Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8320797 | Developer storing vessel and image forming apparatus | Naomasa Okimura, Atsuna Saiki, Kazuhiro Saito | 2012-11-27 |
| 8311460 | Image forming apparatus | Naomasa Okimura | 2012-11-13 |
| 6807393 | Image forming unit and image forming apparatus | Takao Sameshima | 2004-10-19 |
| 6507386 | Image forming apparatus featuring a driving force transmitting portion substantially coaxial with a developing unit | — | 2003-01-14 |
| 6493528 | Image forming unit and image forming apparatus | Takao Sameshima | 2002-12-10 |
| 6473580 | Driving force receiving member, shaft coupling, toner image bearing member, process cartridge and electrophotographic image forming apparatus | — | 2002-10-29 |
| 6081676 | Electrophotographic image forming apparatus using guided light to detect waste toner in a process cartridge toner accommodating unit | — | 2000-06-27 |
| 5781826 | Image forming apparatus with movable member shiftable at different speeds | — | 1998-07-14 |
| 5617188 | Developing apparatus provided with a portable developing unit for supporting a plurality of developing devices | — | 1997-04-01 |
| 5528343 | Driving cartridge for an image forming apparatus | Hideki Tada, Hisayoshi Kojima, Masanori Yamagata, Toshiki Nagase, Akira Ito | 1996-06-18 |
| 5521693 | Image forming apparatus and process cartridge detachably mountable to same | Hisayoshi Kojima, Masaki Ohtake, Toshiki Nagase | 1996-05-28 |
| 5497220 | Developing cartridge having support member for rotatably supporting developing device, and developing apparatus | Hisayoshi Kojima | 1996-03-05 |
| 5495327 | Image forming apparatus | — | 1996-02-27 |
| 5452064 | Image forming apparatus having a transfer member rotatable in synchronism with a photosensitive member | — | 1995-09-19 |
| 5428426 | Image forming system | Hisayoshi Kojima, Toshiki Nagase, Toshiaki Miyashiro | 1995-06-27 |
| 5323210 | Image forming apparatus featuring a multiple mode service access main assembly | — | 1994-06-21 |
| 5276479 | Process cartridge having plural developing units and image forming apparatus capable of mounting process cartridge | — | 1994-01-04 |
| 5260751 | Image forming apparatus with variable speed recording material carrying means | — | 1993-11-09 |
| 5250994 | Image forming apparatus having transfer member supporting member | Akira Ito, Yasuo Ito, Hisayoshi Kojima, Tatsuya Kobayashi, Toshiaki Miyashiro | 1993-10-05 |
| 5235383 | Process cartridge and image forming apparatus using same | Hideki Tada, Hisayoshi Kojima, Masanori Yamagata, Toshiki Nagase, Akira Ito | 1993-08-10 |
| 5158381 | Printing media feeding apparatus for printers | Haruhisa Inagaki, Fumio Nakao | 1992-10-27 |
| 5156466 | Method and apparatus for adjusting the spacing between head and platen in an impact printer or the like | Haruhisa Inagaki, Fumio Nakao | 1992-10-20 |
| 5083880 | Printing media feeding apparatus for printers | Haruhisa Inagaki, Fumio Nakao | 1992-01-28 |
| 5062726 | Process for setting a cut printing sheet | Fumio Nakao, Takashi Maekawa, Kaneastu Uchiyama, Tetsu Endo, Kazuo Nobue +2 more | 1991-11-05 |
| 4775254 | Lining method and apparatus for printers | Fumio Nakao, Kaneatsu Uchiyama, Takashi Maekawa, Tetsu Endo | 1988-10-04 |