Patents by Inventor Hideyuki Matsui
Hideyuki Matsui 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: 20130239320Abstract: Provided is a water passage switching device capable of opening and closing valves by a very easy operation. The water passage switching device (10; 122) of the present invention capable of switching between at least three water spouting and stopping modes by opening and closing valves including: valve elements (26a, 26b, 26c; 142) configured to be moved between a valve-open position and a valve-closed position in response to the each water spouting and stopping mode; a pivotally movable tilting operation member (6; 112) directly operated by a user to switch between the each water spouting and stopping mode; and valve actuating rods (40a, 40b, 40c; 148) arranged around a pivot point of the tilting operation member, and each adapted to open and close a respective one of the plurality of valve elements based on a tilting movement in each direction of the tilting operation member.Type: ApplicationFiled: March 12, 2013Publication date: September 19, 2013Applicant: TOTO LTD.Inventors: Yutaka Aihara, Yasufumi Uemura, Masaya Tanabe, Tsuyoshi Miura, Sho Ishiyama, Tomohiro Kudo, Hideyuki Matsui, Daisuke Kazaoka
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Patent number: 8353462Abstract: A hot and cold water mixing valve including a temperature adjusting dial, and a cylindrical casing having formed therein a hot water inlet and a cold water inlet is provided with a control valve member in which one end thereof is subjected to a load from a biasing member and the other end is subjected to a load from an actuator. By balancing between the loads applied by the biasing member and the actuator, a mixture ratio between the hot water which flows in through the hot water inlet and the cold water which flows in through the cold water inlet is adjusted. A temperature adjuster adjusts a position of the control valve member through the biasing member and includes a tapered skirt portion, which spreads in a radial direction, at an end on the control valve member side thereof.Type: GrantFiled: December 5, 2007Date of Patent: January 15, 2013Assignees: Toto Ltd., Nippon Thermostat Co., Ltd.Inventors: Kensaku Todaka, Hideyuki Matsui, Eiji Seki, Isao Negishi
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Publication number: 20110011942Abstract: [Problem] To improve durability of a hot and cold water mixing valve. [Means to Solve the Problem] The hot and cold water mixing valve having a cylindrical casing 1 is provided with a control valve member 2 which adjusts an opening/closing ratio between a hot water inlet a and a cold water inlet b, by balancing between loads applied by a biasing member 4 and an actuator 5, and cylindrical temperature adjusting means 8 and 9 which adjusts a position of the control valve member 2 when subjected to rotation by a user. In the temperature adjusting means 8 and 9, an upper surface 81 is formed at one end, a knob 82 is provided in the center of the upper surface 81, and a ring-shaped recess 83 is formed around the knob 82 at the upper surface 81. The temperature adjusting means 8 and 9 are arranged inside the casing 1 such that the knob 83 is inserted, coaxially with the casing 1, into the hole 12 which opens at one end of the casing 1.Type: ApplicationFiled: December 1, 2008Publication date: January 20, 2011Applicants: TOTO LTD., NIPPON THERMOSTAT CO., LTD.Inventors: Kensaku Todaka, Hideyuki Matsui, Eiji Seki, Isao Negishi
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Publication number: 20100314457Abstract: A hot and cold water mixing valve including a temperature adjusting dial D, and a cylindrical casing 1 having formed therein a hot water inlet a and a cold water inlet b is provided with a control valve member 2 in which one end is subjected to a load from a biasing member 4 and the other end is subjected to a load from an actuator 5, and an opening/closing ratio between the hot water inlet a and the cold water inlet b is changed by balancing between the loads applied by the biasing member 4 and the actuator 5, to adjust a mixture ratio between the hot water which flows in through the hot water inlet a and the cold water which flows in through the cold water inlet b, and a temperature adjusting means (8, 900) whose one side is fixed to the temperature adjusting dial D and whose other side adjusts a position of the control valve member 2 through the biasing member 4.Type: ApplicationFiled: December 5, 2007Publication date: December 16, 2010Applicants: TOTO LTD., NIPPON THERMOSTAT CO., LTD.Inventors: Kensaku Todaka, Hideyuki Matsui, Eiji Seki, Isao Negishi
