Assignee
Inventors
- Takeo Ito (58 patents)
- Hajime Tanaka (55 patents)
- Tomoko Nakazawa (11 patents)
- Taichiro Nakayama (4 patents)
- Takaaki Shinohara (4 patents)
- Yoichiro Nakayama (3 patents)
- Kazuo Sakai (79 patents)
US Patent 7157843 · Granted Jan 2, 2007