Assignee
Inventors
- Eiichi Kamiyama (41 patents)
- Tatehito Ueda (15 patents)
- Toshio Itoh (38 patents)
- Hiroshi Tada (52 patents)
- Hideo Nagaosa (26 patents)
- Shinichi Sano (23 patents)
- Katsuhiko Aoyama (4 patents)
- Tetsu Yamada (10 patents)
US Patent 5687690 · Granted Nov 18, 1997