Assignee
Inventors
- Takeshi Saika (4 patents)
- Shuji Senda (31 patents)
- Yoshitaka Kazuse (8 patents)
- Akio Iwama (13 patents)
- Tetsuji Sugii (3 patents)
- Masao Nasu (1 patents)
- Katsuji Tani (1 patents)
- Nobuyasu Yamaguchi (47 patents)
US Patent 6203900 · Granted Mar 20, 2001