Patents by Inventor Hiroshi Souda
Hiroshi Souda 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: 9828660Abstract: A method for manufacturing an aluminum alloy casting includes obtaining the aluminum alloy casting by casting an aluminum alloy into a mold, performing solution heat treatment, rapidly cooling the casting, performing aging treatment, and cooling the casting. The aluminum alloy includes, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, and no more than 0.5% of Mn, and at least one component selected from the group consisting of 0.002 to 0.02% of Na, 0.002 to 0.02% of Ca and 0.002 to 0.02% of Sr, a remainder being Al and inevitable impurities. An internal combustion engine cylinder head is composed of the aluminum alloy casting and manufactured by the method of the casting. The aluminum alloy casting is suitable for applications requiring superior elongation, high cycle fatigue strength and high thermal fatigue strength.Type: GrantFiled: March 7, 2014Date of Patent: November 28, 2017Assignees: NISSAN MOTOR CO., LTD., NIPPON LIGHT METAL COMPANY, LTD.Inventors: Hiroshi Souda, Kouichi Akiyama, Hiroshi Horikawa, Masahiko Shioda
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Patent number: 8999080Abstract: Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%.Type: GrantFiled: July 2, 2008Date of Patent: April 7, 2015Assignees: Nissan Motor Co., Ltd., Nippon Light Metal Company, Ltd.Inventors: Hiroshi Souda, Kouichi Akiyama, Hiroshi Horikawa, Masahiko Shioda
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Patent number: 8779222Abstract: A production method of 1,1,3-trichloro-1-propene comprising the following steps A and B; Step A: 1,1,1,3-tetrachloropropane is dehydrochlorinated at a temperature between 30° C. and 50° C. in the presence of at least one base selected from the group consisting of alkali metal hydroxides and alkaline earth metal hydroxides, and a phase transfer catalyst, Step B: 3,3,3-trichloro-1-propene obtained in the step A is isomerized into 1,1,3-trichloro-1-propene in the presence of a metal catalyst.Type: GrantFiled: August 27, 2010Date of Patent: July 15, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Souda, Koji Hagiya
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Publication number: 20140182750Abstract: A method for manufacturing an aluminum alloy casting includes obtaining the aluminum alloy casting by casting an aluminum alloy into a mold, performing solution heat treatment, rapidly cooling the casting, performing aging treatment, and cooling the casting. The aluminum alloy includes, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, and no more than 0.5% of Mn, and at least one component selected from the group consisting of 0.002 to 0.02% of Na, 0.002 to 0.02% of Ca and 0.002 to 0.02% of Sr, a remainder being Al and inevitable impurities. An internal combustion engine cylinder head is composed of the aluminum alloy casting and manufactured by the method of the casting. The aluminum alloy casting is suitable for applications requiring superior elongation, high cycle fatigue strength and high thermal fatigue strength.Type: ApplicationFiled: March 7, 2014Publication date: July 3, 2014Applicants: NIPPON LIGHT METAL COMPANY, LTD., NISSAN MOTOR CO., LTD.Inventors: Hiroshi SOUDA, Kouichi AKIYAMA, Hiroshi HORIKAWA, Masahiko SHIODA
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Patent number: 8263779Abstract: A method for purifying an ?-unsaturated amine compound represented by Formula (1), the method comprising a step of extracting with water the compound of Formula (1) from a crude product of the ?-unsaturated amine compound represented by Formula (1), and a step of extracting with a pyridine solvent the ?-unsaturated amine compound of Formula (1) from the aqueous solution containing the compound of Formula (1) obtained in the previous step to obtain a pyridine solvent solution of the compound of Formula (1): wherein R1 represents a hydrogen atom, a C1-4 alkyl group, a halo C1-4 alkyl group, a C1-4 alkoxy-C1-4 alkyl group, a C7-9 aralkyl group, or an optionally substituted phenyl group, R2 represents a hydrogen atom, a C1-4 alkyl group, or a C7-9 aralkyl group, and R3 represents a hydrogen atom, a C1-5 alkyl group, a halo C1-4 alkyl group, a hydroxy C1-4 alkyl group, a C1-4 alkoxy-C1-4 alkyl group, C2-4 alkenyl group, or a C7-9 aralkyl group.Type: GrantFiled: August 8, 2008Date of Patent: September 11, 2012Assignee: Sumitomo Chemical Company, LimitedInventor: Hiroshi Souda
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Publication number: 20120142981Abstract: A production method of 1,1,3-trichloro-1-propene comprising the following steps A and B; Step A: 1,1,1,3-tetrachloropropane is dehydrochlorinated at a temperature between 30° C. and 50° C. in the presence of at least one base selected from the group consisting of alkali metal hydroxides and alkaline earth metal hydroxides, and a phase transfer catalyst, Step B: 3,3,3-trichloro-1-propene obtained in the step A is isomerized into 1,1,3-trichloro-1-propene in the presence of a metal catalyst.Type: ApplicationFiled: August 27, 2010Publication date: June 7, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Hiroshi Souda, Koji Hagiya
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Publication number: 20120035395Abstract: Provided is a process for producing a phthalic acid compound whose aromatic ring has been chlorinated, the process reacting a phthalic acid compound and chlorine in a mixture of chlorosulfonic acid and thionyl chloride in the presence of an iodine compound.Type: ApplicationFiled: April 23, 2010Publication date: February 9, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Hiroshi Souda, Koji Hagiya
