Patents by Inventor Hideyuki Nakajima
Hideyuki Nakajima 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: 20240093898Abstract: An air-conditioning system includes: an air-conditioning device; and a distribution device to distribute an update program to the air-conditioning device, the distribution device being connected to the air-conditioning device via a first network. Preferably, the distribution device is configured to receive distribution of the update program from a network server connected to the distribution device via a second network. The distribution device is configured to perform protocol conversion between a communication method of the first network and a communication method of the second network.Type: ApplicationFiled: February 3, 2021Publication date: March 21, 2024Inventors: Hideyuki NAKAJIMA, Takayuki TSUJI
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Patent number: 11441600Abstract: Provided is a sliding member for a journal bearing. The sliding member includes a back-metal layer and a sliding layer, and has a partially cylindrical shape. The sliding layer includes a synthetic resin and has a sliding surface. The sliding layer has a linear expansion coefficient KS in a direction parallel to a circumferential direction of the sliding member, a linear expansion coefficient KJ in a direction parallel to a center axis direction of the sliding member, and a linear expansion coefficient KT in a direction perpendicular to the sliding surface, and the linear expansion coefficients KS, KJ, and KT satisfy the following relations (1) and (2): Relation (1): 1.1?KS/KJ?2; and Relation (2): 1.3?KT/{(KS+KJ)/2}?2.5.Type: GrantFiled: January 27, 2021Date of Patent: September 13, 2022Assignee: DAIDO METAL COMPANY LTD.Inventor: Hideyuki Nakajima
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Patent number: 11441607Abstract: Provided is a sliding member for a thrust bearing. The sliding member includes a back-metal layer and a sliding layer, and has a partially annular shape. The sliding layer includes a synthetic resin and has a sliding surface. In a center line region of the sliding layer, the sliding layer has a linear expansion coefficient KS in a direction parallel to a circumferential direction of the sliding member, a linear expansion coefficient KJ in a direction parallel to a radial direction of the sliding member, and a linear expansion coefficient KT in a direction perpendicular to the sliding surface, and the linear expansion coefficients KS, KJ, and KT satisfy the following relations (1) and (2): Relation (1): 1.1?KS/KJ?2; and Relation (2): 1.3?KT/{(KS+KJ)/2}?2.5.Type: GrantFiled: January 27, 2021Date of Patent: September 13, 2022Assignee: DAIDO METAL COMPANY LTD.Inventor: Hideyuki Nakajima
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Publication number: 20210246937Abstract: Provided is a sliding member for a journal bearing. The sliding member includes a back-metal layer and a sliding layer, and has a partially cylindrical shape. The sliding layer includes a synthetic resin and has a sliding surface. The sliding layer has a linear expansion coefficient KS in a direction parallel to a circumferential direction of the sliding member, a linear expansion coefficient KJ in a direction parallel to a center axis direction of the sliding member, and a linear expansion coefficient KT in a direction perpendicular to the sliding surface, and the linear expansion coefficients KS, KJ, and KT satisfy the following relations (1) and (2): Relation (1): 1.1?KS/KJ?2; and Relation (2): 1.3?KT/{(KS+KJ)/2}?2.5.Type: ApplicationFiled: January 27, 2021Publication date: August 12, 2021Inventor: Hideyuki NAKAJIMA
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Publication number: 20210246944Abstract: Provided is a sliding member for a thrust bearing. The sliding member includes a back-metal layer and a sliding layer, and has a partially annular shape. The sliding layer includes a synthetic resin and has a sliding surface. In a center line region of the sliding layer, the sliding layer has a linear expansion coefficient KS in a direction parallel to a circumferential direction of the sliding member, a linear expansion coefficient KJ in a direction parallel to a radial direction of the sliding member, and a linear expansion coefficient KT in a direction perpendicular to the sliding surface, and the linear expansion coefficients KS, KJ, and KT satisfy the following relations (1) and (2): Relation (1): 1.1?KS/KJ?2; and Relation (2): 1.3?KT/{(KS+KJ)/2}?2.5.Type: ApplicationFiled: January 27, 2021Publication date: August 12, 2021Inventor: Hideyuki NAKAJIMA
