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Inventor

Fumiya Zaima

Inventor
Okayama, JP

Overview

25→
Patents
1991–2016
Patent span
Chemistry
Primary field (CPC C)

Patents· 25 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds54%
B01DSeparation11%
Y02PClimate change mitigation technologies in the production or processing of goods9%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%
C07DHeterocyclic compounds7%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium7%
C07BGeneral methods of organic chemistry2%
C22BProduction and refining of metals2%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management2%
PatentTitleYear
9,347,112'Pretreatment method for chelate resin having pyridine ring used for collecting catalyst in terephthalic acid production process'20169,266,810'Crossflow type filtering operation method using ceramic filter'20169,150,487'Crossflow type filtering operation method using ceramic filter'20159,144,750'Method of replacing dispersion medium and apparatus therefor'20158,957,247'Pretreatment method for chelate resin having pyridine ring used for collecting catalyst in aromatic carboxylic acid production process'20158,247,604'Method of replacing dispersion medium'20128,247,605'Method of replacing dispersion medium'20128,242,304'Process for production of isophthalic acid'20128,236,982'Process for production of terephthalic acid'20128,178,716'Method of crystallization'20127,071,362'Process for producing alicyclic aldehydes'20066,927,306'Process for producing hydrogenated aromatic polycarboxylic acid and process for producing hydrogenated aromatic polycarboxylic anhydride'20056,541,662'Process for producing a hydrogenation product of an aromatic carboxylic acid'20036,268,528'Method of producing naphthalenedicarboxylic acid'20016,013,831'Processes for the production of high-purity dimethyl 2, 6-naphthalenedicarboxylate and naphthalenedicarboxylic acid'20005,880,313'Process for producing aromatic carboxylic acid'19995,712,412'Process for producing highly pure terephthalic acid'19985,705,682'Process for producing highly pure terephthalic acid'19985,684,187'Process for producing highly pure terephthalic acid'19975,679,847'Process for producing terephthalic acid'19975,310,944'Process for producing carboxylated compound'19945,187,311'Methylthiophenol derivatives and p-methylthiophenyl chloroformates and processes for producing these derivatives'19935,149,857'Process for production of sulfonium compounds'19925,075,476'Process for production of sulfonium compounds and novel methylthiphenol derivatives'19915,021,197'Process for production of sulfonium compounds'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2016Patents assigned to MITSUBISHI GAS CHEMICAL CO (25)· patent assignee history
1991–1993Based in Tokyo, JP· patent location history
1994Based in Tsukuba, JP· patent location history
1997–2015Patents assigned to MIZUSHIMA AROMA CO LTD (10)· patent assignee history
1997–2015Patents assigned to TOYO BOSEKI (10)· patent assignee history
1997–2000Based in Kurashiki, JP· patent location history
1999–2016Based in Okayama, JP· patent location history
2012–2016Patents assigned to ZAIMA FUMIYA (10)· patent assignee history
2012–2016Patents assigned to FUJITA HIDEAKI (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI GAS CHEMICAL CO251991–2016
MIZUSHIMA AROMA CO LTD101997–2015
TOYO BOSEKI101997–2015
ZAIMA FUMIYAself102012–2016
FUJITA HIDEAKI52012–2016
Locations
LocationPatentsSpan
Okayama, JP151999–2016
Kurashiki, JP51997–2000
Tokyo, JP41991–1993
Tsukuba, JP11994