Assignee
Inventors
- Yoshio Takakura (26 patents)
- Toshiyuki Kajiwara (44 patents)
- Kenichi Yasuda (60 patents)
- Yukio Hirama (13 patents)
- Minoru Igari (2 patents)
- Takashi Norikura (10 patents)
- Hidekazu Tabata (2 patents)
- Norihito Satou (1 patents)
US Patent 6581429 · Granted Jun 24, 2003