Inventor

Toshifumi Tamura

Inventor

Tokyo, JP

Overview

1979–1988

Patent span

Chemistry

Primary field (CPC C)

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

C08Fprimary

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds17%

G02BOptical elements, systems or apparatus17%

A61LMethods or apparatus for sterilising materials or objects in general11%

B29CShaping or joining of plastics11%

Y10TTechnical subjects covered by former us classification11%

C08BPolysaccharides6%

C09KMaterials for miscellaneous applications, not provided for elsewhere6%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light6%

H04JMultiplex communication6%

H04LTransmission of digital information, e.g. telegraphic communication6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1979–1988Patents assigned to SUMITOMO CHEMICAL CO (6)· patent assignee history

1979–1983Based in Takatsuki, JP· patent location history

1983–1985Patents assigned to TOKYO SHIBAURA ELECTRIC CO (2)· patent assignee history

1983–1987Based in Tokyo, JP· patent location history

1984Based in Otsu, JP· patent location history

1986–1987Patents assigned to TOSHIBA KK (2)· patent assignee history

1988Based in Shiga, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations