Assignee
Inventors
- Shuzo Matsumura (8 patents)
- Masaji Yoneta (2 patents)
- Rokuro Denda (1 patents)
- Yoshito Umeda (2 patents)
- Masao Hattori (17 patents)
- Satoshi Hagi (3 patents)
- Jun Funakoshi (28 patents)
- Akira Kosaka (49 patents)
US Patent 6921517 · Granted Jul 26, 2005