Patents by Inventor Kazuo Hirose
Kazuo Hirose 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: 11346398Abstract: To provide a non-oil-impregnated sliding bearing having superior low friction capable of suppressing an increase of a shaft temperature in a continuous use, and a bearing apparatus and an image forming apparatus provided with the sliding bearing. Sliding bearings 5a to 5c support rotation shafts on cylinder inner surface in a rotatable manner. Each of the sliding bearings 5a to 5c is formed of a molded member of a non-oil-impregnated resin composition that does not contain oil. The resin composition contains an injection-moldable ultrahigh molecular weight polyethylene resin as a base resin, a polytetrafluoroethylene resin as an additive, and an acicular inorganic filler having Mohs hardness of 3 or less. The resin composition contains 65 vol % or more of the ultrahigh molecular weight polyethylene resin, 5-25 vol % of the polytetrafluoroethylene resin, and 1-20 vol % of the acicular inorganic filler, based on the whole of the resin composition.Type: GrantFiled: January 17, 2019Date of Patent: May 31, 2022Assignee: NTN CORPORATIONInventors: Norikazu Muneda, Kazuo Hirose
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Patent number: 10845739Abstract: To provide a manufacturing method and a manufacturing device for a peeling member capable of manufacturing the peeling member having less variation in quality and excellent durability for long-time use at a low cost with excellent productivity by a simple structure. The manufacturing method for the peeling member includes sticking a non-adhesive resin film. In sticking the non-adhesive resin film, a distal end edge 2b of a distal end portion 2a of a base material 2 is arranged at a side of an adhesive layer of a non-adhesive resin film 4 such that an end portion of the non-adhesive resin film 4 is protruded from the distal end edge 2b, and then the non-adhesive resin film 4 is stuck on both surfaces of the distal end portion 2a of a base material 2 to wrap the distal end edge 2b of the base material 2 by pressing a plurality rollers 21 to 25 sequentially onto the non-adhesive resin film 4 from an one side end portion toward an another side end portion in a longitudinal direction of the base material 2.Type: GrantFiled: September 16, 2016Date of Patent: November 24, 2020Assignee: NTN CORPORATIONInventors: Kazuo Hirose, Hiroshi Yanagawa
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Publication number: 20200340522Abstract: To provide a non-oil-impregnated sliding bearing having superior low friction capable of suppressing an increase of a shaft temperature in a continuous use, and a bearing apparatus and an image forming apparatus provided with the sliding bearing. Sliding bearings 5a to 5c support rotation shafts on cylinder inner surface in a rotatable manner. Each of the sliding bearings 5a to 5c is formed of a molded member of a non-oil-impregnated resin composition that does not contain oil. The resin composition contains an injection-moldable ultrahigh molecular weight polyethylene resin as a base resin, a polytetrafluoroethylene resin as an additive, and an acicular inorganic filler having Mohs hardness of 3 or less. The resin composition contains 65 vol % or more of the ultrahigh molecular weight polyethylene resin, 5-25 vol % of the polytetrafluoroethylene resin, and 1-20 vol % of the acicular inorganic filler, based on the whole of the resin composition.Type: ApplicationFiled: January 17, 2019Publication date: October 29, 2020Inventors: Norikazu MUNEDA, Kazuo HIROSE
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Publication number: 20200241451Abstract: To provide a manufacturing method and a manufacturing device for a peeling member capable of manufacturing the peeling member having less variation in quality and excellent durability for long-time use at a low cost with excellent productivity by a simple structure. The manufacturing method for the peeling member includes sticking a non-adhesive resin film. In sticking the non-adhesive resin film, a distal end edge 2b of a distal end portion 2a of a base material 2 is arranged at a side of an adhesive layer of a non-adhesive resin film 4 such that an end portion of the non-adhesive resin film 4 is protruded from the distal end edge 2b, and then the non-adhesive resin film 4 is stuck on both surfaces of the distal end portion 2a of a base material 2 to wrap the distal end edge 2b of the base material 2 by pressing a plurality rollers 21 to 25 sequentially onto the non-adhesive resin film 4 from an one side end portion toward an another side end portion in a longitudinal direction of the base material 2.Type: ApplicationFiled: September 16, 2016Publication date: July 30, 2020Inventors: Kazuo HIROSE, Hiroshi YANAGAWA
