Assignee
Inventors
- Masao Watari (31 patents)
- Kazuo Ishii (159 patents)
- Yasuhiko Kato (56 patents)
- Hiroaki Ogawa (76 patents)
- Masanori Omote (31 patents)
- Kazuo Watanabe (228 patents)
- Katsuki Minamino (36 patents)
US Patent 5704013 · Granted Dec 30, 1997