Hirofumi Ohtsuka

Person

Ashiya-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Gas desulfurizing agent and desulfurizing method
- Patent number 12,194,442
- Issue date Jan 14, 2025
- Osaka Gas Co., Ltd.
- Shimpei Norioka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Desulfurizing agent for gases and gas desulfurization method
- Patent number 10,814,312
- Issue date Oct 27, 2020
- Osaka Gas Co., Ltd.
- Shimpei Norioka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method and apparatus for removing low-concentration methane
- Patent number 9,067,175
- Issue date Jun 30, 2015
- Osaka Gas Co., Ltd.
- Hirofumi Ohtsuka
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Combustible gas processing system and combustible gas processing me...
- Patent number 8,899,968
- Issue date Dec 2, 2014
- Osaka Gas Co., Ltd.
- Kenji Seki
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Catalyst for removing hydrocarbons from exhaust gas and method for...
- Patent number 7,371,706
- Issue date May 13, 2008
- Osaka Gas Company Limited
- Hirofumi Ohtsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Catalyst for purifying methane-containing waste gas and method of p...
- Patent number 7,364,712
- Issue date Apr 29, 2008
- Osaka Gas Company Limited
- Hirofumi Ohtsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Catalyst for removing hydrocarbons from exhaust gas and method for...
- Patent number 6,887,446
- Issue date May 3, 2005
- Osaka Gas Company Limited
- Hirofumi Ohtsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Catalyst for removing hydrocarbons from exhaust gas and method for...
- Patent number 6,602,481
- Issue date Aug 5, 2003
- Osaka Gas Company Limited
- Hirofumi Ohtsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Nitrogen oxide-reducing catalyst and process for reducing nitrogen...
- Patent number 5,993,764
- Issue date Nov 30, 1999
- Osaka Gas Company Limited
- Takeshi Tabata
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Nitrogen oxides reduction catalyst and process for reducing nitroge...
- Patent number 5,985,225
- Issue date Nov 16, 1999
- Osaka Gas Company Limited
- Hirofumi Ohtsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Method for Producing Fuel Gas
- Publication number 20230093127
- Publication date Mar 23, 2023
- OSAKA GAS CO., LTD.
- Hirofumi Ohtsuka
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Gas Desulfurizing Agent and Desulfurizing Method
- Publication number 20220080398
- Publication date Mar 17, 2022
- OSAKA GAS CO., LTD.
- Shimpei Norioka
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Desulfurizing Agent for Gases and Gas Desulfurization Method
- Publication number 20200108371
- Publication date Apr 9, 2020
- OSAKA GAS CO., LTD.
- Shimpei Norioka
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Reforming Catalyst for Hydrocarbons and Method of its Manufacture
- Publication number 20160008790
- Publication date Jan 14, 2016
- OSAKA GAS CO., LTD.
- Susumu Takami
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method and Apparatus for Removing Low-Concentration Methane
- Publication number 20120189523
- Publication date Jul 26, 2012
- OSAKA GAS CO., LTD.
- Hirofumi Ohtsuka
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
Combustible Gas Processing System and Combustible Gas Processing Me...
- Publication number 20100196833
- Publication date Aug 5, 2010
- OSAKA GAS CO., LTD.
- Kenji Seki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Catalyst for removing hydrocarbons from exhaust gas and method for...
- Publication number 20050002839
- Publication date Jan 6, 2005
- OSAKA GAS COMPANY LIMITED
- Hirofumi Ohtsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Catalyst for removing hydrocarbons from exhaust gas and method for...
- Publication number 20040235654
- Publication date Nov 25, 2004
- OSAKA GAS COMPANY LIMITED
- Hirofumi Ohtsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Catalyst for purifying methane-containing waste gas and method of p...
- Publication number 20040013591
- Publication date Jan 22, 2004
- Hirofumi Ohtsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Catalyst for removing hydrocarbons from exhaust gas and method for...
- Publication number 20040013592
- Publication date Jan 22, 2004
- OSAKA GAS COMPANY LIMITED
- Hirofumi Ohtsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Hirofumi Ohtsuka

Person

Patents Grantslast 30 patents

Gas desulfurizing agent and desulfurizing method

Desulfurizing agent for gases and gas desulfurization method

Method and apparatus for removing low-concentration methane

Combustible gas processing system and combustible gas processing me...

Catalyst for removing hydrocarbons from exhaust gas and method for...

Catalyst for purifying methane-containing waste gas and method of p...

Catalyst for removing hydrocarbons from exhaust gas and method for...

Catalyst for removing hydrocarbons from exhaust gas and method for...

Nitrogen oxide-reducing catalyst and process for reducing nitrogen...

Nitrogen oxides reduction catalyst and process for reducing nitroge...

Patents Applicationslast 30 patents

Method for Producing Fuel Gas

Gas Desulfurizing Agent and Desulfurizing Method

Desulfurizing Agent for Gases and Gas Desulfurization Method

Reforming Catalyst for Hydrocarbons and Method of its Manufacture

Method and Apparatus for Removing Low-Concentration Methane

Combustible Gas Processing System and Combustible Gas Processing Me...

Catalyst for removing hydrocarbons from exhaust gas and method for...

Catalyst for removing hydrocarbons from exhaust gas and method for...

Catalyst for purifying methane-containing waste gas and method of p...

Catalyst for removing hydrocarbons from exhaust gas and method for...