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Patent number: 10616371Abstract: An information terminal includes an acquisition unit that acquires specific posted information from a server which collects posted information that is posted from information terminals; a control unit that controls the posted information based on time series information; and a detection unit that detects a predetermined setting operation. When the detection unit detects the setting operation, the control unit executes a sharing process based on information about another information terminal obtained from the server, where the sharing process acquires at least part of data provided by said other information terminal based on the time series information.Type: GrantFiled: March 25, 2014Date of Patent: April 7, 2020Assignee: NEC CorporationInventors: Tsuyoshi Sakai, Kazuo Hirose, Naoaki Sugio
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Patent number: 10459377Abstract: Peeling member formed by a metal plate having a resin coating film thereon, the peeling member being capable of preventing adhesion of a paper right after fixing for a long period of time, and to provide a manufacturing method for the peeling member capable of forming a fine recessed portion on a surface of the resin coating film for preventing the adhesion of the paper. Peeling member 1 includes a peeling sheet 1a having a base material 2 having a plate shape, and a resin coating film 4 formed on at least a surface of the base material 2 at a paper passing side. The peeling member is formed to peel a paper from a fixing member of an electronic photographic device by arranging a distal end portion 1c to be contacted with or close to the fixing member.Type: GrantFiled: September 15, 2016Date of Patent: October 29, 2019Assignee: NTN CORPORATIONInventor: Kazuo Hirose
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Patent number: 10317835Abstract: To provide a peeling member capable of suppressing a waving phenomenon of a peeling sheet, contacting linearly with a roller sufficiently, preventing deformation due to jamming of a paper and showing excellent paper peeling performance, and to provide a peeling device provided with the peeling member. The peeling member includes a peeling sheet 10 that peels a paper from a fixing roller 6 of an electronic photographic device. The peeling sheet 10 is formed of one metal plate, the peeling sheet 10 including a peeling portion 2 that forms the distal end portion, and a support portion 3 that is thicker than the peeling portion 2. The peeling portion 2 is arranged at one long side of the metal plate such that a paper passing surface 2b of the peeling portion 2 is formed as a flat surface continued to a surface of the support portion 3.Type: GrantFiled: December 9, 2016Date of Patent: June 11, 2019Assignee: NTN CORPORATIONInventor: Kazuo Hirose
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Publication number: 20190041777Abstract: To provide a peeling member formed by a metal plate or the like having a resin coating film thereon, the peeling member being capable of preventing adhesion of a paper right after fixing for a long period of time, and to provide a manufacturing method for the peeling member capable of forming a fine recessed portion on a surface of the resin coating film for preventing the adhesion of the paper. A peeling member 1 includes a peeling sheet 1a comprising a base material 2 having a plate shape, and a resin coating film 4 formed on at least a surface of the base material 2 at a paper passing side. The peeling member is formed to peel a paper from a fixing member of an electronic photographic device by arranging a distal end portion 1c to be contacted with or close to the fixing member. The resin coating film 4 includes a pattern portion 5 formed of grooves 5a, which are a plurality of recessed portions, on a surface of the resin coating film 4 at the paper passing side.Type: ApplicationFiled: September 15, 2016Publication date: February 7, 2019Inventor: Kazuo HIROSE
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Publication number: 20180373192Abstract: To provide a peeling member capable of suppressing a waving phenomenon of a peeling sheet, contacting linearly with a roller sufficiently, preventing deformation due to jamming of a paper and showing excellent paper peeling performance, and to provide a peeling device provided with the peeling member . The peeling member includes a peeling sheet 10 that peels a paper from a fixing roller 6 of an electronic photographic device. The peeling sheet 10 is formed of one metal plate, the peeling sheet 10 including a peeling portion 2 that forms the distal end portion, and a support potion 3 that is thicker than the peeling portion 2.Type: ApplicationFiled: December 9, 2016Publication date: December 27, 2018Inventor: Kazuo HIROSE
