Assignee
Inventors
- Kiyoshi Morikawa (26 patents)
- Yoshihumi Nakayama (3 patents)
- Jun Togashi (17 patents)
- Hiroshi Akiyama (106 patents)
- Nobuo Ishida (10 patents)
- Tomomichi Kimura (22 patents)
- Tatsuya Yanagisawa (17 patents)
- Takashi Ota (115 patents)
US Patent 5991246 · Granted Nov 23, 1999