Assignee
Inventors
- Yoshitaka Akiyama (25 patents)
- Takuji Torii (17 patents)
- Nobuhiro Noto (12 patents)
- Kazuaki Akimoto (11 patents)
- Kazuo Shimizu (77 patents)
- Shigenori Suematsu (15 patents)
- Kenichi Kugai (15 patents)
US Patent 6378972 · Granted Apr 30, 2002