Assignee
Inventors
- Yukinori Ozato (4 patents)
- Nobuhiko Tamura (24 patents)
- Hiroaki Masumori (5 patents)
- Michihiro Yamamoto (13 patents)
- Atsuyuki Kojima (16 patents)
- Fumio Nishikaku (4 patents)
- Yoshihiko Kimura (4 patents)
US Patent 4914112 · Granted Apr 3, 1990