Assignee
Inventors
- Yoshio Akiyama (14 patents)
- Shuichi Koshio (9 patents)
- Masashi Yoneyama (12 patents)
- Hiroaki Tokuda (16 patents)
- Shoji Tanabe (7 patents)
- Shigeru Tomiyama (12 patents)
- Shigeru Yoneyama (4 patents)
US Patent 7748553 · Granted Jul 6, 2010