Assignee
Inventors
- Hitoshi Takayanagi (27 patents)
- Minoru Nomura (14 patents)
- Takashi Ito (424 patents)
- Kenichi Hirabayashi (38 patents)
- Yukiko Soma (3 patents)
- Toshiro Kogawara (9 patents)
- Toyomi Hashizume (3 patents)
- Kazuo Itoya (13 patents)
US Patent 6248491 · Granted Jun 19, 2001