Patents by Inventor Akiko Yuasa
Akiko Yuasa 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: 20100242735Abstract: A jacket material into which a gas adsorbing device and core material are inserted is decompressed in a vacuum chamber, the opening is sealed, and then the jacket material is exposed to the atmosphere. In the atmospheric pressure, a pressure of about 1 atm which is equivalent to the pressure difference between the inside and outside is applied to the jacket material of the heat insulator. The jacket material is made of a plastic laminated film and is deformed by pressure. A protruding portion is plunged into a container to drill through holes, and a gas adsorbent in the container communicates with the inside of the jacket material. Thus, both during holding and in applying to the vacuum heat insulator, the gas adsorbent can be applied to the vacuum heat insulator without degradation, and the high degree of vacuum can be kept for a long time.Type: ApplicationFiled: June 8, 2010Publication date: September 30, 2010Applicant: PANASONIC CORPORATIONInventors: Masamichi Hashida, Kazutaka Uekado, Akiko Yuasa
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Publication number: 20090274617Abstract: An absorbent of ZSM-5 zeolite ion-exchanged with copper ion, characterized in that at least 60% or more of the copper sites in the copper ion-exchanged ZSM-5 zeolite are copper (I) sites and preferably at least 70% or more of the copper (I) sites are three-oxygen-coordinated copper (I) sites.Type: ApplicationFiled: April 26, 2006Publication date: November 5, 2009Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventors: Akiko Yuasa, Yasushige Kuroda, Mahiko Nagao, Atsushi Itadani
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Patent number: 7611761Abstract: Vacuum heat insulating material having core material consisting of inorganic fibers and exterior covering material for storing the core material. The inorganic fibers include silicon oxide as a main component. The surface of the inorganic fibers has Si—OH/Si—O ratio equal to or higher than 0.1 and equal to or lower than 20. The vacuum heat insulating material has intersecting points at which the fibers are adhered to one another by an intermolecular interaction due to Si—OH groups.Type: GrantFiled: August 20, 2004Date of Patent: November 3, 2009Assignee: Panasonic CorporationInventors: Akiko Yuasa, Yasuaki Tanimoto
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Publication number: 20090169869Abstract: The present invention relates to a gas-absorbing substance that contains at least Li and a solid material having a hardness of 5 or more, and absorbs at least nitrogen or oxygen at 25° C.Type: ApplicationFiled: January 13, 2006Publication date: July 2, 2009Inventors: Chie Hirai, Kazutaka Uekado, Akiko Yuasa, Akihiro Nozue, Hideyuki Okumura, Keiichi Ishihara, Eiji Yamasue
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Publication number: 20090090242Abstract: A jacket material into which a gas adsorbing device and core material are inserted is decompressed in a vacuum chamber, the opening is sealed, and then the jacket material is exposed to the atmosphere. In the atmospheric pressure, a pressure of about 1 atm which is equivalent to the pressure difference between the inside and outside is applied to the jacket material of the heat insulator. The jacket material is made of a plastic laminated film and is deformed by pressure. A protruding portion is plunged into a container to drill through holes, and a gas adsorbent in the container communicates with the inside of the jacket material. Thus, both during holding and in applying to the vacuum heat insulator, the gas adsorbent can be applied to the vacuum heat insulator without degradation, and the high degree of vacuum can be kept for a long time.Type: ApplicationFiled: September 22, 2006Publication date: April 9, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Masamichi Hashida, Kazutaka Uekado, Akiko Yuasa
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Patent number: 7485352Abstract: A radiation heat transfer suppressor for inhibiting heat transfer by infrared rays is provided on the external surface of the enveloping member of a vacuum heat insulator. In heat-blocking or keep warm using a vacuum heat insulator, a surface having a radiation heat transfer suppressor is faced to a high-temperature side. Thus, the vacuum heat insulator exhibits excellent heat-insulating performance in a temperature range of 150° C. or higher.Type: GrantFiled: June 24, 2004Date of Patent: February 3, 2009Assignee: Panasonic CorporationInventors: Akiko Yuasa, Shinya Kojima
