Granted Patent
Utility
US 6,693,565 · App. 10/371,929
Position transducer
Inventors:
Masaaki Kusumi, Michio Okano, Shigeru Ishimoto, Mitsuru Ohno, Yasuo Nekado
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Feb 21, 2003
Inventors
Masaaki Kusumi
Michio Okano
Shigeru Ishimoto
Mitsuru Ohno
Yasuo Nekado
Assignee (at issue)
Sony Precision Technology Inc.
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.