Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4421885 | Halogen-containing resin composition containing ester plasticizer | Katsuhiro Tsuda, Hisao Tanaka, Yasuhiko Imanaga | 1983-12-20 |
| 4317760 | Halogen-containing resin composition | Katsuhiro Tsuda, Hisao Tanaka, Yasuhiko Imanaga | 1982-03-02 |