Patents by Inventor Yoshimitsu Ina
Yoshimitsu Ina 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: 11958103Abstract: Inorganic coated sand in a dry state having refractory aggregate; and an inorganic binder layer formed on a surface of the refractory aggregate, in which the inorganic binder layer contains a metasilicate hydrate.Type: GrantFiled: June 24, 2019Date of Patent: April 16, 2024Assignee: KAO CORPORATIONInventors: Yoshimitsu Ina, Masayuki Kato
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Publication number: 20210268570Abstract: Inorganic coated sand in a dry state having refractory aggregate; and an inorganic binder layer formed on a surface of the refractory aggregate, in which the inorganic binder layer contains a metasilicate hydrate.Type: ApplicationFiled: June 24, 2019Publication date: September 2, 2021Applicant: KAO CORPORATIONInventors: Yoshimitsu INA, Masayuki KATO
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Patent number: 8813829Abstract: In production of a mold with the reclaimed spherical molding sand having a sphericity of 0.95 or more and mainly composed of Al2O3 together with the binder containing the acid-hardening resin and the hardening agent (I), at least one of the hardening agents (I) and (II) that is used in production of a mold from which the reclaimed molding sand is obtained contains the organic sulfonic acid, and in the hardening agent, a content of sulfuric acid is not more than 5% by weight and a content of phosphoric acid is not more than 5% by weight.Type: GrantFiled: April 27, 2009Date of Patent: August 26, 2014Assignee: Kao CorporationInventors: Yoshimitsu Ina, Shigeo Nakai, Toshiki Matsuo
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Patent number: 8551373Abstract: The present invention relates to a process for producing reclaimed casting sand, which has step (I) of grinding recovered sand in the presence of an additive (A) containing a liquid having a surface tension of not higher than 35 mN/m at 25° C. and a boiling point of not lower than 150° C. at 1 atmospheric pressure.Type: GrantFiled: September 11, 2008Date of Patent: October 8, 2013Assignee: Kao CorporationInventor: Yoshimitsu Ina
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Publication number: 20120261087Abstract: A process for producing a mold, comprising a step of mixing refractory particles, a water-soluble phenol resin, and a curing agent composition comprising an ester compound, thereby yielding mixed sands, and a step of putting the mixed sands into an original pattern to shape the sands, wherein the refractory particles comprise reclaimed sands that are artificial sands produced by a fusion method in a proportion of 70% or more by weight, the curing agent composition comprises at least one selected from triethylene glycol diacetate, triethylene glycol, 3-phenylpropane-1-ol, and benzyl alcohol.Type: ApplicationFiled: December 20, 2010Publication date: October 18, 2012Inventors: Masahiko Kagitani, Yoshimitsu Ina, Hitoshi Funada
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Patent number: 7987892Abstract: A spherical casting sand having an average particle diameter of 0.03 to 1.5 mm, produced by a flame fusion method, usable together with a urethane binder. Casting sands capable of producing a mold having higher strength and excellent surface smoothness without deformation or breakage with fewer gas defects in producing a mold by using a urethane binder in the cold box process or in the urethane self-hardening mold making method. The casting sand has longer bench life in the cold box process. Amount of generated gas that is a problem of the mold making method using a urethane binder can be significantly reduced, and a casting with fewer gas defects can be obtained.Type: GrantFiled: January 31, 2006Date of Patent: August 2, 2011Assignee: Kao CorporationInventors: Masayuki Kato, Yoshimitsu Ina
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Patent number: 7951454Abstract: The present invention provides resin-coated sand containing spherical molding sand with a binder composition, the spherical molding sand having an average particle diameter of 0.02 to 1.5 mm and being produced by a flame fusion method.Type: GrantFiled: May 19, 2005Date of Patent: May 31, 2011Assignee: Kao CorporationInventor: Yoshimitsu Ina
