Assignee
Inventors
- Masaichi Yamamoto (13 patents)
- Seiichi Araki (18 patents)
- Hiroshi Yamamoto (819 patents)
- Isao Yamatsu (76 patents)
- Takeshi Suzuki (63 patents)
- Akiharu Kajiwara (22 patents)
- Yoshikazu Suzuki (96 patents)
- Haruyoshi Arai (7 patents)
US Patent 6288128 · Granted Sep 11, 2001