Assignee
Inventors
- Yoshinori Ichishi (29 patents)
- Takayoshi Kawai (59 patents)
- Katsuhiko Samukawa (28 patents)
- Toshifumi Kamiya (23 patents)
- Yuichi Kajino (22 patents)
- Akira Ohga (10 patents)
- Hikaru Sugi (60 patents)
US Patent 6347987 · Granted Feb 19, 2002