Patents by Inventor Makoto Yako
Makoto Yako 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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Publication number: 20110313179Abstract: The invention provides a method for producing an olefin oxide which comprises reacting hydrogen peroxide and an olefin in a solvent containing water, a nitrile compound and a cyclic secondary amine compound, in the presence of a titanosilicate having a pore composed of a 12- or more-membered oxygen ring.Type: ApplicationFiled: March 12, 2010Publication date: December 22, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Tomonori Kawabata, Makoto Yako
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Publication number: 20110237810Abstract: The present invention relates to a method for producing a Ti-MWW precursor comprising: a first step of heating a mixture to prepare a solid, said mixture comprising a structure-directing agent, a compound containing a Group 13 element of the periodic table, a titanium-containing compound (1), a silicon-containing compound and water; and a second step of contacting the solid with a titanium-containing compound (2) and an inorganic acid.Type: ApplicationFiled: December 4, 2009Publication date: September 29, 2011Inventors: Tomonori Kawabata, Makoto Yako
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Patent number: 7999125Abstract: There is disclosed a method for producing propylene oxide, which includes: reacting propylene, oxygen, and hydrogen in the presence of a noble metal catalyst and a titanosilicate catalyst in a liquid phase containing a polycyclic compound, which is unsubstituted or substituted with at least one substituent selected from Group B below, wherein the polycyclic compound is composed of two or more identical or different ring compounds selected from Group A below and the ring compounds are fused, directly bonded, or bonded by a linkage group selected from the group consisting of an oxygen atom, carbon chain, and a group composed of oxygen atom(s) and a carbon chain, provided that said polycyclic compound is not a polycyclic compound having hydroxy groups or oxo groups at para or. ortho positions. Group A consisting of benzene, cyclopentadiene, cycloheptatriene, furane, pyrane, cyclopentene, cyclopentane, cyclohexane, cyclohexene, cyclohexadiene, cycloheptane, cycloheptene, and cycloheptadiene.Type: GrantFiled: June 19, 2008Date of Patent: August 16, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroaki Abekawa, Tomonori Kawabata, Makoto Yako
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Patent number: 7928034Abstract: There is disclosed a process for producing an olefin oxide characterized by contacting an olefin and oxygen, in the presence of water and a halogen compound, with a silver catalyst, wherein the silver catalyst is a silver catalyst that is obtainable by contacting metal silver, a silver compound or a mixture of both with an alkaline earth metal carbonate and that has an alkali metal content of 1,500 ppm or less based on the total weight of the silver catalyst.Type: GrantFiled: February 16, 2006Date of Patent: April 19, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Hirotsugu Kano, Michio Yamamoto, Makoto Yako
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Publication number: 20110009651Abstract: The present invention provides a regeneration method of a titanosilicate catalyst, specifically provides a regeneration method of a titanosilicate catalyst which comprises contacting the titanosilicate catalyst deteriorated in catalytic ability with a nitrile compound or a mixture of water and a nitrile compound at a temperature from 25° C. to 200° C.Type: ApplicationFiled: March 3, 2009Publication date: January 13, 2011Inventors: Tomonori Kawabata, Hiroaki Abekawa, Makoto Yako
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Publication number: 20100197945Abstract: There is disclosed a method for producing propylene oxide, which includes: reacting propylene, oxygen, and hydrogen in the presence of a noble metal catalyst and a titanosilicate catalyst in a liquid phase containing a polycyclic compound, which is unsubstituted or substituted with at least one substituent selected from Group B below, wherein the polycyclic compound is composed of two or more identical or different ring compounds selected from Group A below and the ring compounds are fused, directly bonded, or bonded by a linkage group selected from the group consisting of an oxygen atom, carbon chain, and a group composed of oxygen atom(s) and a carbon chain, provided that said polycyclic compound is not a polycyclic compound having hydroxy groups or oxo groups at para or. ortho positions. Group A consisting of benzene, cyclopentadiene, cycloheptatriene, furane, pyrane, cyclopentene, cyclopentane, cyclohexane, cyclohexene, cyclohexadiene, cycloheptane, cycloheptene, and cycloheptadiene.Type: ApplicationFiled: June 19, 2008Publication date: August 5, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Hiroaki Abekawa, Tomonori Kawabata, Makoto Yako
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Patent number: 7585987Abstract: There is disclosed a process for producing an olefin oxide, which is characterized by reacting an olefin with oxygen in the presence of a silver catalyst and 0.2 mole or more of water per mol of the olefin.Type: GrantFiled: November 21, 2007Date of Patent: September 8, 2009Assignee: Sumitomo Chemical Company, LimitedInventors: Makoto Yako, Michio Yamamoto
