Patents by Inventor Satoshi Umemura

Satoshi Umemura 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).

  • Patent number: 8292273
    Abstract: A fluid filled type vibration damping device having a pressure-receiving chamber and an equilibrium chamber disposed on either side of a partition member. A movable cover member juxtaposed against the partition member from the pressure receiving chamber side to cover a communicating hole of the partition member. An outside peripheral edge of the movable cover member is held in intimate contact against the partition member through urging force of an elastic retainer portion. Pressure of both chambers will acts on both faces of a movable rubber film, thereby constituting a pressure fluctuation absorbing mechanism. The outside peripheral edge of the movable cover member is separated from the partition member in opposition to the urging force by negative pressure in the pressure receiving chamber for providing a shunting mechanism for preventing excessive negative pressure in the pressure receiving chamber.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: October 23, 2012
    Assignee: Tokai Rubber Insustries, Ltd.
    Inventors: Mutsumi Muraoka, Satoshi Umemura
  • Publication number: 20120248668
    Abstract: A fluid-filled vibration-damping device of multidirectional vibration-damping type including: a first mounting member; a second mounting member; a main rubber elastic body connecting the two mounting members; a pressure-receiving fluid chamber; an equilibrium fluid chamber; a first orifice passage interconnecting the two fluid chambers; a plurality of outer peripheral fluid chambers situated on an outer peripheral side of the main rubber elastic body; a second orifice passage interconnecting the outer peripheral fluid chambers; and an intermediate sleeve affixed to the main rubber elastic body. The intermediate sleeve and the second mounting member each include a step portion at an axially medial section thereof, and are mated and fixed to each other at opposite sides of the corresponding step portion. The two step portions are opposed to each other in an axial direction so that the second orifice passage is formed between axially opposed faces of the step portions.
    Type: Application
    Filed: February 2, 2012
    Publication date: October 4, 2012
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventor: Satoshi UMEMURA
  • Publication number: 20120242021
    Abstract: A fluid-filled type vibration damping device including a base component and a tubular mating component. The tubular mating component is externally fitted onto the base component by means of a diameter-constricting caulking with a sealing rubber clasped therebetween so as to constitute a mate-fastened portion. The tubular mating component extends axially outward beyond a sealed section of the mate-fastened portion so as to provide a caulking tube portion. A diametrical position of the tubular mating component at the sealed section is determined by contact of the caulking tube portion against an outside peripheral face of a positioning projection provided on the base component so as to define a diametrical positioning portion. The caulking tube portion is constricted in diameter and held in engagement with an axial edge portion of the positioning projection so as to form an axial positioning portion.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 27, 2012
    Applicants: NISSAN MOTOR CO., LTD., TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Hironori KOYAMA, Mutsumi MURAOKA, Hironori DAITO, Satoshi UMEMURA, Jyoji TSUTSUMIDA, Shinichi SUGANUMA, Takeshi HAMANAKA, Kaoru MURAKAMI
  • Publication number: 20120242020
    Abstract: A fluid-filled type active vibration damping device including: a first mounting member; a second mounting member; a main rubber elastic body connecting the first and second mounting members; a fluid chamber; an oscillation member that partially defines a wall of the fluid chamber; an actuator having an output shaft, the output shaft being connected to the oscillation member; a connecting member that interconnects the oscillation member and the output shaft at one point with the oscillation member superposed against a projecting distal end of the output shaft; and an abutting portion provided by superposed faces of the oscillation member and the output shaft being positioned in abutment with each other at an outer peripheral side of a connected section where the oscillation member and the output shaft are interconnected by the connecting member.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 27, 2012
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Mutsumi MURAOKA, Satoshi UMEMURA, Hironori KOYAMA
  • Publication number: 20120230858
    Abstract: A first rotor and a second rotor have helical teeth each including a dedendum portion, an addendum portion, and an addendum tip portion. Profiles of the addendum portions of the first and second rotors are formed by cycloidal curves. Profiles of the dedendum portions of the first and second rotors are formed by trochoidal curves. A pitch circle of the second rotor is larger than that of the first rotor. The number of teeth of the second rotor is larger than that of the first rotor. A width angle of the first rotor is not less than a minimum angle at which the addendum tip portions of the first rotor are in line contact with an outer circle of the first rotor, and not more than an angle at which a discharge volume ratio is approximately equal to that at the minimum angle.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 13, 2012
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuya IZAWA, Satoshi UMEMURA, Takahisa BAN, Taku INOUE
  • Patent number: 8241012
