Patents by Inventor Takashi Hirayama
Takashi Hirayama 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: 9976784Abstract: An evaporator has a first longitudinal direction and includes first and second header tanks. The first header tank includes a first surrounding wall projecting from at least one of a first end portion and a second end portion along a first longitudinal direction to define a first recess to surround the first recess at at least one of the first end portion and the second end portion. The first surrounding wall has at least one first drain opening to drain water from the first recess. The second header tank has a second longitudinal direction and is disposed apart from the first header tank so that the first longitudinal direction is substantially parallel to the second longitudinal direction. The second header tank has a second surrounding wall having at least one second drain opening to drain water from the second recess.Type: GrantFiled: July 22, 2013Date of Patent: May 22, 2018Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Takashi Hirayama, Motoyuki Takagi
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Patent number: 9746217Abstract: An evaporator includes a cool storage material container. The cool storage material container contains a cool storage material and is disposed in a second part of the spaces. The cool storage material container includes a container main body portion joined to the refrigerant flow tubes. The outward projecting portion extends from an upper end of the leeward edge or windward edge of the container main body portion. The outward projecting portion has an expansion portion projecting from the container main body portion and projecting thickness of the expansion portion is greater than a thickness of the container main body portion. The expansion portion is located outward of the fins. At least one of left and right side walls of the expansion portion is so constructed to deform when an internal pressure in the cool storage material container increases beyond a predetermined pressure.Type: GrantFiled: December 16, 2013Date of Patent: August 29, 2017Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Takashi Hirayama, Osamu Kamoshida, Naohisa Higashiyama
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Patent number: 9552912Abstract: There is provided a magnetic rubber composition comprising a rubber (A), a thermosetting resin (B) and a magnetic powder (C), wherein a mass ratio (A/B) of the rubber (A) to the thermosetting resin (B) is 0.2 to 5, and a mass ratio [C/(A+B)] of the magnetic powder (C) to the total mass of the rubber (A) and the thermosetting resin (B) is 0.5 to 20. It gives a magnetic rubber molded article excellent in flexibility and abrasion resistance, and a magnetic encoder produced therewith.Type: GrantFiled: March 3, 2015Date of Patent: January 24, 2017Assignee: UCHIYAMA MANUFACTURING CORP.Inventors: Tadashi Kasamoto, Masaya Ocho, Ayaka Yoshimura, Takashi Hirayama
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Patent number: 9523540Abstract: A heat exchanger includes a pair of header tanks and a plurality of heat exchange tubes. The header tank includes the three tank constituting members having laminated portions. Each of the laminated portions is composed of an outer vertical wall portion, an inner vertical wall portion, and an intermediate vertical wall portion. A fillet is formed between an outer surface of the intermediate vertical wall portion with respect to an air-passing direction and an inner surface of the outer vertical wall portion with respect to the air-passing direction. Another fillet is formed between an inner surface of the intermediate vertical wall portion with respect to the air-passing direction and an outer surface of the inner vertical wall portion with respect to the air-passing direction.Type: GrantFiled: March 28, 2013Date of Patent: December 20, 2016Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Takashi Hirayama, Motoyuki Takagi, Atsuo Ohashi
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Patent number: 9517903Abstract: A paper feeding device that includes, in a drive transmission mechanism to a paper feeding roller that delivers paper, a drive member provided on an apparatus body side as a member to transmit torque in a given direction for delivery of paper from a conveying motor to the paper feeding roller and a driven member provided on the paper feeding roller side. By relatively rotating the drive member and the driven member to form a coupling state of the members before an instruction to start the delivery of paper is output, the rotation of the paper feeding roller is started without a time lag when the instruction to start the delivery of paper is output.Type: GrantFiled: November 12, 2014Date of Patent: December 13, 2016Assignee: RICOH COMPANY, LIMITEDInventors: Atsunori Yoshida, Joji Akiyama, Takashi Nakano, Yukihiko Natsui, Naoki Oikawa, Takashi Hirayama, Takuya Tomobe, Kazuhiko Okuyama
