Assignee
Inventors
- Makoto Tanikawa (14 patents)
- Takahiro Ishigami (2 patents)
- Yoshihiko Kikkawa (2 patents)
- Hitoshi Tanifuji (3 patents)
- Yoshihiro Iwasaki (4 patents)
- Hiroaki Suzuki (335 patents)
- Isao Kawasaki (8 patents)
- Ichiro Minejima (1 patents)
US Patent 6687139 · Granted Feb 3, 2004