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Inventor

Tsutomu Koseki, deceased

Inventor
Tochigi, JP

Overview

2→
Patents
1999–2000
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere33%
G11BInformation storage based on relative movement between record carrier and transducer33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
PatentTitleYear
6,146,244'Substrate produced by using alumina particles as an abrasive'20005,868,604'Abrasives composition, substrate and process for producing the same, and magnetic recording medium and process for producing the same'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2000Patents assigned to KAO CORP (2)· patent assignee history
1999–2000Based in Tochigi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KAO CORP21999–2000
Locations
LocationPatentsSpan
Tochigi, JP21999–2000