Takahisa Utaki

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Kyotanabe-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Methane gas concentration method
- Patent number 9,944,575
- Issue date Apr 17, 2018
- Osaka Gas Co., Ltd.
- Shota Kawashima
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Gas purification method
- Patent number 9,732,297
- Issue date Aug 15, 2017
- Osaka Gas Co., Ltd.
- Takahisa Utaki
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of enriching combustible gas
- Patent number 8,974,575
- Issue date Mar 10, 2015
- Osaka Gas Co., Ltd.
- Takahisa Utaki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Combustible gas enrichment apparatus
- Patent number 8,940,081
- Issue date Jan 27, 2015
- Osaka Gas Co., Ltd.
- Takahisa Utaki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Enrichment system for combustible gas
- Patent number 8,932,387
- Issue date Jan 13, 2015
- Osaka Gas Co., Ltd.
- Hajime Morioka
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
Gas Purification Method
- Publication number 20160272908
- Publication date Sep 22, 2016
- OSAKA GAS CO., LTD.
- Takahisa Utaki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Methane Gas Concentration Method
- Publication number 20160016866
- Publication date Jan 21, 2016
- OSAKA GAS CO., LTD.
- Shota Kawashima
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Enrichment System for Combustible Gas
- Publication number 20130205665
- Publication date Aug 15, 2013
- OSAKA GAS CO., LTD.
- Hajime Morioka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Combustible Gas Enrichment Apparatus
- Publication number 20130136660
- Publication date May 30, 2013
- OSAKA GAS CO., LTD.
- Takahisa Utaki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method of Enriching Combustible Gas
- Publication number 20130125466
- Publication date May 23, 2013
- OSAKA GAS CO., LTD.
- Takahisa Utaki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL