Issued Patents All Time
Showing 76–100 of 102 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5166282 | Process for producing vinyl chloride polymer with antioxidant | Shigehiro Hoshida | 1992-11-24 |
| 5159032 | Process for terminating the polymerization of vinyl chloride with an aqueous dispersion of an antioxidant containing a polyoxyalkylene oxide | Shigehiro Hoshida | 1992-10-27 |
| 5153284 | Process of producing a vinyl chloride polymer | Shigehiro Hoshida | 1992-10-06 |
| 5142004 | Method of producing vinyl chloride resin having high plasticizer absorption and low defect content by suspension polymerization | Shigehiro Hoshida | 1992-08-25 |
| 5132382 | Method for the preparation of a polyvinyl chloride resin powder with improved flowability | Genji Noguki, Toshimichi Koga | 1992-07-21 |
| 5130387 | Process for producing vinyl chloride polymer | Shigehiro Hoshida | 1992-07-14 |
| 5118741 | Vinyl chloride resin compositions used for food containers and food packing materials | Shigehiro Hoshida | 1992-06-02 |
| 5100988 | Initiated scale-free formation of vinyl chloride polymers using washing liquid at temperature affecting initiator half-life | Shigehiro Hoshida | 1992-03-31 |
| 5096988 | Process for preparing vinyl chloride polymer with two-stage addition of dispersion stabilizers | Shigehiro Hoshida | 1992-03-17 |
| 5064917 | Process of polymerizing vinyl chloride with washing of charging passage | Shigehiro Hoshida | 1991-11-12 |
| 5049631 | Method for preparation of vinyl chloride resin in presence of polyglycidyl compounds | Shigehiro Hoshida | 1991-09-17 |
| 5011897 | Process for preparing vinyl chloride polymer using hydroxyphenyl monomers | Junichi Watanabe | 1991-04-30 |
| 4985524 | Process of polymerizing vinyl chloride with post-heating of charging passage | Shigehiro Hoshida | 1991-01-15 |
| 4972012 | Polyvinyl chloride resin composition | Hajime Kitamura | 1990-11-20 |
| 4954595 | Method for preparing vinyl chloride polymers | Shigehiro Hoshida | 1990-09-04 |
| 4910273 | Method for charging stabilizer for suspension polymerization of vinyl chloride | Kouzou Kuwabara, Junichi Watanabe | 1990-03-20 |
| 4885333 | Polyvinyl chloride resin composition having improved thermal stability and a method for the preparation thereof | Tokuji Abe | 1989-12-05 |
| 4845174 | Process for preparing a vinyl chloride polymer | Junichi Watanabe, Hajime Kitamura | 1989-07-04 |
| 4826940 | Method for suspension polymerization of vinyl chloride monomer | Yoshitaka Okuno, Junichi Watanabe | 1989-05-02 |
| 4806962 | Automatic developing apparatus | Makoto Uchida, Hiroyuki Kakuhari, Wataru Isogawa | 1989-02-21 |
| 4672831 | Bending press | Tsuneo Kogure, Yuji Tsuchiyama, Hideaki Takahashi, Katsuji Sekita, Ichio Akami | 1987-06-16 |
| 4656862 | Press machine | Tsuneo Kogure, Yuji Tsuchiyama, Hideaki Takahashi, Katsuji Sekita, Ichio Akami | 1987-04-14 |
| 4608852 | Press machine | Tsuneo Kogure, Yuji Tsuchiyama, Hideaki Takahashi, Katsuji Sekita, Ichio Akami | 1986-09-02 |
| 4607949 | Photographic print making method | Haruo Hakamada, Hiromitsu Kamiyama | 1986-08-26 |
| 4577538 | Backgauge device | Tadashi Hirata | 1986-03-25 |