Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9851681 | Image forming apparatus having a power supply common to primary transfer and secondary transfer | Yoshikuni Ito, Yasuhiro Horiguchi, Takayuki Tanaka, Kenji Karashima, Shinichi Nishida +1 more | 2017-12-26 |
| 9588465 | Image forming apparatus having a power supply common to primary transfer and secondary transfer | Yoshikuni Ito, Yasuhiro Horiguchi, Takayuki Tanaka, Kenji Karashima, Shinichi Nishida +1 more | 2017-03-07 |
| 9501000 | Image forming apparatus | Kenji Karashima, Yoshikuni Ito, Yasuhiro Horiguchi, Takeshi Fujino, Takahiro Kawamoto +3 more | 2016-11-22 |
| 9229400 | Image forming apparatus having a power supply common to primary transfer and secondary transfer | Yoshikuni Ito, Yasuhiro Horiguchi, Takayuki Tanaka, Kenji Karashima, Shinichi Nishida +1 more | 2016-01-05 |
| 9217962 | Image forming apparatus | Kenji Karashima, Yoshikuni Ito, Yasuhiro Horiguchi, Takeshi Fujino, Takahiro Kawamoto +3 more | 2015-12-22 |
| 9058010 | Image forming apparatus configured to perform a primary transfer of a toner image from a plurality of image bearing members to an intermediate transfer belt by following a current in circumferential direction with respect to the intermediate transfer belt | Yoshikuni Ito, Yasuhiro Horiguchi, Takayuki Tanaka | 2015-06-16 |
| 9052677 | Image forming apparatus | Yasuhiro Horiguchi, Yoshikuni Ito, Takayuki Tanaka | 2015-06-09 |
| 7020419 | Image formation apparatus, and control method for image formation apparatus | Shinichi Tsukida, Katsuhiro Sakaizawa, Takehiko Suzuki, Seiichi Shinohara, Masahiro Shibata | 2006-03-28 |
| 6915094 | Composition for accessing a memory in image formation apparatus and method for accessing a memory in image formation apparatus | Shinichi Tsukida, Katsuhiro Sakaizawa, Takehiko Suzuki, Seiichi Shinohara, Masahiro Shibata | 2005-07-05 |
| 6885473 | Image forming apparatus having cleaner devices for performing improved cleaning operations | — | 2005-04-26 |
| 6751423 | Developing apparatus and image forming apparatus | Katsuhiro Sakaizawa, Seiichi Shinohara, Masahiro Shibata | 2004-06-15 |
| 6611669 | Image forming apparatus with superposed direct current and alternating current charging voltage | Jun Suzuki, Katsuhiro Sakaizawa, Masaru Shimura | 2003-08-26 |
| 6603935 | Image forming apparatus featuring application of superimposed DC and AC voltages and DC voltage | Katsuhiro Sakaizawa, Jun Suzuki, Masaru Shimura | 2003-08-05 |
| 6560426 | Image forming apparatus | Katsuhiro Sakaizawa, Jun Suzuki, Masaru Shimura | 2003-05-06 |
| 6498905 | Image forming cartridge set-up and control | — | 2002-12-24 |
| 6449451 | Image forming apparatus | Jun Suzuki | 2002-09-10 |
| 5956541 | Controlling image formation based on amount of developer recovered | Norihisa Hoshika | 1999-09-21 |