Assignee
Inventors
- Takashi Hisegawa (1 patents)
- Osamu Ito (245 patents)
- Nobuhito Hobo (14 patents)
- Yoshihiko Tsuzuki (24 patents)
- Yutaka Suzuki (151 patents)
- Mikio Kumano (5 patents)
- Masaharu Sumiyoshi (22 patents)
US Patent 4322800 · Granted Mar 30, 1982