Assignee
Inventors
- Kazuo Ichikawa (38 patents)
- Shinichi Miyamoto (66 patents)
- Kenichi Miyamoto (75 patents)
- Tomoyuki Takiue (7 patents)
- Yutaka Takeo (1 patents)
- Susumu Yoshida (148 patents)
- Hisao Kanzaki (12 patents)
US Patent 6149320 · Granted Nov 21, 2000