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Patent number: 7296593Abstract: A switching valve assembly 32 for use in a mixing faucet is disclosed. The switching valve assembly comprises a switching valve assembly 32 for use in a mixing faucet, which comprises a manual operation member 36 adapted to be moved in response to a pressing operation by a user, a push rod 35 having a base end joined to the manual operation member, a pilot valve 40 disposed relative to a distal end of the push rod, a coil spring 42 interposed between the pilot valve and the distal end of the push rod, a diaphragm main valve 46 having a pilot-valve port designed such that the pilot valve is selectively brought into contact therewith and separated therefrom, a pressure chamber 48 formed on the side of a back surface of the main valve to contain a part of the push rod, the pilot valve and the coil spring, and a valve seat 52 designed such that a front surface of the main valve is selectively seated thereon and unseated therefrom.Type: GrantFiled: September 1, 2003Date of Patent: November 20, 2007Assignee: Toto Ltd.Inventors: Hideyuki Matsui, Osamu Tokunaga
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Patent number: 7258133Abstract: A pressure reducing valve comprises a valve support member provided with a water passage, a valve seat fitting on the portion of the valve support member primary side relative to the secondary side end of the water passage, a cup-shaped valve body fitting on the secondary side end of the valve support member to slide and capable of abutting the valve seat at the open end, while enclosing the secondary side end of the water passage at the cylindrical portion, a seal member for sealing the sliding contact part between the valve support member and the valve body, and a resilient member disposed in the valve body to force the valve body away from the valve seat.Type: GrantFiled: March 7, 2003Date of Patent: August 21, 2007Assignee: ToTo Ltd.Inventors: Hideyuki Matsui, Osamu Tokunaga, Yoshika Hirai
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Publication number: 20060096642Abstract: A switching valve assembly 32 for use in a mixing faucet is disclosed. The switching valve assembly comprises a switching valve assembly 32 for use in a mixing faucet, which comprises a manual operation member 36 adapted to be moved in response to a pressing operation by a user, a push rod 35 having a base end joined to the manual operation member, a pilot valve 40 disposed relative to a distal end of the push rod, a coil spring 42 interposed between the pilot valve and the distal end of the push rod, a diaphragm main valve 46 having a pilot-valve port designed such that the pilot valve is selectively brought into contact therewith and separated therefrom, a pressure chamber 48 formed on the side of a back surface of the main valve to contain a part of the push rod, the pilot valve and the coil spring, and a valve seat 52 designed such that a front surface of the main valve is selectively seated thereon and unseated therefrom.Type: ApplicationFiled: September 1, 2003Publication date: May 11, 2006Inventors: Hideyuki Matsui, Osamu Tokunaga
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Publication number: 20050126636Abstract: A pressure reducing valve comprises a valve support member provided with a water passage, a valve seat fitting on the portion of the valve support member primary side relative to the secondary side end of the water passage, a cup-shaped valve body fitting on the secondary side end of the valve support member to slide and capable of abutting the valve seat at the open end, while enclosing the secondary side end of the water passage at the cylindrical portion, a seal member for sealing the sliding contact part between the valve support member and the valve body, and a resilient member disposed in the valve body to force the valve body away from the valve seat.Type: ApplicationFiled: March 7, 2003Publication date: June 16, 2005Inventors: Hideyuki Matsui, Osamu Tokunaga, Yoshika Hirai
