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Inventor

Toshitada Shigemura

Inventor
Yamaguchi, JP

Overview

3→
Patents
1994–1999
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer38%
Y10TTechnical subjects covered by former us classification38%
H01FMagnets25%
PatentTitleYear
5,968,405'Cobalt-coated acicular magnetic iron oxide particles'19995,648,014'Acicular magnetic iron oxide particles and process for producing the same'19975,294,492'Acicular magnetic iron oxide particles'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–1999Patents assigned to TODA KOGYO CORP (3)· patent assignee history
1994Based in Ube, JP· patent location history
1997–1999Based in Yamaguchi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TODA KOGYO CORP31994–1999
Locations
LocationPatentsSpan
Yamaguchi, JP21997–1999
Ube, JP11994