Assignee
Inventors
- Shuji Kawai (22 patents)
- Kazushi Oshino (11 patents)
- Hiromi Okoshi (2 patents)
- Hajime Mori (5 patents)
- Katsuya Ozaki (20 patents)
- Shitsuw Shikata (9 patents)
- Susumu Ito (27 patents)
- Kikuhiko Okamoto (11 patents)
US Patent 4962030 · Granted Oct 9, 1990