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Inventor

Hirofumi Ohtsuka

Inventor
Hyogo, JP

Overview

16→
Patents
1999–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 16 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 chemistry24%
B01DSeparation21%
G05BControl or regulating systems in general12%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h109%
Y02PClimate change mitigation technologies in the production or processing of goods9%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors6%
C01BNon-metallic elements6%
C10LFuels not otherwise provided for6%
F23GCremation furnaces3%
Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]3%
PatentTitleYear
10,814,312Desulfurizing agent for gases and gas desulfurization method20209,067,175'Method and apparatus for removing low-concentration methane'20158,899,968'Combustible gas processing system and combustible gas processing method'20147,371,706'Catalyst for removing hydrocarbons from exhaust gas and method for purification of exhaust gas'20087,364,712'Catalyst for purifying methane-containing waste gas and method of purifying methane-containing waste gas'20086,887,446'Catalyst for removing hydrocarbons from exhaust gas and method for purification of exhaust gas'20056,788,990'Process control device and process control method'20046,733,243'Method of interbay transportation'20046,721,627'Track conveyance system'20046,687,568'Transportation system'20046,602,481'Catalyst for removing hydrocarbons from exhaust gas and method for clarification of exhaust gas'20036,577,972'Sampling inspection managing system'20036,535,778'Process control method and process control apparatus'20036,075,438'Communication network for vehicle control and diagnosis method thereof'20005,993,764'Nitrogen oxide-reducing catalyst and process for reducing nitrogen oxides in exhaust gas'19995,985,225'Nitrogen oxides reduction catalyst and process for reducing nitrogen oxides in exhaust gas'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2020Patents assigned to OSAKA GAS CO LTD (9)· patent assignee history
1999Patents assigned to ENIRICERCHE SPA (2)· patent assignee history
1999–2004Based in Hyogo, JP· patent location history
2003–2004Patents assigned to RYODEN SEMICONDUCTOR SYST ENG (5)· patent assignee history
2003–2004Patents assigned to MITSUBISHI ELECTRIC CORP (4)· patent assignee history
2003–2004Based in Itami, JP· patent location history
2003–2008Based in Ashiya, JP· patent location history
2008–2020Based in Osaka, JP· patent location history
2014–2015Patents assigned to OHTSUKA HIROFUMI (2)· patent assignee history
2014–2015Based in Ikoma, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OSAKA GAS CO LTD91999–2020
RYODEN SEMICONDUCTOR SYST ENG52003–2004
MITSUBISHI ELECTRIC CORP42003–2004
ENIRICERCHE SPA21999
OHTSUKA HIROFUMIself22014–2015
Locations
LocationPatentsSpan
Hyogo, JP41999–2004
Itami, JP42003–2004
Ashiya, JP32003–2008
Osaka, JP22008–2020
Ikoma, JP22014–2015