Assignee
Inventors
- Osamu Fukui (13 patents)
- Kiyoshi Tsutsui (3 patents)
- Tomohiko Akagawa (20 patents)
- Ikunori Sakai (21 patents)
- Takao Nomura (58 patents)
- Takeyoshi Nishio (42 patents)
- Toshio Yokoi (8 patents)
- Nobuya Kawamura (10 patents)
US Patent 5091462 · Granted Feb 25, 1992