Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6294229 | Film for optical elements | Yasushi Satoh, Hitoshi Mazaki, Yoshihiro Kobori | 2001-09-25 |
| 6051289 | Liquid crystalline polymer film, laminate sheet for optical element using same, and optical element using the laminate | Yoshio Tsujimoto, Hiroyasu Ishikawa, Jun Mukai, Toshihiro Ichizuka, Kenji Hosaki | 2000-04-18 |
| 5413657 | Method of making compensator for liquid crystal display | Shinichirou SUZUKI, Yoshio Tsujimoto, Toshikazu Kiyohara | 1995-05-09 |
| 4931520 | Random copolymer containing derivative of bicyclo [2.2.1] hept-2-ene compound | Hiroyuki Ozawa, Hitoshi Yuasa, Mitsuo Matsuno, Tetsuo Satoh | 1990-06-05 |
| 4433098 | Process for preparing a copolymer aqueous solution from which a catalyst residue is removed | Hiroyuki Itoh, Hirosuke Imai | 1984-02-21 |
| 4337062 | Anti-migration agent for dyeing | Hirosuke Imai, Hiroyuki Itoh | 1982-06-29 |