Assignee
Inventors
- Yasushi Igarashi (20 patents)
- Takuji Yamaguchi (16 patents)
- Yoshimitsu Ogawa (3 patents)
- Mika Tomita (3 patents)
- Hiroko Hayashi (41 patents)
- Toshitsugu Sato (3 patents)
- Kunio Hosaka (16 patents)
US Patent 5675023 · Granted Oct 7, 1997