Patents by Inventor Ryohei Kageyama
Ryohei Kageyama 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: 10186937Abstract: A commutator includes a cylindrical insulator and commutator pieces, which are formed on the outer circumferential surface of the insulator and arranged side by side in the circumferential direction of the insulator. The commutator pieces are each composed of a conductive plate material, and each includes a connection claw and an engagement claw. The connection claw extends outward in the radial direction of the insulator while being configured to electrically being connected to an armature coil. The engagement claw extends inward in the radial direction of the insulator and engages with the insulator. The commutator pieces each include a recess portion with an undercut formed in a surface facing inward in the radial direction of the insulator.Type: GrantFiled: January 8, 2018Date of Patent: January 22, 2019Assignee: DENSO CORPORATIONInventors: Toshiyuki Osawa, Kouji Hyoudou, Ryohei Kageyama
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Publication number: 20180131257Abstract: A commutator includes a cylindrical insulator and commutator pieces, which are formed on the outer circumferential surface of the insulator and arranged side by side in the circumferential direction of the insulator. The commutator pieces are each composed of a conductive plate material, and each includes a connection claw and an engagement claw. The connection claw extends outward in the radial direction of the insulator while being configured to electrically being connected to an armature coil. The engagement claw extends inward in the radial direction of the insulator and engages with the insulator. The commutator pieces each include a recess portion with an undercut formed in a surface facing inward in the radial direction of the insulator.Type: ApplicationFiled: January 8, 2018Publication date: May 10, 2018Inventors: Toshiyuki OSAWA, Kouji HYOUDOU, Ryohei KAGEYAMA
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Publication number: 20140084745Abstract: A commutator includes a cylindrical insulator and commutator pieces, which are formed on the outer circumferential surface of the insulator and arranged side by side in the circumferential direction of the insulator. The commutator pieces are each composed of a conductive plate material, and each includes a connection claw and an engagement claw. The connection claw extends outward in the radial direction of the insulator while being configured to electrically being connected to an armature coil. The engagement claw extends inward in the radial direction of the insulator and engages with the insulator. The commutator pieces each include a recess portion with an undercut formed in a surface facing inward in the radial direction of the insulator.Type: ApplicationFiled: September 17, 2013Publication date: March 27, 2014Applicant: Asmo Co., Ltd.Inventors: Toshiyuki OSAWA, Kouji HYOUDOU, Ryohei KAGEYAMA
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Patent number: 8220146Abstract: A short-circuiting member for preventing a commutator from being elongated in the axial direction without increasing the types of different components. Each component includes outer circumference terminals arranged along an outer circumference, inner circumference terminals arranged along an inner circumference, and connection portions connecting corresponding outer and inner circumference terminals that are separated from each other by a predetermined angle in a circumferential direction. The outer and inner circumference terminals are substantially formed along the same plane. The components are laminated in a state in which the connection portions of one of the components are reversed to the connection portions of another one of the components.Type: GrantFiled: July 21, 2009Date of Patent: July 17, 2012Assignee: ASMO Co., Ltd.Inventors: Yuuichi Terada, Toshihiro Tanino, Toshio Yamamoto, Yasuhide Itou, Yoshiki Nakano, Ryohei Kageyama
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Patent number: 7877857Abstract: Coils are electrically connected to a commutator, which includes commutator segments that are arranged one after another in a circumferential direction of a dielectric body along an outer peripheral surface of the dielectric body. Each commutator segment includes a slidably contacting portion, a claw portion and a bending fulcrum portion. The slidably contacting portion is provided in one axial side of the commutator segment and is slidably contactable with each brush. The claw portion is provided in the other axial side of the commutator segment and is engageable with the corresponding coil. The bending fulcrum portion is formed on a claw portion side of the slidably contacting portion and is bent upon radially inwardly pressing the claw portion by a fusing electrode.Type: GrantFiled: August 30, 2007Date of Patent: February 1, 2011Assignee: ASMO Co., Ltd.Inventors: Toshiyuki Osawa, Ryohei Kageyama, Nobuo Kasao, Kengo Ozawa
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Patent number: 7856703Abstract: A short-circuit member includes a short-circuit conductor and a short-circuit insulator. The short-circuit conductor includes superimposed first and second short-circuit member formation groups. Each of the short-circuit member formation groups has outer terminals, inner terminals, and linking portions. The outer terminals contact one another and the inner terminals contact one another between each of the short-circuit member formation groups. The linking portions are maintained in non-contact between each of the short-circuit member formation groups.Type: GrantFiled: July 19, 2006Date of Patent: December 28, 2010Assignee: Asmo Co., Ltd.Inventors: Ryohei Kageyama, Nobuo Kasao, Toshiyuki Osawa, Yuichi Terada
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Patent number: 7642687Abstract: The number of conductor members in a first conductor member group and the number of conductor members in a second conductor member group are equal to each other and are odd numbers. An inner terminal of each conductor member is displaced from an outer terminal of the same conductor member by 90 degrees with respect to the circumferential direction of the corresponding conductor member group. Each outer terminal of the first conductor member group is displaced from a corresponding one of the outer terminals of the second conductor member with respect to the circumferential direction of the first conductor member group.Type: GrantFiled: May 9, 2008Date of Patent: January 5, 2010Assignee: Asmo Co., Ltd.Inventors: Ryohei Kageyama, Toshio Yamamoto
