Patents by Inventor Hiroshi Misumi
Hiroshi Misumi 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: 10982772Abstract: An eccentric valve has a drive mechanism, a drive force receiving part, a bearing for supporting a rotary shaft, and a return spring for generating a return spring force. During non-operation of the drive mechanism, the eccentric valve generates a separating-direction urging force to cause the rotary shaft to incline about the bearing serving as a fulcrum and urge the valve element in a direction away from the valve seat, the separating-direction urging force being a force caused by the return spring force. Either the valve element or the valve seat is provided with a sealing member to seal between the valve element and the valve seat during non-operation of the drive mechanism.Type: GrantFiled: May 6, 2019Date of Patent: April 20, 2021Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru Yoshioka, Kasumi Mishima, Naruto Ito, Makoto Fukui, Takashige Inagaki, Sunao Kitamura, Hiroshi Misumi
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Publication number: 20190257430Abstract: An eccentric valve has a drive mechanism, a drive force receiving part, a bearing for supporting a rotary shaft, and a return spring for generating a return spring force. During non-operation of the drive mechanism, the eccentric valve generates a separating-direction urging force to cause the rotary shaft to incline about the bearing serving as a fulcrum and urge the valve element in a direction away from the valve seal, the separating-direction urging force being a force caused by the return spring force. Either the valve element or the valve seat is provided with a sealing member to seal between the valve element and the valve seat during non-operation of the drive mechanism.Type: ApplicationFiled: May 6, 2019Publication date: August 22, 2019Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHIOKA, Kasumi MISHIMA, Naruto ITO, Makoto FUKUI, Takashige INAGAKI, Sunao KITAMURA, Hiroshi MISUMI
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Patent number: 10337622Abstract: An eccentric valve has a drive mechanism, a drive force receiving part, a bearing for supporting a rotary shaft, and a return spring for generating a return spring force. During non-operation of the drive mechanism, the eccentric valve generates a separating-direction urging force to cause the rotary shaft to incline about the bearing serving as a fulcrum and urge the valve element in a direction away from the valve seat, the separating-direction urging force being a force caused by the return spring force. Either the valve element or the valve seat is provided with a sealing member to seal between the valve element and the valve seat during non-operation of the drive mechanism.Type: GrantFiled: September 15, 2016Date of Patent: July 2, 2019Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru Yoshioka, Kasumi Mishima, Naruto Ito, Makoto Fukui, Takashige Inagaki, Sunao Kitamura, Hiroshi Misumi
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Patent number: 10260637Abstract: A double eccentric valve includes a first bearing and a second bearing spaced apart from each other along a center axis of a rotary shaft. When a motor is operated and the valve element is at a controlled folly-closed position corresponding to a fully-closed state, the rotary shaft is inclined about the first bearing serving as a fulcrum and is out of contact with the second bearing. When a valve opening degree is a predetermined opening degree corresponding to a valve open state of the valve element, the rotary shaft is restrained by the second bearing. In a small opening range between the valve opening degree at the controlled fully-closed position and the predetermined small opening degree, a variation amount in open area relative to a variation amount in valve opening degree is smaller than that in an opening range larger than the predetermined opening degree.Type: GrantFiled: April 10, 2018Date of Patent: April 16, 2019Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Hiroshi Misumi, Sunao Kitamura
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Publication number: 20190056032Abstract: An eccentric valve has a drive mechanism, a drive force receiving part, a bearing for supporting a rotary shaft, and a return spring for generating a return spring force. During non-operation of the drive mechanism, the eccentric valve generates a separating-direction urging force to cause the rotary shaft to incline about the bearing serving as a fulcrum and urge the valve element in a direction away from the valve seat, the separating-direction urging force being a force caused by the return spring force. Either the valve element or the valve seat is provided with a sealing member to seal between the valve element and the valve seat during non-operation of the drive mechanism.Type: ApplicationFiled: September 15, 2016Publication date: February 21, 2019Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHIOKA, Kasumi MISHIMA, Naruto ITO, Makoto FUKUI, Takashige INAGAKI, Sunao KITAMURA, Hiroshi MISUMI
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Publication number: 20180224000Abstract: A double eccentric valve includes a first bearing and a second bearing spaced apart from each other along a center axis of a rotary shaft. When a motor is operated and the valve element is at a controlled folly-closed position corresponding to a fully-closed state, the rotary shaft is inclined about the first bearing serving as a fulcrum and is out of contact with the second bearing. When a valve opening degree is a predetermined opening degree corresponding to a valve open state of the valve element, the rotary shaft is restrained by the second bearing. In a small opening range between the valve opening degree at the controlled fully-closed position and the predetermined small opening degree, a variation amount in open area relative to a variation amount in valve opening degree is smaller than that in an opening range larger than the predetermined opening degree.Type: ApplicationFiled: April 10, 2018Publication date: August 9, 2018Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Hiroshi MISUMI, Sunao KITAMURA
