Granted Patent
Utility
US 4,465,967 · App. 06/342,791
Current supply circuit
Inventors:
Michio Tokunaga, Junjiro Kitano, Akio Sagawa, Toshio Hayashi, Kazuo Hamazato
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Jan 26, 1982
Inventors
Michio Tokunaga
Junjiro Kitano
Akio Sagawa
Toshio Hayashi
Kazuo Hamazato
Assignees (at issue)
HITACHI, 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.