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Patent number: 7626307Abstract: The number of conductor members in a first conductor member group and the number of conductor members in a second conductor member group are equal to each other. An inner terminal of each conductor member is displaced from an outer terminal of the same conductor member with respect to the circumferential direction of the corresponding conductor member group. Each outer terminal of the first conductor member group is displaced from a corresponding one of the outer terminals of the second conductor member with respect to the circumferential direction of the first conductor member group.Type: GrantFiled: May 9, 2008Date of Patent: December 1, 2009Assignee: Asmo Co., Ltd.Inventors: Ryohei Kageyama, Toshio Yamamoto
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Publication number: 20090276998Abstract: A short-circuiting member for preventing a commutator from being elongated in the axial direction without increasing the types of different components. Each component includes outer circumference terminals arranged along an outer circumference, inner circumference terminals arranged along an inner circumference, and connection portions connecting corresponding outer and inner circumference terminals that are separated from each other by a predetermined angle in a circumferential direction. The outer and inner circumference terminals are substantially formed along the same plane. The components are laminated in a state in which the connection portions of one of the components are reversed to the connection portions of another one of the components.Type: ApplicationFiled: July 21, 2009Publication date: November 12, 2009Inventors: Yuuichi Terada, Toshihiro Tanino, Toshio Yamamoto, Yasuhide Itou, Yoshiki Nakano, Ryohei Kageyama
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Patent number: 7583004Abstract: A short-circuiting member for preventing a commutator from being elongated in the axial direction without increasing the types of different components. The short-circuiting member includes components, each having outer and inner circumferences. Each component includes outer circumference terminals arranged along the outer circumference, inner circumference terminals arranged along the inner circumference, and connection portions connecting a corresponding one of the outer circumference terminals and a corresponding one of the inner circumference terminals that are separated from each other by a predetermined angle in a circumferential direction. The outer and inner circumference terminals are substantially formed along the same plane. The components are laminated in a state in which the connection portions of one of the components are reversed to the connection portions of another one of the components.Type: GrantFiled: October 5, 2004Date of Patent: September 1, 2009Assignee: ASMO Co., Ltd.Inventors: Yuuichi Terada, Toshihiro Tanino, Toshio Yamamoto, Yasuhide Itou, Yoshiki Nakano, Ryohei Kageyama
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Patent number: 7569969Abstract: An insulator is mounted in an armature core. Coils are wound around teeth of the armature core by way of concentrated winding. A power feeding member, which supplies a current to the coils, includes a connecting portion. A separating portion, which is provided in the insulator, is located in the teeth. The separating portion separates each of the coils to a first portion and a second portion. The connecting portion is electrically connected to the first portion. Accordingly, while preventing damage to the coils, the coils are easily connected to the power feeding member.Type: GrantFiled: August 2, 2006Date of Patent: August 4, 2009Assignee: ASMO Co., Ltd.Inventors: Yoshiki Nakano, Akihiko Seki, Yoshitaka Tao, Ryohei Kageyama, Kazushi Sugishima, Yasuhide Ito, Masayuki Kuwano, Toshio Yamamoto, Kazuyuki Izumi
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Publication number: 20080293310Abstract: The number of conductor members in a first conductor member group and the number of conductor members in a second conductor member group are equal to each other and are odd numbers. An inner terminal of each conductor member is displaced from an outer terminal of the same conductor member by 90 degrees with respect to the circumferential direction of the corresponding conductor member group. Each outer terminal of the first conductor member group is displaced from a corresponding one of the outer terminals of the second conductor member with respect to the circumferential direction of the first conductor member group.Type: ApplicationFiled: May 9, 2008Publication date: November 27, 2008Applicant: ASMO Co., Ltd.Inventors: Ryohei Kageyama, Toshio Yamamoto
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Publication number: 20080280469Abstract: The number of conductor members in a first conductor member group and the number of conductor members in a second conductor member group are equal to each other. An inner terminal of each conductor member is displaced from an outer terminal of the same conductor member with respect to the circumferential direction of the corresponding conductor member group. Each outer terminal of the first conductor member group is displaced from a corresponding one of the outer terminals of the second conductor member with respect to the circumferential direction of the first conductor member group.Type: ApplicationFiled: May 9, 2008Publication date: November 13, 2008Applicant: ASMO Co., Ltd.Inventors: Ryohei Kageyama, Toshio Yamamoto
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Patent number: 7414344Abstract: A commutator main body 11 includes a plurality of commutator pieces 13 arranged along a circumference, the center of which is a rotation axis L of a motor, and a main body insulator 14 holding the commutator pieces. A short-circuit member 12 is arranged on an end portion of the commutator main body 11 and includes a short-circuit conductor 21, which short-circuits predetermined ones of the commutator pieces, and a short-circuit insulator 22, in which the short-circuit member is embedded. A boss is formed integrally with the short-circuit insulator so as to project from the end portion of the commutator main body.Type: GrantFiled: July 19, 2006Date of Patent: August 19, 2008Assignee: ASMO Co., LtdInventors: Ryohei Kageyama, Nobuo Kasao, Toshiyuki Osawa, Yuichi Terada, Toshihiro Tanino, Yoshiki Nakano
