Patents by Inventor Kazuyuki Nishikawa
Kazuyuki Nishikawa 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: 11845694Abstract: The invention relates to a composition for forming a casting mold, the composition containing heat-resistant inorganic particles; a waterglass-based binder; a surfactant; a silicon-containing compound; activated carbon powder and grain; and water; and the silicon-containing compound contains at least one of metal silicon and ferrosilicon.Type: GrantFiled: March 4, 2020Date of Patent: December 19, 2023Assignee: SINTOKOGIO, LTD.Inventors: Kazuyuki Nishikawa, Masanori Tomioka, Yusuke Kato, Tetsuji Matsui, Tomohiro Aoki
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Publication number: 20220194855Abstract: The invention relates to a composition for forming a casting mold, the composition containing heat-resistant inorganic particles; a waterglass-based binder; a surfactant; a silicon-containing compound; activated carbon powder and grain; and water; and the silicon-containing compound contains at least one of metal silicon and ferrosilicon.Type: ApplicationFiled: March 4, 2020Publication date: June 23, 2022Applicant: SINTOKOGIO, LTD.Inventors: Kazuyuki NISHIKAWA, Masanori TOMIOKA, Yusuke KATO, Tetsuji MATSUI, Tomohiro AOKI
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Publication number: 20140176068Abstract: A charging system, electronic apparatus, charge control method, and program applicable also to a movable-coil-type charging system are provided. A power receiving unit includes a charging section charging a secondary battery by using current induced in a power receiving coil; a charge state determining section monitoring a charge state of the secondary battery to determine whether charging of the secondary battery is required to be stopped; a command transmitting section stopping an operation of charging when determined that charging of the secondary battery is required to be stopped and transmitting a command to a power transmitting unit; a recharge determining section determining, while charging of the secondary battery is stopped, whether the secondary battery requires recharging; and a coupling releasing section temporarily releasing coupling of the power receiving coil and a power transmitting coil by electromagnetic induction when determined that the secondary battery requires recharging.Type: ApplicationFiled: April 26, 2012Publication date: June 26, 2014Applicant: NEC CASIO MOBILE COMMUNICATIONS, LTD.Inventor: Kazuyuki Nishikawa
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Publication number: 20140150984Abstract: A method of making a metal casting mold is disclosed. The method comprises the steps of: covering a support pattern by a pulp-molded element; installing a mold flask provided with a depressurizing device, on an upper side of the pulp-molded element; packing heat-resistant particles inside the mold flask; providing a sealing member on an upper surface of the mold flask so as to seal the inside of the mold flask; depressurizing the inside of the mold flask by the depressurizing device, to form a mold comprising the mold flask, the heat-resistant particles, the pulp-molded element and the sealing member; and separating the pulp-molded element from the support pattern. A metal casting mold made by this method is also disclosed.Type: ApplicationFiled: June 19, 2012Publication date: June 5, 2014Applicant: SINTOKOGIO, LTD.Inventors: Kazuyuki Nishikawa, Masanori Tomioka
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Patent number: 8528626Abstract: The present inventions provide a method for forming molds and a core which generates no gases with bad effects on the human bodies while the binders are heated. In particular, the present inventions provide a method for forming molds and a core comprising an aggregate material mixture consisting of granular aggregate materials, wherein the aqueous binders and water are foamed with stirring, filled into a space for forming molds, and caked with an evaporating water component. In an embodiment, molds can be further cured by adding cross linking agents before and after they are taken out from the space for forming. Further, an aggregate material mixture for forming molds used for the method for forming molds of the present inventions is provided.Type: GrantFiled: November 2, 2011Date of Patent: September 10, 2013Assignee: Sintokogio, Ltd.Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa
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Patent number: 8490677Abstract: The present inventions provide a method for forming molds and a core which generates no gases with bad effects on the human bodies while the binders are heated. In particular, the present inventions provide a method for forming molds and a core comprising an aggregate material mixture consisting of granular aggregate materials, wherein the aqueous binders and water are foamed with stirring, filled into a space for forming molds, and caked with an evaporating water component. In an embodiment, molds can be further cured by adding cross linking agents before and after they are taken out from the space for forming. Further, an aggregate material mixture for forming molds used for the method for forming molds of the present inventions is provided.Type: GrantFiled: August 31, 2004Date of Patent: July 23, 2013Assignee: Sintokogio, Ltd.Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa
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Publication number: 20120048503Abstract: The present inventions provide a method for forming molds and a core which generates no gases with bad effects on the human bodies while the binders are heated. In particular, the present inventions provide a method for forming molds and a core comprising an aggregate material mixture consisting of granular aggregate materials, wherein the aqueous binders and water are foamed with stirring, filled into a space for forming molds, and caked with an evaporating water component. In an embodiment, molds can be further cured by adding cross linking agents before and after they are taken out from the space for forming. Further, an aggregate material mixture for forming molds used for the method for forming molds of the present inventions is provided.Type: ApplicationFiled: November 2, 2011Publication date: March 1, 2012Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa
