Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6455646 | Polymerization of vinyl chloride with hydroxycarboxylic acids, inhibitors and Fe ions | Masahiro Usuki, Tadashi Amano | 2002-09-24 |
| 5759739 | Resist composition with polymeric dissolution inhibitor and alkali soluble resin | Katsuya Takemura, Toshinobu Ishihara, Kazumasa Maruyama, Yoshihumi Takeda, Ken'ichi Itoh | 1998-06-02 |
| 5614593 | Preparation of matte vinyl chloride polymer and composition thereof | Toshimichi Koga, Osamu Matsumoto, Makoto Suzuki | 1997-03-25 |
| 5486582 | Polymer scale preventive process using a coating of chitosan salt and phenothiazine | Toshihide Shimizu | 1996-01-23 |
| 5418302 | Process to prevent polymer scale adhesion using a two part coating | Toshihide Shimizu | 1995-05-23 |
| 5401815 | Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing polymer using said vessel | Toshihide Shimizu | 1995-03-28 |
| 5378775 | Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing polymer using said vessel | Toshihide Shimizu | 1995-01-03 |
| 5376747 | Process for producing vinyl chlorine-based polymer via continuous or intermittent addition of dispersing stabilizer | Tadashi Amano | 1994-12-27 |
| 5364466 | Polymer scale preventive agent, polymerization vessel effective in preventing polymer scale deposition, and process of producing polymer using said vessel | Toshihide Shimizu | 1994-11-15 |
| 5302639 | Polymer scale preventive agent | Toshihide Shimizu | 1994-04-12 |
| 5282680 | Apparatus for continuous polymerization | Tadashi Amano, Shuji Ohnishi, Yasuhiro Takahashi, Hajime Kitamura | 1994-02-01 |
| 5264505 | Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing polymer using said vessel | Toshihide Shimizu | 1993-11-23 |
| 5254646 | Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing polymer using said vessel | Toshihide Shimizu | 1993-10-19 |
| 5212265 | Method for recovering unreacted monomers after preparation of vinylic polymer | Tadashi Amano | 1993-05-18 |
| 5201945 | Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing polymer using said vessel | Toshihide Shimizu | 1993-04-13 |