Patents by Inventor Koji Hakoda
Koji Hakoda 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: 10502337Abstract: A solenoid valve includes a body having a flow channel, and a solenoid part coupled to the body. The solenoid part includes a core housing. A movable core can be accommodated inside the core housing. A flange part of the core housing is expanded radially outwardly from a guide part which guides the movable core. Further, a thick portion is provided at a boundary portion between the flange part and the guide part on a core part side. The thick portion becomes gradually thick toward the guide part.Type: GrantFiled: February 23, 2017Date of Patent: December 10, 2019Assignee: HONDA MOTOR CO., LTD.Inventors: Tomoyoshi Koyama, Koji Hakoda, Tomohiko Hatakeda, Satoshi Inoue
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Patent number: 10260640Abstract: In a valve apparatus, an annular contact portion made of elastic material is provided on a valve portion of a valve plug. A plurality of annular grooves are formed on a proximal end surface of a valve seat member which abuts against the contact portion. The annular grooves are formed around a communication hole through which fluid flows. The annular grooves have different diameters, and are concentric with one another.Type: GrantFiled: February 23, 2017Date of Patent: April 16, 2019Assignee: HONDA MOTOR CO., LTD.Inventors: Koji Hakoda, Tomoyoshi Koyama, Hirotaka Otaki, Tomohiko Hatakeda, Satoshi Inoue
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Patent number: 9874290Abstract: A valve device is equipped with a body, a valve element drive mechanism, and a housing. The body has a tubular insertion section, in which a movable member of the valve element drive mechanism is inserted. A first flange is formed at an end of the insertion section that faces the housing. Furthermore, a ring is fitted externally on an outer side wall of the first flange. By projections, which are provided on an inner side wall of the ring, being embedded in an outer side wall of the insertion section, the ring is made integral with the first flange. The housing is of a bottomed tubular shape that covers the valve element drive mechanism, and an edge of an open end of the housing is crimped to the first flange through the ring.Type: GrantFiled: March 29, 2016Date of Patent: January 23, 2018Assignees: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.Inventors: Takahide Kato, Koji Hakoda, Takahiro Sasaki, Tomohiko Hatakeda, Satoshi Inoue
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Publication number: 20170248248Abstract: A solenoid valve includes a body having a flow channel, and a solenoid part coupled to the body. The solenoid part includes a core housing. A movable core can be accommodated inside the core housing. A flange part of the core housing is expanded radially outwardly from a guide part which guides the movable core. Further, a thick portion is provided at a boundary portion between the flange part and the guide part on a core part side. The thick portion becomes gradually thick toward the guide part.Type: ApplicationFiled: February 23, 2017Publication date: August 31, 2017Applicant: Honda Motor Co., Ltd.Inventors: Tomoyoshi Koyama, Koji Hakoda, Tomohiko Hatakeda, Satoshi Inoue
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Publication number: 20170248238Abstract: In a valve apparatus, an annular contact portion made of elastic material is provided on a valve portion of a valve plug. A plurality of annular grooves are formed on a proximal end surface of a valve seat member which abuts against the contact portion. The annular grooves are formed around a communication hole through which fluid flows. The annular grooves have different diameters, and are concentric with one another.Type: ApplicationFiled: February 23, 2017Publication date: August 31, 2017Applicant: HONDA MOTOR CO., LTD.Inventors: Koji Hakoda, Tomoyoshi Koyama, Hirotaka Otaki, Tomohiko Hatakeda, Satoshi Inoue
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Publication number: 20160290522Abstract: A valve device is equipped with a body, a valve element drive mechanism, and a housing. The body has a tubular insertion section, in which a movable member of the valve element drive mechanism is inserted. A first flange is formed at an end of the insertion section that faces the housing. Furthermore, a ring is fitted externally on an outer side wall of the first flange. By projections, which are provided on an inner side wall of the ring, being embedded in an outer side wall of the insertion section, the ring is made integral with the first flange. The housing is of a bottomed tubular shape that covers the valve element drive mechanism, and an edge of an open end of the housing is crimped to the first flange through the ring.Type: ApplicationFiled: March 29, 2016Publication date: October 6, 2016Inventors: Takahide Kato, Koji Hakoda, Takahiro Sasaki, Tomohiko Hatakeda, Satoshi Inoue
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Publication number: 20140084195Abstract: A solenoid valve includes first and second attraction portions in the interior of a housing disposed on an upper part of a valve body. A movable iron core, which confronts the first and second attraction portions, is disposed displaceably in the housing. Further, in the interior of the first attraction portion, which is recessed in a concave shape, a first guide body is installed, the first guide body being formed in a cylindrical shape from a non-magnetic material, and a first rod member of the movable iron core is supported displaceably in axial directions by the first guide body. On the other hand, a cylindrically shaped second guide body is disposed on a lower end of the housing, and a second rod member of the movable iron core is supported displaceably in the axial directions by the second guide body.Type: ApplicationFiled: September 26, 2013Publication date: March 27, 2014Applicants: HONDA MOTOR CO., LTD., KEIHIN CORPORATIONInventors: Koji Hakoda, Hideto Hiramoto, Takao Ikenaga, Ryoichi Yoshitomi