Patents by Inventor Ryoji ICHIYAMA
Ryoji ICHIYAMA 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: 20240003441Abstract: Provided are a three-way valve for flow rate control and a temperature control device, which have improved sealing performance at a sealed portion at which a valve body is rotatably sealed against a fluid having a low temperature of about ?85° C. as compared to a case without sealing means for sealing an end portion of the valve body on a side closer to drive means so that the end portion is rotatable with respect to a valve main body, the sealing means having a substantially U-shaped cross section and being made of a synthetic resin, and being urged in an opening direction by a spring member made of a metal.Type: ApplicationFiled: November 30, 2021Publication date: January 4, 2024Applicant: SHINWA CONTROLS CO., LTD.Inventor: Ryoji ICHIYAMA
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Publication number: 20240003442Abstract: Provided are a three-way valve for flow rate control and a temperature control device, in which operation malfunction of drive means due to a fluid having a low temperature of about ?85° C. is suppressed as compared to a case in which driving force transmission means and joining means do not form a heat-transfer suppressing portion that is made of a material having a thermal conductivity smaller than a thermal conductivity of a material of a valve main body and a valve body and suppresses transfer of heat to the drive means. The driving force transmission means and the joining means are made of a material such as zirconia, which has a thermal conductivity smaller than a thermal conductivity of the valve main body and the valve body, and form a heat-transfer suppressing portion that suppresses transfer of heat to the drive means.Type: ApplicationFiled: November 30, 2021Publication date: January 4, 2024Applicant: SHINWA CONTROLS CO., LTD.Inventor: Ryoji ICHIYAMA
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Publication number: 20230417331Abstract: Provided are a three-way valve for flow rate control and a temperature control device, which have improved sealing performance against a fluid having a low temperature of about ?85° C. as compared to a case in which a pressure applying portion does not include a communication member having a cylindrical shape with both end portions in a longitudinal direction sealed by sealing means including a coating member, which has a substantially U-shaped cross section and is made of a synthetic resin, and is urged in an opening direction by a spring member made of a metal.Type: ApplicationFiled: November 30, 2021Publication date: December 28, 2023Applicant: SHINWA CONTROLS CO., LTD.Inventors: Koji MATSUDA, Ryoji ICHIYAMA, Shigehiko ONO
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Patent number: 11326709Abstract: The present invention prevents that a diaphragm boss drops off from a diaphragm when a movable core is moved up. The present invention is a diaphragm type of solenoid valve including: a main body (10) having a diaphragm seating surface (12) in which a flow channel is opened; a diaphragm (23) configured to be seated on the diaphragm seating surface (12) of the main body (10); a diaphragm boss (22) holding the diaphragm (23); a movable core (21) holding the diaphragm boss (22); and a coil containing body (40) configured to apply an electromagnetic force to the movable core (21) in order to move the movable core in a direction away from the diaphragm seating surface (12) of the main body such that the diaphragm (23) is released from the diaphragm seating surface (12); wherein the diaphragm (23) is integrally formed with the diaphragm boss (22) by a baking process.Type: GrantFiled: November 5, 2019Date of Patent: May 10, 2022Assignee: Shinwa Controls Co., LtdInventor: Ryoji Ichiyama
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Publication number: 20220075395Abstract: A valve unit includes a first solenoid valve for a first fluid in a first channel; a first branch channel branched from the first channel on the upstream side of the first supply-side solenoid valve; a first branch-side switching valve for the first fluid in the first branch channel; a second solenoid valve for a second fluid in a second channel; a second branch channel branched from the second channel on the upstream side of the second solenoid valve; a solenoid switching valve for the second fluid in the second branch channel; a reception channel to receive a fluid from a first outlet opening or a second outlet opening to flow through a predetermined area and returns; first and second circulation channels bifurcated from the reception channel; a first circulation-side solenoid valve for the first circulation channel; and a second circulation-side solenoid valve for the second circulation channel.Type: ApplicationFiled: December 27, 2018Publication date: March 10, 2022Applicant: SHINWA CONTROLS CO., LTDInventors: Shigehiko ONO, Ryoji ICHIYAMA
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Publication number: 20210396328Abstract: The present invention prevents that a diaphragm boss drops off from a diaphragm when a movable core is moved up. The present invention is a diaphragm type of solenoid valve including: a main body (10) having a diaphragm seating surface (12) in which a flow channel is opened; a diaphragm (23) configured to be seated on the diaphragm seating surface (12) of the main body (10); a diaphragm boss (22) holding the diaphragm (23); a movable core (21) holding the diaphragm boss (22); and a coil containing body (40) configured to apply an electromagnetic force to the movable core (21) in order to move the movable core in a direction away from the diaphragm seating surface (12) of the main body such that the diaphragm (23) is released from the diaphragm seating surface (12); wherein the diaphragm (23) is integrally formed with the diaphragm boss (22) by a baking process.Type: ApplicationFiled: November 5, 2019Publication date: December 23, 2021Applicant: SHINWA CONTROLS CO., LTDInventor: Ryoji ICHIYAMA
