Patents by Inventor Motoharu Takai
Motoharu Takai 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: 10385743Abstract: An oil separator includes: an oil separator main body that is formed with a gas flow path between a gas introduction port that introduces blow-by gas and a gas discharge port that discharges the blow-by gas; a flap that opens and closes the gas flow path, and that includes a substantially circular shaped valve section including a straight line portion of a substantially straight line shape at a portion of an outer periphery of the valve section; and a first impact wall for capturing oil, that is provided along the outer periphery of the valve section at a downstream side of the valve section in the gas flow path, that includes a straight line portion of a substantially straight line shape along the straight line portion of the valve section, and that is impacted by the blow-by gas flowing out from a peripheral edge of the valve section.Type: GrantFiled: December 5, 2014Date of Patent: August 20, 2019Assignee: NIFCO INC.Inventor: Motoharu Takai
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Patent number: 10006325Abstract: Provide is a PCV valve which can be quickly defreezed and provides a favorable sealing to the heater against the blow-by gas. The PCV valve (2) comprises a housing (6) defining a flow passage (4) for blow-by gas, a valve member (30) positioned in the flow passage to cooperate with a valve seat (18) formed in the housing, a spring (38) biasing the valve member toward the valve seat, a heat transmission member (40) including a heat dissipating part (42) surrounding the valve member, and a heating unit (52) including a heating element (66) for heating the heat transmission member, the heating element being separated from the flow passage in an air tight manner.Type: GrantFiled: December 5, 2014Date of Patent: June 26, 2018Assignee: Nifco Inc.Inventors: Tsuyoshi Okazaki, Motoharu Takai
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Publication number: 20160312671Abstract: Provide is a PCV valve which can be quickly defreezed and provides a favorable sealing to the heater against the blow-by gas. The PCV valve (2) comprises a housing (6) defining a flow passage (4) for blow-by gas, a valve member (30) positioned in the flow passage to cooperate with a valve seat (18) formed in the housing, a spring (38) biasing the valve member toward the valve seat, a heat transmission member (40) including a heat dissipating part (42) surrounding the valve member, and a heating unit (52) including a heating element (66) for heating the heat transmission member, the heating element being separated from the flow passage in an air tight manner.Type: ApplicationFiled: December 5, 2014Publication date: October 27, 2016Inventors: Tsuyoshi Okazaki, Motoharu Takai
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Publication number: 20160312672Abstract: An oil separator includes: an oil separator main body that is formed with a gas flow path between a gas introduction port that introduces blow-by gas and a gas discharge port that discharges the blow-by gas; a flap that opens and closes the gas flow path, and that includes a substantially circular shaped valve section including a straight line portion of a substantially straight line shape at a portion of an outer periphery of the valve section; and a first impact wall for capturing oil, that is provided along the outer periphery of the valve section at a downstream side of the valve section in the gas flow path, that includes a straight line portion of a substantially straight line shape along the straight line portion of the valve section, and that is impacted by the blow-by gas flowing out from a peripheral edge of the valve section.Type: ApplicationFiled: December 5, 2014Publication date: October 27, 2016Inventor: Motoharu Takai
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Patent number: 9310006Abstract: A hose connector comprises a connector main body (12, 112, 190), a lock member (14, 82, 88, 94, 114), a cam mechanism (70, 170: 68, 168, 194) that converts the rotational movement of the lock member into an axial movement thereof, and clamping features (24; 42, 142) formed in the inner and outer circumferential surfaces of the lock member and the connector main body which clamps a hose end by moving axially toward each other. The hose end can be connected to a pipe or a pipe-like member with ease in a reliable manner and without requiring a tool.Type: GrantFiled: October 28, 2013Date of Patent: April 12, 2016Assignee: Nifco Inc.Inventors: Motoharu Takai, Tsuyoshi Okazaki
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Patent number: 9261086Abstract: A fluid distribution valve which selectively distributes a fluid supplied from a fluid supply source to a plurality of flow channels, includes first and second branch pipes communicated with the fluid supply source; and a valve body selectively closing either one of the two branch pipes, and including a through hole allowing a circulation of the fluid into the second branch pipe from the fluid supply source in a case wherein the first branch pipe is closed. While the valve body closes the first branch pipe in an initial state thereof, the valve body is displaced or deformed according to a pressure difference of the fluid in the a first branch pipe side and the a second branch pipe side when the fluid is supplied from the fluid supply source so as to open the first branch pipe, and to close the through hole.Type: GrantFiled: October 5, 2010Date of Patent: February 16, 2016Assignee: NIFCO INC.Inventors: Motoharu Takai, Mitsuyuki Wakabayashi
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Publication number: 20150115599Abstract: A hose connector comprises a connector main body (12, 112, 190), a lock member (14, 82, 88, 94, 114), a cam mechanism (70, 170: 68, 168, 194) that converts the rotational movement of the lock member into an axial movement thereof, and clamping features (24; 42, 142) formed in the inner and outer circumferential surfaces of the lock member and the connector main body which clamps a hose end by moving axially toward each other. The hose end can be connected to a pipe or a pipe-like member with ease in a reliable manner and without requiring a tool.Type: ApplicationFiled: October 28, 2013Publication date: April 30, 2015Applicant: NIFCO INC.Inventors: Motoharu Takai, Tsuyoshi Okazaki
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Patent number: 9016728Abstract: A connector includes a connector main body having a mounting tube for mounting a hose; and a lock member loosely fitted in a guide member of the connector main body slidably in an axis line direction. The lock member includes a claw member provided to stand from an inner wall face in a mounted hose direction facing thereto. The mounting tube includes a projecting piece on an outer end circumference. After the hose has been inserted into the mounting tube, if the hose or the lock member is pulled, the lock member moves forward, so that the hose is locked by the claw member, and the hose is clamped by the projecting piece provided on a mounting tube side and the lock member. As a result, the hose can be easily connected, and a high sealing property can be obtained.Type: GrantFiled: May 10, 2012Date of Patent: April 28, 2015Assignee: NIFCO Inc.Inventor: Motoharu Takai