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Publication number: 20090007789Abstract: An adsorbent capable of adsorbing gas low in activity such as nitrogen is used, and a thermal insulator high in production efficiency and excellent in adiabatic performance is presented. A thermal insulator has an adsorbent, a core material, and an enveloping member. The adsorbent includes Li and solid matter of hardness of 5 or more. The gas adsorbing activity becomes very high, and for embodiment by evacuating to a certain degree of vacuum by using a vacuum pump, the remaining gas is adsorbed by the adsorbent of the invention to obtain a desired degree of vacuum, so that a thermal insulator of high production efficiency is obtained. Since the heat conductivity is decreased by adsorbing gas of low activity in the enveloping member, the adiabatic performance is enhanced.Type: ApplicationFiled: January 27, 2006Publication date: January 8, 2009Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Chie Hirai, Kazutaka Uekado, Akiko Yuasa
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Publication number: 20080160291Abstract: The present invention relates to a gas-absorbing substance that contains at least Li and a solid material having a hardness of 5 or more, and absorbs at least nitrogen or oxygen at 25° C.Type: ApplicationFiled: January 13, 2006Publication date: July 3, 2008Inventors: Chie Hirai, Kazutaka Uekado, Akiko Yuasa, Akihiro Nozue, Hideyuki Okumura, Keiichi Ishihara, Eiji Yamasue
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Publication number: 20070059499Abstract: Provided are a film for suppressing conduction of radiation heat to sustain an infrared-ray-reflective capability over a long term and exhibit an excellent radiation-heat suppressivity, and a heat-insulating material using the same. A film for suppressing conduction of radiation heat includes a resin film having at least an infrared-ray absorptivity of lower than 25%, an infrared-ray-reflection layer and an adhesive layer, wherein an infrared-ray reflectivity is 50% or higher.Type: ApplicationFiled: June 17, 2004Publication date: March 15, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Akiko Yuasa, Shinya Kojima, Kazutaka Uekado
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Publication number: 20060263585Abstract: Vacuum heat insulating material having core material consisting of inorganic fibers and exterior covering material for storing the core material. The inorganic fibers include silicon oxide as a main component. The surface of the inorganic fibers has Si—OH/Si—O ratio equal to or higher than 0.1 and equal to or lower than 20. The vacuum heat insulating material has intersecting points at which the fibers are adhered to one another by an intermolecular interaction due to Si—OH groups.Type: ApplicationFiled: August 20, 2004Publication date: November 23, 2006Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Akiko Yuasa, Yasuaki Tanimoto
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Publication number: 20060163395Abstract: Refrigerators containing vacuum insulation material which has glass fiber assembly as the core material and rigid urethane foam are pulverized separately from refrigerators not containing vacuum insulation material, and the waste thermal insulation materials discharged from these types of refrigerators are stored in different recovery towers for waste thermal insulation materials. In an inorganic material content adjusting process, appropriate amounts are fed from the respective recovery towers into a mixer so as to prepare mixed waste materials whose inorganic material content has been adjusted. In the subsequent waste material processing process, the mixed waste materials with an adjusted percentage of inorganic material content are subjected to an appropriate powdering operation, and the resulting powder is sealed into a packaging member under a reduced pressure so as to obtain vacuum insulation material.Type: ApplicationFiled: August 6, 2003Publication date: July 27, 2006Inventor: Akiko Yuasa
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Publication number: 20060159436Abstract: A radiation heat transfer suppressor for inhibiting heat transfer by infrared rays is provided on the external surface of the enveloping member of a vacuum heat insulator. In heat-blocking or keep warm using a vacuum heat insulator, a surface having a radiation heat transfer suppressor is faced to a high-temperature side. Thus, the vacuum heat insulator exhibits excellent heat-insulating performance in a temperature range of 150° C. or higher.Type: ApplicationFiled: June 24, 2004Publication date: July 20, 2006Inventors: Akiko Yuasa, Shinya Kojima
