Assignee
Inventors
- Takanori Hasegawa (58 patents)
- Nobuyuki Abe (11 patents)
- Toru Hibara (2 patents)
- Toshihiko Hirose (27 patents)
- Takashi Kanda (67 patents)
- Hiroshi Saito (382 patents)
- Masaki Oshima (25 patents)
- Eiji Nakazawa (28 patents)
US Patent 5010420 · Granted Apr 23, 1991