Assignee
Inventors
- Yasuhiro Hanaue (5 patents)
- Etsuji Kimua (1 patents)
- Takuo Takeshita (33 patents)
- Kouichi Ishiyama (13 patents)
- Masashi Nagao (21 patents)
- Takashi Inaguchi (28 patents)
- Hideto Yoshimura (24 patents)
US Patent 5207981 · Granted May 4, 1993