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Inventor

Tsuneo Yoshida

Inventor
Nagaoka, JP

Overview

2→
Patents
1988–1989
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.

C07Cprimary
C07CAcyclic or carbocyclic compounds33%
C09KMaterials for miscellaneous applications, not provided for elsewhere33%
D21HPulp compositions33%
PatentTitleYear
4,810,301'Composition for sizing agent and process for using the same composition'19894,717,452'Composition for sizing agent and process for using the same composition'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1989Patents assigned to HOKUETSU PAPER MILLS (2)· patent assignee history
1988–1989Patents assigned to NIPPON OIL CO LTD (2)· patent assignee history
1988–1989Patents assigned to SEIKO KAGAKU KOGYO CO LTD (2)· patent assignee history
1988–1989Based in Nagaoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HOKUETSU PAPER MILLS21988–1989
NIPPON OIL CO LTD21988–1989
SEIKO KAGAKU KOGYO CO LTD21988–1989
Locations
LocationPatentsSpan
Nagaoka, JP21988–1989