Patents by Inventor Osamu Sekiguchi
Osamu Sekiguchi 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: 11273941Abstract: The purpose of the present invention is to provide a heat-shrinking apparatus for shrink labels which is capable of uniformly heat shrinking a shrink label covering a portion or the entirety of an article, and which is capable of completing heat shrinking in a state in which water drops are not deposited on the article and the surface of the shrink label.Type: GrantFiled: June 26, 2015Date of Patent: March 15, 2022Assignees: KABUSHIKI KAISHA YAKULT HONSHA, TOHO SHOJI KABUSHIKI KAISHA, FUJI SEAL, INC.Inventors: Akira Uetsuki, Osamu Sekiguchi, Toshiyuki Harada
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Publication number: 20170129634Abstract: The purpose of the present invention is to provide a heat-shrinking apparatus for shrink labels which is capable of uniformly heat shrinking a shrink label covering a portion or the entirety of an article, and which is capable of completing heat shrinking in a state in which water drops are not deposited on the article and the surface of the shrink label.Type: ApplicationFiled: June 26, 2015Publication date: May 11, 2017Applicants: KABUSHIKI KAISHA YAKULT HONSHA, TOHO SHOJI KABUSHIKI KAISHA, FUJI SEAL, INC.Inventors: Akira UETSUKI, Osamu SEKIGUCHI, Toshiyuki HARADA
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Patent number: 9473007Abstract: A rotary solenoid includes a swing yoke to which two magnets are fixed and a fixed yoke including projection portions at opposite sides thereof. An electromagnetic coil including a major magnetic pole is arranged at a center of the fixed yoke. The rotary solenoid is arranged to define a magnetic circuit extending through one of the magnets, the major magnetic pole, the fixed yoke, the projection portion, and the other magnet at a shortest distance.Type: GrantFiled: February 14, 2012Date of Patent: October 18, 2016Assignee: NIDEC SERVO CORPORATIONInventors: Takeshi Kirihara, Takaya Kato, Osamu Sekiguchi, Norihisa Imaizumi, Shoji Oiwa
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Patent number: 9248945Abstract: A mouthpiece structure for a pressure vessel includes a liner made of a synthetic resin, and constituting a vessel body and a cylindrical part communicating between an interior and an exterior of the vessel body, a cylindrical mouthpiece mounted closely to an inner periphery of the cylindrical part, a retainer having a covering portion which covers regions of outer surfaces of the cylindrical part and the mouthpiece respectively and a peripheral wall surrounding the cylindrical part, the cylindrical part and the mouthpiece having an interface between an inner periphery of the cylindrical part and an outer periphery of the mouthpiece, the interface having a distal end facing the regions, a first sealing member disposed between the mouthpiece and the covering portion, and a second sealing member disposed between the cylindrical part and the peripheral wall of the retainer.Type: GrantFiled: January 8, 2015Date of Patent: February 2, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventors: Ryuta Aoe, Osamu Sekiguchi, Katsuya Manabe, Yoshinori Miyazaki, Masayoshi Takami, Masayoshi Taki, Ken Hatta
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Publication number: 20150197382Abstract: A mouthpiece structure for a pressure vessel includes a liner made of a synthetic resin, and constituting a vessel body and a cylindrical part communicating between an interior and an exterior of the vessel body, a cylindrical mouthpiece mounted closely to an inner periphery of the cylindrical part, a retainer having a covering portion which covers regions of outer surfaces of the cylindrical part and the mouthpiece respectively and a peripheral wall surrounding the cylindrical part, the cylindrical part and the mouthpiece having an interface between an inner periphery of the cylindrical part and an outer periphery of the mouthpiece, the interface having a distal end facing the regions, a first sealing member disposed between the mouthpiece and the covering portion, and a second sealing member disposed between the cylindrical part and the peripheral wall of the retainer.Type: ApplicationFiled: January 8, 2015Publication date: July 16, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryuta AOE, Osamu SEKIGUCHI, Katsuya MANABE, Yoshinori MIYAZAKI, Masayoshi TAKAMI, Masayoshi TAKI, Ken Hatta
