Assignee
Inventors
- Naotomi Takahashi (16 patents)
- Yoichi Babasaki (1 patents)
- Tsutomu Higuchi (20 patents)
- Osamu Nakano (29 patents)
- Hiroshi Watanabe (776 patents)
- Masaru Takahashi (180 patents)
- Makoto Dobashi (22 patents)
US Patent 6544664 · Granted Apr 8, 2003