Assignee
Inventors
- Yasuyoshi Yamaguchi (14 patents)
- Yasuhiko Ozawa (27 patents)
- Masataka Suzuki (69 patents)
- Akira Sato (331 patents)
- Yoshinori Asai (5 patents)
- Yoshiharu Horii (3 patents)
- Takashi Shimaoka (12 patents)
US Patent 5049940 · Granted Sep 17, 1991