Assignee
Inventors
- Akira Arisawa (6 patents)
- Motoko Matsufuji (5 patents)
- Takurou Tsuruta (3 patents)
- Kazuyuki Dobashi (9 patents)
- Takashi Nakashima (17 patents)
- Kunio Isshiki (16 patents)
- Takeo Yoshioka (40 patents)
US Patent 6143541 · Granted Nov 7, 2000