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Inventor

Eiichiro Imaoka

Inventor
Sagamihara, JP

Overview

4→
Patents
1988–1989
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 4 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 transducer36%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests36%
Y10TTechnical subjects covered by former us classification27%
PatentTitleYear
4,798,765'Perpendicular magnetic recording medium'19894,792,486'Perpendicular magnetic recording medium'19884,745,510'Perpendicular magnetic recording and reproducing system'19884,731,300'Perpendicular magnetic recording medium and manufacturing method thereof'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1989Patents assigned to VICTOR COMPANY OF JAPAN (4)· patent assignee history
1988–1989Based in Sagamihara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
VICTOR COMPANY OF JAPAN41988–1989
Locations
LocationPatentsSpan
Sagamihara, JP41988–1989