Assignee
Inventors
- Kazuo Tadanobu (7 patents)
- Takuhisa Sugimoto (4 patents)
- Yukihiro Take (2 patents)
- Itsuo Kojima (2 patents)
- Kazuya Kawahara (21 patents)
- Masatoshi Tasei (8 patents)
- Masahiro Yabushita (6 patents)
US Patent 6680841 · Granted Jan 20, 2004