Assignee
Inventors
- Shinji Hamai (19 patents)
- Masazumi Yamada (60 patents)
- Tatsuro Juri (118 patents)
- Masakazu Nishino (64 patents)
- Shiro Kato (29 patents)
- Akira Iketani (47 patents)
- Chiyoko Matsumi (50 patents)
US Patent 6031959 · Granted Feb 29, 2000