Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810419 | Shaped electroconductive aromatic imide polymer article and process for producing | Seiichirou Takabayashi, Morio Nakamura, Tatuaki Maeda | 1989-03-07 |
| 4797307 | Process for the preparation of polyimide film | Seiichiro Takabayashi, Yuji Matsui | 1989-01-10 |