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Publication number: 20180275571Abstract: Relating to a sliding member for a fixing device having a resin coating film on a sliding surface, to provide a manufacturing method for the peeling member for the fixing device capable of forming a fine recessed groove as a lubricant reservoir on a surface of the resin coating film. The manufacturing method for the sliding member for the fixing device includes a coating film forming step of forming a resin coating film by drying a resin coating material after applying the resin coating material including a matrix resin on at least a sliding surface of the base material of the sliding member slid on the belt member, a coating film baking step of baking and hardening the resin coating film, and a recessed portion forming step of forming a recessed portion, which becomes a lubricant reservoir when the coating film baking step is performed, on the surface of the resin coating film, after the coating film forming step and before the coating film baking step.Type: ApplicationFiled: September 15, 2016Publication date: September 27, 2018Inventors: Kazuo HIROSE, Hiroshi YANAGAWA, Yoshihide HIMENO
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Patent number: 10036984Abstract: To provide a manufacturing method for a peeling member in which a non-adhesive resin film formed by fluororesin resin or the like is adhered to a metal plate, the method capable of manufacturing the peeling member which can prevent adhesion of a paper right after fixing for a long period of time with high productivity and without variations in quality. The manufacturing method for the peeling member provided with a peeling sheet 1a formed by a metal plate 2 and a non-adhesive resin film 4 adhered to the metal plate 2, the manufacturing method including a groove forming step of forming a pattern portion 5 formed by a plurality of recessed grooves on at least a part of a paper passing side surface of the non-adhesive resin film 4 along a longitudinal direction of the non-adhesive resin film 4.Type: GrantFiled: December 18, 2015Date of Patent: July 31, 2018Assignee: NTN CORPORATIONInventors: Kazuo Hirose, Hiroshi Yanagawa, Yuuki Yamazoe
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Patent number: 9915292Abstract: A drawer pull-out guide includes a carcass rail to be fixed to a furniture carcass, an extension rail displaceable relative to the carcass rail between a closed position and an open position, and a rolling body and a supporting body movable along a running limb of the carcass rail and a running surface of the extension rail upon a movement of the extension rail. A clearance is formed on the running limb of the carcass rail and/or on the running surface of the extension rail. The rolling body is accommodated within the clearance in the closed position of the extension rail and is thereby relieved from the load of the extension rail. In the closed position of the extension rail, the load of the extension rail is carried by the rolling body. The rolling body and the supporting body are arranged in a common running carriage.Type: GrantFiled: April 25, 2014Date of Patent: March 13, 2018Assignee: NTN CORPORATIONInventors: Hiroshi Yanagawa, Kazuo Hirose
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Publication number: 20170357195Abstract: To provide a manufacturing method for a peeling member in which a non-adhesive resin film formed by fluororesin resin or the like is adhered to a metal plate, the method capable of manufacturing the peeling member which can prevent adhesion of a paper right after fixing for a long period of time with high productivity and without variations in quality.Type: ApplicationFiled: December 18, 2015Publication date: December 14, 2017Inventors: Kazuo HIROSE, Hiroshi YANAGAWA, Yuuki YAMAZOE
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Patent number: 9458885Abstract: A radial sliding bearing provided with a sliding bearing (1), an inner ring (2), and an outer ring (3), the inner ring (2) is made of melt-cast metal and the outer ring (3) being constituted by an article molded from a resin composition, the inner ring (2) comprising a concavely curved surface (2a) on part of the axial direction of the outer circumference and a bearing hole (4) for mating with a support shaft on the inner circumference, the outer ring (3) having a convexly curved surface (3a) that contacts and slides against the concavely curved surface (2a) on the outer circumference of the inner ring (2) along part of the axial direction of the inner circumference, and the inner ring (2) and the outer ring (3) relatively rotating without contacting each other apart from the contact between the convexly curved surface and the concavely curved surface.Type: GrantFiled: September 20, 2012Date of Patent: October 4, 2016Assignee: NTN CORPORATIONInventors: Takuya Ishii, Ikuma Fujitsuka, Kei Hattori, Kazuo Hirose, Satoru Fukuzawa
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Patent number: 9367018Abstract: An image forming device includes a tripod type constant-velocity joint through which a rotary member shaft of a rotary member is connected to the drive shaft of a motor. The constant-velocity joint includes a pair of outer rings each having three axially extending track grooves in its inner periphery, and a tripod member having three protrusions formed on each of the axial ends thereof and axially slidably received in the corresponding track grooves. The outer rings and the tripod member are formed of synthetic resin. One of the outer rings and the tripod member are inseparably coupled to the drive shaft so that the other of the outer rings is always disconnected from the tripod member when the rotary member is pulled away from the motor.Type: GrantFiled: May 14, 2015Date of Patent: June 14, 2016Assignees: NTN CORPORATION, RICOH COMPANY, LTD.Inventors: Hiroshi Yanagawa, Kazuo Hirose, Hiroaki Takagi, Junichi Ichikawa
