Inventor

Fumio Arai

Inventor

Numazu, JP

Overview

1977–1994

Patent span

Chemistry

Primary field (CPC C)

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

C03Bprimary

C03BManufacture, shaping, or supplementary processes27%

F01LCyclically operating valves for machines or engines18%

B01DSeparation9%

C01BNon-metallic elements9%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients9%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments9%

Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]9%

Y02PClimate change mitigation technologies in the production or processing of goods9%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to SHOWA DENKO KK (1)· patent assignee history

1977Based in Machida, JP· patent location history

1983–1989Patents assigned to AISIN SEIKI (2)· patent assignee history

1983–1989Based in Kariya, JP· patent location history

1988Patents assigned to TOYO SODA MFG CO LTD (1)· patent assignee history

1988Based in Toyama, JP· patent location history

1993Patents assigned to SUMITOMO SEIKA CHEMICALS (1)· patent assignee history

1993Based in Tokyo, JP· patent location history

1994Patents assigned to TOSHIBA MACHINE CO LTD (3)· patent assignee history

1994Based in Numazu, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations