Patents by Inventor Tetsuya Hioki
Tetsuya Hioki 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: 10465700Abstract: A blowing device includes an axil fan having a plurality of blades and causing an air to flow through the blowing device, and a fan shroud rotatably supporting the fan. The fan shroud includes a ring portion surrounding a circumference of the fan, and an air guide portion connecting an outer rim of the fan shroud and an inner rim of the ring portion. The fan shroud includes a specific rim portion that is a part of the outer rim of the fan shroud, a distance from the specific rim portion to the inner rim of the ring portion being shorter than other parts of the outer rim. The fan shroud includes a counter flow introduction passage provided in the air guide portion and extending from a position located inward of the specific rim portion. The blowing device is capable of limiting a rotation noise of the fan.Type: GrantFiled: December 24, 2015Date of Patent: November 5, 2019Assignee: DENSO CORPORATIONInventor: Tetsuya Hioki
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Publication number: 20170350412Abstract: A blowing device includes an axil fan having a plurality of blades and causing an air to flow through the blowing device, and a fan shroud rotatably supporting the fan. The fan shroud includes a ring portion surrounding a circumference of the fan, and an air guide portion connecting an outer rim of the fan shroud and an inner rim of the ring portion. The fan shroud includes a specific rim portion that is a part of the outer rim of the fan shroud, a distance from the specific rim portion to the inner rim of the ring portion being shorter than other parts of the outer rim. The fan shroud includes a counter flow introduction passage provided in the air guide portion and extending from a position located inward of the specific rim portion. The blowing device is capable of limiting a rotation noise of the fan.Type: ApplicationFiled: December 24, 2015Publication date: December 7, 2017Inventor: Tetsuya HIOKI
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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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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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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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Publication number: 20070241643Abstract: 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: ApplicationFiled: April 9, 2007Publication date: October 18, 2007Inventors: Masanori Watanabe, Taku Iwase, Osamu Sekiguchi, Taro Tanno, Yoshihiko Kato, Tetsuya Hioki
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Patent number: D564653Type: GrantFiled: February 20, 2007Date of Patent: March 18, 2008Assignee: Japan Servo Co., Ltd.Inventors: Taku Iwase, Masanori Watanabe, Tetsuya Hioki, Osamu Sekiguchi, Taro Tanno, Yoshihiko Katou
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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