    Abstract: In a structure for mounting a filter in a compressor, a mounting member is connected to the filter. A receiving hole is formed in a housing of the compressor for receiving therein the mounting member. A first fitting portion is formed on an inner circumferential surface of a holding portion of the filter. A second fitting portion is formed on an outer circumferential surface of the mounting member for having fitting relation to the first fitting portion for an overlap distance in a radial direction of the receiving hole. When the mounting member is received in the receiving hole with the fitting relation, the filter is disposed in a fluid passage of the housing. A clearance having a dimension is formed between an outer circumferential surface of the holding portion and an inner circumferential surface of the receiving hole. Minimum value of the dimension is smaller than the overlap distance.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 14, 2012
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Yoshinori Inoue, Hiroyuki Nakaima, Yoichi Takashima, Kazuya Shinmyo, Atsuo Sakagami, Masaya Sakamoto, Satoshi Umemura, Naoki Koeda, Yuji Hashimoto, Hisaya Kondo
  • Patent number: 8152482
    Abstract: A displacement control valve for a variable displacement compressor. The displacement control valve includes a drive force transmission body, a pressure sensitive chamber, an internal passage, and a valve body. The valve body includes an annular seal which is contactable with a valve seat surface facing toward the first valve body. The drive force transmission body includes a drive rod and a valve body structure having a shaft passage and forming the first valve body. The drive rod is fitted to the shaft passage and coupled to the valve body structure so as to form a gap passage between an outer surface of the drive rod and a wall surface of the shaft passage. The internal passage includes a recess arranged radially inward from the annular seal, the shaft passage, and the gap passage. The gap passage is in direct communication with the recess.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: April 10, 2012
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Eagle Industry Co., Ltd.
    Inventors: Satoshi Umemura, Tatsuya Hirose, Yuji Hashimoto, Norio Uemura, Ryosuke Cho, Keigo Shirafuji
  • Patent number: 8104750
    Abstract: A fluid filled vibration damping device including: a fluid passage interconnecting a pressure receiving chamber partially defined by a rubber elastic body connecting a first and second mounting members, and an equilibrium chamber partially defined by a flexible film; a movable valve body provided for switching the fluid passage between a communicating state and a blocked state through reciprocating operation; an electric motor employed for actuating the movable valve body; an actuating force converter mechanism provided on an actuating force transmission path from the electric motor to the movable valve body. A rotational actuating force of the electric motor is transmitted as reciprocating actuating force to the movable valve body by the actuating force converter mechanism.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: January 31, 2012
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Koichi Hasegawa, Hironori Koyama, Satoshi Umemura
  • Publication number: 20110233834
    Abstract: A second bush of a torque rod is fastened and fixed such that a mating fastening member sandwiches an inner fitting in the axial direction. A rubber stopper on an acceleration side projecting from an outer fitting to the inner fitting is provided such that the rubber thickness increases toward a front end. The inner fitting is provided with a stopper contact forming a recessed space in which the rubber stopper is inserted. After the rubber stopper comes in contact with the stopper contact in a stopper function, the rubber stopper is deformed so as to fill the recessed space, and concurrently bulges in the axial direction to come in contact with the mating fastening member.
    Type: Application
    Filed: February 10, 2011
    Publication date: September 29, 2011
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Hiroyuki KASHIHARA, Jyoji TSUTSUMIDA, Satoshi UMEMURA
  • Patent number: 8021124
    Abstract: A capacity control valve includes a valve body having a first valve portion for opening/closing a discharge-side path and a second valve portion for opening/closing a suction-side path, a pressure sensitive body arranged in a third valve chamber in the middle of the suction-side path, a valve seat body provided at the pressure sensitive body, and a third valve portion connected to the valve body for opening/closing the suction-side path by engagement and disengagement with the valve seat body. One of an engagement face of the third valve portion and a seat face of the valve seat body is formed into a spherical shape with a radius of curvature R satisfying 9 mm<R<11 mm and the other of the engagement face of the third valve portion and the seat face of the valve seat body is formed into a tapered surface shape having a center angle ? satisfying 120°<?<160°.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: September 20, 2011
    Assignees: Eagle Industry Co., Ltd., Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Satoshi Umemura, Masaki Ota, Masahiro Kawaguchi, Ryosuke Cho, Keigo Shirafuji, Toshiaki Iwa
  • Publication number: 20100301530
    Abstract: A fluid-filled type active vibration damping device including a vibration damping device main unit, an oscillation member, and an actuator. The actuator is constituted by an electromagnetic actuator having a stator that includes a coil fixed to a second mounting member while having a movable member linearly displaceable relative to the stator when the coil is energized. A shaft member is provided for connecting the movable member and the oscillation member with each other. A connecting portion is provided for attaching the shaft member to the movable member while permitting the shaft member to tilt as well as to undergo displacement in an axis-perpendicular direction with respect to the movable member. A displacement preventing portion is provided for fastening the movable member and the shaft member to each other by preventing tilt as well as displacement in the axis-perpendicular direction due to the connecting portion.