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Patent number: 9404680Abstract: An evaporator with a cool storage function includes a plurality of flat refrigerant flow tubes and at least one cool storage material container. The at least one cool storage material container includes a container main body and a plurality of convex portions. The container main body has a first wall and a second wall opposite to the first wall which are substantially parallel to a plane including a longitudinal direction and a width direction. The first wall and the second wall are connected to adjacent refrigerant flow tubes among the plurality of refrigerant flow tubes, respectively. The plurality of convex portions are provided on the first wall and the second wall to protrude outwardly from the first wall and the second wall. Two adjacent convex portions among the plurality of convex portions form each of condensed water drain passages therebetween.Type: GrantFiled: December 25, 2013Date of Patent: August 2, 2016Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Osamu Kamoshida, Takashi Hirayama
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Patent number: 9366463Abstract: A leeward upper header portion of an evaporator includes first through third sections which communicate with upper ends of heat exchange tubes of first through third tube groups of a leeward tube row. The second tube group, which is an upward flow tube group, and the third tube group, which is a downward flow tube group, form a tube group set. A baffle plate is provided in the second section to be located on the side toward the third section. The baffle plate divides a portion of the interior of the second section into upper and lower spaces and prevents flow of refrigerant toward the upper space. A flow prevention member is provided below the baffle plate so as to prevent flow of refrigerant from the second section into the third section. These two sections communicate with each other in a region above the baffle plate.Type: GrantFiled: October 25, 2011Date of Patent: June 14, 2016Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Naohisa Higashiyama, Osamu Kamoshida, Motoyuki Takagi, Takashi Hirayama
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Publication number: 20160133366Abstract: There is provided a magnetic rubber composition comprising a rubber (A), a thermosetting resin (B) and a magnetic powder (C), wherein a mass ratio (A/B) of the rubber (A) to the thermosetting resin (B) is 0.2 to 5, and a mass ratio [C/(A+B)] of the magnetic powder (C) to the total mass of the rubber (A) and the thermosetting resin (B) is 0.5 to 20. It gives a magnetic rubber molded article excellent in flexibility and abrasion resistance, and a magnetic encoder produced therewith.Type: ApplicationFiled: March 3, 2015Publication date: May 12, 2016Applicant: UCHIYAMA MANUFACTURING CORP.Inventors: Tadashi KASAMOTO, Masaya OCHO, Ayaka YOSHIMURA, Takashi HIRAYAMA
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Publication number: 20150145199Abstract: A paper feeding device that includes, in a drive transmission mechanism to a paper feeding roller that delivers paper, a drive member provided on an apparatus body side as a member to transmit torque in a given direction for delivery of paper from a conveying motor to the paper feeding roller and a driven member provided on the paper feeding roller side. By relatively rotating the drive member and the driven member to form a coupling state of the members before an instruction to start the delivery of paper is output, the rotation of the paper feeding roller is started without a time lag when the instruction to start the delivery of paper is output.Type: ApplicationFiled: November 12, 2014Publication date: May 28, 2015Applicant: RICOH COMPANY, LIMITEDInventors: Atsunori YOSHIDA, Joji AKIYAMA, Takashi NAKANO, Yukihiko NATSUI, Naoki OIKAWA, Takashi HIRAYAMA, Takuya TOMOBE, Kazuhiko OKUYAMA
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Patent number: 8935854Abstract: A method of manufacturing a heat exchanger includes forming elongated holes in two connection walls among a plurality of connection walls to be laminated, and forming paired notches on a claw forming portion of the remaining connection wall facing the elongated holes. A longitudinally intermediate portion of the claw forming portion is pressed toward the other end to break the claw forming portion at the longitudinal center and bend the claw forming portion at the notches to thereby form two claws forming pieces and form bent portions at the distal ends of the claws forming pieces. The claws forming pieces are bent at the notches to form claws. Distal end portions of the claws are bent outward to form fold-back portions, which are engaged with the outer surface of the connection wall at the other end, whereby all the connection walls are provisionally fixed together.Type: GrantFiled: September 26, 2012Date of Patent: January 20, 2015Assignee: Keihin Thermal Technology CorporationInventors: Takashi Hirayama, Atsuo Ohashi
