Assignee
Inventors
- Masaru Nakagawa (40 patents)
- Koki Hirano (46 patents)
- Yutaka Obata (17 patents)
- Yasuhisa Sugita (6 patents)
- Takao Nomura (58 patents)
- Masatoshi Matsuda (12 patents)
- Hisayuki Iwai (15 patents)
- Takayuki Nagai (110 patents)
US Patent 6667359 · Granted Dec 23, 2003