Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4893180 | Color image signal processing method | Takao Shigaki, Hitoshi Urabe | 1990-01-09 |
| 4845550 | Method and apparatus for processing picture image signals | Hitoshi Urabe, Tadashi Miyakawa, Hisashi Kudo, Hideaki Kimura | 1989-07-04 |
| 4841362 | Apparatus for generating positive or negative image output signals from either positive or negative originals | Hitoshi Urabe, Takao Shigaki | 1989-06-20 |
| 4792847 | Method for automatically setting signal processing conditions in image input/output system | Hitoshi Urabe, Takao Shigaki | 1988-12-20 |
| 4785347 | Method for emphasizing sharpness of a picture image by forming and processing sharp and unsharp signals from a picture image signal | Daigo Ezuka | 1988-11-15 |
| 4734763 | Apparatus for generating positive or negative image output signals from either positive or negative originals | Hitoshi Urabe, Takao Shigaki | 1988-03-29 |
| 4731618 | Control method for thermal recording | — | 1988-03-15 |
| 4591904 | Picture image input/output system | Hitoshi Urabe, Masayuki Matsumoto, Hisashi Kudo | 1986-05-27 |