Assignee
Inventors
- Satoshi Takizawa (47 patents)
- Masato Koga (59 patents)
- Masatoshi Akanuma (11 patents)
- Mitsuru Watanabe (77 patents)
- Shigeki Shimanaka (41 patents)
- Hiroyasu Tanaka (226 patents)
- Junya Takayama (10 patents)
US Patent 6398691 · Granted Jun 4, 2002