Inventor

Kazushi Miura

Inventor

Nagano, JP

Overview

2000–2014

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 17 as inventor

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

F16Cprimary

F16CShafts36%

H02KDynamo-electric machines33%

G11BInformation storage based on relative movement between record carrier and transducer24%

Y10TTechnical subjects covered by former us classification7%

PatentTitleYear

8,675,304'Disk drive spindle motor with hole volume and component density relationship'2014 8,567,067'Method of manufacturing fluid dynamic bearing mechanism, motor, and storage disk drive'2013 8,553,355'Spindle motor and storage disk drive'2013 8,542,459'Spindle motor and storage disk drive'2013 8,416,524'Spindle motor having connecting mechanism connecting lead wire and circuit board, and storage disk drive having the same'2013 8,385,017'Spindle motor including fluid bearing and storage disk drive including the same'2013 7,550,883'Rotor hub, spindle motor, and recording disk driving apparatus'2009 6,837,622'Dynamic pressure bearing apparatus'2005 6,793,394'Hydrodynamic bearing device'2004 6,698,097'Method for manufacturing a tool that is used to form dynamic pressure generating grooves in dynamic pressure bearing devices'2004 6,663,287'Thrust dynamic pressure bearing apparatus and method for manufacturing the same'2003 6,378,209'Method of producing fluid bearing device'2002 6,375,357'Spindle motor'2002 6,343,877'Spindle motor'2002 6,341,896'Hydrodynamic bearing and method of manufacturing the same'2002 6,296,391'Hydrodynamic bearing apparatus'2001 6,147,424'Gas dynamic pressure bearing apparatus'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2005Patents assigned to SANKYO SEIKI SEISAKUSHO KK (10)· patent assignee history

2000–2005Based in Nagano, JP· patent location history

2009–2014Patents assigned to NIDEC CORP (7)· patent assignee history

2009–2014Based in Kyoto, JP· patent location history

2013–2014Patents assigned to MIURA KAZUSHI (4)· patent assignee history

2013–2014Patents assigned to TAMAOKA TAKEHITO (4)· patent assignee history

2013–2014Patents assigned to TAKEMOTO MITSUHIRO (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SANKYO SEIKI SEISAKUSHO KK	10	2000–2005
NIDEC CORP	7	2009–2014
MIURA KAZUSHIself	4	2013–2014
TAMAOKA TAKEHITO	4	2013–2014
TAKEMOTO MITSUHIRO	3	2013–2014

Locations

Location	Patents	Span
Nagano, JP	10	2000–2005
Kyoto, JP	7	2009–2014