Assignee
Inventors
- Toyomi Hashizume (3 patents)
- Shoji Okuno (1 patents)
- Yukiko Soma (3 patents)
- Hitoshi Takayanagi (27 patents)
- Minoru Nomura (14 patents)
- Takashi Ito (424 patents)
- Hiroyuki Ohminato (2 patents)
US Patent 6017670 · Granted Jan 25, 2000