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Patent number: 8241022Abstract: A rotation-preventing member has an annular main body, first keys, and second keys. The first keys face one another across a main body axis, and extend to one side along an axial direction of the main body. The first keys have first surfaces that include the axial direction and a radial direction of the main body. The second keys face one another across an imaginary surface being parallel to the first surfaces and including the axis, and the second keys extend to the same side as the first keys extend to or the side opposite to the first keys along the axial direction. The second keys also have third surfaces orthogonal to the first surfaces and including the axial direction. Of the first keys and second keys, at least the first keys are provided with recesses that open onto end surfaces on the side toward which the keys extend.Type: GrantFiled: September 19, 2007Date of Patent: August 14, 2012Assignee: Daikin Industries, Ltd.Inventor: Hideyuki Nakajima
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Patent number: 7892051Abstract: A terminal cover includes a claw portion and a covering portion. The claw portion is able to engage with an opening provided on a terminal guard that is arranged to stand around a terminal protruding outward from the casing of a compressor. The covering portion covers all pathways to the terminal from the opening when the claw portion is engaged with the opening.Type: GrantFiled: November 22, 2006Date of Patent: February 22, 2011Assignee: Daikin Industries, Ltd.Inventor: Hideyuki Nakajima
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Publication number: 20100050122Abstract: A rotation-preventing member has an annular main body, first keys, and second keys. The first keys face one another across a main body axis, and extend to one side along an axial direction of the main body. The first keys have first surfaces that include the axial direction and a radial direction of the main body. The second keys face one another across an imaginary surface being parallel to the first surfaces and including the axis, and the second keys extend to the same side as the first keys extend to or the side opposite to the first keys along the axial direction. The second keys also have third surfaces orthogonal to the first surfaces and including the axial direction. Of the first keys and second keys, at least the first keys are provided with recesses that open onto end surfaces on the side toward which the keys extend.Type: ApplicationFiled: September 19, 2007Publication date: February 25, 2010Applicant: Daikin Industries, Ltd.Inventor: Hideyuki Nakajima
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Publication number: 20090233498Abstract: A terminal cover includes a claw portion and a covering portion. The claw portion is able to engage with an opening provided on a terminal guard that is arranged to stand around a terminal protruding outward from the casing of a compressor. The covering portion covers all pathways to the terminal from the opening when the claw portion is engaged with the opening.Type: ApplicationFiled: November 22, 2006Publication date: September 17, 2009Applicant: DAIKIN INDUSTRIES, LTD.Inventor: Hideyuki Nakajima
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Publication number: 20080292815Abstract: The present invention provides a method for producing a resin-coated sliding member in which problems such as blistering do not occur even if drying of the solvent is carried out rapidly, and in which quality is also stabilized. The method includes an impregnating step for impregnating a solvent-containing resin composition by a resin impregnating apparatus 12 into a porous sintered layer sintered on a back metal 11, a drying step for drying with a drying furnace 13 the solvent in the resin composition impregnated in the porous sintered layer using an electromagnetic wave oscillator which radiates electromagnetic waves in a wavelength region which is easily absorbed in the solvent, and a baking step for baking with a baking furnace 14 the resin composition impregnated in the porous sintered layer.Type: ApplicationFiled: May 27, 2008Publication date: November 27, 2008Applicant: DAIDO METAL COMPANY LTD.Inventors: Hideki Iwata, Toshihiko Takagi, Naoki Touge, Hideyuki Nakajima
