Assignee
Inventors
- Toshihiko Yoshida (80 patents)
- Osamu Yamamoto (210 patents)
- Saburo Yamamoto (71 patents)
- Shohichi Kato (2 patents)
- Masumi Nakamichi (7 patents)
- Toshimasa Hamada (17 patents)
- Sadayoshi Matsui (64 patents)
US Patent 5450237 · Granted Sep 12, 1995