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Publication number: 20110100578Abstract: In production of a mold with the reclaimed spherical molding sand having a sphericity of 0.95 or more and mainly composed of Al2O3 together with the binder containing the acid-hardening resin and the hardening agent (I), at least one of the hardening agents (I) and (II) that is used in production of a mold from which the reclaimed molding sand is obtained contains the organic sulfonic acid, and in the hardening agent, a content of sulfuric acid is not more than 5% by weight and a content of phosphoric acid is not more than 5% by weight.Type: ApplicationFiled: April 27, 2009Publication date: May 5, 2011Applicant: KAO CORPORATIONInventors: Yoshimitsu Ina, Shigeo Nakai, Toshiki Matsuo
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Publication number: 20100252951Abstract: The present invention relates to a process for producing reclaimed casting sand, which has step (I) of grinding recovered sand in the presence of an additive (A) containing a liquid having a surface tension of not higher than 35 mN/m at 25° C. and a boiling point of not lower than 150° C. at 1 atmospheric pressure.Type: ApplicationFiled: September 11, 2008Publication date: October 7, 2010Inventor: Yoshimitsu Ina
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Publication number: 20080274374Abstract: The present invention provides resin-coated sand containing spherical molding sand with a binder composition, the spherical molding sand having an average particle diameter of 0.02 to 1.5 mm and being produced by a flame fusion method.Type: ApplicationFiled: May 19, 2005Publication date: November 6, 2008Applicant: KAO CORPORATIONInventor: Yoshimitsu Ina
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Publication number: 20080138650Abstract: The present invention relates to spherical casting sand having an average particle diameter of 0.03 to 1.5 mm, produced by a flame fusion method, usable together with a urethane binder.Type: ApplicationFiled: January 31, 2006Publication date: June 12, 2008Applicant: KAO CORPORATIONInventors: Masayuki Kato, Yoshimitsu Ina
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Patent number: 5621055Abstract: A process for producing polymer particles with an irregular shape by polymerizing a water-soluble polymerizable monomer in a system comprising a hydrophobic organic solvent inert to the polymerization and an aqueous solution of the water-soluble polymerizable monomer, characterized in that the system further contains an anionic surfactant.Type: GrantFiled: September 19, 1995Date of Patent: April 15, 1997Assignee: Kao CorporationInventors: Seiichi Miyanaga, Yoshimitsu Ina, Takahide Minami, Takayuki Amiya
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Patent number: 5011680Abstract: A fat and oil composition comprises (1) as the main triglyceride one or more mixed acid triglyceride having one or more saturated C20 to C24 fatty acid residue and one or more unsaturated C16 to C22 fatty acid residue in a molecule thereof and (2) in the entire fatty acid moiety 15 to 70 wt. % of one or more saturated C20 to C24 fatty acids and 20 to 60 wt. % of one or more unsaturated C16 to C22 fatty acids. It is useful as a base of a solid cosmetic preparation.Type: GrantFiled: June 15, 1988Date of Patent: April 30, 1991Assignee: Kao CorporationInventors: Toshiyuki Suzuki, Masahide Nohta, Akira Shigeta, Yoshimitsu Ina, Manami Nozawa
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Patent number: 4791140Abstract: A novel cosmetic comprises an oil gel formed by at least one metal salt of a dialkyl phosphate of the following general formula (I), (II) or (III) ##STR1## in which each R.sub.1 and each R.sub.2 independently represent a saturated or unsaturated, linear or branched hydrocarbon group having from 8 to 36 carbon atoms, m is an integer of from 1 to 3, n is an integer of from 0 to 2, k is a value of 1 or 2, and 1 is a value of 0 to 1, and a cosmetic oil.The metal salt of the dialkyl phosphate can yield a good oil gel when it is incorporated into the oil in an amount as small as 0.1 to 10% of the oil. Further, the dialkyl phosphate retains good feel of oils without causing oozing of the oil, crazing, discoloration, perspiration and the like.Type: GrantFiled: April 25, 1986Date of Patent: December 13, 1988Assignee: Kao CorporationInventors: Junichi Fukasawa, Yoshimitsu Ina, Hisao Tsutsumi