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Patent number: 7452842Abstract: A porous preform (carrier) is soaked in an impregnating solution, which contains both of a catalytic-activity constituent, e.g. Ni and/or Co, and a carrier-forming constituent, e.g. Mg, Al, Zr, Ti and/or Ca, so as to simultaneously infiltrate the catalytic-activity and carrier-forming constituents into the porous preform. The impregnated preform is dried, calcined at a temperature of 700° C. or higher and then activated at a temperature of 500° C. or higher, whereby fine catalytic-activity particles are distributed on a surface of the porous carrier with high dispersion. Due to finely-distributed catalytic-activity particles, the surface of the catalyst is prevented from deposition of carbonaceous matters during reformation of hydrocarbon and held in an active state over a long term.Type: GrantFiled: October 3, 2003Date of Patent: November 18, 2008Assignee: Japan Oil, Gas and Metals National CorporationInventors: Toshiya Wakatsuki, Kiyoshi Inaba, Hideyuki Nakajima, Eiichi Hosoya
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Patent number: 7101087Abstract: A sliding member includes a substrate, a porous layer provided on the surface of the substrate and a sliding layer with which the porous layer is impregnated and coated. The sliding layer contains polybenzimidazole, 1–70 vol % of a solid lubricant and 0.1–10 vol % of hard particles.Type: GrantFiled: April 23, 2003Date of Patent: September 5, 2006Assignee: Daido Metal Company Ltd.Inventors: Nobutaka Hiramatsu, Takuya Tanaka, Hideyuki Nakajima, Masahito Fujita, Takayuki Shibayama
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Publication number: 20050249964Abstract: A multilayer sliding member is provided that contains no lead but has superior friction and abrasion properties under the conditions of high PV values and can be used suitably in dry lubrication environments. The multilayer sliding member includes: a porous metal layer that is formed on a back metal; and a sliding layer that is formed by impregnating and coating the porous metal layer, wherein the sliding layer includes 1 to 25% by volume of an oxybenzoyl polyester resin, 1 to 15% by volume of a phosphate, 1 to 20% by volume of barium sulfate, and polytetrafluoroethylene resin. The oxybenzoyl polyester resin (POB) improves the strength and abrasion resistance of the sliding material, and the synergistic effect of the phosphate and barium sulfate facilitates the transfer of PTFE to a counter material during sliding, so that the coefficient of friction can be decreased and the abrasion resistance can be improved.Type: ApplicationFiled: November 3, 2004Publication date: November 10, 2005Applicant: Daido Metal Co. Ltd.Inventors: Hideyuki Nakajima, Takahiro Niwa, Nobutaka Hiramatsu
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Patent number: 6866421Abstract: A plain bearing comprising a backing alloy made of copper alloy or aluminum alloy, a coat layer of synthetic resin formed on the surface of a backing alloy, and a thin film of polytetrafluoroethylene formed on the surface of the coat layer has a lower coefficient friction, improved conformability and distinguished sliding characteristics.Type: GrantFiled: January 27, 2003Date of Patent: March 15, 2005Assignee: Daido Metal Company Ltd.Inventors: Takuya Tanaka, Hideyuki Nakajima, Nobutaka Hiramatsu, Masahito Fujita, Takayuki Shibayama
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Publication number: 20040067848Abstract: A porous preform (carrier) is soaked in an impregnating solution, which contains both of a catalytic-activity constituent, e.g. Ni and/or Co, and a carrier-forming constituent, e.g. Mg, Al, Zr, Ti and/or Ca, so as to simultaneously infiltrate the catalytic-activity and carrier-forming constituents into the porous preform. The impregnated preform is dried, calcined at a temperature of 700° C. or higher and then activated at a temperature of 500° C. or higher, whereby fine catalytic-activity particles are distributed on a surface of the porous carrier with high dispersion. Due to finely-distributed catalytic-activity particles, the surface of the catalyst is prevented from deposition of carbonaceous matters during reformation of hydrocarbon and held in an active state over a long term.Type: ApplicationFiled: October 3, 2003Publication date: April 8, 2004Applicants: Japan National Oil Corporation, Japan Petroleum Exploration Co., Ltd.Inventors: Toshiya Wakatsuki, Kiyoshi Inaba, Hideyuki Nakajima, Eiichi Hosoya
