Patents by Inventor Tatsuya Hashimoto
Tatsuya Hashimoto 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: 20080032904Abstract: A perfluoropolyether oil composition, which comprises a perfluoropolyether base oil, preferably a thickener-containing perfluoropolyether base oil, and a fluorine-containing di- or mono-amide-based compound having a perfluoropolyether group, where 0.01 to 50% by weight of the amide-based compound, based on total weight of the base oil and the amide-based compound, is contained when the perfluoropolyether oil composition is used as a lubricating oil composition, particularly grease, and 0.01 to 90% by weight thereof is contained, when the perfluoropolyether oil composition is used as an electrode-coating agent for a cell. The perfluoropolyether oil composition shows a metal surface protective action against corrosive gases such as sulfide gases, etc. without deteriorating the abrasion resistance, and also shows a distinguished high temperature durability even in the presence of graphite or molybdenum disulfide.Type: ApplicationFiled: August 30, 2005Publication date: February 7, 2008Inventors: Yuji Watanabe, Yasumichi Kido, You Doi, Miyuki Hashida, Toshio Nitta, Tatsuya Hashimoto, Akira Otani, Jiro Yurimoto
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Publication number: 20070298988Abstract: A lubricating oil composition, which comprises a perfluoropolyether base oil, and a fluorine-containing polyether diphosphonic acid ester, represented by the following general formula: (R2O)(R1O)P(O)(CH2)aCF(CF3) [OCF2CF(CF3)]bO(CF2)cO [CF(CF3)CF2O]dCF(CF3)(CH2)eP(O)(OR3)(OR4) (where R1, R2, R3, and R4 are hydrogen atoms, alkyl groups, cycloalkyl groups, aryl groups, alkylaryl groups, aralkyl groups, or any of the foregoing groups can be halogen atom-substituted groups, subscripts a, b, c, d, and e are in conditions of 2?a+e?8, b+d?28, and 1?c?10, and b and d can be 0), and a grease composition which further contains a thickening agent in addition to the lubricating oil composition, have distinguished abrasion resistance and rust preventiveness without deteriorating the heat resistance inherent in the lubricating oil and the grease containing a perfluoropolyether oil as a base oil.Type: ApplicationFiled: November 24, 2005Publication date: December 27, 2007Inventors: Akihiko Shimura, Tatsuya Hashimoto
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Publication number: 20070243462Abstract: A generally oval battery including a battery case (2) having a generally oval cross section, a generally oval sealing plate (3) and an electrode plate assembly, the sealing plate (3) having a U-shaped cross section and the battery having a thickness of 4 mm or more and an aspect ratio of 3 or more, whereby the control of a vent for discharging gas that is generated in the battery is made easy and a battery is provided which has a discharge mechanism capable of discharging gas easily and safely, without requiring expensive equipment or many processing steps.Type: ApplicationFiled: February 16, 2005Publication date: October 18, 2007Applicant: C/O MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Masatomo Nagatani, Tatsuya Hashimoto
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Publication number: 20070213240Abstract: A lubricating grease composition, which comprises a base oil consisting of a mixture of 100 parts by weight of at least one of a perfluoropolyether oil (A), represented by RfO[CF(CF3)CF2O]p(CF2CF2O)qRf (where Rf is a perfluoroalkyl group having 1-5 carbon atoms, p+q=2-200, q/p=0-2, and q may be 0), and a perfluoropolyether oil (B), represented by F(CF2CF2CF2O)sC2F5 (where s=2-100), and 0-100 parts by weight of at least one of a perfluoropolyether oil (C), represented by RfO(CF2CF2O)m(CF2O)nRf (where m+n=3-200 and m:n=10-90:90-10), and a perfluoropolyether oil (D), represented by RfO[CF(CF3)CF2O]a(CF2CF3O)b(CF2O)cRf (where a+b+c=3-200, b is 0 or an integer of 1 or more, and c is an integer of 1 or more), preferably further admixed with a thickening agent, can suppress corrosion of metallic materials by corrosive gases and also has a good heat resistance.Type: ApplicationFiled: June 20, 2005Publication date: September 13, 2007Inventors: Akihiko Shimura, Tetsuhiro Kitahara, Tatsuya Hashimoto
