Patents by Inventor Yoshitaka Ikeda
Yoshitaka Ikeda 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: 20170082957Abstract: An object is to provide a self-heat-generating fixing roller that has a simple structure and good durability and that can be easily produced. A self-heat-generating fixing roller according to an embodiment of the present invention includes a columnar core bar, a heat-insulating layer stacked on an outer circumferential side of the core bar, a heat-generating layer stacked on an outer circumferential side of the heat-insulating layer and heated by supplying electricity, and a mold-releasing layer stacked on an outer circumferential side of the heat-generating layer. The heat-insulating layer preferably contains a matrix containing a synthetic resin or rubber as a main component, and a plurality of pores contained in the matrix. The heat-generating layer preferably contains a matrix containing a synthetic resin or rubber as a main component, and a plurality of electrically conductive fillers contained in the matrix.Type: ApplicationFiled: November 3, 2015Publication date: March 23, 2017Inventors: Shingo NAKAJIMA, Jun SUGAWARA, Yoshitaka IKEDA, Masato TANAKA, Masatoshi ISHIKAWA
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Publication number: 20160223968Abstract: An object of the present invention is to provide a polyimide tube for a fixing belt, the polyimide tube having good toner fixability. A polyimide tube for a fixing belt of an image-forming apparatus according to the present invention includes a polyimide layer that contains a polyimide as a main component and a needle-like filler, the needle-like filler containing a carbon nanotube and needle-like titanium oxide. A product of a thermal diffusivity (m2/s) of the polyimide layer and a breaking elongation (%) of the polyimide layer in an axial direction is 35×10?7 or more. An orientation direction of the needle-like filler is preferably an axial direction or a circumferential direction.Type: ApplicationFiled: July 7, 2015Publication date: August 4, 2016Inventors: Shingo NAKAJIMA, Jun SUGAWARA, Masatoshi ISHIKAWA, Yoshitaka IKEDA, Kazuhiro KIZAWA
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Patent number: 9335689Abstract: Provided are a polyimide tube that can be produced at a low cost and has good durability and a good offset property, a method for producing the polyimide tube, and a fixing belt which includes the polyimide tube as a base and which has good durability and a good offset property. Provided are a polyimide tube including a base resin containing a polyimide resin having good rigidity and a soft polyimide resin having good flexibility in a mass ratio of 30:70 to 70:30, 20% to 50% by volume of graphite, 3% by volume or more of a highly conductive carbon black particle, and 0.5% by volume or more of a carbon nanotube relative to the volume of the base resin, a method for producing the polyimide tube, and a fixing belt including the polyimide tube as a base.Type: GrantFiled: November 14, 2012Date of Patent: May 10, 2016Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC FINE POLYMER, INC.Inventors: Shingo Nakajima, Jun Sugawara, Yoshitaka Ikeda, Daisuke Shoji
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Publication number: 20150314504Abstract: Provided is a method for producing a roller for OA equipment, with which a roller that degrades the quality of an image is not easily produced even in the case of using a fluororesin tube stored in a folded state.Type: ApplicationFiled: July 22, 2014Publication date: November 5, 2015Inventors: Naoki ONMORI, Yoshitaka IKEDA, Kazuhiro KIZAWA
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Publication number: 20150253757Abstract: A robot controller used in a system having a machine tool and a robot, by which the robot is properly operated corresponding to an operation state of the machine tool. The robot controller has a data communicating part which obtains data representing an operation state of the machine tool at predetermined timing; a motion pattern storing part which stores a plurality of motion patterns of the robot for the machine tool; and a motion controlling part which selects a motion pattern from the stored plurality of motion patterns when an abnormality occurs in the machine tool or when an operation state of the machine tool satisfies a predefined condition, and operates the robot based on the selected motion pattern, the selected pattern being associated with an operation state of the machine tool when an abnormality occurs or when the operation state satisfies the predefined condition.Type: ApplicationFiled: March 4, 2015Publication date: September 10, 2015Inventor: Yoshitaka IKEDA
