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Inventor

Masaji Hirota

Inventor
Ibaraki, JP

Overview

10→
Patents
2006–2019
Patent span
Chemistry
Primary field (CPC C)

Patents· 10 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds56%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry19%
C07DHeterocyclic compounds19%
C07BGeneral methods of organic chemistry6%
PatentTitleYear
10,457,632Production method for isocyanate compound201910,053,419Isocyanate compound manufacturing method20188,937,200'Method for producing 2-(aryloxymethyl) benzaldehyde compound'20158,624,062'Method for producing phenylacetamide compound'20148,338,625'Process for production of benzaldehyde compound'20128,309,752'Process for production of mandelonitrile compound'20128,299,288'Method for producing α-hydroxyester compound'20127,880,038'Metal catalyst and its use'20117,491,845'Process for producing adipic acid'20097,074,947'Process for producing epoxide compound'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2019Patents assigned to SUMITOMO CHEMICAL CO (10)· patent assignee history
2006–2011Based in Niihama, JP· patent location history
2012–2015Patents assigned to HIROTA MASAJI (5)· patent assignee history
2012–2014Patents assigned to ISHIDA HAJIME (3)· patent assignee history
2012–2015Patents assigned to ONOGAWA YOSHIO (2)· patent assignee history
2012–2014Based in Ibaraki, JP· patent location history
2014Patents assigned to MIYANAGA YOKO (1)· patent assignee history
2015–2018Based in Osaka, JP· patent location history
2019Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO CHEMICAL CO102006–2019
HIROTA MASAJIself52012–2015
ISHIDA HAJIME32012–2014
ONOGAWA YOSHIO22012–2015
MIYANAGA YOKO12014
Locations
LocationPatentsSpan
Ibaraki, JP42012–2014
Niihama, JP32006–2011
Osaka, JP22015–2018
Tokyo, JP12019