Assignee
Inventors
- Mitsuo Sunaga (2 patents)
- Kiyoshi Sekiguchi (19 patents)
- Hisaji Shinohara (7 patents)
- Akihiro Takahashi (51 patents)
- Hiroshi Hikita (9 patents)
- Takashi Nara (69 patents)
- Sadao Sato (9 patents)
US Patent 5140114 · Granted Aug 18, 1992