Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135791 | Optical device | Michihisa Isobe, Masahiko Moritani, Masahiro Niwano, Kenji Manabe | 1992-08-04 |
| 4812345 | Optical disk substrate | Michihisa Isobe, Kazuhiro Yokoo, Hideaki Matsuura | 1989-03-14 |
| 4785053 | Optical resin material having improved birefringence | Iko Ito, Michihisa Isobe | 1988-11-15 |
| 4316004 | Process for producing oxybenzoyl copolyesters | Hiroaki Sugimoto | 1982-02-16 |
| 4313870 | Process for producing polycondensates | Haruo Suzuki, Kuniaki Asai, Katsuji Ueno | 1982-02-02 |
| 4311823 | Process for producing aromatic polyesters | Haruo Suzuki, Kuniaki Asai, Katsuji Ueno | 1982-01-19 |