Assignee
Inventors
- Akihiko Nanba (6 patents)
- Chisato Yoshida (24 patents)
- Takaharu Moriya (4 patents)
- Naotsugu Yoshida (9 patents)
- Yasuyuki Murata (40 patents)
- Kazutoshi Hironaka (2 patents)
- Mineo Muraki (23 patents)
- Ujihiro Nishiike (11 patents)
US Patent 5697425 · Granted Dec 16, 1997