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Publication number: 20140182330Abstract: An evaporator with a cool storage function includes a plurality of flat refrigerant flow tubes and at least one cool storage material container. The at least one cool storage material container includes a container main body and a plurality of convex portions. The container main body has a first wall and a second wall opposite to the first wall which are substantially parallel to a plane including a longitudinal direction and a width direction. The first wall and the second wall are connected to adjacent refrigerant flow tubes among the plurality of refrigerant flow tubes, respectively. The plurality of convex portions are provided on the first wall and the second wall to protrude outwardly from the first wall and the second wall. Two adjacent convex portions among the plurality of convex portions form each of condensed water drain passages therebetween.Type: ApplicationFiled: December 25, 2013Publication date: July 3, 2014Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Osamu KAMOSHIDA, Takashi HIRAYAMA
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Publication number: 20140174121Abstract: An evaporator with a cool storage function includes a plurality of flat refrigerant flow tubes which spaced apart from one another in a thickness direction of the plurality of refrigerant flow tubes to form spaces among the plurality of flat refrigerant flow tubes. The outer fins are disposed in a first part of the spaces and joined to the plurality of refrigerant flow tubes. The cool storage material container contains a cool storage material and is disposed in a second part of the spaces other than the first part. The inner fin is disposed within the cool storage material container and has crest portions extending along the longitudinal direction, trough portions extending along the longitudinal direction, and connection portions connecting the crest portions and the trough portions.Type: ApplicationFiled: December 20, 2013Publication date: June 26, 2014Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Takashi HIRAYAMA, Osamu KAMOSHIDA
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Publication number: 20140165647Abstract: An evaporator includes a cool storage material container. The cool storage material container contains a cool storage material and is disposed in a second part of the spaces. The cool storage material container includes a container main body portion joined to the refrigerant flow tubes. The outward projecting portion extends from an upper end of the leeward edge or windward edge of the container main body portion. The outward projecting portion has an expansion portion projecting from the container main body portion and projecting thickness of the expansion portion is greater than a thickness of the container main body portion. The expansion portion is located outward of the fins. At least one of left and right side walls of the expansion portion is so constructed to deform when an internal pressure in the cool storage material container increases beyond a predetermined pressure.Type: ApplicationFiled: December 16, 2013Publication date: June 19, 2014Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Takashi HIRAYAMA, Osamu KAMOSHIDA, Naohisa HIGASHIYAMA
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Publication number: 20140020425Abstract: An evaporator has a first longitudinal direction and includes first and second header tanks. The first header tank includes a first surrounding wall projecting from at least one of a first end portion and a second end portion along a first longitudinal direction to define a first recess to surround the first recess at at least one of the first end portion and the second end portion. The first surrounding wall has at least one first drain opening to drain water from the first recess. The second header tank has a second longitudinal direction and is disposed apart from the first header tank so that the first longitudinal direction is substantially parallel to the second longitudinal direction. The second header tank has a second surrounding wall having at least one second drain opening to drain water from the second recess.Type: ApplicationFiled: July 22, 2013Publication date: January 23, 2014Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Takashi HIRAYAMA, Motoyuki TAKAGI
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Publication number: 20130255926Abstract: A heat exchanger includes a pair of header tanks and a plurality of heat exchange tubes. The header tank includes the three tank constituting members having laminated portions. Each of the laminated portions is composed of an outer vertical wall portion, an inner vertical wall portion, and an intermediate vertical wall portion. A fillet is formed between an outer surface of the intermediate vertical wall portion with respect to an air-passing direction and an inner surface of the outer vertical wall portion with respect to the air-passing direction. Another fillet is formed between an inner surface of the intermediate vertical wall portion with respect to the air-passing direction and an outer surface of the inner vertical wall portion with respect to the air-passing direction.Type: ApplicationFiled: March 28, 2013Publication date: October 3, 2013Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Takashi HIRAYAMA, Motoyuki TAKAGI, Atsuo OHASHI