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Patent number: 8109319Abstract: A molding process which comprises mixing together a particulate aggregate, plural kinds of water-soluble binders, a crosslinking agent causing crosslinking reaction with the binders, a phenol resin, and water, agitating the obtained mixture to prepare a bubbled fluid aggregate mixture, filling the aggregate mixture into a molding cavity, and solidifying the aggregate mixture through the evaporation of water from the mixture to give a mold made from the mixture.Type: GrantFiled: June 29, 2005Date of Patent: February 7, 2012Assignee: Sintokogio, Ltd.Inventors: Norihiro Asano, Toshihiko Zenpo, Masaya Hotta, Kazuyuki Nishikawa
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Patent number: 8034265Abstract: There are provided a dry aggregate mixture wherein the binder, even when heated, does not evolve unpleasant odor or gas hazardous to human health; a method of foundry molding wherein a space for foundry molding, up to minute portion thereof, can satisfactorily be filled with an aggregate mixture composed of a binder and granular aggregate; and a method of foundry molding wherein the mold used in molding of an aggregate mixture composed of a binder and granular aggregate can retain satisfactory properties even in high humidity. In the method of foundry molding, a mold is formed by the use of a dry mixture obtained by providing an aggregate mixture composed of granular aggregate, a water soluble binder and water and evaporating the water contained in the aggregate mixture through heating, pressure reduction or aeration while mixing so as to effect separation into single granules, or with the addition of a lubricant and a crosslinking agent thereto.Type: GrantFiled: January 7, 2009Date of Patent: October 11, 2011Assignee: Sintokogio, Ltd.Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa
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Patent number: 8029614Abstract: There are provided a dry aggregate mixture wherein the binder, even when heated, does not evolve unpleasant odor or gas hazardous to human health; a method of foundry molding wherein a space for foundry molding, up to minute portion thereof, can satisfactorily be filled with an aggregate mixture composed of a binder and granular aggregate; and a method of foundry molding wherein the mold used in molding of an aggregate mixture composed of a binder and granular aggregate can retain satisfactory properties even in high humidity. In the method of foundry molding, a mold is formed by the use of a dry mixture obtained by providing an aggregate mixture composed of granular aggregate, a water soluble binder and water and evaporating the water contained in the aggregate mixture through heating, pressure reduction or aeration while mixing so as to effect separation into single granules, or with the addition of a lubricant and a crosslinking agent thereto.Type: GrantFiled: September 2, 2009Date of Patent: October 4, 2011Assignee: Sintokogio, Ltd.Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa
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Patent number: 7906049Abstract: A method for filling a foam mixture in a cavity of a metal mold, which can provide a mold without defects.Type: GrantFiled: November 8, 2006Date of Patent: March 15, 2011Assignee: Sintokogio, Ltd.Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Kazuyuki Nishikawa, Toshio Kanno, Shinji Sonoyama
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Patent number: 7766543Abstract: A method is disclosed that monitors and controls the condition of an expandable mixture before injecting it in a mold and that maintains the conditions for filling so as to make a casting mold having a uniform strength. The method comprises (a) a step of measuring the temperature of the expandable mixture, (b) a step of determining each reference value of the one or more characteristic parameters that show a characteristic property of the expandable mixture based on the measured temperature and the predetermined relationship between a characteristic property of an expandable mixture and its temperature, (c) a step of measuring the one or more characteristic parameters that show the condition of the mixing of the expandable mixture, (d) a step of determining whether each characteristic parameter is within the corresponding reference value, and (e) a step of determining whether the expandable mixture has been made under the normal condition or if it needs to be adjusted.Type: GrantFiled: June 9, 2006Date of Patent: August 3, 2010Assignee: Sintokogio, Ltd.Inventors: Yusuke Kato, Toshihiko Zenpo, Norihiro Asano, Kazuyuki Nishikawa
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Publication number: 20100064935Abstract: There are provided a dry aggregate mixture wherein the binder, even when heated, does not evolve unpleasant odor or gas hazardous to human health; a method of foundry molding wherein a space for foundry molding, up to minute portion thereof, can satisfactorily be filled with an aggregate mixture composed of a binder and granular aggregate; and a method of foundry molding wherein the mold used in molding of an aggregate mixture composed of a binder and granular aggregate can retain satisfactory properties even in high humidity. In the method of foundry molding, a mold is formed by the use of a dry mixture obtained by providing an aggregate mixture composed of granular aggregate, a water soluble binder and water and evaporating the water contained in the aggregate mixture through heating, pressure reduction or aeration while mixing so as to effect separation into single granules, or with the addition of a lubricant and a crosslinking agent thereto.Type: ApplicationFiled: September 2, 2009Publication date: March 18, 2010Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa
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Publication number: 20100001424Abstract: This invention intends to provide a method for filling a foam mixture in a cavity of a metal mold, which method can produce a mold without defects.Type: ApplicationFiled: November 8, 2006Publication date: January 7, 2010Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Kazuyuki Nishikawa, Toshio Kanno, Shinji Sonoyama
