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Inventor

Itaru Sakamoto

Inventor
Ushiku, JP

Overview

3→
Patents
1987–1998
Patent span
Electricity
Primary field (CPC H)

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 transducer33%
H01BCables33%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light33%
PatentTitleYear
5,759,419'Method of manufacturing a magnetic recording medium and a semiconductor laser texturing apparatus'19985,355,384'Semiconductor laser element'19944,707,569'Multi-conductor cable'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to JAPAN STYRENE PAPER CORP (1)· patent assignee history
1987Based in Tokyo, JP· patent location history
1994Patents assigned to MITSUBISHI CHEM IND (1)· patent assignee history
1994Based in Tsuchiura, JP· patent location history
1998Patents assigned to MITSUBISHI CHEM CORP (1)· patent assignee history
1998Based in Ushiku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JAPAN STYRENE PAPER CORP11987
MITSUBISHI CHEM CORP11998
MITSUBISHI CHEM IND11994
Locations
LocationPatentsSpan
Ushiku, JP11998
Tsuchiura, JP11994
Tokyo, JP11987