Issued Patents All Time
Showing 101–115 of 115 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5758241 | Developing device for an image forming apparatus | Seiji Oka, Kiyonori Tsuda, Yasushi Akiba | 1998-05-26 |
| 5659860 | Developing device for an image forming apparatus and toner cartridge | Fumihiro Sasaki, Satoshi Mochizuki, Hidefumi Gohhara, Megumi Sakakura, Seiji Oka +2 more | 1997-08-19 |
| 5655200 | Image transferring device for an image forming apparatus and method of forming same | — | 1997-08-05 |
| 5450177 | Image forming apparatus having a toner concentration control capability with a toner concentration sensor disposed in a developing unit | — | 1995-09-12 |
| 5198861 | Image density control method for an image forming apparatus for reducing background contamination of a photoconductive drum | Shin Hasegawa, Eiichi Katoh, Masao Moriya | 1993-03-30 |
| 5182600 | Toner end detecting method for an electrophotographic copier | Shin Hasegawa, Eiichi Katoh, Masao Moriya | 1993-01-26 |
| 5083160 | Image density control method and color image forming apparatus | Kohji Suzuki, Masao Masumura, Shinichi Namekata | 1992-01-21 |
| 4989043 | Color-balance control method | Koji Suzuki, Shinichi Namekata, Yuji Sawai, Hideo Yoo | 1991-01-29 |
| 4760427 | Exposing apparatus for color copier | Nobuyuki Sato | 1988-07-26 |
| 4406536 | Developing device | Kohji Suzuki, Toshio Kaneko, Shigekazu Enoki | 1983-09-27 |
| 4382420 | Development apparatus | Teruyuki Ohnuma, Seiichi Miyakawa, Nobuo Mochizuki, Yukio Tabata | 1983-05-10 |
| 4350749 | Reverse development method | Teruyuki Ohnuma, Seiichi Miyakawa | 1982-09-21 |
| 4286543 | Apparatus for developing electrostatic image | Teruyuki Ohnuma, Seiichi Miyakawa | 1981-09-01 |
| 4194830 | Development apparatus | Teruyuki Ohnuma, Kaoru Shimizu, Seiichi Miyakawa | 1980-03-25 |
| 4193679 | Electrophotographic apparatus comprising improved imaging system | Manabu Mochizuki, Kohji Suzuki, Teruyuki Ohnuma | 1980-03-18 |