Assignee
Inventors
- Makoto Iwahara (17 patents)
- Tadayoshi Miyoshi (19 patents)
- Shigeaki Tada (5 patents)
- Takashi Kuriyama (56 patents)
- Itsuo Takanashi (121 patents)
- Ichiro Shishido (47 patents)
- Kaoru Kitami (6 patents)
US Patent 5140443 · Granted Aug 18, 1992