Assignee
Inventors
- Hirohisa SASAKI (1 patents)
- Takeo Saotome (1 patents)
- Moriya Sano (1 patents)
- Kouichiro Marusugi (1 patents)
- Hiroaki Hoshino (1 patents)
- Yoshibumi Minowa (8 patents)
- Tetsuo Moriguchi (10 patents)
US Patent 4828855 · Granted May 9, 1989