Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345054 | High-molecular-weight novolak types substituted phenolic resins and process for preparation thereof | Tadao Iwata | 1982-08-17 |
| 4342852 | Setting type resin composition containing a substantially linear, high-molecular-weight novolak substituted phenolic resin | Tadao Iwata | 1982-08-03 |