Assignee
Inventors
- Shoji Kawata (34 patents)
- Toshiaki Fujii (1 patents)
- Teturyo Kusunoki (2 patents)
- Motofumi Kashiwagi (8 patents)
- Hiroshi Yagi (126 patents)
- Kazuko Koito (1 patents)
- Shinya Ikeda (43 patents)
US Patent 5376497 · Granted Dec 27, 1994