Patents by Inventor Masatoshi Iyatani
Masatoshi Iyatani 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: 11846366Abstract: A solenoid includes a first fixed iron core and a second fixed iron core located on a first end side and a second end side of an axial direction of a coil, a first movable iron core and a second movable iron core located therebetween and attracted by the first fixed iron core and the second fixed iron core by passage of current through the coil, respectively, a spring that biases the first movable iron core to the second fixed iron core side, and a leaf spring that regulates movement of the first movable iron core to the second fixed iron core side with respect to the second movable iron core. The movement of the first movable iron core in a direction orthogonal to the axial direction of the coil with respect to the first fixed iron core and the second fixed iron core is regulated.Type: GrantFiled: September 2, 2020Date of Patent: December 19, 2023Assignee: KYB CORPORATIONInventors: Yoshifumi Kobayashi, Tomoyasu Abe, Yuusuke Furuta, Naoaki Danshita, Kohei Doi, Masatoshi Iyatani
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Publication number: 20230282405Abstract: A solenoid includes: a coil; a first fixed iron core disposed on an axial first-end side of the coil; a second fixed iron core disposed on an axial second-end side of the coil with a gap from the first fixed iron core; a tubular first movable iron core disposed between the first fixed iron core and the second fixed iron core: a second movable iron core having a tubular shape with a bottom, slidably inserted into the first movable iron core, disposed between the first fixed iron core and the second fixed iron core with a bottom portion facing the second fixed iron core; and a spring interposed between the first movable iron core and the first fixed iron core, and pressing the first movable iron core to the second fixed iron core side.Type: ApplicationFiled: August 17, 2021Publication date: September 7, 2023Applicant: KYB CorporationInventors: Yoshifumi KOBAYASHI, Tomoyasu ABE, Toshihiro MORI, Naoaki DANSHITA, Masatoshi IYATANI, Kohei DOI
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Publication number: 20220254555Abstract: A solenoid includes a first fixed iron core and a second fixed iron core located on one axial end side and the other axial end side of a coil, a first movable member and a second movable member located between those fixed iron cores and configured to be attracted to the first fixed iron core and the second fixed iron core, respectively, by energization of the coil, a spring configured to bias the first movable member toward the second fixed iron core, and a first regulating portion made from a non-magnetic material, provided integrally with the first movable member or the second movable member, and configured to regulate movement of the first movable member toward the second fixed iron core with respect to the second movable member.Type: ApplicationFiled: September 2, 2020Publication date: August 11, 2022Applicant: KYB CORPORATIONInventors: Yoshifumi KOBAYASHI, Tomoyasu ABE, Yuusuke FURUTA, Naoaki DANSHITA, Kohei DOI, Masatoshi IYATANI
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Publication number: 20220252127Abstract: A solenoid includes a first fixed iron core and a second fixed iron core located on a first end side and a second end side of an axial direction of a coil, a first movable iron core and a second movable iron core located therebetween and attracted by the first fixed iron core and the second fixed iron core by passage of current through the coil, respectively, a spring housed in a spring chamber formed on the first fixed iron core side of the first movable iron core and biasing the first movable iron core to the second fixed iron core side, a leaf spring that regulates movement of the first movable iron core to the second fixed iron core side with respect to the second movable iron core, and a throttle passage that causes the spring chamber to communicate with outside.Type: ApplicationFiled: September 2, 2020Publication date: August 11, 2022Applicant: KYB CORPORATIONInventors: Yoshifumi KOBAYASHI, Tomoyasu ABE, Yuusuke FURUTA, Naoaki DANSHITA, Kohei DOI, Masatoshi IYATANI
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Publication number: 20220252128Abstract: A solenoid includes a first fixed iron core and a second fixed iron core located on a first end side and a second end side of an axial direction of a coil, a first movable iron core and a second movable iron core located therebetween and attracted by the first fixed iron core and the second fixed iron core by passage of current through the coil, respectively, a spring that biases the first movable iron core to the second fixed iron core side, a leaf spring that regulates movement of the first movable iron core to the second fixed iron core side with respect to the second movable iron core, and a communication passage that causes the first fixed iron core side of the second movable iron core to communicate with the second fixed iron core side.Type: ApplicationFiled: September 2, 2020Publication date: August 11, 2022Applicant: KYB CORPORATIONInventors: Yoshifumi KOBAYASHI, Tomoyasu ABE, Yuusuke FURUTA, Naoaki DANSHITA, Kohei DOI, Masatoshi IYATANI
