Patents by Inventor Toyoshi Yoshida
Toyoshi Yoshida 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: 11897581Abstract: A bicycle sprocket comprises at least one chain engaging member constituting at least a part of at least one sprocket tooth of the bicycle sprocket. The at least one chain engaging member is configured to contact a bicycle chain in a state where the bicycle chain engages with the bicycle sprocket. The at least one chain engaging member is made of a first material. At least one bicycle attachment member constitutes at least a part of a sprocket body of the bicycle sprocket. The at least one bicycle attachment member is configured to be coupled to a bicycle. The at least one bicycle attachment member is made of a second material that is different from the first material. At least one shifting facilitation area is provided in the at least one chain engaging member to facilitate a shifting operation of a bicycle chain.Type: GrantFiled: July 21, 2020Date of Patent: February 13, 2024Assignee: SHIMANO INC.Inventors: Tooru Iwai, Tetsu Nonoshita, Toyoshi Yoshida
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Patent number: 10875355Abstract: A bicycle component comprises a first structural member made of a conducting material, an electrical insulation layer provided to the first structural member, and a second structural member configured to be attached to the electrical insulation layer by adhesive.Type: GrantFiled: December 28, 2017Date of Patent: December 29, 2020Assignee: SHIMANO INC.Inventors: Toru Iwai, Tetsu Nonoshita, Toyoshi Yoshida
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Patent number: 10864964Abstract: A bicycle rear sprocket assembly 28 comprises a sprocket carrier 31, at least one metallic support 33, and at least one rear sprocket 28a-28h. The sprocket carrier 31 is made of a non-metallic material. The at least one metallic support 33 is attached to at least one of a first circumferentially facing surface 41 and a second circumferentially facing surface 43 of at least one mounting arm 39 of the sprocket carrier 31. The at least one rear sprocket 28a-28h is made of a metallic material. A sprocket body 51 of the at least one rear sprocket 28a-28h is attached to the at least one metallic support 33.Type: GrantFiled: August 31, 2018Date of Patent: December 15, 2020Inventors: Toru Iwai, Tetsu Nonoshita, Toyoshi Yoshida
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Publication number: 20200346713Abstract: A bicycle sprocket comprises at least one chain engaging member constituting at least a part of at least one sprocket tooth of the bicycle sprocket. The at least one chain engaging member is configured to contact a bicycle chain in a state where the bicycle chain engages with the bicycle sprocket. The at least one chain engaging member is made of a first material. At least one bicycle attachment member constitutes at least a part of a sprocket body of the bicycle sprocket. The at least one bicycle attachment member is configured to be coupled to a bicycle. The at least one bicycle attachment member is made of a second material that is different from the first material. At least one shifting facilitation area is provided in the at least one chain engaging member to facilitate a shifting operation of a bicycle chain.Type: ApplicationFiled: July 21, 2020Publication date: November 5, 2020Applicant: SHIMANO INC.Inventors: Tooru Iwai, Tetsu Nonoshita, Toyoshi Yoshida
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Patent number: 10774915Abstract: A bicycle sprocket assembly comprises a plurality of sprockets and a first support element. The plurality of sprockets is arranged coaxially about a rotational center axis of the bicycle sprocket assembly. The plurality of sprockets includes a first sprocket. The first sprocket includes a first toothed ring and a first sprocket body at least partly disposed radially inwardly of the first toothed ring with respect to the rotational center axis. The first toothed ring is made of a first material. The first sprocket body is made of a second material that is different from the first material. The first support element extends from the first sprocket to a second sprocket adjacent to the first sprocket in an axial direction with respect to the rotational center axis. The first support element is made of a first additional material that is different from the second material.Type: GrantFiled: May 30, 2017Date of Patent: September 15, 2020Assignee: SHIMANO INC.Inventors: Tooru Iwai, Tetsu Nonoshita, Toyoshi Yoshida
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Patent number: 10584786Abstract: A bicycle sprocket assembly comprises a sprocket support member and a reinforcement member. The sprocket support member is configured to support a sprocket. The sprocket support member includes a central cylindrical portion and at least one sprocket support portion extending radially outwardly from the central cylindrical portion with respect to a rotational center axis of the bicycle sprocket assembly. The sprocket support member is made of a non-metallic material. The reinforcement member is provided in the central cylindrical portion to reinforce the central cylindrical portion in a circumferential direction about the rotational center axis.Type: GrantFiled: March 29, 2017Date of Patent: March 10, 2020Assignee: SHIMANO INC.Inventors: Tooru Iwai, Tetsu Nonoshita, Toyoshi Yoshida
