Assignee
Inventors
- Takashi Nakajima (137 patents)
- Naotaka Tanaka (46 patents)
- Yasuyuki Nakajima (42 patents)
- Ryo Haruta (23 patents)
- Tomoo Matsuzawa (8 patents)
- Masashi Sahara (34 patents)
- Ken Okutani (5 patents)
US Patent 6897570 · Granted May 24, 2005