HS

Hidetaka Sugawara

RG Rakuten Group: 1 patents #217 of 553Top 40%
Overall (All Time): #2,999,896 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9338120 E-mail system, control method for e-mail system, relay device, program, and information storage medium Naohiro Yanase, Akihiro Kato, Ryohei Shimada 2016-05-10