Assignee
Inventors
- Masatake Kawashima (3 patents)
- Takashi Ogawa (237 patents)
- Kazuhiro Terada (23 patents)
- Hiroyuki Okayama (1 patents)
- Katsushi Sugiyama (10 patents)
- Kazuo Hosoda (16 patents)
- Masafumi Moriya (20 patents)
US Patent 6137027 · Granted Oct 24, 2000