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Inventor

Toshio Ohkawa

Inventor
Kawasaki, JP

Overview

5→
Patents
1976–2005
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

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

B22Fprimary
B22FWorking metallic powder20%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients20%
C08LCompositions of macromolecular compounds20%
Y10TTechnical subjects covered by former us classification20%
C08JWorking-up10%
C22CAlloys10%
PatentTitleYear
6,949,606'Crosslinkable rubber composition'20056,699,936'Rubber composition for hose and hose'20044,552,719'Method of sintering stainless steel powder'19854,283,465'Porous body of aluminum or its alloy and a manufacturing method thereof'19813,940,548'Surface treatment of rubber articles with an alkyl hypohalite'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to NIPPON ZLIN CO LTD (1)· patent assignee history
1976Based in Yokohama, JP· patent location history
1981Patents assigned to NIPPON DIA CLEVITE CO (1)· patent assignee history
1981–1985Based in Narashino, JP· patent location history
1985Patents assigned to N D C CO LTD (1)· patent assignee history
2004–2005Patents assigned to ZEON CORP (2)· patent assignee history
2004–2005Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ZEON CORP22004–2005
N D C CO LTD11985
NIPPON DIA CLEVITE CO11981
NIPPON ZLIN CO LTD11976
Locations
LocationPatentsSpan
Kawasaki, JP22004–2005
Narashino, JP21981–1985
Yokohama, JP11976