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Inventor

Takeo Nishikawa

Inventor
Hino, JP

Overview

3→
Patents
1976–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds33%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry17%
B25FCombination or multi-purpose tools not otherwise provided for17%
H02KDynamo-electric machines17%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters17%
PatentTitleYear
11,052,530Electric work machine20213,966,830'Process for the nitration of halogenated benzene derivatives'19763,936,509'Process for separating dimethyl naphthalenes comprising 2,6-dimethyl naphthalenes as main component'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to TEIJIN LTD (2)· patent assignee history
1976Based in Hino, JP· patent location history
2021Patents assigned to HITACHI KOKI KK (1)· patent assignee history
2021Patents assigned to KOKI HOLDINGS CO LTD (1)· patent assignee history
2021Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TEIJIN LTD21976
HITACHI KOKI KK12021
KOKI HOLDINGS CO LTD12021
Locations
LocationPatentsSpan
Hino, JP21976
Ibaraki, JP12021