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Patent number: 8753086Abstract: An impeller includes a substantially cylindrical cup portion arranged to rotate about a center axis, a plurality of blades fixed to an outer circumferential surface of the cup portion for unitary rotation with the cup portion to draw air from one axial side and discharge the air to the other axial side, and an annular connector portion arranged to interconnect the blades. The connector portion has a substantially cylindrical shape in a position spaced apart about 70% to about 90% of the radial length of the blades from the base of each of the blades on the outer circumferential surface of the cup portion, and the ratio of a total axial height of the connector portion to a total radial gap between the outer circumferential surface of the cup portion and the inner circumferential surface of the connector portion is equal to or smaller than about 0.9.Type: GrantFiled: February 14, 2011Date of Patent: June 17, 2014Assignee: Nidec Servo CorporationInventors: Asahi Higo, Seung-Sin Yoo, Osamu Sekiguchi, Taro Tanno
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Publication number: 20130249326Abstract: A magnetic circuit suitable for a self-held type rotary solenoid while maintaining properties, reducing cost, e.g., a material cost, and making the rotary solenoid smaller in size is provided. The rotary solenoid includes a swing yoke to which two magnets are fixed and a fixed yoke including projection portions at opposite sides thereof. An electromagnetic coil including a major magnetic pole is arranged at a center of the fixed yoke. The rotary solenoid is arranged to define a magnetic circuit extending through one of the magnets, the major magnetic pole, the fixed yoke, the projection portion, and the other magnet at a shortest distance. Therefore, even if a magnet made of a material having a low grade is used, it is possible to maintain sufficient magnetic properties.Type: ApplicationFiled: February 14, 2012Publication date: September 26, 2013Applicant: NIDEC SERVO CORPORATIONInventors: Takeshi Kirihara, Takaya Kato, Osamu Sekiguchi, Norihisa Imaizumi, Shoji Oiwa
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Publication number: 20130062985Abstract: A brushless DC motor including a rotor capable of minimizing demagnetization of a magnet even when a short-circuit brake operation is performed by short-circuiting motor coils includes two kinds magnets differing in coercive force from each other which are alternately arranged into an annular shape along a circumferential direction. A magnet having a high coercive force is arranged in the portion where a diamagnetic flux is strongly generated. The portion where a diamagnetic flux is generated is the salient pole portion of a stator. A counter electromotive force becomes greatest when the center of the salient pole portion of the stator comes closer to the border of an N-pole and an S-pole of the magnet. Since the diamagnetic flux has a maximum value in that position, the magnet having a high coercive force is arranged near the border of an N-pole and an S-pole.Type: ApplicationFiled: August 21, 2012Publication date: March 14, 2013Applicant: NIDEC SERVO CORPORATIONInventors: Motoi JIN, Takaya KATO, Osamu SEKIGUCHI, Shoji OIWA
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Patent number: 8317478Abstract: An impeller, a fan apparatus, and a method of manufacturing the impeller are provided. The impeller includes a support portion, a plurality of rotor blades, and a joining member. The joining member is a substantially annular member provided to strengthen the rotor blades against influence of a centrifugal force, and extends in a circumferential direction along a circle centered on a central axis so as to join the rotor blades to one another. In each of the rotor blades, a point of intersection of a leading edge of the rotor blade with a radially outer end of the rotor blade is positioned forward, with respect to a rotation direction, relative to a point of intersection of the leading edge with an outside surface of the support portion. The joining member is positioned radially inwards of the radially outer end of each of the rotor blades.Type: GrantFiled: September 30, 2009Date of Patent: November 27, 2012Assignee: Nidec Servo CorporationInventors: Asahi Higo, Tetsuya Hioki, Taro Tanno, Mitsuru Ito, Osamu Sekiguchi, Seung-Sin Yoo
