Assignee
Inventors
- Shigehiro Kataoka (30 patents)
- Akio Obata (10 patents)
- Jun Yamakoshi (6 patents)
- Yukihiko Iwai (4 patents)
- Tatuo Manaka (4 patents)
- Toru Izumi (8 patents)
- Koichiro Tobe (7 patents)
- Nobuyuki Yamaji (17 patents)
US Patent 6051234 · Granted Apr 18, 2000