    Type: Application
    Filed: May 25, 2010
    Publication date: December 2, 2010
    Applicants: TOKAI RUBBER INDUSTRIES, LTD., KEIHIN CORPORATION
    Inventors: Hironori Koyama, Koichi Hasegawa, Atsushi Muramatsu, Mutsumi Muraoka, Satoshi Umemura, Atsushi Urayama, Hirozumi Kon
  • Patent number: 7806666
    Abstract: A displacement control valve (32) is connected to a variable displacement compressor. An open passage (53) in which a refrigerant gas flows is formed within a rod (31) and a valve body (30) of the displacement control valve (32). Further, an inner circumferential surface of a valve chamber (36) is formed as a guide portion (40) for moving the valve body (30) along an axis (L1) of the valve chamber (36). A valve portion (30a) of the valve body (30) is formed in a circular arc cross sectional shape along a surface of a sphere (K) in which an intermediate point of a length of the guide portion (40) along the axis (L1) of the valve chamber (36) is set to a center (N) on the axis (L1), and a distance from the center (N) to a contact point between a valve seat (36a) and the valve portion (30a) is set to a radius (r).
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: October 5, 2010
    Assignee: Eagle Industry Co. Ltd.
    Inventors: Satoshi Umemura, Yuji Hashimoto, Tatsuya Hirose, Kazutaka Oda, Masataka Taniue, Ryosuke Cho, Keigo Shirafuji, Toshiaki Iwa
  • Publication number: 20100229249
    Abstract: Provided in the present invention is a genetic marker including a SNP which can be used for assessing the risk of developing hypertension, a polynucleotide for assessing the risk of developing hypertension which can be used as a primer or probe for detecting the genetic marker, a method for assessing the risk of developing hypertension using the SNP, a microarray for assessing the risk of developing hypertension which is used for genotyping of the SNP, a kit used in the method for assessing the risk of developing hypertension, and the like.
    Type: Application
    Filed: February 20, 2009
    Publication date: September 9, 2010
    Applicants: NAT'L UNIVERSITY CORPORATION EHIME UNIVERSITY, SHIGA UNIVERSITY OF MEDICAL SCIENCE, PUBLIC UNIVERSITY CORPORATION YOKOHAMA CITY UNIVERSITY
    Inventors: Tetsuro Miki, Yasuharu Tabara, Katsuhiko Kohara, Jun Nakura, Satoshi Umemura, Nobuhito Hirawa, Hirotsugu Ueshima, Yoshikuni Kita, Yasuyuki Nakamura
  • Publication number: 20100158710
    Abstract: A compressor includes a housing, a fixed scroll, a movable scroll and a control valve. The housing has a suction chamber, a discharge chamber and a backpressure chamber formed therein. The scrolls are pressed against each other by backpressure in the backpressure chamber. The control valve for controlling the backpressure has first, second and third chambers arranged in this order. The first, second and third chambers are connected to the discharge chamber, the backpressure chamber and the suction chamber, respectively. The control valve has a valve member. The valve member has a first pressure-receiving surface located in the first chamber, a second pressure-receiving surface located in the second chamber and a third pressure-receiving surface located in the third chamber. The area of the third pressure-receiving surface is larger than the area of the first pressure-receiving surface and larger than the area of the second pressure-receiving surface.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Satoshi UMEMURA, Tatsuya Ito, Masahiro Kawaguchi, Ken Suitou
  • Publication number: 20100138943
    Abstract: A genetic marker including a SNP which can be used for assessing the risk of developing hypertension, a polynucleotide for assessing the risk of developing hypertension which can be used as a primer or probe for detecting the genetic marker, a method for assessing the risk of developing hypertension using the SNP, a microarray for assessing the risk of developing hypertension which is used for genotyping of the SNP, a kit used in the method for assessing the risk of developing hypertension, and the like.
