Assignee
Inventors
- Katsuyuki Ogura (22 patents)
- Masanobu Nakamura (58 patents)
- Hiroyuki Mariko (1 patents)
- Yoshinori Shimane (3 patents)
- Ryozo Sugawara (4 patents)
- Hiroyuki Terada (9 patents)
- Kinji Shinzo (9 patents)
US Patent 6248493 · Granted Jun 19, 2001