Assignee
Inventors
- Shigeo Ohashi (79 patents)
- Tadakatsu Nakajima (50 patents)
- Yoshihiro Kondo (48 patents)
- Mitsuru Honma (3 patents)
- Kenji Onishi (26 patents)
- Hiroshi Tsuzaki (1 patents)
- Hitoshi Matsushima (70 patents)
US Patent 5694294 · Granted Dec 2, 1997