Assignee
Inventors
- Kazuma Shimizu (13 patents)
- Ryozo Yanagisawa (54 patents)
- Yoshikazu Sasago (37 patents)
- Yoshiyuki Batori (62 patents)
- Masanari Morioka (121 patents)
- Hiroshi Takarada (44 patents)
- Katsushi Koike (2 patents)
US Patent 6917842 · Granted Jul 12, 2005