Granted Patent
Utility
US 4,376,282 · App. 06/178,540
Optical print head with graded index fiber arrays for optical printing devices
Inventors:
Shintaro Kotani, Ichimatsu Abiko, Yukio Tokunaga, Kazuyoshi Tateishi
Patented Case
View Patent ↗
Granted: Mar 8, 1983
Filed: Aug 15, 1980
Inventors
Shintaro Kotani
Ichimatsu Abiko
Yukio Tokunaga
Kazuyoshi Tateishi
Assignees (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.