Assignee
Inventors
- Madoka Mitsuoka (12 patents)
- Hiroyasu Sugano (30 patents)
- Youji Kohda (20 patents)
- Koji Otani (21 patents)
- Naohisa Kawaguchi (16 patents)
- Akinori Iwakawa (25 patents)
- Takashi Ohno (133 patents)
US Patent 6671508 · Granted Dec 30, 2003