Assignee
Inventors
- Ken Ishihara (24 patents)
- Hiroshi Yamamoto (819 patents)
- Mitsuru Watanabe (2 patents)
- Kaoru Asano (18 patents)
- Akio Suzuki (233 patents)
- Yasunori Maekawa (23 patents)
- Yasuhiro Kouchi (12 patents)
US Patent 5791345 · Granted Aug 11, 1998