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Patent number: 8836891Abstract: Provided is a liquid crystal display device including: a main display region (27) and a sub display region (28a, 28b) for emitting lights of respective different brightness levels; and a liquid crystal display panel (22) having a display surface (24) provided which a light guide body (70). The light guide body (70) is a transparent optical member, and has a part covering at least a boundary line (26) between the main display region (27) and the sub display region (28a, 28b), when seen in a plan view. Further, the part of the light guide body (70) covering the boundary line (26) is formed to have a cross section having a curvature.Type: GrantFiled: July 10, 2009Date of Patent: September 16, 2014Assignee: Sharp Kabushiki KaishaInventor: Yoshitaka Ikeda
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Publication number: 20140127513Abstract: Provided are a polyimide tube that can be produced at a low cost and has good durability and a good offset property, a method for producing the polyimide tube, and a fixing belt which includes the polyimide tube as a base and which has good durability and a good offset property. Provided are a polyimide tube including a base resin containing a polyimide resin having good rigidity and a soft polyimide resin having good flexibility in a mass ratio of 30:70 to 70:30, 20% to 50% by volume of graphite, 3% by volume or more of a highly conductive carbon black particle, and 0.5% by volume or more of a carbon nanotube relative to the volume of the base resin, a method for producing the polyimide tube, and a fixing belt including the polyimide tube as a base.Type: ApplicationFiled: November 14, 2012Publication date: May 8, 2014Applicants: SUMITOMO ELECTRIC FINE POLYMER, INC., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shingo Nakajima, Jun Sugawara, Yoshitaka Ikeda, Daisuke Shoji
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Patent number: 8151242Abstract: With use of a relationship analyzing section for analyzing the relationship between constituent elements of a requisition sheet model described, for example, in the form of use case, and a relationship output section for outputting the analysis result to, for example, a display unit, an operator can check the presence/absence of an omission, contradiction, and the like in the displayed relationship between constituent elements, thereby easily checking whether the requisition sheet is accurately described. In addition, with use of a use case executing section for sequentially executing use cases included in a requisition sheet and a log recording section for recording a log by recording the process of executing each use case, the process of executing each use case included in the requisition sheet is recorded as a log, thereby allowing a scenario representing the operation of a system to be easily created by only sequentially executing use cases.Type: GrantFiled: April 5, 2000Date of Patent: April 3, 2012Assignee: NS Solutions CorporationInventors: Nobuo Takayanagi, Katsunobu Shibata, Masahiro Noguchi, Yoshitaka Ikeda
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Patent number: 8014898Abstract: A robot controller (7) controlling a robot (1) used combined with a machine tool (5, 6) provided with a communication unit (9) connecting the robot controller to a machine tool, a detection unit (52) detecting through the communication unit a type and number of machine tools, and a setting unit (55) setting the robot controller based on the type and number of machine tools detected by the detection unit. Due to this, machine tool and robot startup work can be simply and easily performed without requiring skill or increasing the startup man-hours. The setting unit selects one setting file from among a plurality of setting files for the robot controller, stored in the robot controller, based on the type and number of machine tools detected by the detection unit.Type: GrantFiled: January 21, 2010Date of Patent: September 6, 2011Assignee: Fanuc LtdInventors: Hiroji Nishi, Yoshitaka Ikeda
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Publication number: 20110134363Abstract: Provided is a liquid crystal display device including: a main display region (27) and a sub display region (28a, 28b) for emitting lights of respective different brightness levels; and a liquid crystal display panel (22) having a display surface (24) provided which a light guide body (70). The light guide body (70) is a transparent optical member, and has a part covering at least a boundary line (26) between the main display region (27) and the sub display region (28a, 28b), when seen in a plan view. Further, the part of the light guide body (70) covering the boundary line (26) is formed to have a cross section having a curvature.Type: ApplicationFiled: July 10, 2009Publication date: June 9, 2011Applicant: SHARP KABUSHIKI KAISHAInventor: Yoshitaka Ikeda