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Patent number: 6938968Abstract: Vacuum heat insulator comprising a laminated core made of a plurality of sheets of inorganic fibers having 10 ?m or smaller in diameter and a certain composition including SiO2 as a main component, Al2O3, CaO, and MgO, a gas barrier enveloping member, and an absorbent. The vacuum heat insulator is characterized by having at least one groove formed therein after fabrication of the vacuum heat insulator. Further, the vacuum heat insulator is characterized by using inorganic fiber core of which a peak of distribution in fiber diameter lies between 1 ?m or smaller and 0.1 ?m or larger, and not containing binding material for binding the fiber material. Electronic apparatuses use the vacuum heat insulator. With use of the vacuum heat insulator, electronic and electric apparatuses superior in energy saving and not to present uncomfortable feeling to the user can be provided.Type: GrantFiled: April 23, 2001Date of Patent: September 6, 2005Assignee: Matsushita Refrigeration CompanyInventors: Yasuaki Tanimoto, Tomohisa Tenra, Masayuki Nakanishi, Akiko Yuasa
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Patent number: 6859364Abstract: A portable information device such as a notebook type computer is provided with a highly efficient thermal insulator capable of blocking transfer of heat between an internal heating component and a device enclosure, so as to reduce temperature rise on a surface of the device. The portable information device is also provided with a highly efficient thermal insulator to block transfer of heat between the heating component and an expansion unit mounting case, thereby reducing temperature rise and preventing malfunction of an external expansion unit. The information device includes the thermal insulator to separate between the internal heating component and the device enclosure, another thermal insulator to separate between the heating component and the expansion unit mounting case, and a heat sink. The thermal insulator is a vacuum thermal insulator including inorganic fiber as a core member.Type: GrantFiled: June 6, 2001Date of Patent: February 22, 2005Assignee: Matsushita Refrigeration CompanyInventors: Akiko Yuasa, Yasuaki Tanimoto, Chie Hirai
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Patent number: 6802997Abstract: The present invention provides a method of manufacturing a rigid polyurethane foam material, a method of manufacturing a refrigerator using the material, and a refrigerator manufactured by the same method. The method includes recovering highly purified rigid polyurethane foam from a scrapped refrigerator, and decomposing the rigid polyurethane foam for recycling. The method includes steps of: shredding a scrapped refrigerator containing rigid polyurethane foam in order to separate rigid polyurethane foam lumps; grinding the rigid polyurethane foam lumps into a rigid polyurethane foam powder; liquefying the rigid polyurethane foam powder by either aminolysis reaction or glycolysis reaction; reacting thus obtained liquefied rigid polyurethane foam powder and supercritical/sub-critical water in order to decompose the rigid polyurethane foam powder into a crude material; and fractionating the crude material to obtain a raw material of rigid polyurethane foam.Type: GrantFiled: November 8, 2002Date of Patent: October 12, 2004Assignee: Matsushita Refrigeration CompanyInventors: Kazutaka Uekado, Akiko Yuasa
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Patent number: 6660779Abstract: The present invention provides a method of manufacturing a rigid polyurethane foam material, a method of manufacturing a refrigerator using the material, and a refrigerator manufactured by the same method. The method includes recovering highly purified rigid polyurethane foam from a scrapped refrigerator, and decomposing the rigid polyurethane foam for recycling. The method includes steps of: shredding a scrapped refrigerator containing rigid polyurethane foam in order to separate rigid polyurethane foam lumps; grinding the rigid polyurethane foam lumps into a rigid polyurethane foam powder; liquefying the rigid polyurethane foam powder by either aminolysis reaction or glycolysis reaction; reacting thus obtained liquefied rigid polyurethane foam powder and supercritical/sub-critical water in order to decompose the rigid polyurethane foam powder into a crude material; and fractionating the crude material to obtain a raw material of rigid polyurethane foam.Type: GrantFiled: April 24, 2001Date of Patent: December 9, 2003Assignee: Matsushita Refrigeration CompanyInventors: Kazutaka Uekado, Akiko Yuasa