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Publication number: 20090211725Abstract: A molding process which comprises mixing together a particulate aggregate, plural kinds of water-soluble binders, a crosslinking agent causing crosslinking reaction with the binders, a phenol resin, and water, agitating the obtained mixture to prepare a bubbled fluid aggregate mixture, filling the aggregate mixture into a molding cavity, and solidifying the aggregate mixture through the evaporation of water from the mixture to give a mold made from the mixture.Type: ApplicationFiled: June 29, 2005Publication date: August 27, 2009Inventors: Norihiro Asano, Toshihiko Zenpo, Masaya Hotta, Kazuyuki Nishikawa
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Publication number: 20090127730Abstract: There are provided a dry aggregate mixture wherein the binder, even when heated, does not evolve unpleasant odor or gas hazardous to human health; a method of foundry molding wherein a space for foundry molding, up to minute portion thereof, can satisfactorily be filled with an aggregate mixture composed of a binder and granular aggregate; and a method of foundry molding wherein the mold used in molding of an aggregate mixture composed of a binder and granular aggregate can retain satisfactory properties even in high humidity. In the method of foundry molding, a mold is formed by the use of a dry mixture obtained by providing an aggregate mixture composed of granular aggregate, a water soluble binder and water and evaporating the water contained in the aggregate mixture through heating, pressure reduction or aeration while mixing so as to effect separation into single granules, or with the addition of a lubricant and a crosslinking agent thereto.Type: ApplicationFiled: January 7, 2009Publication date: May 21, 2009Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa
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Publication number: 20090092171Abstract: A method is disclosed that monitors and controls the condition of an expandable mixture before injecting it in a mold and that maintains the conditions for filling so as to make a casting mold having a uniform strength. The method comprises (a) a step of measuring the temperature of the expandable mixture, (b) a step of determining each reference value of the one or more characteristic parameters that show a characteristic property of the expandable mixture based on the measured temperature and the predetermined relationship between a characteristic property of an expandable mixture and its temperature, (c) a step of measuring the one or more characteristic parameters that show the condition of the mixing of the expandable mixture, (d) a step of determining whether each characteristic parameter is within the corresponding reference value, and (e) a step of determining whether the expandable mixture has been made under the normal condition or if it needs to be adjusted.Type: ApplicationFiled: June 9, 2006Publication date: April 9, 2009Inventors: Yusuke Kato, Toshihiko Zenpo, Norihiro Asano, Kazuyuki Nishikawa
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Patent number: 7500840Abstract: An apparatus for molding a mold by pressurizing a foam mixture composed of particles of aggregate, water-soluble binders, and water, and injecting it into a cavity of a heated metal mold that includes a hollow rectangular-parallelepiped body 12 having a bottom plate 14, the bottom plate 14 having an injection hole 13 to inject the foam mixture, a device 10 for containing the foam mixture having functions as a mixing bath to mix particles of aggregate, water-soluble binders, and water, and as a pressurized vessel to inject the foam mixture into the metal mold, and a device 22 for closing and opening the injection hole 13. The apparatus is further provided with a device for measuring a temperature of the particles of aggregate or the foam mixture, the viscosity, and the moisture and a device for communicating gases from the cavity of the metal mold to the outside of the mold so that the particles of aggregate cannot pass through it.Type: GrantFiled: March 22, 2005Date of Patent: March 10, 2009Assignee: Sintokogio, Ltd.Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa, Motoyasu Tanaka
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Publication number: 20070196529Abstract: This invention relates to an apparatus for molding a mold by pressurizing a foam mixture composed of particles of aggregate, water-soluble binders, and water, and injecting it into a cavity of a heated metal mold. This invention provides an apparatus which can use a foam mixture effectively, can fill the cavity of the metal mold with enough of a foam mixture, and can shorten the time to harden the foam mixture. To achieve these effects, the apparatus for molding a mold is comprised of a hollow rectangular-parallelepiped body 12 having a bottom plate 14, the bottom plate 14 having an injection hole 13 to inject the foam mixture, a means 10 for containing the foam mixture having functions as a mixing bath to mix particles of aggregate, water-soluble binders, and water, and as a pressurized vessel to inject the foam mixture into a metal mold, and a means 22 for closing and opening the injection hole 13.Type: ApplicationFiled: March 22, 2005Publication date: August 23, 2007Inventors: Toshihiko Zenpo, Yusuke Kato, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa, Motoyasu Tanaka
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Publication number: 20070137825Abstract: A casting process that employs a collapse-prone core is disclosed. The process includes the steps of mixing one or more kind of an aggregate granular material, one or more kind of a water-soluble binder, and water, to form a mixture of the aggregate granular material, and stirring the mixture to cause it to foam. Such a mixture prevents the generation of undesirable gases when molding a mold and pouring molten metal into the mold.Type: ApplicationFiled: February 23, 2005Publication date: June 21, 2007Inventors: Yusuke Kato, Toshihiko Zenpo, Norihiro Asano, Masahiko Nagasaka, Kazuyuki Nishikawa