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Patent number: 8528900Abstract: A sheet loading and handling apparatus that suppress anomalies in sheet supply operation and feed sheets in a stable manner is disclosed. The sheet loading unit includes a supply mechanism that moves a plurality of stacked sheets in a direction toward a feeding position located at an end of the loading unit, a feeding mechanism that individually feeds sheets to the feeding position, and a control unit controlling a plurality of sensors, which detect whether there is a sheet at the feeding position. The supply mechanism operates based on detection information of the sensors. The control unit monitors a relationship between signal information of the optical sensor and that of another sensor, and if a signal relationship that is not normal as compared to that of normal feeding occurs, the unit retracts the signal information of the optical sensor and uses only the signal information of the other sensor.Type: GrantFiled: February 29, 2012Date of Patent: September 10, 2013Assignee: Toshiba CorporationInventors: Tetsuo Watanabe, Kazuya Saimei, Takashi Hirayama
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Patent number: 8430397Abstract: A sheet take-out device in which sheets are conveyed in an upright state and sheets having a low height can be stably taken out is provided. A sheet take-out device includes a main floor belt that conveys sheets that are placed in an upright state in a direction intersecting a conveying direction to a take-out portion, and a take-out unit that takes out the sheets conveyed by the main floor belt one by one in order from the frontmost sheet. The device includes a sub-floor belt that is capable of reverse conveyance, in which sheets are conveyed in a direction opposite to the conveying direction of the main floor belt, a tightness detection unit, and a height detection unit that detects the height of the sheets immediately prior to being taking out by the take-out unit, and performs sub-floor control.Type: GrantFiled: March 8, 2012Date of Patent: April 30, 2013Assignee: Toshiba CorporationInventors: Haruhiko Horiuchi, Takashi Hirayama
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Publication number: 20130038015Abstract: A sheet take-out device in which sheets are conveyed in an upright state and sheets having a low height can be stably taken out is provided. A sheet take-out device includes a main floor belt that conveys sheets that are placed in an upright state in a direction intersecting a conveying direction to a take-out portion, and a take-out unit that takes out the sheets conveyed by the main floor belt one by one in order from the frontmost sheet. The device includes a sub-floor belt that is capable of reverse conveyance, in which sheets are conveyed in a direction opposite to the conveying direction of the main floor belt, a tightness detection unit, and a height detection unit that detects the height of the sheets immediately prior to being taking out by the take-out unit, and performs sub-floor control.Type: ApplicationFiled: March 8, 2012Publication date: February 14, 2013Inventors: Haruhiko Horiuchi, Takashi Hirayama
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Patent number: 8342512Abstract: According to one embodiment, a pick up device for paper sheets includes an input unit configured to support a plurality of paper sheets in a stacked manner, a supply mechanism configured to move the placed paper sheets in a stacking direction and supply each paper sheet to an pick up position, a pick up mechanism configured to pick up the paper sheet at the pick up position from the input unit one by one, and a control unit configured to determine a supply speed or a feed amount of the paper sheets by the supply mechanism in accordance with thickness information per unit time of the picked up paper sheets obtained from a thickness detector, and configured to determine whether the supply mechanism is to be operated or stopped based on density information of the paper sheets obtained from a paper sheet sensor.Type: GrantFiled: August 26, 2010Date of Patent: January 1, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Tetsuo Watanabe, Kazuya Saimei, Takashi Hirayama
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Publication number: 20120223473Abstract: A sheet loading and handling apparatus that suppress anomalies in sheet supply operation and feed sheets in a stable manner is disclosed. The sheet loading unit includes a supply mechanism that moves a plurality of stacked sheets in a direction toward a feeding position located at an end of the loading unit, a feeding mechanism that individually feeds sheets to the feeding position, and a control unit controlling a plurality of sensors, which detect whether there is a sheet at the feeding position. The supply mechanism operates based on detection information of the sensors. The control unit monitors a relationship between signal information of the optical sensor and that of another sensor, and if a signal relationship that is not normal as compared to that of normal feeding occurs, the unit retracts the signal information of the optical sensor and uses only the signal information of the other sensor.Type: ApplicationFiled: February 29, 2012Publication date: September 6, 2012Inventors: Tetsuo Watanabe, Kazuya Saimei, Takashi Hirayama