    Type: Application
    Filed: November 18, 2009
    Publication date: June 3, 2010
    Applicants: NAT'L UNIVERSITY CORPORATION EHIME UNIVERSITY, SHIGA UNIVERSITY OF MEDICAL SCIENCE, Public University Corporation Yokohama City University
    Inventors: Tetsuro Miki, Yasuharu Tabara, Katsuhiko Kohara, Jun Nakura, Satoshi Umemura, Nobuhito Hirawa, Hirotsugu Ueshima, Yoshikuni Kita, Yasuyuki Nakamura
  • Patent number: 7559208
    Abstract: A displacement control mechanism for a variable displacement compressor includes a first valve hole, a first valve body, a pressure sensing means operable to sense pressures of first and second points in a discharge pressure region to adjust a position of the first valve body, and a pressure-difference-increasing means operable to increase pressure difference between the first and second points when the pressure of a suction pressure region falls below a predetermined standard pressure. The pressure sensing means displaces the first valve body to increase an opening degree of the first valve hole according to increase of the pressure difference when the first valve hole is part of a supply passage. The pressure sensing means displaces the first valve body to decrease the opening degree of the first valve hole according to the increase of the pressure difference when the first valve hole is part of a bleed passage.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: July 14, 2009
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Daimler AG
    Inventors: Masaki Ota, Satoshi Umemura, Masahiro Kawaguchi, Sokichi Hibino
  • Publication number: 20090142202
    Abstract: In a structure for mounting a filter in a compressor, a mounting member is connected to the filter. A receiving hole is formed in a housing of the compressor for receiving therein the mounting member. A first fitting portion is formed on an inner circumferential surface of a holding portion of the filter. A second fitting portion is formed on an outer circumferential surface of the mounting member for having fitting relation to the first fitting portion for an overlap distance in a radial direction of the receiving hole. When the mounting member is received in the receiving hole with the fitting relation, the filter is disposed in a fluid passage of the housing. A clearance having a dimension is formed between an outer circumferential surface of the holding portion and an inner circumferential surface of the receiving hole. Minimum value of the dimension is smaller than the overlap distance.
    Type: Application
    Filed: November 26, 2008
    Publication date: June 4, 2009
    Inventors: Yoshinori Inoue, Hiroyuki Nakaima, Yoichi Takashima, Kazuya Shinmyo, Atsuo Sakagami, Masaya Sakamoto, Satoshi Umemura, Naoki Koeda, Yuji Hashimoto, Hisaya Kondo
  • Publication number: 20090108221
    Abstract: A displacement control valve for a variable displacement compressor. The displacement control valve includes a drive force transmission body, a pressure sensitive chamber, an internal passage, and a valve body. The valve body includes an annular seal which is contactable with a valve seat surface facing toward the first valve body. The drive force transmission body includes a drive rod and a valve body structure having a shaft passage and forming the first valve body. The drive rod is fitted to the shaft passage and coupled to the valve body structure so as to form a gap passage between an outer surface of the drive rod and a wall surface of the shaft passage. The internal passage includes a recess arranged radially inward from the annular seal, the shaft passage, and the gap passage. The gap passage is in direct communication with the recess.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 30, 2009
    Inventors: Satoshi UMEMURA, Tatsuya Hirose, Yuji Hashimoto, Norio Uemura, Ryosuke Cho, Keigo Shirafuji
  • Patent number: 7523620
    Abstract: A displacing device is incorporated in a displacement control valve. The displacing device includes a first pressure chamber, a second pressure chamber, a second bellows, a transmission rod, and an urging spring. The second pressure chamber communicates with a suction chamber. The interior of the second pressure chamber is a suction pressure zone. When the pressure in the suction pressure zone is less than or equal to a predetermined reference pressure, the transmission rod moves an actuation rod (valve body) to open a valve hole. Therefore, a variable displacement compressor is prevented from operating with a large displacement when there is insufficient amount of refrigerant or when the speed of the compressor is high.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: April 28, 2009
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Satoshi Umemura, Masahiro Kawaguchi, Masaki Ota, Tatsuya Hirose, Yuji Hashimoto
  • Publication number: 20090102105
    Abstract: A fluid filled vibration damping device including: a fluid passage interconnecting a pressure receiving chamber partially defined by a rubber elastic body connecting a first and second mounting members, and an equilibrium chamber partially defined by a flexible film; a movable valve body provided for switching the fluid passage between a communicating state and a blocked state through reciprocating operation; an electric motor employed for actuating the movable valve body; an actuating force converter mechanism provided on an actuating force transmission path from the electric motor to the movable valve body. A rotational actuating force of the electric motor is transmitted as reciprocating actuating force to the movable valve body by the actuating force converter mechanism.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 23, 2009
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Koichi Hasegawa, Hironori Koyama, Satoshi Umemura