Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308569 | Process for the preparation of aromatic polyimide film | Toshikazu Hamamoto, Hiroshi Inoue, Yoshiyuki Miwa, Tetsuji Hirano, Kenji Matsubara +1 more | 1994-05-03 |
| 5262227 | Aromatic polyimide film laminated with metal foil | Seiichirou Takabayashi, Kazuaki Mii, Shuji Watakabe | 1993-11-16 |
| 5221291 | Abrasive sheet and process for producing same | Yuji Matsui | 1993-06-22 |
| 4958002 | High purity crystals of biphenyltetracarboxylic dianhydride and process for their preparation | Shinichirou Yamamoto, Genji Koga | 1990-09-18 |
| 4895596 | Method of recovering palladium catalyst | Akira Ishikawa, Masaki Kashibe | 1990-01-23 |