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Publication number: 20120045323Abstract: A centrifugal fan includes an impeller including a main plate rotating about a center axis and a plurality of vanes fixed to the main plate in a circumferentially spaced-apart relationship, and a bell mouth arranged at an air intake side of the impeller to define an air inlet including a portion whose inner diameter is decreased toward the impeller. Each of the vanes preferably includes a protrusion protruding toward the bell mouth and extending into the air inlet.Type: ApplicationFiled: August 12, 2011Publication date: February 23, 2012Applicant: NIDEC SERVO CORPORATIONInventors: Yoshihisa KAGAWA, Osamu SEKIGUCHI
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Publication number: 20110200429Abstract: An impeller includes a substantially cylindrical cup portion arranged to rotate about a center axis, a plurality of blades fixed to an outer circumferential surface of the cup portion for unitary rotation with the cup portion to draw air from one axial side and discharge the air to the other axial side, and an annular connector portion arranged to interconnect the blades. The connector portion has a substantially cylindrical shape in a position spaced apart about 70% to about 90% of the radial length of the blades from the base of each of the blades on the outer circumferential surface of the cup portion, and the ratio of a total axial height of the connector portion to a total radial gap between the outer circumferential surface of the cup portion and the inner circumferential surface of the connector portion is equal to or smaller than about 0.9.Type: ApplicationFiled: February 14, 2011Publication date: August 18, 2011Applicant: NIDEC SERVO CORPORATIONInventors: Asahi HIGO, Seung-Sin YOO, Osamu SEKIGUCHI, Taro TANNO
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Patent number: 7946824Abstract: In an axial flow fan, a line extending from a center axis and passing a corner where a following edge and a radially outer edge of a blade of an impeller meet is arranged forwardly in a rotational direction from an another corner where a leading edge of the blade and a radially outer surface of a hub meet. Furthermore, a camber ratio of the blade, which is minimum at a joint with the hub across the blade, monotonically increases to be maximum at the radially outer edge of the blade.Type: GrantFiled: October 31, 2007Date of Patent: May 24, 2011Assignee: Nidec Servo Co., Ltd.Inventors: Taku Iwase, Masanori Watabe, Osamu Sekiguchi, Tetsuya Hioki, Taro Tanno, Motoi Jin, Yoshihiko Kato
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Patent number: 7737589Abstract: A motor includes a rotor portion including a shaft and a rotor magnet rotatable about a center axis, an armature arranged opposite to the rotor magnet to generate a torque therebetween, a circuit board arranged below the armature in an axial direction substantially parallel to the center axis and including a control circuit controlling rotation of the rotor portion, and a base portion including a bearing holder which supports the armature on its outer side surface and the shaft on its inner side surface via a bearing member. The armature is pressed against the bearing holder in the axial direction with an elastic member.Type: GrantFiled: March 3, 2008Date of Patent: June 15, 2010Assignee: Nidec Servo CorporationInventors: Osamu Sekiguchi, Taro Tanno, Yoshihiko Kato, Tetsuya Hioki, Asahi Higo
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Publication number: 20100086405Abstract: An impeller, a fan apparatus, and a method of manufacturing the impeller are provided. The impeller includes a support portion, a plurality of rotor blades, and a joining member. The joining member is a substantially annular member provided to strengthen the rotor blades against influence of a centrifugal force, and extends in a circumferential direction along a circle centered on a central axis so as to join the rotor blades to one another. In each of the rotor blades, a point of intersection of a leading edge of the rotor blade with a radially outer end of the rotor blade is positioned forward, with respect to a rotation direction, relative to a point of intersection of the leading edge with an outside surface of the support portion. The joining member is positioned radially inwards of the radially outer end of each of the rotor blades.Type: ApplicationFiled: September 30, 2009Publication date: April 8, 2010Applicant: Nidec Servo CorporationInventors: Asahi HIGO, Tetsuya HIOKI, Taro TANNO, Mitsuru ITO, Osamu SEKIGUCHI, Seung-Sin YOO