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Publication number: 20120029195Abstract: A method for producing an alcohol compound, wherein a carboxylic acid ester compound is reduced with hydrogen in the presence of a ruthenium complex which is obtained by reacting a pyridine compound having at least one optionally substituted amino group with a ruthenium compound.Type: ApplicationFiled: March 30, 2010Publication date: February 2, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yasutaka Aoyagi, Hiroshi Souda, Koji Hagiya
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Publication number: 20110184184Abstract: A method for purifying an ?-unsaturated amine compound represented by Formula (1), the method comprising a step of extracting with water the compound of Formula (1) from a crude product of the ?-unsaturated amine compound represented by Formula (1), and a step of extracting with a pyridine solvent the ?-unsaturated amine compound of Formula (1) from the aqueous solution containing the compound of Formula (1) obtained in the previous step to obtain a pyridine solvent solution of the compound of Formula (1): wherein R1 represents a hydrogen atom, a C1-4 alkyl group, a halo C1-4 alkyl group, a C1-4 alkoxy-C1-4 alkyl group, a C7-9 aralkyl group, or an optionally substituted phenyl group, R2 represents a hydrogen atom, a C1-4 alkyl group, or a C7-9 aralkyl group, and R3 represents a hydrogen atom, a C1-5 alkyl group, a halo C1-4 alkyl group, a hydroxy C1-4 alkyl group, a C1-4 alkoxy-C1-4 alkyl group, C2-4 alkenyl group, or a C7-9 aralkyl group.Type: ApplicationFiled: August 8, 2008Publication date: July 28, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Hiroshi Souda
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Patent number: 7741511Abstract: There is provided a process for preparing a carboxylic acid ester of formula (3): R2COOR1??(3) wherein R1 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, and R2 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aryl group which may be substituted, a heteroaryl which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, which process is characterized by the steps of reacting a monohydroxy compound of formula (1): R1OH??(1) wherein R1 is as defined above, with a zirconium compound of formula (6): Zr(OR8)4??(6) wherein R8 is an alkyl group or an aryl group which may be substituted and is not the same as R1, to prepare a zirconium catalyst, and reacting a carboxylic acid of formula (2):Type: GrantFiled: August 10, 2007Date of Patent: June 22, 2010Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Souda, Kazunori Iwakura
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Patent number: 7652170Abstract: Disclosed is a method for producing a primary amine compound represented by the formula (2) below, which is characterized in that a halogen compound represented by the formula (1) below, ammonia and formaldehyde are reacted with each other, and then the thus-obtained reaction product is [1] brought into contact with an aqueous solution of an acid or [2] reacted with a hydroxylamine under acidic conditions. By this method, a primary amine compound can be commercially advantageously produced by using a low-cost ammonia while suppressing production of a secondary amine as a by-product. (1) (In the formula, R1 and R2 independently represent a hydrogen atom, a C1-C5 alkyl group which may be substituted by a halogen atom or the like, a C1-C5 alkoxy group which may be substituted by a halogen atom, a cyano group, a C2-C11 alkenyl group or a phenyl group or the like; R3 represents a hydrogen atom, a linear or branched C1-C5 alkyl group or a cyano group; and X represents a halogen atom.Type: GrantFiled: December 25, 2006Date of Patent: January 26, 2010Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Souda, Naoyuki Takano, Shinzo Seko
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Publication number: 20090287023Abstract: Disclosed is a method for producing a primary amine compound represented by the formula (2) below, which is characterized in that a halogen compound represented by the formula (1) below, ammonia and formaldehyde are reacted with each other, and then the thus-obtained reaction product is [1] brought into contact with an aqueous solution of an acid or [2] reacted with a hydroxylamine under acidic conditions. By this method, a primary amine compound can be commercially advantageously produced by using a low-cost ammonia while suppressing production of a secondary amine as a by-product. (1) (In the formula, R1 and R2 independently represent a hydrogen atom, a C1-C5 alkyl group which may be substituted by a halogen atom or the like, a C1-C5 alkoxy group which may be substituted by a halogen atom, a cyano group, a C2-C11 alkenyl group or a phenyl group or the like; R3 represents a hydrogen atom, a linear or branched C1-C5 alkyl group or a cyano group; and X represents a halogen atom.Type: ApplicationFiled: December 25, 2006Publication date: November 19, 2009Inventors: Hiroshi Souda, Naoyuki Takano, Shinzo Seko
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Publication number: 20090010799Abstract: Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%.Type: ApplicationFiled: July 2, 2008Publication date: January 8, 2009Inventors: Hiroshi SOUDA, Kouichi AKIYAMA, Hiroshi HORIKAWA, Masahiko SHIODA
