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Hideki Kumagai
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus for automatically separating and detecting noise radio waves
Patent number
8,249,516
Issue date
Aug 21, 2012
Hideki Kumagai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System for evaluating skills of to-be-examined person
Patent number
8,057,237
Issue date
Nov 15, 2011
Shinko Engineering Research Corp.
Takasi Kumagai
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Experiment and education system employing a plurality of units
Patent number
7,963,771
Issue date
Jun 21, 2011
Shinko Engineering Reseach Corp.
Takasi Kumagai
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
APPARATUS FOR AUTOMATICALLY SEPARATING AND DETECTING NOISE RADIO WAVES
Publication number
20120007671
Publication date
Jan 12, 2012
Hideki Kumagai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Experiment and education system employing a plurality of units
Publication number
20090092956
Publication date
Apr 9, 2009
Takasi Kumagai
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
System for evaluating skills of to-be-examined person
Publication number
20060085224
Publication date
Apr 20, 2006
Takasi Kumagai
G06 - COMPUTING CALCULATING COUNTING