Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7488780 | Process for preparing vinyl chloride copolymer resin | Kisaburo Noguchi, Mitsuyoshi Kuwahata, Yukio Higashiyama | 2009-02-10 |
| 7354970 | Polyvinyl chloride copolymer paste resin, composition thereof, and method for making the resin | Mitsuyoshi Kuwahata, Shinbe Matsuzaki, Nobuki Toba | 2008-04-08 |