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Inventor

Masao Tezuka

Inventor
Hitachi, JP

Overview

3→
Patents
1981–1988
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.

C01Gprimary
C01GCompounds containing metals not covered by subclasses c01d or c01f17%
C09KMaterials for miscellaneous applications, not provided for elsewhere17%
C22BProduction and refining of metals17%
H02KDynamo-electric machines17%
Y02PClimate change mitigation technologies in the production or processing of goods17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
4,782,316'Core winding with inorganic insulation between the inner conductor and outer metal sheath'19884,446,115'Method of recovering tantalum from silicon-containing tantalum scrap'19844,287,229'Method for surface treatment of phosphor particles'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1984Patents assigned to TOKYO SHIBAURA ELECTRIC CO (2)· patent assignee history
1981Based in Tokyo, JP· patent location history
1984Based in Yokohama, JP· patent location history
1988Patents assigned to SUKEGAWA ELEC (1)· patent assignee history
1988Based in Hitachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKYO SHIBAURA ELECTRIC CO21981–1984
SUKEGAWA ELEC11988
Locations
LocationPatentsSpan
Hitachi, JP11988
Yokohama, JP11984
Tokyo, JP11981