Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235436 | Semiconductor device using positive photosensitive resin composition and process for preparation thereof | Takashi Hirano, Toshio Banba, Hiroaki Makabe, Toshiro Takeda | 2001-05-22 |
| 6071666 | Positive type photosensitive resin composition and semiconductor device using the same | Takashi Hirano, Toshio Banba, Hiroaki Makabe, Toshiro Takeda | 2000-06-06 |
| 5756260 | Photosensitive polyimide resin composition containing a stabilizer and method for formation of relief pattern using same | Nobuyuki Sashida, Toshio Banba, Mitsuhiro Yamamoto | 1998-05-26 |
| 5648451 | Process for producing photosensitive resin | Nobuyuki Sashida, Toshio Banba | 1997-07-15 |
| 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, Akira Tokoh | 1995-09-12 |
| 5206337 | Solvent-soluble polyimidesiloxane oligomer and process for producing the same | Toshiro Takeda, Akira Tokoh | 1993-04-27 |