Issued Patents All Time
Showing 276–300 of 305 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5049920 | Photocopying method and apparatus | Kazuo Sangyoji, Takemi Yamamoto, Shunichi Higashiyama, Masashi Ueda, Akira Sago +2 more | 1991-09-17 |
| 5047798 | Thermal fixing unit having gas purification means | Takemi Yamamoto, Yumio Matsumoto, Yasuo Kimura, Takashi Nakata | 1991-09-10 |
| 5023654 | Thermal fixing device for image recording apparatus | Yumio Matsumoto, Yasuo Kimura, Yuji Asano, Takemi Yamamoto, Takashi Nakata | 1991-06-11 |
| 4996553 | Method for producing gloss image on image recording medium and apparatus for making the gloss image on the medium | — | 1991-02-26 |
| 4994642 | Sheet heating device | Yumio Matsumoto, Yasuo Kimura | 1991-02-19 |
| 4981433 | Sheet heating device | Yumio Matsumoto, Yasuo Kimuya, Yuji Asano | 1991-01-01 |
| 4972225 | Sheet heating device | Yumio Matsumoto, Yasuo Kimura | 1990-11-20 |
| 4959529 | Sheet heating device | Yumio Matsumoto, Yasuo Kimura, Takatoshi Takemoto | 1990-09-25 |
| 4958781 | Cassette for photo-sensistive recording medium | Masashi Ueda, Kazumasa Makino, Yumio Matsumoto, Akira Sago, Kiyoharu Hayakawa | 1990-09-25 |
| 4945374 | Pressure developing device | Takemi Yamamoto, Hiroshi Kawahara, Yumio Matsumoto, Shigeyuki Hayashi, Kiyoharu Hayakawa +3 more | 1990-07-31 |
| 4942423 | Sheet heating device | Yumio Matsumoto, Yasuo Kimura | 1990-07-17 |
| 4939536 | Thermal fixing device in an image recording apparatus | Yumio Matsumoto | 1990-07-03 |
| 4933685 | Image transfer system with preliminary-exposure device | Yuki Asano, Akira Sago, Masashi Ueda, Yumio Matsumoto, Kiyoharu Hayakawa +5 more | 1990-06-12 |
| 4933109 | Fibrous white electrically conductive material and a white electrically conductive coating composition containing the same | Koichi Yamada, Mitutosi Murase | 1990-06-12 |
| 4931825 | Image recording apparatus provided with exposure unit using cathode ray tube | Makoto Suzuki, Shigeru Mizuno, Kazuo Sangyoji | 1990-06-05 |
| 4912506 | Image recording apparatus having exposure unit | Akira Sago, Masashi Ueda, Yumio Matsumoto, Kiyoharu Hayakawa | 1990-03-27 |
| 4908652 | Image recording apparatus having upper and lower sections separable from each other at medium exposing path | Kiyoharu Hayakawa, Yumio Matsumoto, Masashi Ueda, Akira Sago | 1990-03-13 |
| 4908653 | Exposure system for image recording apparatus | Akira Sago, Masashi Ueda, Yumio Matsumoto, Kiyoharu Hayakawa | 1990-03-13 |
| 4905036 | Image forming process and system, including heating step or device for increased density of images | Yuji Asano, Jun Sakai, Yumio Matsumoto, Akira Sago, Kiyoharu Hayakawa +3 more | 1990-02-27 |
| 4894680 | Image recording apparatus | Kiyoharu Hayakawa, Yumio Matsumoto, Masashi Ueda, Akira Sago | 1990-01-16 |
| 4885603 | Image recording apparatus for producing glossy image medium | Takashi Tomizawa | 1989-12-05 |
| 4870451 | Image recording apparatus | Kiyoharu Hayakawa, Yumio Matsumoto, Masashi Ueda, Akira Sago | 1989-09-26 |
| 4866473 | Thermal fixing device for use in recording apparatus | Kiyoharu Hayakawa, Yumio Matsumoto, Masashi Ueda, Akira Sago | 1989-09-12 |
| 4864356 | Exposure device for image recording apparatus | Yuji Asano, Masashi Ueda, Shunichi Higashiyama, Kiyoharu Hayakawa, Yumio Matsumoto +3 more | 1989-09-05 |
| 4836135 | Developing apparatus having one-component developing agent | Mitsuaki Kohyama, Naruhito Yoshida | 1989-06-06 |