Assignee
Inventors
- Yutaka Tokiwa (17 patents)
- Masaru Kitagawa (16 patents)
- Kenji Yoshino (41 patents)
- Shusaku Yanagidani (13 patents)
- Takao Raku (2 patents)
- Tetsuzo Totani (1 patents)
- Hiromi Shimakawa (1 patents)
US Patent 7754864 · Granted Jul 13, 2010