Assignee
Inventors
- Akihiro Yamanaka (104 patents)
- Kazuaki Masuda (95 patents)
- Hajime Yamamoto (229 patents)
- Eiichiro Shimizu (97 patents)
- Yasuo Kotaki (199 patents)
- Teruo Arashima (67 patents)
- Jun Hinami (29 patents)
- Wataru Takahashi (272 patents)
US Patent 6220697 · Granted Apr 24, 2001