Assignee
Inventors
- Hiroyuki Sugata (33 patents)
- Kouhei Nakata (1 patents)
- Nobutoshi Mizusawa (43 patents)
- Satoshi Yuasa (45 patents)
- Masahiro Haruta (96 patents)
- Takashi Hamamoto (20 patents)
- Kuniji Osabe (9 patents)
US Patent 4798694 · Granted Jan 17, 1989