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Publication number: 20030157284Abstract: Vacuum heat insulator comprising a laminated core made of a plurality of sheets of inorganic fibers having 10 &mgr;m or smaller in diameter and a certain composition including SiO2 as a main component, Al2O3, CaO, and MgO, a gas barrier enveloping member, and an absorbent. The vacuum heat insulator is characterized by having at least one groove formed therein after fabrication of the vacuum heat insulator. Further, the vacuum heat insulator is characterized by using inorganic fiber core of which a peak of distribution in fiber diameter lies between 1 &mgr;m or smaller and 0.1 &mgr;m or larger, and not containing binding material for binding the fiber material. Electronic apparatuses of the present invention use the vacuum heat insulator. With use of the vacuum heat insulator, electronic and electric apparatuses superior in energy saving and not to present uncomfortable feeling to the user can be provided.Type: ApplicationFiled: March 17, 2003Publication date: August 21, 2003Inventors: Yasuaki Tanimoto, Tomohisa Tenra, Masayuki Nakanishi, Akiko Yuasa
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Publication number: 20030134917Abstract: The present invention provides a method of manufacturing a rigid polyurethane foam material, a method of manufacturing a refrigerator using the material, and a refrigerator manufactured by the same method. The method includes recovering highly purified rigid polyurethane foam from a scrapped refrigerator, and decomposing the rigid polyurethane foam for recycling. The method includes steps of: shredding a scrapped refrigerator containing rigid polyurethane foam in order to separate rigid polyurethane foam lumps; grinding the rigid polyurethane foam lumps into a rigid polyurethane foam powder; liquefying the rigid polyurethane foam powder by either aminolysis reaction or glycolysis reaction; reacting thus obtained liquefied rigid polyurethane foam powder and supercritical/sub-critical water in order to decompose the rigid polyurethane foam powder into a crude material; and fractionating the crude material to obtain a raw material of rigid polyurethane foam.Type: ApplicationFiled: November 8, 2002Publication date: July 17, 2003Applicant: Matsushita Refrigeration CompanyInventors: Kazutaka Uekado, Akiko Yuasa
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Publication number: 20030043541Abstract: A portable information device such as a notebook type computer is provided with a highly efficient thermal insulator capable of blocking transfer of heat between an internal heating component and a device enclosure, so as to reduce temperature rise on a surface of the device. The portable information device is also provided with a highly efficient thermal insulator to block transfer of heat between the heating component and an expansion unit mounting case, thereby reducing temperature rise and preventing malfunction of an external expansion unit. The information device includes the thermal insulator to separate between the internal heating component and the device enclosure, another thermal insulator to separate between the heating component and the expansion unit mounting case, and a heat sink. The thermal insulator is a vacuum thermal insulator including inorganic fiber as a core member.Type: ApplicationFiled: May 24, 2002Publication date: March 6, 2003Inventors: Akiko Yuasa, Yasuaki Tanimoto, Chie Hirai
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Publication number: 20010036976Abstract: The present invention provides a method of manufacturing a rigid polyurethane foam material, a method of manufacturing a refrigerator using the material, and a refrigerator manufactured by the same method. The method includes recovering highly purified rigid polyurethane foam from a scrapped refrigerator, and decomposing the rigid polyurethane foam for recycling. The method includes steps of: shredding a scrapped refrigerator containing rigid polyurethane foam in order to separate rigid polyurethane foam lumps; grinding the rigid polyurethane foam lumps into a rigid polyurethane foam powder; liquefying the rigid polyurethane foam powder by either aminolysis reaction or glycolysis reaction; reacting thus obtained liquefied rigid polyurethane foam powder and supercritical/sub-critical water in order to decompose the rigid polyurethane foam powder into a crude material; and fractionating the crude material to obtain a raw material of rigid polyurethane foam.Type: ApplicationFiled: April 24, 2001Publication date: November 1, 2001Applicant: Matsushita Refrigeration CompanyInventors: Kazutaka Uekado, Akiko Yuasa