Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7761040 | Image forming apparatus having developer with opposite polarity particles | Shigeo Uetake, Toshiya Natsuhara, Masahiko Matsuura, Takeshi Maeyama | 2010-07-20 |
| 7738814 | Development apparatus, image-forming apparatus and developing method using reverse polarity particles | Masahiko Matsuura, Toshiya Natsuhara, Takeshi Maeyama, Shigeo Uetake | 2010-06-15 |
| 7734227 | Developing device and image-forming apparatus using multiple-component developer | Shigeo Uetake, Yuji Nagatomo, Takeshi Maeyama, Masahiko Matsuura, Toshiya Natsuhara | 2010-06-08 |
| 7697873 | Development apparatus, image forming apparatus and developing method that employ a magnetic brush | Masahiko Matsuura, Toshiya Natsuhara, Takeshi Maeyama, Shigeo Uetake | 2010-04-13 |
| 7689150 | Image forming apparatus using trapezoidal shaped electric field and method for forming image | Shigeo Uetake, Toshiya Natsuhara, Takeshi Maeyama | 2010-03-30 |
| 7653335 | Developing apparatus and image forming apparatus | Toshiya Natsuhara, Masahiko Matsuura, Takeshi Maeyama, Shigeo Uetake | 2010-01-26 |
| 7263320 | Image forming apparatus, developing apparatus, and finely-divided toner particle collecting apparatus | Shigeo Uetake, Masahiko Matsuura, Takeshi Maeyama | 2007-08-28 |
| 7202675 | Device and method for measuring toner current | Shigeo Uetake, Masahiko Matsuura, Takeshi Maeyama, Yuji Nagatomo | 2007-04-10 |
| 6461512 | Method of disinfecting a deionized water producing apparatus and method of producing deionized water | Shigeaki Sato | 2002-10-08 |
| 5132196 | Photosensitive member having a colored aluminum oxide layer | Yasuyuki Nomura, Fumio Masuda | 1992-07-21 |