Granted Patent
Utility
US 6,387,549 · App. 09/342,188
Magnetic sensor
Inventors:
Takeshi Obata, Takashi Manako, Yuichi Shimakawa
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Jun 29, 1999
Inventors
Takeshi Obata
Takashi Manako
Yuichi Shimakawa
Assignee (at issue)
NEC 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.