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Publication number: 20200070934Abstract: A bicycle rear sprocket assembly 28 comprises a sprocket carrier 31, at least one metallic support 33, and at least one rear sprocket 28a-28h. The sprocket carrier 31 is made of a non-metallic material. The at least one metallic support 33 is attached to at least one of a first circumferentially facing surface 41 and a second circumferentially facing surface 43 of at least one mounting arm 39 of the sprocket carrier 31. The at least one rear sprocket 28a-28h is made of a metallic material. A sprocket body 51 of the at least one rear sprocket 28a-28h is attached to the at least one metallic support 33.Type: ApplicationFiled: August 31, 2018Publication date: March 5, 2020Inventors: Toru IWAI, Tetsu NONOSHITA, Toyoshi YOSHIDA
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Patent number: 10538287Abstract: A bicycle crank arm is basically provided that includes a first structural member and a second structural member attached to the first structural member. The first structural member is made of a first material including a non-metallic material. The second structural member is made of a second material that is different from the first material.Type: GrantFiled: August 30, 2016Date of Patent: January 21, 2020Assignee: Shimano Inc.Inventors: Tooru Iwai, Tetsu Nonoshita, Toyoshi Yoshida
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Patent number: 10442496Abstract: A bicycle sprocket assembly comprises a sprocket support member. The sprocket support member comprises a central cylindrical portion and a plurality of sprocket support portions. The plurality of sprocket support portions extends radially outwardly from the central cylindrical portion with respect to a rotational center axis of the bicycle sprocket assembly. At least one sprocket support portion of the plurality of sprocket support portions comprises at least one radially extending surface, at least one axially extending surface, and an interior cavity. The at least one radially extending surface extends radially relative to the rotational center axis to support at least one of the at least one sprocket. The at least one axially extending surface extends in an axial direction parallel to the rotational center axis.Type: GrantFiled: March 29, 2017Date of Patent: October 15, 2019Assignee: SHIMANO INC.Inventors: Tooru Iwai, Tetsu Nonoshita, Toyoshi Yoshida
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Publication number: 20190202233Abstract: A bicycle component comprises a first structural member made of a conducting material, an electrical insulation layer provided to the first structural member, and a second structural member configured to be attached to the electrical insulation layer by adhesive.Type: ApplicationFiled: December 28, 2017Publication date: July 4, 2019Applicant: SHIMANO INC.Inventors: Toru IWAI, Tetsu NONOSHITA, Toyoshi YOSHIDA
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Patent number: 10315724Abstract: A composite bicycle component includes a first member made of a metallic material. The first member has a surface with a first dimple. The first dimple includes a second dimple that is formed on the first dimple. Preferably, the composite bicycle component further includes a second member attached to the first member so that a part of the second member extends into the first and second dimples.Type: GrantFiled: January 11, 2013Date of Patent: June 11, 2019Assignee: Shimano Inc.Inventors: Tetsu Nonoshita, Toyoshi Yoshida, Wataru Yamauchi
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Patent number: 10259262Abstract: A bicycle rim comprises a base member, a cover member, and a spoke attachment member. The base member includes a truss structure that defines at least one opening. The cover member at least partly covers the at least one opening of the base member. The spoke attachment member is a separate member from the base member and the cover member. The spoke attachment member is non-rotatably attached to the base member.Type: GrantFiled: January 20, 2017Date of Patent: April 16, 2019Assignee: SHIMANO INC.Inventors: Tooru Iwai, Tetsu Nonoshita, Toyoshi Yoshida
