Assignee
Inventors
- Tetuya Torikai (4 patents)
- Yukihiro Morimoto (19 patents)
- Toyohiko Kumada (17 patents)
- Yukiharu Tagawa (19 patents)
- Kenzo Kai (6 patents)
- Hiroshi Sugahara (33 patents)
- Shigenori Nozawa (20 patents)
US Patent 6375533 · Granted Apr 23, 2002