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Publication number: 20160102714Abstract: A tripod type constant-velocity joint is provided through which a driving shaft is coupled to a driven shaft. The joint includes two outer rings connected to the driving shaft and the driven shaft, respectively, and a tripod member through which the outer rings are coupled together. Each of the outer rings has an inner periphery formed with three axially extending track grooves arranged at angular intervals of 120 degrees. The tripod member has two axial ends each formed with three protrusions axially slidably received in the respective track grooves of the corresponding one of the outer rings, whereby torque around an axis is transmitted between the respective outer rings and the tripod member. The joint can thus cope with a larger angle and/or offset between the axis of the driving shaft and the axis of the driven shaft.Type: ApplicationFiled: April 25, 2014Publication date: April 14, 2016Inventors: Hiroshi YANAGAWA, Kazuo HIROSE
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Publication number: 20160081592Abstract: In a bed having a load detection function, a load detector attached to a bed main body includes a load cell provided at a site which is positioned at any location on a load transmission path extending from a bed surface-forming portion to a bed installation surface, and at which a load from the bed surface-forming portion side is received and the load is transmitted to a configuration member of the installation surface side. The load cell includes a load-receiving member, and a base body which is separated from the load-receiving member and to which the load from the load-receiving member is applied. The load-receiving member comes into contact with the base body, the load from the load-receiving member acts on the base body, and the resulting strain is detected by a strain sensor.Type: ApplicationFiled: April 24, 2014Publication date: March 24, 2016Applicant: SHOWA DENKO K.K.Inventors: Motoki ISHIKAWA, Kazuo HIROSE, Shingo NOGUCHI
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Publication number: 20160057250Abstract: An information terminal includes an acquisition unit that acquires specific posted information from a server which collects posted information that is posted from information terminals; a control unit that controls the posted information based on time series information; and a detection unit that detects a predetermined setting operation. When the detection unit detects the setting operation, the control unit executes a sharing process based on information about another information terminal obtained from the server, where the sharing process acquires at least part of data provided by said other information terminal based on the time series information.Type: ApplicationFiled: March 25, 2014Publication date: February 25, 2016Inventors: Tsuyoshi SAKAI, Kazuo HIROSE, Naoaki SUGIO
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Publication number: 20150300872Abstract: The object of the invention is to provide a bed with a load detection function. The invention provides a bed with a load detection function that detects a load applied to a bed body, using a load detector attached to the bed body, and detects the state of a user on a bed surface of the bed body. Additionally, a load detector suitable for the bed is provided.Type: ApplicationFiled: December 6, 2012Publication date: October 22, 2015Applicant: SHOWA DENKO K.K.Inventors: Kazuo HIROSE, Masaharu TOCHIGI, Junichi MOTOMURA, Motoki ISHIKAWA, Shingo NOGUCHI
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Patent number: 8998495Abstract: It is an object of the present invention to provide a sliding bearing which has a simple construction and thus can be produced easily and at a low cost and yet eliminates the need for the use of a heat insulation sleeve and the like and is capable of maintaining a frictional torque to a low extent. A sliding bearing (1) has an inner ring (2), an outer ring (3), and a sliding contact member (4) interposed therebetween. The inner ring (2) has a curved surface (2a) formed along an outer circumference thereof and a shaft-receiving hole which fits on a supporting shaft along an inner circumference thereof. The sliding contact member (4) is a molded body, made of resin composition, which has a curved surface (4a) making sliding contact with the curved outer circumferential surface (2a) of the inner ring (2) with the curved surface (4a) being opposed to the curved outer circumferential surface (2a).Type: GrantFiled: February 23, 2012Date of Patent: April 7, 2015Assignee: NTN CorporationInventors: Kazuo Hirose, Seiichi Takada, Atsushi Morooka, Ikuma Fujitsuka