Granted Patent
Utility
US 4,270,116 · App. 06/069,347
High speed data logical comparison device
Inventors:
Yoshichika Ichimiya, Tsuneta Sudo, Hiromi Maruyama, Shigeru Sugamori, Susumu Sumida, Masao Shimizu, Toshiaki Wakita
Patented Case
View Patent ↗
Granted: May 26, 1981
Filed: Aug 24, 1979
Inventors
Yoshichika Ichimiya
Tsuneta Sudo
Hiromi Maruyama
Shigeru Sugamori
Susumu Sumida
Masao Shimizu
Toshiaki Wakita
Assignees (at issue)
Nippon Telegraph and Telephone Public Corporation
Takeda Riken Kogyo Kabushikikaisha
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.