Assignee
Inventors
- Kazumasa Fujioka (10 patents)
- Sumio Okuno (23 patents)
- Muneo Mizumoto (9 patents)
- Hideaki Kamohara (18 patents)
- Shinjiro Ueda (30 patents)
- Takao Kuroda (63 patents)
- Sumio Yamaguchi (12 patents)
- Naoyuki Tamura (63 patents)
US Patent 4580522 · Granted Apr 8, 1986