Assignee
Inventors
- Kazushige Sakoh (1 patents)
- Hiroshi Arakawa (181 patents)
- Hiroyuki Yamaguchi (208 patents)
- Tatsuaki Sekigawa (12 patents)
- Toshiyasu Takasugi (4 patents)
- Shinjiro Umetsu (14 patents)
- Takehiko Tsutsumi (2 patents)
US Patent 4796024 · Granted Jan 3, 1989