Assignee
Inventors
- Tsuyoshi Kawabe (13 patents)
- Nobuaki Yamamoto (3 patents)
- Tadayoshi Hayashi (17 patents)
- Makoto Tanio (3 patents)
- Ichiro Iwai (22 patents)
- Ichizo Tsukuda (11 patents)
- Ryotatsu Otsuka (17 patents)
US Patent 5302342 · Granted Apr 12, 1994