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Inventor

Tadahiro Tanaka

Inventor
Ina, JP

Overview

2→
Patents
1993–1997
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

H02Kprimary
H02KDynamo-electric machines50%
G11BInformation storage based on relative movement between record carrier and transducer25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
PatentTitleYear
5,661,352'Connector-equipped spindle motor'19975,256,922'Spindle motor'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to NIHON DENSAN KK (1)· patent assignee history
1993Patents assigned to NIHON DENSAN NAGANO KK (1)· patent assignee history
1993–1997Based in Ina, JP· patent location history
1997Patents assigned to NIDEC CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIDEC CORP11997
NIHON DENSAN KK11993
NIHON DENSAN NAGANO KK11993
Locations
LocationPatentsSpan
Ina, JP21993–1997