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Publication number: 20040008914Abstract: The present invention provides a plain bearing comprising a substrate and a sliding layer provided on the surface of the substrate which is improved in bearing performances, particularly, wear resistance. According to the present invention, the sliding layer 2 provided on the surface of the substrate 1 comprising a steal material or stainless steal contains polybenzimidazole (PBI) and 1-70 vol% of a solid lubricant. PBI is superior in heat resistance to thermosetting resins (PAI, PI, EP resins) and, besides, high in material strength, and thus wear resistance and anti-seizure property can be improved.Type: ApplicationFiled: April 21, 2003Publication date: January 15, 2004Inventors: Nobutaka Hiramatsu, Takuya Tanaka, Hideyuki Nakajima, Masahito Fujita, Takayuki Shibayama
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Publication number: 20030235355Abstract: The object of the present invention resides in providing a sliding member having a sliding layer on the sliding surface which is further improved in sliding characteristics, particularly, wear resistance and, besides, improved in bonding force of the sliding layer. In the present invention, a plating layer 1a is provided on the surface of a substrate 1 comprising stainless steel or carbon steel, and a porous layer 2 is provided by spreading metal powders of a copper alloy or the like on the surface of the plating layer 1a and sintering the metal powders. Then, the porous layer 2 is impregnated and coated with a sliding layer 3 containing PBI and 1-70 vol % of a solid lubricant.Type: ApplicationFiled: April 23, 2003Publication date: December 25, 2003Inventors: Nobutaka Hiramatsu, Takuya Tanaka, Hideyuki Nakajima, Masahito Fujita, Takayuki Shibayama
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Publication number: 20030185474Abstract: A plain bearing comprising a backing alloy made of copper alloy or aluminum alloy, a coat layer of synthetic resin formed on the surface of a backing alloy, and a thin film of polytetrafluoroethylene formed on the surface of the coat layer has a lower coefficient friction, improved conformability and distinguished sliding characteristics.Type: ApplicationFiled: January 27, 2003Publication date: October 2, 2003Applicant: DAIDO METAL COMPANY LTDInventors: Takuya Tanaka, Hideyuki Nakajima, Nobutaka Hiramatsu, Masahito Fujita, Takayuki Shibayama
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Publication number: 20030182275Abstract: There is provided a method for distributing position information in which a user can acquire position information shared over the Internet without taking account of the environment or the terminal, the position information can arbitrarily reflect the latest information, and a utilizer can set arbitrary position information at any time. A system for distributing position information comprises a database management server (1), a position information database (2), a map information database (3), a utilizer terminal (4), a user terminal (5), and the like which are configured over the Internet. The utilizer acquires a utilization number by accessing the database management server (1) through the utilizer terminal (4), sets position information corresponding to the utilization number in the position information database (2), and transmits the utilization number to the user.Type: ApplicationFiled: February 28, 2003Publication date: September 25, 2003Inventor: Hideyuki Nakajima
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Patent number: 6082981Abstract: An oil separator for a compressor according to the present invention is an oil separator (33) for separating oil flowing into a high-pressure chamber (21a) from a low-pressure chamber (21b) with a compression medium in a compressor from the compression medium, and comprises a demister (33a) which is in the form of a net formed by braiding metal thin wires and has surfaces subjected to sandblasting. Due to this structure, an oil separator for a compressor not reducing oil separability also in case of employing an HFC refrigerant and ether oil in combination with each other is implemented. The demister (33a) is formed by performing sandblasting on both front and rear surfaces of a netted strip (33a) and thereafter annularly winding the strip.Type: GrantFiled: May 27, 1998Date of Patent: July 4, 2000Assignee: Daikin Industries, Ltd.Inventors: Hideyuki Nakajima, Hiroshi Kitaura, Yuji Sakata