Assignee
Inventors
- Hirokazu Takagi (43 patents)
- Yoshikata Kobayashi (18 patents)
- Fumio Nakajima (28 patents)
- Tsutomu Tanaka (340 patents)
- Masaharu Shimizu (34 patents)
- Akio Kobayashi (136 patents)
- Hiroshi Furuta (59 patents)
US Patent 6649853 · Granted Nov 18, 2003