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Publication number: 20090216034Abstract: There is disclosed a process for producing an olefin oxide characterized by contacting an olefin and oxygen, in the presence of water and a halogen compound, with a silver catalyst, wherein the silver catalyst is a silver catalyst that is obtainable by contacting metal silver, a silver compound or a mixture of both with an alkaline earth metal carbonate and that has an alkali metal content of 1,500 ppm or less based on the total weight of the silver catalystType: ApplicationFiled: February 16, 2006Publication date: August 27, 2009Inventors: Hirotsugu Kano, Michio Yamamoto, Makoto Yako
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Publication number: 20080081919Abstract: There is disclosed a process for producing an olefin oxide, which is characterized by reacting an olefin with oxygen in the presence of a silver catalyst and 0.2 mole or more of water per mol of the olefin.Type: ApplicationFiled: November 21, 2007Publication date: April 3, 2008Inventors: Makoto Yako, Michio Yamamoto
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Patent number: 7319156Abstract: There is disclosed a process for producing an olefin oxide, which is characterized by reacting an olefin with oxygen in the presence of a silver catalyst and 0.2 mole or more of water per mol of the olefin.Type: GrantFiled: March 19, 2004Date of Patent: January 15, 2008Assignee: Sumitomo Chemical Company, LimitedInventors: Makoto Yako, Michio Yamamoto
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Publication number: 20050113587Abstract: There is disclosed a process for producing an olefin oxide, which is characterized by reacting an olefin with oxygen in the presence of a silver catalyst and 0.2 mole or more of water per mol of the olefin.Type: ApplicationFiled: March 19, 2004Publication date: May 26, 2005Inventors: Makoto Yako, Michio Yamamoto
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Patent number: 6531626Abstract: There is disclosed a method for producing cyclopropanecarboxylates of the formula (3): by transesterification in the presence of a lanthanoid metal alkoxideType: GrantFiled: October 7, 1999Date of Patent: March 11, 2003Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshiaki Oda, Makoto Yako
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Patent number: 6342627Abstract: There is disclosed a process for producing an unsaturated ester of the formula (3): wherein R1, R2 and R3 independently represent hydrogen, halogen, alkyl, alkenyl and the like and R5 represents alkyl which may be substituted and the like, which process is characterized by subjecting an unsaturated ester of the formula (1): wherein R1, R2 and R3 have the same meaning as previously defined and R4 represents alkyl or phenyl and the like, to a transesterification reaction with a hydroxy compound of the formula (2): R5OH (2) wherein R5 has the same meaning as previously defined, in the presence of a lanthanoide metal alkoxide.Type: GrantFiled: December 14, 1999Date of Patent: January 29, 2002Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshiaki Oda, Makoto Yako, Kazunori Iwakura
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Patent number: 6303099Abstract: A process for producing a pentacyl-type crystalline zeolite is provided which comprises the steps of (i) preparing a mixture of a silicon compound, water and tetrapropyl ammonium hydroxide, (ii) conducting a hydrothermal reaction of the mixture to obtain a reaction mixture containing zeolite crystals, (iii) separating zeolite crystals from the reaction mixture to collect a remaining solution, (iv) calcinating the resulting zeolite crystals, (v) treating the calcinated zeolite crystals with a solution such as ammonia water and (vi) recycling the solution collected in step (iii) to step (i), wherein in the mixture prepared in step (i) a molar ratio of hydroxide ion to silicon is from about 0.1 to about 0.4 and a molar ratio of potassium to silicon is about 0.1 or less. With this process, a zeolite catalyst having good performance can be produced with good reproducibility.Type: GrantFiled: June 28, 2000Date of Patent: October 16, 2001Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Ichihashi, Keisuke Sugita, Makoto Yako
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Patent number: 6265574Abstract: A process for producing &egr;-caprolactam is provided which comprises the steps of subjecting cyclohexanone oxime to a gaseous phase Beckmann rearrangement reaction in a fluidized bed system using a solid catalyst and re-generating the catalyst, wherein said process comprises a step of treating the catalyst with an oxygen-containing gas at an elevated temperature in a re-generation step so that the nitrogen content of the catalyst falls within a range of 10 ppm to 2,500 ppm on its way to the reaction step from the re-generating step. According to the present invention, &egr;-caprolactam is produced with a high conversion or a high selectivity without interrupting the rearrangement reaction or the re-generation step.Type: GrantFiled: February 9, 2000Date of Patent: July 24, 2001Assignee: Sumitomo Chemical Company, LimitedInventors: Masaru Kitamura, Yasumoto Shimazu, Makoto Yako