Assignee
Inventors
- Takashi Nakahara (42 patents)
- Shunichi Masuda (42 patents)
- Toshio Yoshimoto (15 patents)
- Kenjiro Hori (29 patents)
- Satoshi Akiyama (43 patents)
- Yoshimi Kuramochi (8 patents)
- Yasuhiro Nakata (26 patents)
US Patent 5229818 · Granted Jul 20, 1993