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Inventor

Masaaki Utsui

Inventor
Kanagawa, JP

Overview

4→
Patents
1978–1989
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 transducer33%
Y10TTechnical subjects covered by former us classification33%
B23DPlaning11%
B23PMetal-working not otherwise provided for11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
4,840,818'Method of making magnetic recording medium'19894,761,874'Method of making magnetic recording medium'19884,716,650'Method of assembling magnetic recording disk cartridge'19884,103,575'Synchronous web cutting apparatus'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1989Patents assigned to FUJI PHOTO FILM CO LTD (4)· patent assignee history
1978Based in Minami-ashigara, JP· patent location history
1988–1989Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI PHOTO FILM CO LTD41978–1989
Locations
LocationPatentsSpan
Kanagawa, JP31988–1989
Minami-ashigara, JP11978