Assignee
Inventors
- Mitsuo Nakagawa (29 patents)
- Yukio Saito (50 patents)
- Junji Sakai (34 patents)
- Osamu Shitamura (3 patents)
- Yasutsugu Yoshimura (29 patents)
- Yoshio Takakura (26 patents)
- Hironori Shimogama (7 patents)
- Takehisa Kimura (5 patents)
US Patent 6315830 · Granted Nov 13, 2001