Assignee
Inventors
- Toshiaki Wada (53 patents)
- Mitsuhiko Furukawa (15 patents)
- Masaharu Shiroyama (11 patents)
- Mitsuyoshi Nagano (11 patents)
- Michito Miyahara (19 patents)
- Takashi Kitahira (9 patents)
- Shigeki Mohri (6 patents)
US Patent 4902651 · Granted Feb 20, 1990