Assignee
Inventors
- Masahiro Fukuta (15 patents)
- Osamu Komazawa (14 patents)
- Tsukasa Watanabe (50 patents)
- Hiroyuki Ikemoto (22 patents)
- Toshio Onuma (37 patents)
- Shinji Matsuda (22 patents)
- Kunihito Sato (34 patents)
US Patent 5031663 · Granted Jul 16, 1991