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Companies
Inventors
YS
Yasuhiro Seya
PC
Polymatech Co.
: 1 patents #43 of 84
Top 55%
Overall (All Time):
#3,418,463
of 4,157,543
Top 85%
1
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Patent #
Title
Co-Inventors
Date
7053885
Multi-directional input key and key input device
—
2006-05-30
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