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Patent number: 7399873Abstract: There is provided a process for preparing a carboxylic acid ester of formula (3): R2COOR1 ??(3) wherein R1 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, and R2 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aryl group which may be substituted, a heteroaryl which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, which process is characterized by the steps of reacting a monohydroxy compound of formula (1): R1OH ??(1) wherein R1 is as defined above, with a zirconium compound of formula (6): Zr(OR8)4 ??(6) wherein R8 is an alkyl group or an aryl group which may be substituted and is not the same as R1, to prepare a zirconium catalyst, and reacting a carboxylic acid of formula (2Type: GrantFiled: August 10, 2007Date of Patent: July 15, 2008Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Souda, Kazunori Iwakura
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Publication number: 20080033194Abstract: There is provided a process for preparing a carboxylic acid ester of formula (3): R2COOR1??(3) wherein R1 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, and R2 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aryl group which may be substituted, a heteroaryl which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, which process is characterized by the steps of reacting a monohydroxy compound of formula (1): R1OH??(1) wherein R1 is as defined above, with a zirconium compound of formula (6): Zr(OR8)4??(6) wherein R8 is an alkyl group or an aryl group which may be substituted and is not the same as R1, to prepare a zirconium catalyst, and reacting a carboxylic acid of formula (2Type: ApplicationFiled: August 10, 2007Publication date: February 7, 2008Inventors: Hiroshi SOUDA, Kazunori Iwakura
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Publication number: 20080009648Abstract: There is provided a process for preparing a carboxylic acid ester of formula (3): R2COOR1??(3) wherein R1 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, and R2 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aryl group which may be substituted, a heteroaryl which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, which process is characterized by the steps of reacting a monohydroxy compound of formula (1): R1OH??(1) wherein R1 is as defined above, with a zirconium compound of formula (6): Zr(OR8)4??(6) wherein R8 is an alkyl group or an aryl group which may be substituted and is not the same as R1, to prepare a zirconium catalyst, and reacting a carboxylic acid of formula (2Type: ApplicationFiled: August 10, 2007Publication date: January 10, 2008Inventors: Hiroshi SOUDA, Kazunori Iwakura
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Patent number: 6909013Abstract: There is disclosed a process process for producing a cyclopropanecarboxylate of formula (1): which process comprises reacting cyclopropanecarboxylic acid of formula (2): with a monohydroxy compound of formula (3): R6OH??(3), in the presence of a catalyst compound comprising an element of to Group 4 of the Periodic Table of Elements.Type: GrantFiled: January 24, 2002Date of Patent: June 21, 2005Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Souda, Kazunori Iwakura
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Publication number: 20050113581Abstract: There is provided a process for preparing a carboxylic acid ester of formula (3): R2COOR1 (3) wherein R1 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, and R2 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aryl group which may be substituted, a heteroaryl which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, which process is characterized by the steps of reacting a monohydroxy compound of formula (1): R1OH ??(1) wherein R1 is as defined above, with a zirconium compound of formula (6): Zr(OR8)4 ??(6) wherein R8 is an alkyl group or an aryl group which may be substituted and is not the same as R1, to prepare a zirconium catalyst, and reacting a carboxylic acid of formula (2):Type: ApplicationFiled: November 23, 2004Publication date: May 26, 2005Inventors: Hiroshi Souda, Kazunori Iwakura
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Patent number: 6750370Abstract: There is disclosed a process for the racemization of a vinyl-substituted cyclopropanecarboxylic acid or a derivative thereof, which is characterized by reacting an optically active vinyl-substituted cyclopropanecarboxylic acid compound of formula (1): wherein R1, R2, R3 and R4 each independently represent a hydrogen atom, a halogen atom, alkyl which may be substituted having 1-4 carbon atoms, aryl which may be substituted, or alkoxycarbonyl which may be substituted, or R1 and R2 are bonded to form an alkylene group, which may be substituted; and wherein X represents hydroxyl, a halogen atom, alkoxy which may be substituted having 1-20 carbon atoms, or aryloxy which may be substituted, with a nitric compound or a nitrogen oxide.Type: GrantFiled: July 16, 2002Date of Patent: June 15, 2004Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Souda, Kazunori Iwakura, Fumisato Goto
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Patent number: 6706910Abstract: There is provided a method for producing a cyclopropanecarboxylate of formula (1): which comprises contacting a cyclopropanecarboxylate of formula (2): with a monohydroxy compound of formula (3): R7OH (3) in the presence of a lithium compound of formula (4): R8OLi (4), wherein R1, R2, R3, R4 and R5 each independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted aryl group; R6 represents an alkyl group having 1 to 10 carbon atoms or a substituted or unsubstituted phenyl group; R7 and R8 do not simultaneously represent the same and each independently represent a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group.Type: GrantFiled: October 31, 2001Date of Patent: March 16, 2004Assignee: Sumitomo Chemical Company, LimitedInventors: Kazunori Iwakura, Hiroshi Souda, Tohei Takagaki, Yoshimi Yamada