Assignee
Inventors
- Mamoru Ogawa (13 patents)
- Toshio Nishimura (82 patents)
- Toshiyuki Baba (25 patents)
- Jiro Inoue (105 patents)
- Shigemasa Kusabiraki (11 patents)
- Tetsuo Takeshima (30 patents)
- Takeshi Yamazaki (187 patents)
US Patent 6028390 · Granted Feb 22, 2000