Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5746505 | Electrical conductor for an optical system | Yukihiro Aikawa, Ikuo Makie, Tsutomu Sugaya, Hiroyuki Sadamori | 1998-05-05 |
| 5600406 | Fixing temperature control device | Yukihiro Aikawa, Satoshi Ishii, Hiroyuki Sadamori, Tsutomu Sugaya | 1997-02-04 |
| 5438390 | Image forming apparatus having monocoque housing structure including unitary toner collecting vessel | Masahiko Kobayashi, Masakatsu Akashi, Tsutomu Sugaya, Yoshihisa Tanaka, Toshiaki Kusuda +4 more | 1995-08-01 |
| 5319432 | Sheet delivery mechanism | Masakatsu Akashi, Masahiko Kobayashi, Tsutomu Sugaya | 1994-06-07 |
| 5315350 | Image forming apparatus provided with a controller for fixing roller heater | Masakatsu Akashi, Masahiko Kobayashi, Tsutomu Sugaya | 1994-05-24 |
| 5214477 | Image forming apparatus having a toner density detecting device | Masakatsu Akashi, Masahiko Kobayashi, Tsutomu Sugaya | 1993-05-25 |
| 5206696 | Image forming apparatus provided with a movable document table | Masakatsu Akashi, Masahiko Kobayashi, Tsutomu Sugaya | 1993-04-27 |
| 4873549 | Device for detecting the life of an image forming process unit, opening of a seal of the unit and attachment of the unit to an image forming apparatus | Tomio Tada, Junichi Takamatsu, Kazuto Hori, Yukihiro Aikawa | 1989-10-10 |
| 4621802 | Sheet material conveying device | Hiroshi Ishida, Toshikazu Tomi, Masami Taniguchi | 1986-11-11 |
| 4607943 | Control circuit for an electrostatic copying apparatus | Masahiro Yoshioka, Masahiro Murakami, Yoichiro Irie, Tsugio Nakanishi, Eiji Tsutsui +2 more | 1986-08-26 |
| 4571062 | Electrostatic copying process and apparatus | Masahiro Yoshioka, Masahiro Murakami, Yoichiro Irie, Tsugio Nakanishi, Eiji Tsutsui +2 more | 1986-02-18 |
| 4568170 | Supporting frame for a variable ratio electrostatic copying apparatus | Masahiro Yoshioka, Masahiro Murakami, Yoichiro Irie, Tsugio Nakanishi, Eiji Tsutsui +2 more | 1986-02-04 |
| 4551013 | Electrostatic copying process | Masahiro Yoshioka, Masahiro Murakami, Yoichiro Irie, Tsugio Nakanishi, Eiji Tsutsui +2 more | 1985-11-05 |