Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5717318 | Step-down type DC-DC regulator | Kouichi Matsuda, Mitsuo Saeki, Hidekiyo Ozawa | 1998-02-10 |
| 5717256 | Power supply apparatus and electronic appliance equipped with the power supply apparatus | Masafumi Okumura, Mituo Saeki, Hidekiyo Ozawa | 1998-02-10 |
| 5638159 | Developing unit for an image forming apparatus and method of collecting bicomponent developer therefrom | Tsukuru Kai, Nobuo Iwata, Yasushi Nakazato, Satoshi Muramatsu, Yoshiko Ishii +2 more | 1997-06-10 |
| 5619316 | Image forming apparatus | Hisashi Shoji, Tsukuru Kai, Yoshiko Ishii, Nobuto Yokokawa, Masako Suzuki +1 more | 1997-04-08 |
| 5610725 | Communication system for managing data of resources of image forming unit | Yasuo Kawada, Hidenori Sakai, Makoto Obu, Katsuhiro Echigo, Yasuhiro Kawashima +1 more | 1997-03-11 |
| 5606408 | Image forming apparatus and cleaning device therefor | Hisashi Shoji, Tsukuru Kai, Osamu Endo, Yoshiko Ishii, Nobuto Yokokawa +5 more | 1997-02-25 |
| 5598254 | Cartridge for replenishing two-ingredient developer to an image forming apparatus and a replenishing device using the same | Masumi Ikesue, Tsukuru Kai, Nobuto Yokokawa | 1997-01-28 |
| 5572412 | Power supply with heated protection diode | Mituo Saeki | 1996-11-05 |
| 5572112 | Power supply unit | Mitsuo Saeki, Hidekiyo Ozawa | 1996-11-05 |
| 5563493 | Power source system of portable information processing system using battery | Kouichi Matsuda, Hidekiyo Ozawa, Toshiro Obitsu, Tetsuo Yamamoto | 1996-10-08 |
| 5504590 | Communication system for managing data of resources of image forming unit | Yasuo Kawada, Hidenori Sakai, Makoto Obu, Katsuhiro Echigo, Yasuhiro Kawashima +1 more | 1996-04-02 |
| 5502552 | Developing device for an image forming apparatus | Naoki Iwata, Takeshi Saito, Hiromitsu Takagaki, Kazuhiro Nishido, Ichiro Komuro +2 more | 1996-03-26 |
| 5493365 | Operating section for an image forming apparatus | Hideaki Matsui, Nobuaki Tomidokoro, Shigeru Yoshiki, Shigeru Watanabe, Shinichi Kawahara +6 more | 1996-02-20 |
| 5276509 | Multi-color facsimile apparatus having different data preparation and transmission modes and data preparations and transmission method practiced by the apparatus | Shujiro Mizuno, Hitoshi Uno, Junji Hatamura, Kazunobu Asai, Eiichi Ohta +2 more | 1994-01-04 |
| 5260754 | Cleaning unit for an image forming apparatus | Naomi Misago | 1993-11-09 |
| 5255059 | Image forming apparatus | Tsukuru Kai, Seiji Oka, Shigeru Yoshiki, Tsuyoshi Deki | 1993-10-19 |
| 5235384 | Image forming apparatus with replaceable process units | Seiji Oka, Tomoji Ishikawa, Tsukuru Kai, Hisashi Ishijima, Makoto Obu | 1993-08-10 |
| 5051760 | Direct image recording apparatus using toner | Hisashi Shoji, Makoto Obu, Shinsuke Kikui, Junichi Terai, Tomoko Ogawa | 1991-09-24 |
| 4930438 | Developing device using a single component developer | Hiromi Demizu, Makoto Obu, Ryubun Seimiya, Noriyoshi Tarumi | 1990-06-05 |
| 4772253 | Endless belt | Yutaka Koizumi, Hideki Akiyoshi | 1988-09-20 |
| 4760422 | Developing device using single component toner | Ryubun Seimiya, Noriyoshi Tarumi, Hiromi Demizu, Makoto Obu | 1988-07-26 |
| 4696255 | Developing apparatus | Ryubun Seimiya, Noriyoshi Tarumi, Hiromi Demizu, Makoto Obu | 1987-09-29 |
| 4422405 | Color electrostatographic apparatus | Nobuo Kasahara, Tosio Nakahara | 1983-12-27 |
| 4267201 | Magnetic brush development apparatus and method | Tosio Nakahara, Nobuo Kasahara | 1981-05-12 |