Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5449584 | Positive photo-sensitive resin composition comprising a photosensitive polybenzoxazole or a mixture of a polybenzoxazole, an organic solvent soluble polymer and a diazoquinone and/or a dihydropyridine compound | Toshio Banba, Etsu Takeuchi, Toshiro Takeda, Naoshige Takeda | 1995-09-12 |
| 5385808 | Photosensitive resin composition and semiconductor apparatus using it | Nobuyuki Sashida, Etsu Takeuchi, Takashi Hirano | 1995-01-31 |
| 5238784 | Photosensitive resin composition with polyamic acid polymer | Nobuyuki Sashida, Etsu Takeuchi, Takashi Hirano | 1993-08-24 |
| 5206337 | Solvent-soluble polyimidesiloxane oligomer and process for producing the same | Toshiro Takeda, Naoshige Takeda | 1993-04-27 |