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Patent number: 7848851Abstract: A controller for work piece-conveying robot having: a coordinate system storage section for storing one or more manual jog feed coordinate systems; a working area setting section for setting to a machine tool a working area to which the manual jog feed coordinate system is assigned; a hand position obtaining section for obtaining a current position of the robot hand at each specified sampling period; a determination section for determining whether or not the current position of the robot hand obtained by the hand position obtaining section is within the working area set by the working area setting section; and a coordinate system switching section for switching a present manual jog feed coordinate system to the manual jog feed coordinate system assigned to the working area if it is determined by the determination section that the current position of the robot hand is within the working area.Type: GrantFiled: September 5, 2008Date of Patent: December 7, 2010Assignee: Fanuc LtdInventors: Hiroji Nishi, Yoshitaka Ikeda
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Publication number: 20100211220Abstract: A robot controller (7) controlling a robot (1) used combined with a machine tool (5, 6) provided with a communication unit (9) connecting the robot controller to a machine tool, a detection unit (52) detecting through the communication unit a type and number of machine tools, and a setting unit (55) setting the robot controller based on the type and number of machine tools detected by the detection unit. Due to this, machine tool and robot startup work can be simply and easily performed without requiring skill or increasing the startup man-hours. The setting unit selects one setting file from among a plurality of setting files for the robot controller, stored in the robot controller, based on the type and number of machine tools detected by the detection unit.Type: ApplicationFiled: January 21, 2010Publication date: August 19, 2010Applicant: FANUC LTDInventors: Hiroji NISHI, Yoshitaka IKEDA
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Publication number: 20100167890Abstract: The invention offers an OA apparatus roller that has a surface layer formed by applying fluororesin and baking it, that has various excellent properties with-out impairing the parting ability and thermal conductivity, and that is suitable for mass production. An OA apparatus roller is produced by forming an elastic layer and a surface layer in this order on a core metal. In the roller, the surface layer is composed of a plurality of fluororesin layers and has a thickness of 6 to 30 ?m. An OA apparatus roller has a structure in which of the multiple fluororesin layers forming the surface layer, at least one layer is a fluororesin layer containing filler. An OA apparatus roller has a structure in which of the multiple fluororesin layers forming the surface layer, the outer-most layer is a fluororesin layer containing no filler and at least one layer other than the outermost layer is a fluororesin layer containing filler.Type: ApplicationFiled: December 30, 2008Publication date: July 1, 2010Applicant: SUMITOMO ELECTRIC FINE POLYMER, INC.Inventors: Yoshimasa Suzuki, Masahiro Habuka, Yoshitaka Ikeda
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Publication number: 20100155199Abstract: A fluororesin-covered roller and a production method thereof. The fluororesin-covered roller has a laminar structure in which a rubber layer and a fluororesin layer are provided in this order on a roller base material. In the fluororesin-covered roller, the fluororesin layer is a covering layer formed of a fluororesin tube having a thickness of 10 ?m or more and less than 20 ?m.Type: ApplicationFiled: April 9, 2008Publication date: June 24, 2010Inventors: Yoshitaka Ikeda, Daisuke Shoji, Kazuhiro Kizawa
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Publication number: 20090232564Abstract: The invention offers a method of producing an OA apparatus roller that can increase the thermal conductivity of the surface layer composed of a fluororesin layer by decreasing its thickness, that has an excellent parting ability, that can prevent the rubber layer from deteriorating, and that is free from foreign matters adhering onto the inner surface of a hollow cylindrical mold even when the hollow cylindrical mold is used. The invention also offers an OA apparatus roller produced by the foregoing method. The method of producing an OA apparatus roller is provided with a step of forming an elastic layer and a surface layer in this order on a core metal. In this method, the surface layer is formed by using a fluororesin dispersion and the fluororesin dispersion contains a surfactant, a film-thickening agent, and a viscosity-increasing agent with a total content of 1.0 to 5.0 wt %.Type: ApplicationFiled: December 15, 2008Publication date: September 17, 2009Applicant: Sumitomo Electric Fine Polymer, Inc.Inventors: Yoshimasa Suzuki, Masahiro Habuka, Yoshitaka Ikeda
