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Inventor

Kozo Ishiyama

Inventor
Tokyo, JP

Overview

3→
Patents
1982–1984
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C08Kprimary
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients50%
C08LCompositions of macromolecular compounds33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
4,427,814'Polyphenylene ether resin composition having improved heat stability'19844,383,066'Polyphenylene ether resin composition'19834,341,879'Polyphenylene ether resin composition having improved heat stability and impact strength'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1984Patents assigned to MITSUBISHI GAS CHEMICAL CO (3)· patent assignee history
1982–1983Based in Tokyo, JP· patent location history
1984Based in Yokkaichi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI GAS CHEMICAL CO31982–1984
Locations
LocationPatentsSpan
Tokyo, JP21982–1983
Yokkaichi, JP11984