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Publication number: 20070187833Abstract: Disclosed is a method of fabricating a semiconductor memory device including the step of irradiating ultraviolet rays on a metal interconnection at a bonding pad part, so that the metal interconnection can be prevented from being corroded because of a corrodent element in the process of erasing charges stored in a charge storage part. An oxide coating film is formed on the surface of the metal interconnection at the bonding pad part, and ultraviolet rays are irradiated onto the oxide coating film for erasing of charges from the floating gate.Type: ApplicationFiled: April 10, 2007Publication date: August 16, 2007Applicant: Fujitsu Amd Semiconductor LimitedInventors: Tatsuya Hashimoto, Toshiyuki Maenosono, Taji Togawa, Takayuki Enda, Hideo Takagi
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Patent number: 7192671Abstract: In a battery having a structure that an electrode plate group, formed by winding a positive electrode plate and a negative electrode plate with a separator interposed therebetween, is housed in a battery case together with an electrolyte solution, the electrode plate group is rolled around a roll core, and both ends of the roll core are supported by the battery case.Type: GrantFiled: March 24, 2003Date of Patent: March 20, 2007Assignee: Matsushita Electrical Industrial Co., Ltd.Inventors: Tatsuya Hashimoto, Kenji Kimura, Seiichi Uemoto, Hironori Yukisada, Masatomo Nagatani, Takabumi Fujii
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Publication number: 20070009785Abstract: In a closure assembly for sealed rechargeable batteries, upon a metallic foil is placed a spacer having an aperture that is larger than an upwardly protruding portion of the foil but smaller than the outside diameter of the foil, and upon a metallic safety vent is placed either a spacer and a metallic cap, or a metallic cap only, the spacer and/or metallic cap having an aperture that is larger than a downwardly protruding portion of the safety vent but smaller than the outside diameter of the safety vent, so as to control and suppress deformation of the metallic foil and safety vent in the event of abnormal battery pressure increasing due to overcharging or the like and to ensure that rupture occurs at a predetermined pressure level, whereby a sealed rechargeable battery suitable for high-output applications and having high safety features is provided.Type: ApplicationFiled: July 11, 2006Publication date: January 11, 2007Inventors: Kiyomi Kozuki, Kouki Inoue, Yasushi Hirakawa, Tatsuya Hashimoto
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Patent number: 7150942Abstract: A negative electrode current collector for a non-aqueous electrolyte secondary battery comprising copper or a copper alloy, characterized in that the copper or copper alloy has a ratio I200/I111 of an intensity I200 of a peak attributed to (200) plane to an intensity I111 of a peak attributed to (111) plane, which satisfies the equation (1): 0.3?I200/I111?4.0??(1) in an X-ray diffraction pattern measured using CuK? radiation as a radiation source.Type: GrantFiled: August 8, 2002Date of Patent: December 19, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tatsuya Hashimoto, Yorihito Ohana
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Publication number: 20060275657Abstract: A sealed rechargeable battery containing an electrode unit and a liquid electrolyte in a metallic case with a bottom that is sealed with a closure assembly. The electrode unit includes a positive electrode and a negative electrode, each made up of a collector and electrode material paste coated thereon, wound around with a separator interposed therebetween. The closure assembly includes a metallic filter that forms an internal terminal and accommodates a safety mechanism provided in case of abnormal pressure rise caused by overcharging etc, a resin inner gasket, and a metallic cap that forms an external terminal superposed upon one another. A resin inner gasket is attached to the metallic filter and the end edge of the metallic filter is crimped to provide a seal. The metallic filter and all the metallic parts encased in the metallic filter are joined together by welding. This closure assembly design enables high power output and high-current discharge of the battery with low resistance.Type: ApplicationFiled: May 16, 2006Publication date: December 7, 2006Inventors: Kiyomi Kozuki, Tatsuya Hashimoto, Koki Inoue, Yasushi Hirakawa
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Publication number: 20060264859Abstract: A pull-on disposable wearing article is provided with a chassis and an absorbent batt structure extending on the inner surface of the chassis. The chassis has a front waist region, a rear waist region and a crotch region and is composed of a base sheet which is substantially not elastically extensible/contractible, and first and second outer sheets stretched in a transverse direction and bonded in such a stretched state to outer surfaces of the base sheet in the front and rear waist regions, respectively, and being elastically extendible/contractible in the transverse direction. An absorbent batt structure is laid inside the chassis. The base sheet defining an inner surface of the chassis is formed with gathers as the first and second outer sheets contract.Type: ApplicationFiled: May 18, 2006Publication date: November 23, 2006Applicant: UNI-CHARM CORPORATIONInventors: Tomoko Tsuji, Hirotomo Mukai, Akiyoshi Kinoshita, Tatsuya Hashimoto
