Assignee
Inventors
- Kazumasa Yokoyama (77 patents)
- Chikara Fukaya (34 patents)
- Yoshio Tsuda (17 patents)
- Taizo Ono (30 patents)
- Yoshio Arakawa (22 patents)
- Yoshihisa Inoue (86 patents)
- Youichiro Naito (17 patents)
- Tadakazu Suyama (47 patents)
US Patent 4605650 · Granted Aug 12, 1986