Assignee
Inventors
- Kaoru Chujo (17 patents)
- Naoji Fujino (9 patents)
- Toshiaki Nobumoto (6 patents)
- Tomonobu Takashima (14 patents)
- Noboru Kobayashi (140 patents)
- Miki Murakawa (2 patents)
- Toshiyuki Ohta (19 patents)
US Patent 6226768 · Granted May 1, 2001