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Publication number: 20050153194Abstract: A battery, suitable for forming a battery pack, includes an electrode assembly having a positive electrode plate and a negative electrode plate, and a separator wound or laminated together, core materials of the negative and positive electrode plates being bared respectively at either end. A bottomed cylindrical outer case having a bottom is connected to either end face of the electrode assembly to serve as a battery terminal. Electrolyte is impregnated in the electrode assembly and a lid is connected to the other end face of the electrode assembly and fixedly attached to the outer case with a sealer and an insulator interposed therebetween. A connecting part is a part of the lid so that the connecting part engages with and connects to a bottom part of the outer case of another battery.Type: ApplicationFiled: December 26, 2002Publication date: July 14, 2005Inventors: Kenji Kimura, Tatsuya Hashimoto, Takabumi Fujii, Seiichi Uemoto, Hironori Yukisada, Masatomo Nagatani
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Publication number: 20050118501Abstract: A prismatic battery with highly reliable sealing properties and its manufacturing method, wherein a negative collector is welded to one end of an electrode plate group accommodated in a prismatic case, the collector being connected to an electrode pole that functions as the negative electrode terminal, and the electrode pole is fitted into a support cylinder that is provided on an upper lid for closing one open end of the case. An insulating gasket is interposed between an inner periphery of the support cylinder and an outer periphery of the electrode pole, the support cylinder being formed with at least one annular crimped portion that has an arc-shaped longitudinal cross section.Type: ApplicationFiled: November 26, 2004Publication date: June 2, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Tatsuya Hashimoto, Masatomo Nagatani, Hiroaki Ichinose
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Publication number: 20050006672Abstract: Disclosed is a method of fabricating a semiconductor memory device including the step of irradiating ultraviolet rays on a metal interconnection at a bonding pad part, so that the metal interconnection can be prevented from being corroded because of a corrodent element in the process of erasing charges stored in a charge storage part. An oxide coating film is formed on the surface of the metal interconnection at the bonding pad part, and ultraviolet rays are irradiated onto the oxide coating film for erasing of charges from the floating gate.Type: ApplicationFiled: August 12, 2004Publication date: January 13, 2005Applicant: Fujitsu AMD Semiconductor LimitedInventors: Tatsuya Hashimoto, Toshiyuki Maenosono, Taiji Togawa, Takayuki Enda, Hideo Takagi
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Patent number: 6794248Abstract: Disclosed is a method of fabricating a semiconductor memory device including the step of irradiating ultraviolet rays on a metal interconnection at a bonding pad part, so that the metal interconnection can be prevented from being corroded because of a corrodent element in the process of erasing charges stored in a charge storage part. An oxide coating film is formed on the surface of the metal interconnection at the bonding pad part, and ultraviolet rays are irradiated onto the oxide coating film for erasing of charges from the floating gate.Type: GrantFiled: October 25, 2002Date of Patent: September 21, 2004Assignee: Fujitsu Amd Semiconductor LimitedInventors: Tatsuya Hashimoto, Toshiyuki Maenosono, Taiji Togawa, Takayuki Enda, Hideo Takagi
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Patent number: 6787266Abstract: A battery, in which measures are taken to suppress a reduction in charge/discharge capacity and degradation of load characteristics due to peeling of an active material off the current collector during repeated charging and discharging, is disclosed. Boehmite treatment or chromate treatment of the current collector surface of the electrode plate for the battery suppresses the degradation of charge/discharge capacity and load characteristics.Type: GrantFiled: April 21, 2001Date of Patent: September 7, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tatsuya Hashimoto, Hiroyuki Murai, Yorihito Ohana, Hiroshi Matsuno, Hideya Asano
