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Inventor

Tomoki Muraoka

Inventor
Fujisawa, JP

Overview

5→
Patents
1989–2000
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

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

C22Cprimary
C22CAlloys33%
F16CShafts33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests27%
Y10TTechnical subjects covered by former us classification7%
PatentTitleYear
6,063,218'Bearing manufacturing method'20005,542,991'Rail for a linear motion guide bearing'19965,077,003'Rolling-part steel and rolling part employing same'19915,013,525'Steel for corrosion-resistant rolling part and rolling part'19914,871,268'Rolling bearing'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Patents assigned to NIPPON SEIKO KK (3)· patent assignee history
1989–1991Based in Fujisawa, JP· patent location history
1991–1996Patents assigned to SANYO SPECIAL STEEL CO LTD (2)· patent assignee history
1996–2000Patents assigned to NSK LTD (2)· patent assignee history
1996–2000Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON SEIKO KK31989–1991
NSK LTD21996–2000
SANYO SPECIAL STEEL CO LTD21991–1996
Locations
LocationPatentsSpan
Fujisawa, JP31989–1991
Kanagawa, JP21996–2000