Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362845 | Polyvinyl chloride-base resin and multistage graft resin composition | Kazumasa Kamata, Kazuo Kishida, Norihisa Osaka | 1982-12-07 |
| 4339257 | Method of producing curved and partly colored glass sheet | — | 1982-07-13 |