Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6337378 | Process for producing polyvinyl chloride paste blending resin | Taizou Yamamoto, Masahiro Kubo, Taizou Koike | 2002-01-08 |
| 6150484 | Process for producing polyvinyl chloride paste blending resin | Taizou Yamamoto, Masahiro Kubo, Taizou Koike | 2000-11-21 |
| 4849482 | Process for suspension polymerization of vinyl chloride in a reactor equipped with a reflux condenser and a modified brumaging impeller | Yoshio Tomishima, Taizo Yamamoto, Yasuhiro Nojima | 1989-07-18 |
| 4771114 | Process for producing vinyl chlorine resin with nonionic surfactant and reflux condenser | Yoshio Tomishima, Taizo Yamamoto, Yasuhiro Nojima | 1988-09-13 |
| 4752640 | Temperature controlling method for polymerization reactors | Yoshio Tomishima, Kyosuke Kuratsune | 1988-06-21 |
| 4455413 | Method for suppressing bubbling in polymerization of vinyl chloride resin | Yoshio Tomishima, Hiroshi Shibahara, Yasuhiro Nojima | 1984-06-19 |