Assignee
Inventors
- Hiroyuki Imamura (22 patents)
- Kazuo Sakurai (24 patents)
- Keiji Tanaka (139 patents)
- Yasuro Ohishi (4 patents)
- Kiyoshi Fukatsu (3 patents)
- Motoshi Hayashi (3 patents)
- Shinya Nakamura (134 patents)
- Akira Takenaka (47 patents)
US Patent 6634875 · Granted Oct 21, 2003