Assignee
Inventors
- Hiroshi Nakashima (112 patents)
- Noriaki Kitani (2 patents)
- Takao Enomoto (5 patents)
- Hiroyoshi Takagi (14 patents)
- Hikaru Mizutani (26 patents)
- Kenji Ohta (249 patents)
- Toshiyuki Toyofuku (23 patents)
US Patent 6687216 · Granted Feb 3, 2004