Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9008561 | Fixing device | — | 2015-04-14 |
| 8532546 | Developer supply device and image forming apparatus having the same | Yuji Nishigaki, Tomoaki Hazeyama, Yasuhiro Maruyama | 2013-09-10 |
| 8406662 | Developer supply device | — | 2013-03-26 |
| 8401445 | Developer supply apparatus and image forming apparatus | Takanori Uno, Mitsukiyo Okamura, Kenjiro Nishiwaki, Yasuhiro Maruyama, Tomoaki Hazeyama +1 more | 2013-03-19 |
| 8346136 | Electrode configuration for carrying developer in a developer carrying device and image forming device | Kenjiro Nishiwaki | 2013-01-01 |
| 8275298 | Developer supply device | Mitsukiyo Okamura | 2012-09-25 |
| 8265530 | Developer carrying device and image forming device | — | 2012-09-11 |
| 8165503 | Image forming apparatus and liquid developer holding member including a core member and a dielectric layer with concave portions provided on an outer circumerence of the core member | — | 2012-04-24 |
| 8145103 | Image formation device and developer supply device | Tomoaki Hazeyama | 2012-03-27 |
| 8064806 | Image forming device having a developing material case with a moving vibrating region | Kenjiro Nishiwaki | 2011-11-22 |
| 7822373 | Developer conveying device and image-forming apparatus with electrodes for conveying charged developer | — | 2010-10-26 |
| 5883649 | Image forming apparatus using an aperture electrode with improved toner passage by controlling toner flow to and from the apertures | — | 1999-03-16 |
| 5734397 | Image forming apparatus | — | 1998-03-31 |
| 5625392 | Image forming device having a control electrode for controlling toner flow | — | 1997-04-29 |
| 5552814 | Image recording apparatus wherein toner carrier member and particle-flow modulating electrode member are held in contact with each other | Tomoaki Hattori | 1996-09-03 |
| 5539438 | Image forming apparatus having an aperture electrode and low friction toner supplying device | — | 1996-07-23 |
| 5508723 | Electric field potential control device for an image forming apparatus | — | 1996-04-16 |
| 5497175 | Image forming apparatus having aperture electrodes with lubricating layer thereon | — | 1996-03-05 |
| 5263011 | Optical recording and reproducing apparatus and recording medium having multilayer recording membranes | Kenzou Ishibashi | 1993-11-16 |
| 5128695 | Imaging material providing device | — | 1992-07-07 |
| 5115760 | Developer material coating apparatus having developer material removing unit | — | 1992-05-26 |
| 5099271 | Imaging material providing device | Yasuhiro Hattori | 1992-03-24 |
| 4974015 | Image recording medium producing apparatus | — | 1990-11-27 |