Inventor

Hirokazu Norma

Inventor

Ibaraki, JP

Overview

1→

Patents

1981

Patent span

Performing operations

Primary field (CPC B)

Patents· 1 as inventor

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

B29Cprimary

B29CShaping or joining of plastics20%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts20%

B29LIndexing scheme associated with subclass b29c, relating to particular articles20%

G11BInformation storage based on relative movement between record carrier and transducer20%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%

PatentTitleYear

4,307,045'Method for the improvement of a gramophone record'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to SHINETSU CHEMICAL CO (1)· patent assignee history

1981Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SHINETSU CHEMICAL CO	1	1981

Locations

Location	Patents	Span
Ibaraki, JP	1	1981