Granted Patent
Utility
US 5,263,042 · App. 07/730,464
Diffusion reflector
Inventors:
Minoru Kojima, Kazuyoshi Sutoh
Patented Case
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Granted: Nov 16, 1993
Filed: Jul 16, 1991
Inventors
Minoru Kojima
Kazuyoshi Sutoh
Assignees (at issue)
Mitsui Petrochemical Industries, Ltd.
Miyachi Technos 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.