Assignee
Inventors
- Hajime Aoi (32 patents)
- Toshiaki Tsuyoshi (35 patents)
- Makoto Koizumi (49 patents)
- Nobumasa Nishiyama (47 patents)
- Yoshibumi Matsuda (48 patents)
- Takuji Ogawa (21 patents)
- Kazuhisa Shiraishi (11 patents)
US Patent 6069762 · Granted May 30, 2000