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Patent number: 10024438Abstract: A double eccentric valve includes: a drive mechanism which produces drive force for rotating a rotary shaft in a direction to open the valve; a drive force receiving unit provided integrally with the rotary shaft to receive the drive force; a bearing located between a valve element and the drive force receiving unit along the center axis of the rotary shaft to support the rotary shaft; and a return spring which produces return spring force for rotating the rotary shaft in a valve closing direction. The double eccentric valve is configured to generate a separating-direction biasing force which inclines the rotary shaft with the bearing at a fulcrum to bias the valve assembly away from a valve seat, the force being caused by the return spring force when the drive mechanism is not operated and acting in a direction perpendicular to the center axis of the bearing.Type: GrantFiled: June 24, 2015Date of Patent: July 17, 2018Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Hiroshi Misumi, Sunao Kitamura
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Patent number: 9995398Abstract: A double eccentric valve includes a valve seat having a seat surface, a valve element having an annular sealing surface, and a rotary shaft having an axis parallel to a radial direction of the valve element and offset from the center of a valve hole in a radial direction thereof. The sealing surface is positioned eccentrically from the axis toward an extending direction of an axis of the valve element. The valve element rotates about the axis of the rotary shaft between a fully-closed position in which the sealing surface is in surface contact with the seat surface and a fully-open position in which the sealing surface is furthest away from the seat surface. Simultaneously with start of rotation of the valve element from the fully-closed position, the sealing surface starts to separate from the seat surface and also move along rotation path about the axis of the rotary shaft.Type: GrantFiled: December 24, 2014Date of Patent: June 12, 2018Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Hiroshi Misumi, Sunao Kitamura
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Patent number: 9951876Abstract: A double eccentric valve includes a valve seat having a seat surface, a valve element having a sealing surface, a passage in which the valve seat and the valve element are arranged, and a rotary shaft which rotates the valve element attached to an attaching part of the rotary shaft. With respect to the valve element and the valve hole, a main axis of the rotary shaft is doubly eccentric in a passage direction and a direction perpendicular to the passage. By rotation about the main axis, the valve element moves between a fully closed position where the sealing surface contacts the seat surface and a fully open position where the sealing surface is furthest away from the seat surface. A second axis of the attaching part extends parallel to the main axis and eccentrically in a radial direction of the rotary shaft from the main axis.Type: GrantFiled: December 24, 2014Date of Patent: April 24, 2018Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Hiroshi Asanuma, Sunao Kitamura, Hiroshi Misumi
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Publication number: 20170152953Abstract: A double eccentric valve includes: a drive mechanism which produces drive force for rotating a rotation shaft in a direction to open the valve; a drive force receiving unit provided integrally with the rotation shaft to receive the drive force; a bearing located between a valve element and the drive force receiving unit along the center axis of the rotation shaft to support the rotation shaft; and a return spring which produces return spring force for rotating the rotation shaft in a valve closing direction. The double eccentric valve is configured to generate a separating-direction biasing force which inclines the rotation shaft with the bearing at a fulcrum to bias the valve assembly away from a valve seat, the force being caused by the return spring force when the drive mechanism is not operated and acting in a direction perpendicular to the center axis of the bearing.Type: ApplicationFiled: June 24, 2015Publication date: June 1, 2017Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Hiroshi MISUMI, Sunao KITAMURA
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Publication number: 20160290513Abstract: A double eccentric valve includes a valve seat having a seat surface, a valve element having a sealing surface, a passage in which the valve seat and the valve element are arranged, and a rotary shaft which rotates the valve element attached to an attaching part of the rotary shaft. With respect to the valve element and the valve hole, a main axis of the rotary shaft is doubly eccentric in a passage direction and a direction perpendicular to the passage. By rotation about the main axis, the valve element moves between a fully closed position where the sealing surface contacts the seat surface and a fully open position where the sealing surface is furthest away from the seat surface. A second axis of the attaching part extends parallel to the main axis and eccentrically in a radial direction of the rotary shaft from the main axis.Type: ApplicationFiled: December 24, 2014Publication date: October 6, 2016Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Hiroshi ASANUMA, Sunao KITAMURA, Hiroshi MISUMI
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Publication number: 20160290514Abstract: A double eccentric valve includes a valve seat having a seat surface, a valve element having an annular sealing surface, and a rotary shaft having an axis parallel to a radial direction of the valve element and offset from the center of a valve hole in a radial direction thereof. The sealing surface is positioned eccentrically from the axis toward an extending direction of an axis of the valve element. The valve element rotates about the axis of the rotary shaft between a fully-closed position in which the sealing surface is in surface contact with the seat surface and a fully-open position in which the sealing surface is furthest away from the seat surface. Simultaneously with start of rotation of the valve element from the fully-closed position, the sealing surface starts to separate from the seat surface and also move along rotation path about the axis of the rotary shaft.Type: ApplicationFiled: December 24, 2014Publication date: October 6, 2016Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Hiroshi MISUMI, Sunao KITAMURA
