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Yosei Yoshikawa

Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
📍 Touon, JP: #8 of 34 inventorsTop 25%
Overall (All Time): #1,024,097 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7675210 Hydrodynamic bearing and method for manufacturing the same, and spindle motor and method for manufacturing the same Kazunori Maekawa, Naoshi Kainoh, Junichi Nakamura, Akihito Shirai 2010-03-09
7513688 Hydrodynamic bearing device and inspection method of amount of working fluid Kaoru Uenosono 2009-04-07
7371010 Hydrodynamic bearing device and compact motor including hydrodynamic bearing device Kaoru Uenosono 2008-05-13
7350975 Hydrodynamic bearing device and spindle motor Kaoru Uenosono 2008-04-01
7241050 Hydrodynamic bearing device Kaoru Uenosono, Akira Sakata, Takafumi Asada 2007-07-10