Assignee
Inventors
- Takeyoshi Doko (14 patents)
- Hirokazu Yamaguchi (6 patents)
- Osamu Kato (172 patents)
- Taketoshi Toyama (14 patents)
- Kouji Hirakami (2 patents)
- Akira Uchikawa (47 patents)
- Takaaki Sakane (25 patents)
- Homare Koutate (3 patents)
US Patent 6186222 · Granted Feb 13, 2001