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Patent number: 9066372Abstract: A heating cooking device includes a temperature sensing element that contacts a bottom surface of a top plate directly or indirectly and measures a temperature of the top plate, a spring portion one end side of which is supported by a heater unit and the other end side of which presses the temperature sensing element against the top plate, and a spring that presses the heater unit toward the top plate. An elastic force n1 with which the spring portion presses the temperature sensing element against the top plate is smaller than an elastic force n2 with which the spring presses the heater unit toward the top plate.Type: GrantFiled: October 5, 2010Date of Patent: June 23, 2015Assignee: SHIBAURA ELECTRONICS CO., LTD.Inventors: Noriyuki Nakayama, Morihisa Hamada, Hiroshi Misumi
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Publication number: 20130186881Abstract: A heating cooking device includes a temperature sensing element that contacts a bottom surface of a top plate directly or indirectly and measures a temperature of the top plate, a spring portion one end side of which is supported by a heater unit and the other end side of which presses the temperature sensing element against the top plate, and a spring that presses the heater unit toward the top plate. An elastic force n1 with which the spring portion presses the temperature sensing element against the top plate is smaller than an elastic force n2 with which the spring presses the heater unit toward the top plate.Type: ApplicationFiled: October 5, 2010Publication date: July 25, 2013Applicant: SHIBAURA ELECTRONICS CO., LTD.Inventors: Noriyuki Nakayama, Morihisa Hamada, Hiroshi Misumi
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Patent number: 8419275Abstract: Provided is a temperature sensor capable of stably keeping the accuracy of detected temperatures. The temperature sensor of the present invention comprises a sensor element (1) comprising a temperature sensing element (2) whose electrical resistance changes according to temperature; a pair of lead wires (4) electrically connected to the temperature sensing element (2); and a covering material (5) which seals the temperature sensing element (2) and portions of the lead wires (4) in a prescribed range; wherein the lead wires (4) are led out of the sealed ends (6) of the covering material (5). The temperature sensor further comprises a metallic protective tube (20) which houses the sensor element (1) except part of the lead wires (4); and a shield comprising a ceramic sealed end closing element (7) which encloses the sealed ends (6), and a lead wire protective tube (8). The shield is loosely fitted inside the metallic protective tube (20).Type: GrantFiled: March 18, 2010Date of Patent: April 16, 2013Assignee: Shibaura Electronics Co., Ltd.Inventors: Noriyuki Nakayama, Kazumasa Nakamura, Hiroshi Misumi, Terukazu Koike
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Publication number: 20120063488Abstract: Provided is a temperature sensor capable of stably keeping the accuracy of detected temperatures. The temperature sensor of the present invention comprises a sensor element (1) comprising a temperature sensing element (2) whose electrical resistance changes according to temperature; a pair of lead wires (4) electrically connected to the temperature sensing element (2); and a covering material (5) which seals the temperature sensing element (2) and portions of the lead wires (4) in a prescribed range; wherein the lead wires (4) are led out of the sealed ends (6) of the covering material (5). The temperature sensor further comprises a metallic protective tube (20) which houses the sensor element (1) except part of the lead wires (4); and a shield comprising a ceramic sealed end closing element (7) which encloses the sealed ends (6), and a lead wire protective tube (8). The shield is loosely fitted inside the metallic protective tube (20).Type: ApplicationFiled: March 18, 2010Publication date: March 15, 2012Applicant: SHIBAURA ELECTRONICS CO., LTD.Inventors: Noriyuki Nakayama, Kazumasa Nakamura, Hiroshi Misumi, Terukazu Koike
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Patent number: 5964398Abstract: A vane member comprises a first member and a second member, the first member and the second member are joined by that an insert member whose melting temperature is lower than melting temperatures of the first and second members contacts the first and second members, the insert member is heated to a welding temperature which is lower than the melting temperatures of the first and second members and is higher than the melting temperature of the insert member so that a mutual diffusion between at least an original base component of the insert member and at least an original base component of the first member different from the original base component of the insert member and a mutual diffusion between at least the original base component of the insert member and at least an original base component of the second member different from the original base component of the insert member are caused by the heating, and the mutual diffusions by the heating are continued at least until the original base component of the iType: GrantFiled: September 15, 1997Date of Patent: October 12, 1999Assignee: Hitachi, Ltd.Inventors: Akiomi Kohno, Kazuaki Yokoi, Keiji Taguchi, Hiroshi Misumi, Yoshiharu Ueyama, Kazuyuki Koide, Koji Hayashi
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Patent number: 5017102Abstract: A magnet pump has a magnet coupling for magnetically coupling an inner ring yoke and an outer ring yoke so as to magnetically transmit a torque from driving part to driven part of the pump to rotate the driven part. The magnet pump comprises magnetized magnet pieces bonded to the outer peripheral surface of the inner ring yoke and magnetized magnet pieces bonded to the inner peripheral surface of the outer ring yoke; non-magnetic cylindrical covers covering the surface of the inner ring yoke carrying the magnet pieces and the surface of the outer ring yoke carrying the magnet pieces, respectively; and mold resin parts filling the gap between the surface of the inner ring yoke and the associated non-magnetic cylindrical cover and the gap between the surface of the outer yoke ring and the associated non-magnetic cylindrical cover.Type: GrantFiled: November 28, 1989Date of Patent: May 21, 1991Assignee: Hitachi, Ltd.Inventors: Takashi Shimaguchi, Toshihiro Yamada, Tatsuo Natori, Akihisa Okada, Hiroshi Misumi