Assignee
Inventors
- Masaaki Nanaumi (16 patents)
- Hiroshi Takeshita (26 patents)
- Norihiro Ohta (4 patents)
- Noriko OHTA (1 patents)
- Yoshikazu Fujisawa (30 patents)
- Yoichi Asano (27 patents)
- Yoshiaki Takagi (36 patents)
US Patent 5965802 · Granted Oct 12, 1999