Assignee
Inventors
- Takahiko Arakawa (12 patents)
- Kazuhiro Sakashita (27 patents)
- Satoru Kishida (11 patents)
- Toshiaki Hanibuchi (17 patents)
- Ichiro Tomioka (14 patents)
- Masahiro Ueda (119 patents)
- Yoshihiro Okuno (10 patents)
US Patent 4992845 · Granted Feb 12, 1991