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Patent number: 7622838Abstract: An axial fan motor comprising: a fan having a rotating shaft and composed of a hub and a plurality of vanes provided around the hub, the fan rotating to generate an air flow; a stator substrate set comprising a stator core, which drives the fan, an insulator, and a substrate; and a venturi having a sleeve, into an inner peripheral side of which a bearing is inserted to support the rotating shaft and to an outer peripheral side of which the stator core is fixed, the venturi being formed on one side thereof with an air suction opening and on the other side thereof with an air discharge mouth, wherein a space is provided between the stator core and the sleeve.Type: GrantFiled: April 9, 2007Date of Patent: November 24, 2009Assignee: Japan Servo Co., Ltd.Inventors: Masanori Watanabe, Taku Iwase, Osamu Sekiguchi, Taro Tanno, Yoshihiko Kato, Tetsuya Hioki
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Patent number: 7470108Abstract: In an axial flow fan, for reducing fluid noise and further reducing the noise by suppressing solid-conveyed noise (structure-borne noise) generated by the vibration of an electric motor or the like, the axial flow fan is equipped with a propeller, a motor for driving the propeller, and a venturi portion disposed on the outer circumference side of the propeller and provided on its inner circumferential side with a bellmouth through which an air flow generated by the revolution of the propeller passes, wherein the bellmouth has an intake portion whose diameter contracts in a curved shape in the direction of the air flow, a cylindrical portion having a cylindrical shape, and a discharge portion whose diameter slantingly expands in the direction of the air flow.Type: GrantFiled: April 20, 2005Date of Patent: December 30, 2008Assignee: Japan Servo Co., Ltd.Inventors: Masanori Watanabe, Taku Iwase, Shouichi Kawamata, Osamu Sekiguchi, Taro Tanno
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Publication number: 20080157634Abstract: A motor includes a rotor portion including a shaft and a rotor magnet rotatable about a center axis, an armature arranged opposite to the rotor magnet to generate a torque therebetween, a circuit board arranged below the armature in an axial direction substantially parallel to the center axis and including a control circuit controlling rotation of the rotor portion, and a base portion including a bearing holder which supports the armature on its outer side surface and the shaft on its inner side surface via a bearing member. The armature is pressed against the bearing holder in the axial direction with an elastic member.Type: ApplicationFiled: March 3, 2008Publication date: July 3, 2008Applicant: JAPAN SERVO CO., LTD.Inventors: Osamu SEKIGUCHI, Taro TANNO, Yoshihiko KATO, Tetsuya HIOKI, Asahi HIGO
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Publication number: 20080101964Abstract: In an axial flow fan, a line extending from a center axis and passing a corner where a following edge and a radially outer edge of a blade of an impeller meet is arranged forwardly in a rotational direction from an another corner where a leading edge of the blade and a radially outer surface of a hub meet. Furthermore, a camber ratio of the blade, which is minimum at a joint with the hub across the blade, monotonically increases to be maximum at the radially outer edge of the blade.Type: ApplicationFiled: October 31, 2007Publication date: May 1, 2008Applicant: JAPAN SERVO CO., LTD.Inventors: Taku IWASE, Masanori WATABE, Osamu SEKIGUCHI, Tetsuya HIOKI, Taro TANNO, Motoi JIN, Yoshihiko KATO
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Patent number: D570471Type: GrantFiled: February 20, 2007Date of Patent: June 3, 2008Assignee: Japan Servo Co., Ltd.Inventors: Taku Iwase, Masanori Watanabe, Tetsuya Hioki, Osamu Sekiguchi, Taro Tanno, Yoshihiko Katou
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Patent number: D714737Type: GrantFiled: May 29, 2012Date of Patent: October 7, 2014Assignee: Nidec Servo CorporationInventors: Norihisa Imaizumi, Takeshi Kirihara, Osamu Sekiguchi, Takaya Kato, Shoji Oiwa