Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537716 | Toner for developing electrostatic images and heat fixing method | Shinji Doi, Hirohide Tanikawa, Hiroaki Kawakami, Tsutomu Onuma | 2003-03-25 |
| 5824442 | Developing method, image forming method, and heat fixing method, with toner | Hirohide Tanikawa, Hiroaki Kawakami, Kazunori Kato | 1998-10-20 |
| 5707770 | Toner for developing electrostatic images, two component type developer, developing method, image forming method, heat fixing method, and process for producing toner | Hirohide Tanikawa, Hiroaki Kawakami, Kazunori Kato | 1998-01-13 |
| 5614344 | Toner for developing electrostatic images and image forming method | Hiroaki Kawakami, Shinji Doi, Hirohide Tanikawa, Kazunori Kato | 1997-03-25 |
| 5389487 | Image forming process, image-forming apparatus, apparatus unit, and facsimile apparatus | Hiroaki Kawakami, Shinji Doi, Keita Nozawa, Masashi Jimbo | 1995-02-14 |
| 5384224 | Toner for developing electrostatic image | Hirohide Tanikawa, Hiroaki Kawakami, masashi Jinbo, Tsutomu Onuma | 1995-01-24 |
| 5364722 | Toner for developing electrostatic image and heat-fixing method comprising a hydrocarbon wax | Hirohide Tanikawa, Hiroaki Kawakami, masashi Jinbo, Tsutomu Onuma | 1994-11-15 |
| 5213933 | Positively chargeable magnetic toner, image forming process image forming apparatus, apparatus unit and facsimile apparatus | Ichirou Osaki, Keita Nozawa, Kuniko Kobayashi, Masayoshi Shimamura | 1993-05-25 |
| 5202213 | Developer with surface treated silicic acid for developing electrostatic image | Toshiaki Nakahara, Hirohide Tanikawa, Satoshi Yoshida, Kiichiro Sakashita | 1993-04-13 |
| 5014089 | Developer in an image forming device having a binding resin and magnetic powder | Kiichiro Sakashita, Toshiaki Nakahara, Hirohide Tanikawa, Naoki Matsushige, Satoshi Yoshida +1 more | 1991-05-07 |
| 4999272 | Electrophotographic analog and digital imaging and developing using magnetic toner | Hirohide Tanikawa, Toshiaki Nakahara, Satoshi Yoshida, Kiichiro Sakashita | 1991-03-12 |
| 4985327 | Non-magnetic toner | Kiichiro Sakashita, Hirohide Tanikawa, Satoshi Yoshida, Toshiaki Nakahara, Naoki Matsushige +1 more | 1991-01-15 |
| 4957840 | Developer and image forming device | Kiichiro Sakashita, Toshiaki Nakahara, Hirohide Tanikawa, Naoki Matsushige, Satoshi Yoshida +1 more | 1990-09-18 |