Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10130978 | Cleaning method of oil tank and cleaning device of same | Katsuhiko Kawakami, Guiqing Xu, Masayuki Kidokoro, Masanao Kato, Masanao Mitsuhata +3 more | 2018-11-20 |
| 9586189 | Catalyst loading device and catalyst loading method | Katsuhiko Kawakami, Masanao Kato | 2017-03-07 |
| 4941181 | Data processing method in recognition system | Kimio Igarashi, Kenji Matsui | 1990-07-10 |
| 4924210 | Method of controlling communication in an ID system | Kenji Matsui | 1990-05-08 |
| 4827115 | ID system and method or writing data in an ID system | Hisato Fujisaka | 1989-05-02 |
| 4438326 | System for performing transactions | — | 1984-03-20 |
| 4375032 | Transaction processing system | — | 1983-02-22 |
| 4309088 | Film magazine having an identity mark for identifying sensitivity of the film and a camera therefor | Michio Yagi, Kazuo Shiozawa | 1982-01-05 |
| 4219268 | Device for electronic-flash proximity photography | — | 1980-08-26 |
| 4214826 | Method and device for controlling the exposure of a camera when photographing an object of which luminance is different on each surface section thereof | Kazuo Shiozawa, Kiziro Suzuki | 1980-07-29 |
| 4211558 | Color printing method | Masanobu Oguchi, Hidehiko Ishikawa, Haruyoshi Okuyama, Kiyoshi Izawa | 1980-07-08 |
| 4182560 | Color printing method | Masanobu Oguchi, Hidehiko Ishikawa, Haruyoski Okuyama, Kiyoshi Izawa | 1980-01-08 |