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Publication number: 20220243839Abstract: A solenoid includes a first fixed iron core and a second fixed iron core located on a first end side and a second end side of an axial direction of a coil, a first movable iron core and a second movable iron core located therebetween and attracted by the first fixed iron core and the second fixed iron core by passage of current through the coil, respectively, a spring that biases the first movable iron core to the second fixed iron core side, and a leaf spring that regulates movement of the first movable iron core to the second fixed iron core side with respect to the second movable iron core. The movement of the first movable iron core in a direction orthogonal to the axial direction of the coil with respect to the first fixed iron core and the second fixed iron core is regulated.Type: ApplicationFiled: September 2, 2020Publication date: August 4, 2022Applicant: KYB CORPORATIONInventors: Yoshifumi KOBAYASHI, Tomoyasu ABE, Yuusuke FURUTA, Naoaki DANSHITA, Kohei DOI, Masatoshi IYATANI
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Patent number: 10106136Abstract: An electronic control unit includes: a sensor board on which a sensor is mounted; a control board configured to control an operation of each electric component, based on a physical quantity detected by the sensor; and a housing configured to accommodate the sensor board and the control board, wherein: in an internal space of the housing, a first accommodation chamber in which the electric component is accommodated, a second accommodation chamber in which the sensor board and the control board are accommodated in a hierarchical state, and a partitioning portion which partitions between the first accommodation chamber and the second accommodation chamber are formed; and the sensor board and the control board are supported by the partitioning portion, and a rib is protrudingly provided on the partitioning portion.Type: GrantFiled: May 19, 2015Date of Patent: October 23, 2018Assignee: AUTOLIV NISSIN BRAKE SYSTEMS JAPAN CO., LTD.Inventor: Masatoshi Iyatani
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Patent number: 9616866Abstract: Inlet and outlet ports are in the top part of a base; a reservoir is in the bottom part of the base; pumps are between the inlet port and the reservoir; a pressure booster valve, a depressurizing valve, a cut valve, and a caliper pressure sensor are along the center axis of each pump; the pressure booster valve is above the center axis; the depressurizing valve is below the center axis; the cut valve is between the pressure booster valve and the depressurizing valve and is nearer the middle of the base than the pressure booster valve and the depressurizing valve; and a suction valve is between the depressurizing valves aligned nearer the end of the base than a vertical reference line passing through the rotational center axes of the pumps. The suction valve communicates with cut valves, and a master pressure sensor is on the reference line.Type: GrantFiled: January 23, 2014Date of Patent: April 11, 2017Assignee: Autoliv Nissin Brake Systems Japan Co., Ltd.Inventor: Masatoshi Iyatani
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Patent number: 9592799Abstract: One embodiment provides an electronic control unit including: a base body; a control circuit board that controls electric parts; and a housing that is attached to one surface of the base body. The housing includes an accommodating portion which accommodates the control circuit board thereinside and a flange. The flange includes an attaching hole penetrating therethrough. A part of the accommodating portion is positioned on an extension of a center axis of the attaching hole. An attaching pin projects from the one surface of the base body so as to be inserted into the attaching hole. An attaching portion is formed on the attaching pin so as to be positioned between the flange and the accommodating portion. An elastic member is attached to the attaching portion so as to bias the flange toward the one surface of the base body.Type: GrantFiled: November 14, 2014Date of Patent: March 14, 2017Assignee: AUTOLIV NISSIN BRAKE SYSTEMS JAPAN CO., LTD.Inventor: Masatoshi Iyatani
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Patent number: 9415755Abstract: A vehicle brake hydraulic control apparatus includes a reservoir, a hydraulic pressure pump, an orifice, a damper and a one-way valve. The reservoir absorbs an excess brake hydraulic pressure of a wheel brake. The hydraulic pressure pump suctions brake fluid absorbed by the reservoir and returns the suctioned brake fluid to a master cylinder through a return line. The orifice is provided in the return line. The damper is connected to the return line between the orifice and the hydraulic pressure pump and damps discharge pressure pulsation of the hydraulic pressure pump. The one-way valve is provided in the return line between the damper and the orifice and prevents a hydraulic flow from an orifice side to a damper side.Type: GrantFiled: March 25, 2014Date of Patent: August 16, 2016Assignee: AUTOLIV NISSIN BRAKE SYSTEMS JAPAN CO., LTD.Inventors: Masatoshi Iyatani, Naoki Masuda