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Patent number: 8826947Abstract: A valve device used by being attached to a fuel tank includes a case provided with an airflow valve opening which communicates with the outside of the tank, on an upper portion, and also provided with a fuel inflow section located on a lower side of the airflow valve opening, and a float body housed in the case so as to be vertically movable, and also seated in the airflow valve opening by being elevated by the fuel flowed into the case through the inflow section. In the case, an airflow section which interconnects the inside of the tank and the inside of the case is formed in a higher side than a waterline of the float body at the seating time, and also at the seating time, this airflow section is restricted.Type: GrantFiled: April 16, 2009Date of Patent: September 9, 2014Assignee: Nifco Inc.Inventors: Takatsugu Hirose, Itsuo Honda, Motoharu Takai, Shinzo Watanabe
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Publication number: 20140166109Abstract: A fluid distribution valve which selectively distributes a fluid supplied from a fluid supply source to a plurality of flow channels, includes first and second branch pipes communicated with the fluid supply source; and a valve body selectively closing either one of the two branch pipes, and including a through hole allowing a circulation of the fluid into the second branch pipe from the fluid supply source in a case wherein the first branch pipe is closed. While the valve body closes the first branch pipe in an initial state thereof, the valve body is displaced or deformed according to a pressure difference of the fluid in the a first branch pipe side and the a second branch pipe side when the fluid is supplied from the fluid supply source so as to open the first branch pipe, and to close the through hole.Type: ApplicationFiled: October 5, 2010Publication date: June 19, 2014Applicant: NIFCO INC.Inventors: Motoharu Takai, Mitsuyuki Wakabayashi
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Publication number: 20140103639Abstract: A connector includes a connector main body having a mounting tube for mounting a hose; and a lock member loosely fitted in a guide member of the connector main body slidably in an axis line direction. The lock member includes a claw member provided to stand from an inner wall face in a mounted hose direction facing thereto. The mounting tube includes a projecting piece on an outer end circumference. After the hose has been inserted into the mounting tube, if the hose or the lock member is pulled, the lock member moves forward, so that the hose is locked by the claw member, and the hose is clamped by the projecting piece provided on a mounting tube side and the lock member. As a result, the hose can be easily connected, and a high sealing property can be obtained.Type: ApplicationFiled: May 10, 2012Publication date: April 17, 2014Applicant: NIFCO INC.Inventor: Motoharu Takai
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Patent number: 8297298Abstract: In a vent control valve for a fuel tank, a housing receiving a float assembly therein is provided with a communication hole passed across a wall of the housing, and an opening of the communication hole facing an interior of the housing is directly exposed to an interior of the housing when the float assembly is in a low position and overlaps with a peripheral wall of the float assembly when the float assembly is in a high position. By suitably selecting the size of the communication hole and/or the number thereof, a desired delay in the dropping of the liquid fuel level in the housing following the filling up of the fuel tank can be achieved. Thereby, overfilling of the fuel tank can be avoided.Type: GrantFiled: January 22, 2010Date of Patent: October 30, 2012Assignees: Nifco, Inc., Yachiyo Industry Co., Ltd.Inventors: Toru Matsuzaki, Takatsugu Hirose, Motoharu Takai, Itsuo Honda
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Publication number: 20110139301Abstract: A valve device used by being attached to a fuel tank includes a case provided with an airflow valve opening which communicates with the outside of the tank, on an upper portion, and also provided with a fuel inflow section located on a lower side of the airflow valve opening, and a float body housed in the case so as to be vertically movable, and also seated in the airflow valve opening by being elevated by the fuel flowed into the case through the inflow section. In the case, an airflow section which interconnects the inside of the tank and the inside of the case is formed in a higher side than a waterline of the float body at the seating time, and also at the seating time, this airflow section is restricted.Type: ApplicationFiled: April 16, 2009Publication date: June 16, 2011Applicant: NIFCO INC.Inventors: Takatsugu Hirose, Itsuo Honda, Motoharu Takai, Shinzo Watanabe
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Publication number: 20100200079Abstract: In a vent control valve for a fuel tank, a housing receiving a float assembly therein is provided with a communication hole passed across a wall of the housing, and an opening of the communication hole facing an interior of the housing is directly exposed to an interior of the housing when the float assembly is in a low position and overlaps with a peripheral wall of the float assembly when the float assembly is in a high position. By suitably selecting the size of the communication hole and/or the number thereof, a desired delay in the dropping of the liquid fuel level in the housing following the filling up of the fuel tank can be achieved. Thereby, overfilling of the fuel tank can be avoided. As the float assembly drops to such an extent as to clear the communication hole, the fuel vapor is allowed to flow more freely into the interior of the housing via the communication hole, and this causes an increase in the speed of the float to drop.Type: ApplicationFiled: January 22, 2010Publication date: August 12, 2010Applicants: NIFCO INC., YACHIYO INDUSTRY CO., LTD.Inventors: Toru Matsuzaki, Takatsugu Hirose, Motoharu Takai, Itsuo Honda
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Patent number: D375890Type: GrantFiled: October 26, 1995Date of Patent: November 26, 1996Assignee: Nifco Inc.Inventor: Motoharu Takai
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Patent number: D376309Type: GrantFiled: October 26, 1995Date of Patent: December 10, 1996Assignee: Nifco Inc.Inventor: Motoharu Takai