Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868821 | Optical pickup which includes a single objective lens having magnification equal to or greater than 3 and equal to or smaller than 5 | Masashi Ito, Toshiki Matsuno, Hiroyuki Nakamura | 1989-09-19 |
| 4853870 | Electron beam exposure system | Nobuyuki Yasutake, Jun-ichi Kai, Kenichi Kawashima | 1989-08-01 |
| 4827999 | Polyester fiber having excellent thermal dimensional _ stability, chemical stability and high _ tenacity and process for the production thereof | Kazuyuki Yabuki, Yohji Kohmura, Mitsuo Iwasaki | 1989-05-09 |
| 4805277 | Process for producing a grid for use in lead acid batteries | Sadao Furuya, Naoto Hoshihara, Takashi Yamaguchi, Katsuhiro Takahashi, Teruaki Ishii | 1989-02-21 |
| 4801491 | Water-resistant and high-strength laminate | Toshikiyo Tanaka, Ichiro Yoshida | 1989-01-31 |