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Inventor

Nobufumi Watanabe

Inventor
Niihama, JP

Overview

3→
Patents
2010–2019
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.

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry30%
C01BNon-metallic elements20%
C07CAcyclic or carbocyclic compounds20%
C07DHeterocyclic compounds10%
C12CBeer10%
Y02PClimate change mitigation technologies in the production or processing of goods10%
PatentTitleYear
10,457,636Production method of [?]-caprolactam20197,923,583'Method for producing cycloalkanol and/or cycloalkanone'20117,692,044'Process for producing cycloalkanol and/or cycloalkanone'2010

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010–2019Patents assigned to SUMITOMO CHEMICAL CO (3)· patent assignee history
2010–2011Based in Niihama, JP· patent location history
2019Based in Tsukuba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO CHEMICAL CO32010–2019
Locations
LocationPatentsSpan
Niihama, JP22010–2011
Tsukuba, JP12019