Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5478055 | Slide gate plate for casting and method for mounting and removing the same | Toshio Kawamura, Shogo Mizutani, Akira Sato, Kenichi Tsujimoto, Yuuichi Kanai +1 more | 1995-12-26 |
| 5278262 | Polymerization apparatus and batch-wise process for producing vinyl chloride resin | Yoshio Tomishima, Kazuo Dairaku, Takekazu Maeda, Nobuki Toba, Hideyuki Kametani +2 more | 1994-01-11 |
| 5169918 | Polymerization apparatus having an effective height/effective inner diameter ratio of at least 4 and a circumferential agitative diameter/effective inner ratio diameter of from 0.7 to 0.9 | Yoshio Tomishima, Kazuo Dairaku, Takekazu Maeda, Nobuki Toba, Hideyuki Kametani +2 more | 1992-12-08 |
| 5128107 | Apparatus for making ester | Yoshihisa Katoh, Takashi Ogawa | 1992-07-07 |
| 5011603 | Ceramic filter | Yoshihisa Katoh, Takashi Ogawa | 1991-04-30 |
| 4957625 | Ceramic filter modules in series with piston backwash | Yoshihisa Katoh, Takashi Ogawa, Masashi Fujimoto, Masaaki Hayashi | 1990-09-18 |
| 4909950 | Process and apparatus for separating solid-liquid compositions | Yoshihisa Katoh, Takashi Ogawa, Yukihiko Nagao | 1990-03-20 |
| 4897204 | Process and apparatus for gas dissolution | Yoshihisa Katoh, Takashi Ogawa, Masashi Fujimoto | 1990-01-30 |
| 4863617 | Process and apparatus for separating solid-liquid compositions | Yoshihisa Katoh, Takashi Ogawa, Yukihiko Nagao | 1989-09-05 |
| 4839488 | Electric discharge machine using a ceramic filter to filter the working fluid | Yoshihisa Katoh, Takashi Ogawa | 1989-06-13 |