Granted Patent
Utility
US 4,544,972 · App. 06/400,148
Swinging actuators for use in magnetic disc type memory devices
Inventors:
Kenji Kogure, Takao Kakizaki, Yasunaga Mitsuya, Shigemitsu Oguchi, Koji Otani
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Jul 20, 1982
Inventors
Kenji Kogure
Takao Kakizaki
Yasunaga Mitsuya
Shigemitsu Oguchi
Koji Otani
Assignee (at issue)
Nippon Telegraph and Telephone Public Corporation
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.