Assignee
Inventors
- Haruo Imawaka (3 patents)
- Tomoyuki Hasegawa (6 patents)
- Shigeru Sakuyama (3 patents)
- Yasufumi Kawanaka (3 patents)
- Tsutomu Akiyama (2 patents)
- Masamitsu Hoshikawa (2 patents)
- Saiko Matsuda (1 patents)
US Patent 7579375 · Granted Aug 25, 2009