Assignee
Inventors
- Keizo Sugasawa (15 patents)
- Susumu Watanuki (10 patents)
- Yuji Koga (16 patents)
- Hiroshi Nagata (12 patents)
- Ryutaro Wakayama (7 patents)
- Fukushi Hirayama (17 patents)
- Ken Suzuki (85 patents)
US Patent 8338429 · Granted Dec 25, 2012