Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778286 | Apparatus for measuring distortion of cylindrical body | Yoshio Takeshige | 2004-08-17 |
| 5416263 | Process for producing 4,4'-Diamino-1,1'-dianthraquinonyl pigments | Katsutoshi Numano, Toshiaki Kishimoto, Hiroki Inoue, Yoshiaki Hayashi, Keisuke Ito | 1995-05-16 |
| 5393899 | Process for purification of crude 4,4'-diamino-1,1'-dianthraquinonyl-3,3'-disulfonic acids and salts thereof | Hiroki Inoue, Katsutoshi Numano, Toshiaki Kishimoto, Yoshiaki Hayashi, Keisuke Ito | 1995-02-28 |
| 5320678 | Process for producing 4,4'-diamino-1,1,'-dianthraquinonyl pigments | Hiroki Inoue, Toshiaki Kishimoto, Kunitoshi Takahashi, Yoshiaki Hayashi, Keisuke Ito | 1994-06-14 |
| 4966533 | Vacuum pump with rotational sliding piston support | Akito UCHIDA | 1990-10-30 |
| 4481358 | Process for producing dioxazine violet pigment | Yoshiaki Hayashi | 1984-11-06 |
| 4354506 | Intracranial pressure gauge | Kunihiko Osaka, Shigenori Hokari, Kenichi Takahashi | 1982-10-19 |
| 4317908 | Process for producing dioxazine violet pigment | Yoshiaki Hayashi | 1982-03-02 |