Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5997122 | Ink jet recording apparatus capable of performing liquid droplet diameter random variable recording and ink jet recording method using ink for liquid droplet random variable recording | Jiro Moriyama, Yutaka Koizumi, Shoji Koike, Yoshinobu Shimomura, Toshiaki Hirosawa +1 more | 1999-12-07 |
| 5583553 | Forming method of color images | Koromo Shirota, Shoji Koike | 1996-12-10 |
| 5296022 | Ink-jet recording method and apparatus employing ink containing halogenated alkanol with 2 to 4 carbon atoms | Masatsune Kobayashi, Shoji Koike, Shinichi Tochihara, Akira Nagashima, Koromo Shirota +1 more | 1994-03-22 |
| 5258066 | Ink containing halogenated alkanol with 2 to 4 carbon atoms, recording method and apparatus using the same | Masatsune Kobayashi, Shohji Koike, Shinichi Tochihara, Akira Nagashima, Koromo Shirota +1 more | 1993-11-02 |
| 5254157 | Recording solution containing a compound obtained by alkylation or acetylation of a triol | Shoji Koike, Koromo Shirota | 1993-10-19 |
| 5248991 | Ink, ink-jet recording process recording unit, ink cartridge, and ink-jet recording apparatus employing ink | Koromo Shirota, Shoji Koike | 1993-09-28 |
| 5221333 | Ink, inj-jet recording process, and instrument using the ink | Koromo Shirota, Shoji Koike | 1993-06-22 |
| 5220347 | Ink jet recording method and apparatus employing ink | Koromo Shirota, Shoji Koike | 1993-06-15 |
| 5190581 | Ink, ink-jet recording method, and instrument employing the ink | Koromo Shirota, Shoji Koike | 1993-03-02 |
| 5141558 | Ink, ink-jet recording process, and instrument using the ink | Koromo Shirota, Shoji Koike | 1992-08-25 |
| 5130726 | Ink jet recording apparatus | Jiro Moriyama, Kimio Nishitani | 1992-07-14 |
| 5118351 | Ink, ink-jet recording process, and instrument using the ink | Koromo Shirota, Shoji Koike | 1992-06-02 |
| 5015766 | Preparation process of acrylamide | Yoshihiko Kambara, Itsuo Oonaka, Koichi Asao | 1991-05-14 |