Assignee
Inventors
- Tadamitsu Ryu (18 patents)
- Yoshio Mogi (5 patents)
- Takanori Fukatsu (5 patents)
- Masahiko Murakawa (7 patents)
- Toshio Takahara (4 patents)
- Shingo Hirono (11 patents)
- Takashi Ohshiro (2 patents)
- Tohru Matsumoto (41 patents)
US Patent 5519861 · Granted May 21, 1996