Patents by Inventor Hideto Tsuji
Hideto Tsuji has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10253008Abstract: The present invention is aimed to provide an industrially advantageous method for producing a furan compound, in which a furan compound can be efficiently obtained in a high selectivity from a furfural compound. The present invention is concerned with a method for producing a furan compound including feeding, as a raw material, a furfural composition containing a furfural compound into a reactor and subjecting to a decarbonylation reaction in the presence of a catalyst to obtain a furan compound as a product, wherein a furfural dimer concentration in the furfural composition is 1,000 ppm by weight or less, and a peroxide value in the furfural composition is 0.01 mEq/kg or more and 1.0 mEq/kg or less.Type: GrantFiled: July 10, 2018Date of Patent: April 9, 2019Assignee: Mitsubishi Chemical CorporationInventors: Yusuke Izawa, Hideto Tsuji, Yosuke Suzuki
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Patent number: 10125109Abstract: The present invention is aimed to provide an industrially advantageous method for producing a furan compound, in which a furan compound can be efficiently obtained in a high selectivity from a furfural compound. The present invention is concerned with a method for producing a furan compound including feeding, as a raw material, a furfural composition containing a furfural compound into a reactor and subjecting to a decarbonylation reaction in the presence of a catalyst to obtain a furan compound as a product, wherein a furfural dimer concentration in the furfural composition is 1,000 ppm by weight or less, and a peroxide value in the furfural composition is 0.01 mEq/kg or more and 1.0 mEq/kg or less.Type: GrantFiled: September 22, 2017Date of Patent: November 13, 2018Assignee: Mitsubishi Chemical CorporationInventors: Yusuke Izawa, Hideto Tsuji, Yosuke Suzuki
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Publication number: 20180319757Abstract: The present invention is aimed to provide an industrially advantageous method for producing a furan compound, in which a furan compound can be efficiently obtained in a high selectivity from a furfural compound. The present invention is concerned with a method for producing a furan compound including feeding, as a raw material, a furfural composition containing a furfural compound into a reactor and subjecting to a decarbonylation reaction in the presence of a catalyst to obtain a furan compound as a product, wherein a furfural dimer concentration in the furfural composition is 1,000 ppm by weight or less, and a peroxide value in the furfural composition is 0.01 mEq/kg or more and 1.0 mEq/kg or less.Type: ApplicationFiled: July 10, 2018Publication date: November 8, 2018Applicant: Mitsubishi Chemical CorporationInventors: Yusuke Izawa, Hideto Tsuji, Yosuke Suzuki
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Publication number: 20180009774Abstract: The present invention is aimed to provide an industrially advantageous method for producing a furan compound, in which a furan compound can be efficiently obtained in a high selectivity from a furfural compound. The present invention is concerned with a method for producing a furan compound including feeding, as a raw material, a furfural composition containing a furfural compound into a reactor and subjecting to a decarbonylation reaction in the presence of a catalyst to obtain a furan compound as a product, wherein a furfural dimer concentration in the furfural composition is 1,000 ppm by weight or less, and a peroxide value in the furfural composition is 0.01 mEq/kg or more and 1.0 mEq/kg or less.Type: ApplicationFiled: September 22, 2017Publication date: January 11, 2018Applicant: Mitsubishi Chemical CorporationInventors: Yusuke IZAWA, Hideto Tsuji, Yosuke Suzuki
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Patent number: 9815807Abstract: An object of the present invention is to provide a method for suppressing the corrosion of a reactor and reducing waste in the production of 2-furaldehyde from a sugar raw material containing a hexose as a constituent component, and another object of the invention is to provide an industrially advantageous method for producing 2-furaldehyde, which suppresses a decrease in the activity of a catalyst in a case of using an acid catalyst and provides a higher yield. The present invention relates to a method for producing 2-furaldehyde comprising heating a sugar raw material containing a hexose as a constituent component in an aprotic polar solvent in the presence of a solid acid catalyst.Type: GrantFiled: June 27, 2016Date of Patent: November 14, 2017Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Toru Okoshi, Hideto Tsuji
