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Inventor

Yosei Yoshikawa

Inventor
Touon-shi, JP

Overview

5→
Patents
2007–2010
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F16Cprimary
F16CShafts63%
H02KDynamo-electric machines25%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
7,675,210'Hydrodynamic bearing and method for manufacturing the same, and spindle motor and method for manufacturing the same'20107,513,688'Hydrodynamic bearing device and inspection method of amount of working fluid'20097,371,010'Hydrodynamic bearing device and compact motor including hydrodynamic bearing device'20087,350,975'Hydrodynamic bearing device and spindle motor'20087,241,050'Hydrodynamic bearing device'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history
2007–2009Based in Touon-shi, JP· patent location history
2008Based in Toon, JP· patent location history
2009–2010Patents assigned to PANASONIC CORP (2)· patent assignee history
2010Based in Tohon, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32007–2008
PANASONIC CORP22009–2010
Locations
LocationPatentsSpan
Touon-shi, JP32007–2009
Tohon, JP12010
Toon, JP12008