Assignee
Inventors
- Keiji Sakai (48 patents)
- Takahiro Miyake (34 patents)
- Tetsuo Ueyama (24 patents)
- Renzaburo Miki (8 patents)
- Hiroshige Makioka (1 patents)
- Noboru Fujita (13 patents)
- Osamu Miyazaki (76 patents)
US Patent 7315502 · Granted Jan 1, 2008