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Patent number: 9221438Abstract: An electronic control unit which includes: a sensor board to which a sensor for detecting a predetermined physical quantity is attached; a control board which controls an operation of an electric part based on the physical quantity detected by the sensor; and a housing which accommodates the sensor board and the control board, wherein the housing has a first room for accommodating the electric part, a second room for accommodating the sensor board and the control board in a stacked condition, and a partition portion for separating the first room and the second room from each other, wherein a recess which is opened to the second room is formed in the partition portion, and a sensor accommodating portion for accommodating the sensor is formed using the recess.Type: GrantFiled: June 12, 2014Date of Patent: December 29, 2015Assignee: NISSIN KOGYO CO., LTD.Inventors: Masatoshi Iyatani, Naoki Obuse
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Publication number: 20150353065Abstract: Inlet and outlet ports are in the top part of a base; a reservoir is in the bottom part of the base; pumps are between the inlet port and the reservoir; a pressure booster valve, a depressurizing valve, a cut valve, and a caliper pressure sensor are along the center axis of each pump; the pressure booster valve is above the center axis; the depressurizing valve is below the center axis; the cut valve is between the pressure booster valve and the depressurizing valve and is nearer the middle of the base than the pressure booster valve and the depressurizing valve; and a suction valve is between the depressurizing valves aligned nearer the end of the base than a vertical reference line passing through the rotational center axes of the pumps. The suction valve communicates with cut valves, and a master pressure sensor is on the reference line.Type: ApplicationFiled: January 23, 2014Publication date: December 10, 2015Inventor: Masatoshi IYATANI
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Publication number: 20150251641Abstract: An electronic control unit includes: a sensor board on which a sensor is mounted; a control board configured to control an operation of each electric component, based on a physical quantity detected by the sensor; and a housing configured to accommodate the sensor board and the control board, wherein: in an internal space of the housing, a first accommodation chamber in which the electric component is accommodated, a second accommodation chamber in which the sensor board and the control board are accommodated in a hierarchical state, and a partitioning portion which partitions between the first accommodation chamber and the second accommodation chamber are formed; and the sensor board and the control board are supported by the partitioning portion, and a rib is protrudingly provided on the partitioning portion.Type: ApplicationFiled: May 19, 2015Publication date: September 10, 2015Inventor: Masatoshi IYATANI
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Patent number: 9061666Abstract: An electronic control unit includes: a sensor board on which a sensor is mounted; a control board configured to control an operation of each electric component, based on a physical quantity detected by the sensor; and a housing configured to accommodate the sensor board and the control board, wherein: in an internal space of the housing, a first accommodation chamber in which the electric component is accommodated, a second accommodation chamber in which the sensor board and the control board are accommodated in a hierarchical state, and a partitioning portion which partitions between the first accommodation chamber and the second accommodation chamber are formed; and the sensor board and the control board are supported by the partitioning portion, and a rib is protrudingly provided on the partitioning portion.Type: GrantFiled: September 14, 2010Date of Patent: June 23, 2015Assignee: NISSIN KOGYO CO., LTD.Inventor: Masatoshi Iyatani
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Publication number: 20150137589Abstract: One embodiment provides an electronic control unit including: a base body; a control circuit board that controls electric parts; and a housing that is attached to one surface of the base body. The housing includes an accommodating portion which accommodates the control circuit board thereinside and a flange. The flange includes an attaching hole penetrating therethrough. A part of the accommodating portion is positioned on an extension of a center axis of the attaching hole. An attaching pin projects from the one surface of the base body so as to be inserted into the attaching hole. An attaching portion is formed on the attaching pin so as to be positioned between the flange and the accommodating portion. An elastic member is attached to the attaching portion so as to bias the flange toward the one surface of the base body.Type: ApplicationFiled: November 14, 2014Publication date: May 21, 2015Inventor: Masatoshi IYATANI
