Assignee
Inventors
- Shotaro Okabe (31 patents)
- Yasushi Fujioka (59 patents)
- Masahiro Kanai (191 patents)
- Akira Sakai (244 patents)
- Tadashi Sawayama (21 patents)
- Yuzo Kohda (14 patents)
- Tadashi Hori (28 patents)
- Takahiro Yajima (39 patents)
US Patent 6368944 · Granted Apr 9, 2002