Assignee
Inventors
- Hideo Sugiyama (11 patents)
- Masato Sugimachi (9 patents)
- Masato Yoshikawa (110 patents)
- Minoru Ishiharada (22 patents)
- Itsuo Tanuma (43 patents)
- Kazuo Naito (37 patents)
- Atsushi Hotta (11 patents)
US Patent 5684913 · Granted Nov 4, 1997