiguchi | 2002-05-28 |
| 6389253 | Image forming apparatus featuring a regulating member for regulating a number of layers of a developer carried by a developer carrying member | Makoto Nonomura, Yukihiro Ozeki, Manami Sekiguchi | 2002-05-14 |