Inventor

YOSHIKAWA YOSEI

JP5 patents

⚠️ This page may combine multiple inventors who share the name “YOSHIKAWA YOSEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

3 patents

US7241050B2Jul 10, 2007

Hydrodynamic bearing device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations91

US7371010B2May 13, 2008

Hydrodynamic bearing device and compact motor including hydrodynamic bearing device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations60

US7350975B2Apr 1, 2008

Hydrodynamic bearing device and spindle motor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations60

PANASONIC CORP

2 patents

US7675210B2Mar 9, 2010

Hydrodynamic bearing and method for manufacturing the same, and spindle motor and method for manufacturing the same

PANASONIC CORP16 citations81

US7513688B2Apr 7, 2009

Hydrodynamic bearing device and inspection method of amount of working fluid

PANASONIC CORP11 citations81