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Publication number: 20090176637Abstract: The invention offers an OA apparatus roller that has a surface layer formed by applying fluororesin and baking it, that has various excellent properties without impairing the parting ability and thermal conductivity, and that is suitable for mass production. An OA apparatus roller is produced by forming an elastic layer and a surface layer in this order on a core metal. In the roller, the surface layer is composed of a plurality of fluororesin layers and has a thickness of 6 to 30 ?m. An OA apparatus roller has a structure in which of the multiple fluororesin layers forming the surface layer, at least one layer is a fluororesin layer containing filler. An OA apparatus roller has a structure in which of the multiple fluororesin layers forming the surface layer, the outermost layer is a fluororesin layer containing no filler and at least one layer other than the outermost layer is a fluororesin layer containing filler.Type: ApplicationFiled: December 31, 2008Publication date: July 9, 2009Applicant: SUMITOMO ELECTRIC FINE POLYMER, INC.Inventors: Yoshimasa Suzuki, Masahiro Habuka, Yoshitaka Ikeda
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Publication number: 20090112362Abstract: A controller for work piece-conveying robot having: a coordinate system storage section for storing one or more manual jog feed coordinate systems; a working area setting section for setting to a machine tool a working area to which the manual jog feed coordinate system is assigned; a hand position obtaining section for obtaining a current position of the robot hand at each specified sampling period; a determination section for determining whether or not the current position of the robot hand obtained by the hand position obtaining section is within the working area set by the working area setting section; and a coordinate system switching section for switching a present manual jog feed coordinate system to the manual jog feed coordinate system assigned to the working area if it is determined by the determination section that the current position of the robot hand is within the working area.Type: ApplicationFiled: September 5, 2008Publication date: April 30, 2009Applicant: FANUC LTDInventors: Hiroji Nishi, Yoshitaka Ikeda
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Publication number: 20090047048Abstract: A pressure roller includes a rubber layer containing organic microballoons and a heat-resistant resin layer arranged in that order on a roller base, wherein an intermediate rubber layer having a heat conductivity of 1.0 to 4.0 W/m·K is arranged between the rubber layer containing the organic microballoons and the heat-resistant resin layer. There is provided a method for producing the pressure roller.Type: ApplicationFiled: October 19, 2006Publication date: February 19, 2009Applicant: SUMITOMO ELECTRIC FINE POLYMER, INC.Inventors: Yoshitaka Ikeda, Kazuhiro Kizawa
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Patent number: 7328083Abstract: A controller of an injection molding machine and a controller of a molded-product removing robot are connected to each other via communication means. When a molding condition save command is entered from the controller of the injection molding machine, a folder with a management number is created on a memory card, and molding conditions stored in the controller of the injection molding machine are saved in the folder. A teaching program and/or setting data stored in the robot controller is read via the communication means and saved in the same folder. When a molding condition read command is entered, data is read from a specified folder, molding conditions are set in the controller of the injection molding machine, and a teaching program etc. are set in the robot controller via the communication means.Type: GrantFiled: January 5, 2006Date of Patent: February 5, 2008Assignee: Fanuc LtdInventors: Yoshitaka Ikeda, Tetsuya Kosaka
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Publication number: 20060161291Abstract: A controller of an injection molding machine and a controller of a molded-product removing robot are connected to each other via communication means. When a molding condition save command is entered from the controller of the injection molding machine, a folder with a management number is created on a memory card, and molding conditions stored in the controller of the injection molding machine are saved in the folder. A teaching program and/or setting data stored in the robot controller is read via the communication means and saved in the same folder. When a molding condition read command is entered, data is read from a specified folder, molding conditions are set in the controller of the injection molding machine, and a teaching program etc. are set in the robot controller via the communication means.Type: ApplicationFiled: January 5, 2006Publication date: July 20, 2006Applicant: FANUC LTDInventors: Yoshitaka Ikeda, Tetsuya Kosaka