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Patent number: 6189957Abstract: For protecting a sensitive electric device, a motor vehicle is constructed to have an electric device protecting structure near a dash panel to which a cowl box is connected. A watertight case installs therein the sensitive electric device and is installed in the cowl box. A passage structure is provided to establish an air flow communication between an interior of the watertight case and an interior of a passenger room.Type: GrantFiled: October 13, 1999Date of Patent: February 20, 2001Assignees: Calsonic Kansei Corporation, Nissan Motor Co., Ltd.Inventors: Hideyuki Matsui, Kazunori Osawa, Eiichirou Tanabe, Yoshihiro Nakajima, Masayuki Miyamoto, Tsuneyuki Takahashi, Shinya Sato
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Patent number: 5961051Abstract: A shower apparatus reduces the effects of water hammer within a portion of a flow route connecting a shower head to a supply, when a flow adjusting mechanism proximal the shower head is operated. The shower apparatus adjusts pressure of a supply fluid dependant upon the degree of throttling of the flow route and the flow adjusting mechanism controls the amount of flow of the supply fluid dependant upon a degree of opening thereof to the discharge end of a shower head. The structure providing the pressure adjustment and the flow adjusting mechanism are each disposed successively from upstream of the flow route, between a shower side flow route provided in a water plug and the shower head or a discharge end of the shower head.Type: GrantFiled: June 16, 1997Date of Patent: October 5, 1999Assignee: Toto Ltd.Inventors: Hideyuki Matsui, Masatoshi Enoki
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Patent number: 5924449Abstract: A hot and cold water mixing device which comprises one or more valve units each constituted by accommodating an operating member within a hollow casing, and a housing into which the one or more valve units are inserted and arranged and in which two primary water passages communicating with a hot water supply source and a cold water supply source, respectively, are formed. The housing is composed of an outer housing (1) and an inner housing (2) which is inserted into the outer housing and which is formed with water holes (11,12,13) communicating with said valve units, and at least two primary water passages (5,6) are formed between the outer housing and the inner housing by separating members (3).Type: GrantFiled: July 2, 1997Date of Patent: July 20, 1999Assignee: Toto Ltd.Inventors: Masatoshi Enoki, Toshihide Ushita, Hideyuki Matsui
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Patent number: 5878949Abstract: A temperature-actuated valve device which comprises a body 5 provided with a fluid inlet opening 6b and a fluid outlet opening 5a, a vale seat 5b formed on the peripheral edge of the outlet opening 5a, a main valve body 8 which is disposed movably within the body 5 in the flow direction of fluid and which is brought into and out of an abutting engagement with the outlet opening 5a to perform the opening and closing operation, a pilot valve body 7 which is disposed movably within the body 5 in the same direction as the direction of movement of the main valve body 8 and which is of a tubular shape causing a change in the fluid pressure acting on the upstream side or the downstream side of the main valve body 8, and a temperature-actuated spring 11 which is linked to the pilot valve body 7 and which deforms when it reaches a predetermined temperature and above.Type: GrantFiled: May 29, 1997Date of Patent: March 9, 1999Assignees: Toto Ltd., Piolax, Inc.Inventors: Hideyuki Matsui, Masatoshi Enoki, Tsutomu Kato, Tetsuo Masatake, Toshiyuki Ooshima
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Patent number: 5730167Abstract: A hot and cold water mixing device which comprises an inner housing (11) provided with a hot water inlet hole (17), a cold water inlet hole (18) and a mixed water delivery hole (19), and an outer housing (31) having openings (33, 34, 32) communicating with a hot supply passage (15), a cold water supply passage (16) and a mixed water supply passage (14). The inner housing (11) is inserted into the outer housing (31) to form a hot water passage (20), a cold water passage (35) and a mixed water passage (30) between the outer housing (31) and the inner housing (11). The hot water passage (20) and the mixed water passage (30) are formed by enclosing the hot water inlet hole (17) and the mixed water delivery hole (19) by the respective seal members (26, 29) which each are partly arranged so as to intersect with the circumferential line of the inner housing (11).Type: GrantFiled: October 16, 1995Date of Patent: March 24, 1998Assignee: Toto Ltd.Inventors: Masatoshi Enoki, Toshihide Ushita, Hideyuki Matsui, Tatsuo Matsukuma, Yuji Matsuo, Mineo Nakashima, Hirosi Tutiya, Satoru Furuta