Assignee
Inventors
- Yoshio Serikawa (9 patents)
- Susumu Iguchi (12 patents)
- Akira Ueno (91 patents)
- Hiroshi Takeda (127 patents)
- Shigeru Mitsu (2 patents)
- Kenji Koyama (48 patents)
- Yukihisa Narazaki (1 patents)
- Yoshihiko Shimura (2 patents)
US Patent 5148212 · Granted Sep 15, 1992