Assignee
Inventors
- Teruhiko Kumada (21 patents)
- Atsuko Sasahara (1 patents)
- Youko Tanaka (3 patents)
- Hideo Horibe (8 patents)
- Shigeru Kubota (17 patents)
- Hiroshi Koezuka (11 patents)
- Tetsuro Hanawa (10 patents)
US Patent 5981146 · Granted Nov 9, 1999