Patents by Inventor Nobutaka Kiku
Nobutaka Kiku 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: 11255449Abstract: A valve device includes: a housing having an inner peripheral wall defining a cylindrical space therein; a fluid introduction path formed in the housing to communicate with the cylindrical space; fluid discharge paths formed in the housing to communicate with the cylindrical space; a valve body accommodated in the cylindrical space and formed of a spherical body having a communication path communicating the fluid introduction path with at least one of the fluid discharge paths; a valve body rotating mechanism rotating the valve body about an axis of the cylindrical space; a protrusion protruding from the inner peripheral wall toward the axis of the cylindrical space to surround at least a portion of an opening in the fluid introduction path; and a seal member provided on the protrusion and capable of abutting on the valve body.Type: GrantFiled: September 20, 2019Date of Patent: February 22, 2022Assignee: AISIN CORPORATIONInventors: Koichi Kashiwagi, Toshihide Yamada, Nobutaka Kiku
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Publication number: 20200103039Abstract: A valve device includes: a housing having an inner peripheral wall defining a cylindrical space therein; a fluid introduction path formed in the housing to communicate with the cylindrical space; fluid discharge paths formed in the housing to communicate with the cylindrical space; a valve body accommodated in the cylindrical space and formed of a spherical body having a communication path communicating the fluid introduction path with at least one of the fluid discharge paths; a valve body rotating mechanism rotating the valve body about an axis of the cylindrical space; a protrusion protruding from the inner peripheral wall toward the axis of the cylindrical space to surround at least a portion of an opening in the fluid introduction path; and a seal member provided on the protrusion and capable of abutting on the valve body.Type: ApplicationFiled: September 20, 2019Publication date: April 2, 2020Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Koichi KASHIWAGI, Toshihide YAMADA, Nobutaka KIKU
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Patent number: 9551426Abstract: A fluid control valve includes: a valve housing in which a flow path having gas inlet and outlet is formed; a drive device attached to the valve housing; a valve shaft connected to an output shaft of the drive device and moving in an axial direction; and a valve body attached so as to radially extend to an axis of the valve shaft, and opening and closing the flow path by being moved with the valve shaft so that one side surface moves away from or comes into contact with a valve seat formed in the flow path, wherein the valve housing is attached to an attachment target member so that the valve shaft is tilted, and the valve body includes a wall portion corresponding to a portion where a liquid inside the flow path collects due to its weight, within a portion having the valve seat, and formed along an edge portion on the other side surface opposite to one side surface of the valve body.Type: GrantFiled: July 3, 2014Date of Patent: January 24, 2017Assignee: AISIN SEIKI KABUSHIKI KAISHAInventor: Nobutaka Kiku
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Publication number: 20150008353Abstract: A fluid control valve includes: a valve housing in which a flow path having gas inlet and outlet is formed; a drive device attached to the valve housing; a valve shaft connected to an output shaft of the drive device and moving in an axial direction; and a valve body attached so as to radially extend to an axis of the valve shaft, and opening and closing the flow path by being moved with the valve shaft so that one side surface moves away from or comes into contact with a valve seat formed in the flow path, wherein the valve housing is attached to an attachment target member so that the valve shaft is tilted, and the valve body includes a wall portion corresponding to a portion where a liquid inside the flow path collects due to its weight, within a portion having the valve seat, and formed along an edge portion on the other side surface opposite to one side surface of the valve body.Type: ApplicationFiled: July 3, 2014Publication date: January 8, 2015Applicant: Aisin Seiki Kabushiki KaishaInventor: Nobutaka KIKU
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Patent number: 6908069Abstract: A fluid valve includes a base body having a fluid intake, a fluid outlet and a valve accommodation chamber formed between the fluid intake and fluid outlet, a cylindrical valve accommodated movably in the valve accommodation chamber, and a driving portion for moving the cylindrical valve in a direction for adjusting the opening degree of the cylindrical valve. The cylindrical valve is moved by the driving portion so as to change flow path areas of the first valve second valve flow paths thereby changing the flow rate flowing through the inner peripheral flow path.Type: GrantFiled: September 22, 2003Date of Patent: June 21, 2005Assignee: Aisin Seiki Kabushiki KaishaInventor: Nobutaka Kiku
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Publication number: 20050001187Abstract: A fluid valve includes a base body having a fluid intake, a fluid outlet and a valve accommodation chamber formed between the fluid intake and fluid outlet, a cylindrical valve accommodated movably in the valve accommodation chamber, and a driving portion for moving the cylindrical valve in a direction for adjusting the opening degree of the cylindrical valve. The cylindrical valve is moved by the driving portion so as to change flow path areas of the first valve second valve flow paths thereby changing the flow rate flowing through the inner peripheral flow path.Type: ApplicationFiled: September 22, 2003Publication date: January 6, 2005Applicant: AISIN SEIKI KABUSHIKI KAISHAInventor: Nobutaka Kiku