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Patent number: 6723684Abstract: There is provided a grease composition useful for bearings of cars and aircraft which is stable in a wide range of temperature of 40 to 180° C. and exhibits low torque properties under high loading at low temperatures. A low torque grease composition having dynamic viscosity (40° C.) of 40 to 150 mm2/sec which comprises a base oil consisting of (a) straight-chain perfluoropolyether oil having dynamic viscosity (40° C.) of 25 mm2/sec or less and represented by the following general formula: RfO(CF2O)p(C2F4O)q(C3F6O)rRf, wherein Rf is a perfluoro lower alkyl group and all of p, q and r is an integer and a sum thereof is an integer of 25 to 45 and (b) straight-chain perfluoropolyether oil having dynamic viscosity (40° C.) of 250 mm2/sec or more and represented by the following general formula: RfO(CF2O)p(C2F4O)q(C3F6O)rRf, wherein Rf is a perfluoro lower alkyl group and p, q and r are an integer of 10 to 20; and (c) polytetrafluoroethylene as a thickener.Type: GrantFiled: January 3, 2003Date of Patent: April 20, 2004Assignee: Minebea Co., Ltd.Inventors: Motoharu Akiyama, Tatsuya Hashimoto
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Publication number: 20040072079Abstract: A negative electrode current collector for a non-aqueous electrolyte secondary battery comprising copper or a copper alloy, characterized in that the copper or copper alloy has a ratio I200/I111 of an intensity I200 of a peak attributed to (200) plane to an intensity I111 of a peak attributed to (111) plane, which satisfies the equation (1):Type: ApplicationFiled: September 3, 2003Publication date: April 15, 2004Inventors: Tatsuya Hashimoto, Yorihito Ohana
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Publication number: 20030186113Abstract: In a battery having a structure that an electrode plate group, formed by winding a positive electrode plate and a negative electrode plate with a separator interposed therebetween, is housed in a battery case together with an electrolyte solution, the electrode plate group is rolled around a roll core, and both ends of the roll core are supported by the battery case.Type: ApplicationFiled: March 24, 2003Publication date: October 2, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Tatsuya Hashimoto, Kenji Kimura, Seiichi Uemoto, Hironori Yukisada, Masatomo Nagatani, Takabumi Fujii
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Publication number: 20030162354Abstract: Disclosed is a method of fabricating a semiconductor memory device including the step of irradiating ultraviolet rays on a metal interconnection at a bonding pad part, so that the metal interconnection can be prevented from being corroded because of a corrodent element in the process of erasing charges stored in a charge storage part. An oxide coating film is formed on the surface of the metal interconnection at the bonding pad part, and ultraviolet rays are irradiated onto the oxide coating film for erasing of charges from the floating gate.Type: ApplicationFiled: October 25, 2002Publication date: August 28, 2003Applicant: FUJITSU AMD SEMICONDUCTOR LIMITEDInventors: Tatsuya Hashimoto, Toshiyuki Maenosono, Taiji Togawa, Takayuki Enda, Hideo Takagi
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Publication number: 20030148896Abstract: There is provided a grease composition useful for bearings of cars and aircraft which is stable in a wide range of temperature of 40 to 180° C. and exhibits low torque properties under high loading at low temperatures. A low torque grease composition having dynamic viscosity (40° C.) of 40 to 150 mm2/sec which comprises a base oil consisting of (a) straight-chain perfluoropolyether oil having dynamic viscosity (40° C.) of 25 mm2/sec or less and represented by the following general formula: RfO(CF2O)p(C2F4O)q(C3F6O)rRf, wherein Rf is a perfluoro lower alkyl group and all of p, q and r is an integer and a sum thereof is an integer of 25 to 45 and (b) straight-chain perfluoropolyether oil having dynamic viscosity (40° C.) of 250 mm2/sec or more and represented by the following general formula: RfO(CF2O)p(C2F4O)q(C3F6O)rRf, wherein Rf is a perfluoro lower alkyl group and p, q and r are an integer of 10 to 20; and (c) polytetrafluoroethylene as a thickener.Type: ApplicationFiled: January 3, 2003Publication date: August 7, 2003Inventors: Motoharu Akiyama, Tatsuya Hashimoto