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Patent number: 11098816Abstract: The main component of a valve body is a ternary fluororubber of a vinylidene fluoride/tetrafluoroethylene/hexafluoropropylene copolymer, the JIS K 6253 hardness of the valve body is 50-90, the tensile strength of the valve body is 10-35 MPa, and the elongation at break of the valve body is 100-500%. Relative to the inside diameter of a gas discharge channel provided to an inner-side area of the valve seat, the distance by which a movable core is moved by an electromagnetic coil is within a range of 0.1 times to 0.3 times, the diameter of the valve body is within a range of 1.5 times to 3.0 times, the thickness of the valve body is 0.3 times or greater, the protruding height of the valve seat is 0.3 times or greater, and the inside diameter of an annular gas accumulating space is 2.0 times to 5.0 times.Type: GrantFiled: April 3, 2018Date of Patent: August 24, 2021Assignee: Shinwa Controls Co., LtdInventors: Ryoji Ichiyama, Hidemitsu Ooka, Hiroki Yajima
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Patent number: 11067315Abstract: A temperature control system includes: first and second refrigerator units; a first fluid flow apparatus that allows a first fluid to flow therethrough and that is cooled by the first refrigerator unit; a second fluid flow apparatus that allows a second fluid to flow therethrough and that is cooled by the second refrigerator unit; and a valve unit that is configured to allow the first fluid or the second fluid to selectively flow out therefrom. The first refrigerator unit has, in a medium-temperature-side refrigerator, a medium-temperature-side first expansion valve and a medium-temperature-side second expansion valve. A medium-temperature-side second evaporator corresponding to the medium-temperature-side second expansion valve and a low-temperature-side condenser of a low-temperature-side refrigerator constitute a cascade condenser.Type: GrantFiled: March 1, 2019Date of Patent: July 20, 2021Assignee: Shinwa Controls Co., LtdInventors: Masakatsu Yamawaki, Teiichirou Ueda, Shigehiko Ono, Ryoji Ichiyama
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Publication number: 20210116151Abstract: A temperature control system includes: first and second refrigerator units; a first fluid flow apparatus that allows a first fluid to flow therethrough and that is cooled by the first refrigerator unit; a second fluid flow apparatus that allows a second fluid to flow therethrough and that is cooled by the second refrigerator unit; and a valve unit that is configured to allow the first fluid or the second fluid to selectively flow out therefrom. The first refrigerator unit has, in a medium-temperature-side refrigerator, a medium-temperature-side first expansion valve and a medium-temperature-side second expansion valve. A medium-temperature-side second evaporator corresponding to the medium-temperature-side second expansion valve and a low-temperature-side condenser of a low-temperature-side refrigerator constitute a cascade condenser.Type: ApplicationFiled: March 1, 2019Publication date: April 22, 2021Applicant: SHINWA CONTROLS CO., LTDInventors: Masakatsu YAMAWAKI, Teiichirou UEDA, Shigehiko ONO, Ryoji ICHIYAMA
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Patent number: 10767782Abstract: A valve seat, which a valve body of a movable core sits on, protrudes from an outside region of the valve seat located at an end of a columnar body toward the movable core. A gas flow passage in the movable core has: an inflow passage extending on a stationary core side in the direction in which the movable core moves; and two or more outflow passages branched on a valve body side from the inflow passage. A protrusion height of the valve seat is 0.3 times or more an inner diameter of the outflow passages. A gas accumulation space includes: a region located away from the movable core by a distance 0.5 times or more the inner diameter of the outflow passage; and a region located away from the movable core by a distance greater than or equal to the inner diameter of the outflow passage.Type: GrantFiled: May 25, 2017Date of Patent: September 8, 2020Assignee: Shinwa Controls Co., Ltd.Inventors: Hidekazu Yamauchi, Ryoji Ichiyama
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Publication number: 20190376611Abstract: The main component of a valve body is a ternary fluororubber of a vinylidene fluoride/tetrafluoroethylene/hexafluoropropylene copolymer, the JIS K 6253 hardness of the valve body is 50-90, the tensile strength of the valve body is 10-35 MPa, and the elongation at break of the valve body is 100-500%. Relative to the inside diameter of a gas discharge channel provided to an inner-side area of the valve seat, the distance by which a movable core is moved by an electromagnetic coil is within a range of 0.1 times to 0.3 times, the diameter of the valve body is within a range of 1.5 times to 3.0 times, the thickness of the valve body is 0.3 times or greater, the protruding height of the valve seat is 0.3 times or greater, and the inside diameter of an annular gas accumulating space is 2.0 times to 5.0 times.Type: ApplicationFiled: April 3, 2018Publication date: December 12, 2019Applicant: SHINWA CONTROLS CO., LTDInventors: Ryoji ICHIYAMA, Hidemitsu OOKA, Hiroki YAJIMA
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Publication number: 20190178405Abstract: A valve seat, which a valve body of a movable core sits on, protrudes from an outside region of the valve seat located at an end of a columnar body toward the movable core. A gas flow passage in the movable core has: an inflow passage extending on a stationary core side in the direction in which the movable core moves; and two or more outflow passages branched on a valve body side from the inflow passage. A protrusion height of the valve seat is 0.3 times or more an inner diameter of the outflow passages. A gas accumulation space includes: a region located away from the movable core by a distance 0.5 times or more the inner diameter of the outflow passage; and a region located away from the movable core by a distance greater than or equal to the inner diameter of the outflow passage.Type: ApplicationFiled: May 25, 2017Publication date: June 13, 2019Applicant: SHINWA CONTROLS CO., LTDInventors: Hidekazu YAMAUCHI, Ryoji ICHIYAMA