Assignee
Inventors
- Toru Hayakawa (17 patents)
- Toshiki Yoshimine (2 patents)
- Hiromu Yamamoto (1 patents)
- Akira SATO (1 patents)
- Tsunemasa Irie (3 patents)
- Keiji Fujioka (23 patents)
- Yoshihiro Takada (13 patents)
- Yoshio Sasaki (96 patents)
US Patent 5800390 · Granted Sep 1, 1998