Assignee
Inventors
- Yukiyoshi Inayama (1 patents)
- Akio Sorimachi (1 patents)
- Tomohiro Sugizaki (4 patents)
- Shinichi Goto (37 patents)
- Kouichi Satou (16 patents)
- Masatoshi Nagata (3 patents)
- Takuji Nagata (13 patents)
US Patent 4833847 · Granted May 30, 1989