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Publication number: 20160304482Abstract: An object of the present invention is to provide a method for suppressing the corrosion of a reactor and reducing waste in the production of 2-furaldehyde from a sugar raw material containing a hexose as a constituent component, and another object of the invention is to provide an industrially advantageous method for producing 2-furaldehyde, which suppresses a decrease in the activity of a catalyst in a case of using an acid catalyst and provides a higher yield. The present invention relates to a method for producing 2-furaldehyde comprising heating a sugar raw material containing a hexose as a constituent component in an aprotic polar solvent in the presence of a solid acid catalyst.Type: ApplicationFiled: June 27, 2016Publication date: October 20, 2016Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Toru OKOSHI, Hideto TSUJI
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Patent number: 9403787Abstract: An object of the present invention is to provide a method for suppressing the corrosion of a reactor and reducing waste in the production of 2-furaldehyde from a sugar raw material containing a hexose as a constituent component, and another object of the invention is to provide an industrially advantageous method for producing 2-furaldehyde, which suppresses a decrease in the activity of a catalyst in a case of using an acid catalyst and provides a higher yield. The present invention relates to a method for producing 2-furaldehyde comprising heating a sugar raw material containing a hexose as a constituent component in an aprotic polar solvent in the presence of a solid acid catalyst.Type: GrantFiled: July 29, 2013Date of Patent: August 2, 2016Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Toru Okoshi, Hideto Tsuji
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Publication number: 20130317239Abstract: An object of the present invention is to provide a method for suppressing the corrosion of a reactor and reducing waste in the production of 2-furaldehyde from a sugar raw material containing a hexose as a constituent component, and another object of the invention is to provide an industrially advantageous method for producing 2-furaldehyde, which suppresses a decrease in the activity of a catalyst in a case of using an acid catalyst and provides a higher yield. The present invention relates to a method for producing 2-furaldehyde comprising heating a sugar raw material containing a hexose as a constituent component in an aprotic polar solvent in the presence of a solid acid catalyst.Type: ApplicationFiled: July 29, 2013Publication date: November 28, 2013Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Toru Okoshi, Hideto Tsuji
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Publication number: 20130295363Abstract: A method for producing a metal nitride by employing a container made of a nonoxide material, wherein reaction or adhesion of a raw metal or metal nitride to be formed to the container can be avoided and inclusion of oxygen derived from the material of the container can be prevented; by securing a certain or larger supply amount and a certain or higher flow rate of the nitrogen source gas, the raw metal can be converted into a nitride with an extremely high conversion, and a metal nitride having a small amount of an unreacted raw metal remaining and containing a metal and nitrogen in a stoichiometric constant can be obtained with a high yield; a metal nitride having small amounts of unreacted raw metal remaining and oxygen included can be obtained with a high yield and is very useful as a raw material for bulk crystal growth.Type: ApplicationFiled: June 10, 2013Publication date: November 7, 2013Inventor: Hideto TSUJI
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Publication number: 20080193363Abstract: To provide a method for efficiently producing a high quality metal nitride containing a small amount of impurities, particularly gallium nitride. A method for producing a metal nitride characterized by employing a container made of a nonoxide material. By using a nonoxide for a material of a container to be in contact with a raw metal or a metal nitride to be formed, reaction or adhesion of the raw metal or the metal nitride to be formed to the container can be avoided, and inclusion of oxygen derived from the material of the container can be prevented, whereby a high quality metal nitride having high crystallinity will be obtained. By securing a certain or larger supply amount and a certain or higher flow rate of the nitrogen source gas, the raw metal can be converted into a nitride with an extremely high conversion, and a metal nitride having a small amount of an unreacted raw metal remaining and containing a metal and nitrogen in a stoichiometric constant can be obtained with a high yield.Type: ApplicationFiled: August 16, 2005Publication date: August 14, 2008Applicant: MITSUBISHI CHEMICAL CORPORATIONInventor: Hideto Tsuji