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Publication number: 20140292066Abstract: A vehicle brake hydraulic control apparatus includes a reservoir, a hydraulic pressure pump, an orifice, a damper and a one-way valve. The reservoir absorbs an excess brake hydraulic pressure of a wheel brake. The hydraulic pressure pump suctions brake fluid absorbed by the reservoir and returns the suctioned brake fluid to a master cylinder through a return line. The orifice is provided in the return line. The damper is connected to the return line between the orifice and the hydraulic pressure pump and damps discharge pressure pulsation of the hydraulic pressure pump. The one-way valve is provided in the return line between the damper and the orifice and prevents a hydraulic flow from an orifice side to a damper side.Type: ApplicationFiled: March 25, 2014Publication date: October 2, 2014Applicant: NISSIN KOGYO CO., LTD.Inventors: Masatoshi IYATANI, Naoki MASUDA
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Publication number: 20140297148Abstract: An electronic control unit which includes: a sensor board to which a sensor for detecting a predetermined physical quantity is attached; a control board which controls an operation of an electric part based on the physical quantity detected by the sensor; and a housing which accommodates the sensor board and the control board, wherein the housing has a first room for accommodating the electric part, a second room for accommodating the sensor board and the control board in a stacked condition, and a partition portion for separating the first room and the second room from each other, wherein a recess which is opened to the second room is formed in the partition portion, and a sensor accommodating portion for accommodating the sensor is formed using the recess.Type: ApplicationFiled: June 12, 2014Publication date: October 2, 2014Inventors: Masatoshi IYATANI, Naoki OBUSE
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Patent number: 8807015Abstract: According to one embodiment, there is provide a piston pump, including: a cylinder having a bottomed cylindrical shape; a piston slidable within the cylinder, the cylinder and the piston defining a pressure chamber therebetween; a suction valve unit disposed in a suction passage of the pressure chamber; and a discharge valve unit disposed in a discharge passage of the pressure chamber, wherein the piston includes a cylindrical piston portion and a large diameter piston portion provided to cover one end of the cylindrical piston portion, and wherein the large diameter piston portion includes a working fluid guide groove extending thereinside along the axial direction of the piston.Type: GrantFiled: March 28, 2011Date of Patent: August 19, 2014Assignee: Nissin Kogyo Co., Ltd.Inventor: Masatoshi Iyatani
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Patent number: 8797758Abstract: An electrical connection structure of an electronic board includes: a board support member formed of synthetic resin; an electronic board fixed to the board support member; an electrical connection pad disposed on the electronic board; a bus bar disposed in the board support member; and a bonding wire that electrically connects the electrical connection pad and the bus bar. The bus bar includes: an exposed portion exposed in a face of the board support member; an embedded portion embedded in the board support member; and a connection portion extending from the exposed portion and being electrically connected to an electrical component. An end of the bonding wire is bonded to the exposed portion, and a first cut portion is formed in the embedded portion.Type: GrantFiled: March 10, 2011Date of Patent: August 5, 2014Assignee: Nissan Kogyo Co., Ltd.Inventor: Masatoshi Iyatani
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Patent number: 8783794Abstract: An electronic control unit which includes: a sensor board to which a sensor for detecting a predetermined physical quantity is attached; a control board which controls an operation of an electric part based on the physical quantity detected by the sensor; and a housing which accommodates the sensor board and the control board, wherein the housing has a first room for accommodating the electric part, a second room for accommodating the sensor board and the control hoard in a stacked condition, and a partition portion for separating the first room and the second room from each other, wherein a recess which is opened to the second room is formed in the partition portion, and a sensor accommodating portion for accommodating the sensor is formed using the recess.Type: GrantFiled: May 27, 2009Date of Patent: July 22, 2014Assignee: Nissin Kogyo Co., Ltd.Inventors: Masatoshi Iyatani, Naoki Obuse