Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885503 | Color cathode-ray tube | Eiki Takahashi, Masahiro Miyazaki | 1989-12-05 |
| 4884182 | Current source power converting apparatus with overvoltage protection | Takeki Ando, Toshisuke Mine, Hiromi Inaba, Toshiaki Kurosawa, Masao Nakazato +1 more | 1989-11-28 |
| 4872532 | Signal transmission method and system in elevator equipment | Toshimitsu Tobita, Hiromi Inaba, Masachika Yamazaki, Masato Suzuki, Yuzo Morita +2 more | 1989-10-10 |
| 4873208 | Holder for sealing member | Mitsuhiro Nagata, Tadashi Hayashi, Yoshinobu Hashimoto | 1989-10-10 |
| 4799161 | Control apparatus for maintaining traction in electric rolling stock | Tetsuji Hirotsu, Syoji Kasai, Hiroshi Yamaguchi, Eiji Kozu | 1989-01-17 |