Issued Patents All Time
Showing 51–70 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5202273 | Method of manufacturing a vertical semiconductor device | — | 1993-04-13 |
| 5164779 | Image forming apparatus with dual voltage supplies for selectively charging and discharging an image bearing member | Junji Araya, Noribumi Koitabashi, Hiromitsu Hirabayashi | 1992-11-17 |
| 5132738 | Image forming apparatus with cleaning mechanism for charging electrode | Hiroki Kisu, Yohji Tomoyuki, Masanobu Saito, Junji Araya, Toshio Miyamoto | 1992-07-21 |
| 5126913 | Charging device with contactable charging means and an image forming apparatus having the charging means and a detachable process unit | Junji Araya, Masanobu Saito, Hiroki Kisu, Yohji Tomoyuki, Noribumi Koitabashi +1 more | 1992-06-30 |
| 4851960 | Charging device | Hiromitsu Hirabayashi, Junji Araya, Noribumi Koitabashi | 1989-07-25 |
| 4660958 | Developing apparatus | Hidemi Egami, Fumitaka Kan, Atsushi Hosoi, Hatsuo Tajima, Kimio Nakahata | 1987-04-28 |
| 4638760 | Developing apparatus | Fumitaka Kan, Hidemi Egami, Atsushi Hosoi, Hatsuo Tajima, Kimio Nakahata | 1987-01-27 |
| 4637706 | Developer thin layer forming apparatus | Atsushi Hosoi, Fumitaka Kan, Hidemi Egami, Hatsuo Tajima, Kimio Nakahata | 1987-01-20 |
| 4610531 | Developing method and apparatus | Nobuhiro Hayashi, Kimio Nakahata, Hatsuo Tajima | 1986-09-09 |
| 4607938 | Method and apparatus for forming a thin layer of developer | Atsushi Hosoi, Kimio Nakahata, Hatsuo Tajima, Hidemi Egami, Fumitaka Kan | 1986-08-26 |
| 4563978 | Developing apparatus | Fumitaka Kan, Hidemi Egami, Atsushi Hosoi, Hatsuo Tajima, Kimio Nakahata | 1986-01-14 |
| 4559899 | Thin developer layer forming device | Fumitaka Kan, Hidemi Egami, Atsushi Hosoi, Hatsuo Tajima, Kimio Nakahata | 1985-12-24 |
| 4425373 | Method for image development by application of alternating bias | Nagao Hosono, Tohru Takahashi, Junichiro Kanbe, Tsutomu Toyono, Yasuyuki Tamura | 1984-01-10 |
| 4391512 | Developing device using magnetic developer | Kozo Arao | 1983-07-05 |
| 4391891 | Developing method using (alternating electric field and) a developer of the field-dependent type and an apparatus therefor | Yasuyuki Tamura, Junichiro Kanbe, Tsutomu Toyono, Tohru Takahashi | 1983-07-05 |
| 4363861 | Toner transfer development using alternating electric field | Junichiro Kanbe, Tsutomu Toyono, Tohru Takahashi, Yasuyuki Tamura | 1982-12-14 |
| 4355884 | Electrophotographic apparatus | Haruhisa Honda, Tsutomu Toyono, Kano Tanaka, Yoshimasa Kimura | 1982-10-26 |
| 4314017 | Developer without carrier powder having an improved triboelectric charging property | Tohru Takahashi, Tsutomu Toyono, Junichiro Kanbe, Yasuyuki Tamura | 1982-02-02 |
| 4265197 | Developing method and apparatus using application of first and second alternating bias voltages for latent image end portions and tone gradation, respectively | Tsutomu Toyono, Junichiro Kanbe, Yasuyuki Tamura, Tohru Takahashi | 1981-05-05 |
| 4252434 | Method and apparatus for conveying developing agent | Tsutomu Toyono | 1981-02-24 |