Assignee
Inventors
- Hiroshi Fukumi (9 patents)
- Toshiaki Sakamoto (19 patents)
- Mitsuo Sugiyama (8 patents)
- Takeshi Yamaguchi (13 patents)
- Takeshi Oshima (16 patents)
- Fumitoshi Asai (12 patents)
- Yasuteru Iijima (16 patents)
US Patent 5470851 · Granted Nov 28, 1995