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Patent number: 7414345Abstract: A commutator including a commutator main body having a plurality of commutator pieces and a short-circuit member having a short-circuit conductor for short-circuiting commutator pieces. The short-circuit conductor includes superimposed first and second short-circuit member formation groups. The first short-circuit member formation group is thinner than the second short-circuit member formation group. The first and second short-circuit member formation groups are fixed to each other by crimping projections, which are formed on the second short-circuit member formation group through punching, in a state inserted through holes, which are formed in the second short-circuit member formation group.Type: GrantFiled: July 19, 2006Date of Patent: August 19, 2008Assignee: Asmo Co., Ltd.Inventors: Ryohei Kageyama, Nobuo Kasao, Toshiyuki Osawa
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Publication number: 20080066293Abstract: Coils are electrically connected to a commutator, which includes commutator segments that are arranged one after another in a circumferential direction of a dielectric body along an outer peripheral surface of the dielectric body. Each commutator segment includes a slidably contacting portion, a claw portion and a bending fulcrum portion. The slidably contacting portion is provided in one axial side of the commutator segment and is slidably contactable with each brush. The claw portion is provided in the other axial side of the commutator segment and is engageable with the corresponding coil. The bending fulcrum portion is formed on a claw portion side of the slidably contacting portion and is bent upon radially inwardly pressing the claw portion by a fusing electrode.Type: ApplicationFiled: August 30, 2007Publication date: March 20, 2008Applicant: ASMO CO., LTD.Inventors: Toshiyuki Osawa, Ryohei Kageyama, Nobuo Kasao, Kengo Ozawa
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Publication number: 20070257572Abstract: An insulator is mounted in an armature core. Coils are wound around teeth of the armature core by way of concentrated winding. A power feeding member, which supplies a current to the coils, includes a connecting portion. A separating portion, which is provided in the insulator, is located in the teeth. The separating portion separates each of the coils to a first portion and a second portion. The connecting portion is electrically connected to the first portion. Accordingly, while preventing damage to the coils, the coils are easily connected to the power feeding member.Type: ApplicationFiled: August 2, 2006Publication date: November 8, 2007Inventors: Yoshiki Nakano, Akihiko Seki, Yoshitaka Tao, Ryohei Kageyama, Kazushi Sugishima, Yasuhide Ito, Masayuki Kuwano, Toshio Yamamoto, Kazuyuki Izumi
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Publication number: 20070096582Abstract: A commutator including a commutator main body having a plurality of commutator pieces and a short-circuit member having a short-circuit conductor for short-circuiting commutator pieces. The short-circuit conductor includes superimposed first and second short-circuit member formation groups. The first short-circuit member formation group is thinner than the second short-circuit member formation group. The first and second short-circuit member formation groups are fixed to each other by crimping projections, which are formed on the second short-circuit member formation group through punching, in a state inserted through holes, which are formed in the second short-circuit member formation group.Type: ApplicationFiled: July 19, 2006Publication date: May 3, 2007Inventors: Ryohei Kageyama, Nobuo Kasao, Toshiyuki Osawa
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Publication number: 20070069603Abstract: A short-circuiting member for preventing a commutator from being elongated in the axial direction without increasing the types of different components. The short-circuiting member includes components, each having outer and inner circumferences. Each component includes outer circumference terminals arranged along the outer circumference, inner circumference terminals arranged along the inner circumference, and connection portions connecting a corresponding one of the outer circumference terminals and a corresponding one of the inner circumference terminals that are separated from each other by a predetermined angle in a circumferential direction. The outer and inner circumference terminals are substantially formed along the same plane. The components are laminated in a state in which the connection portions of one of the components are reversed to the connection portions of another one of the components.Type: ApplicationFiled: October 5, 2004Publication date: March 29, 2007Applicant: ASMO CO., LTD.Inventors: Yuuichi Terada, Toshihiro Tanino, Toshio Yamamoto, Yasuhide Itou, Yoshiki Nakano, Ryohei Kageyama
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Publication number: 20070046134Abstract: A commutator includes a commutator body having segments and a short circuit member for short-circuiting the segments. The short circuit member includes first short circuit pieces and second short circuit pieces that are stacked. A radially outer end portion of each first short circuit piece is overlapped with and connected to a radially outer end portion of one of the second short circuit pieces. The short circuit member is arranged at an axial end of the commutator body such that each pair of the overlapped radially outer end portions corresponds to one of the segments. The radially outer end portions and the segments each have a connecting projection. The connecting projections of each pair of the overlapped radially outer end portions and the connecting projection of the corresponding segment are arranged to form an adjacently arranged set of the connecting projections, which are bonded by welding.Type: ApplicationFiled: August 22, 2006Publication date: March 1, 2007Inventors: Yoshiki Nakano, Yoshitaka Tao, Ryohei Kageyama