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Publication number: 20180346066Abstract: A bicycle sprocket assembly comprises a plurality of sprockets and a first support element. The plurality of sprockets is arranged coaxially about a rotational center axis of the bicycle sprocket assembly. The plurality of sprockets includes a first sprocket. The first sprocket includes a first toothed ring and a first sprocket body at least partly disposed radially inwardly of the first toothed ring with respect to the rotational center axis. The first toothed ring is made of a first material. The first sprocket body is made of a second material that is different from the first material. The first support element extends from the first sprocket to a second sprocket adjacent to the first sprocket in an axial direction with respect to the rotational center axis. The first support element is made of a first additional material that is different from the second material.Type: ApplicationFiled: May 30, 2017Publication date: December 6, 2018Applicant: SHIMANO INC.Inventors: Tooru IWAI, Tetsu NONOSHITA, Toyoshi YOSHIDA
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Publication number: 20180290712Abstract: A bicycle sprocket is provided that is configured to limit a chain separation. The bicycle sprocket includes a sprocket body and a plurality of teeth. The sprocket body has a rotational center axis. The plurality of teeth includes a first tooth having a first width extending in a rotational center axis direction, and a second tooth having a second width extending in the rotational center axis direction. The second width is smaller than the first width. The plurality of teeth includes a base body and a nickel plating layer. The nickel plating layer covers at least a portion of the base body. The nickel plating layer includes at least one of phosphorus and boron.Type: ApplicationFiled: February 27, 2018Publication date: October 11, 2018Inventors: Masanori TANIGUCHI, Wataru YAMAUCHI, Toru IWAI, Toyoshi YOSHIDA, Dai YOKOZAWA
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Publication number: 20180283520Abstract: A bicycle sprocket assembly comprises a sprocket support member and a reinforcement member. The sprocket support member is configured to support a sprocket. The sprocket support member includes a central cylindrical portion and at least one sprocket support portion extending radially outwardly from the central cylindrical portion with respect to a rotational center axis of the bicycle sprocket assembly. The sprocket support member is made of a non-metallic material. The reinforcement member is provided in the central cylindrical portion to reinforce the central cylindrical portion in a circumferential direction about the rotational center axis.Type: ApplicationFiled: March 29, 2017Publication date: October 4, 2018Applicant: SHIMANO INC.Inventors: Tooru IWAI, Tetsu NONOSHITA, Toyoshi YOSHIDA
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Publication number: 20180281898Abstract: A bicycle sprocket assembly comprises a sprocket support member. The sprocket support member comprises a central cylindrical portion and a plurality of sprocket support portions. The plurality of sprocket support portions extends radially outwardly from the central cylindrical portion with respect to a rotational center axis of the bicycle sprocket assembly. At least one sprocket support portion of the plurality of sprocket support portions comprises at least one radially extending surface, at least one axially extending surface, and an interior cavity. The at least one radially extending surface extends radially relative to the rotational center axis to support at least one of the at least one sprocket. The at least one axially extending surface extends in an axial direction parallel to the rotational center axis.Type: ApplicationFiled: March 29, 2017Publication date: October 4, 2018Applicant: SHIMANO INC.Inventors: Tooru IWAI, Tetsu NONOSHITA, Toyoshi YOSHIDA
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Publication number: 20180207979Abstract: A bicycle rim comprises a base member, a cover member, and a spoke attachment member. The base member includes a truss structure that defines at least one opening. The cover member at least partly covers the at least one opening of the base member. The spoke attachment member is a separate member from the base member and the cover member. The spoke attachment member is non-rotatably attached to the base member.Type: ApplicationFiled: January 20, 2017Publication date: July 26, 2018Inventors: Tooru IWAI, Tetsu NONOSHITA, Toyoshi YOSHIDA
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Publication number: 20180194431Abstract: A bicycle sprocket comprises at least one chain engaging member constituting at least a part of at least one sprocket tooth of the bicycle sprocket. The at least one chain engaging member is configured to contact a bicycle chain in a state where the bicycle chain engages with the bicycle sprocket. The at least one chain engaging member is made of a first material. At least one bicycle attachment member constitutes at least a part of a sprocket body of the bicycle sprocket. The at least one bicycle attachment member is configured to be coupled to a bicycle. The at least one bicycle attachment member is made of a second material that is different from the first material. At least one shifting facilitation area is provided in the at least one chain engaging member to facilitate a shifting operation of a bicycle chain.Type: ApplicationFiled: January 6, 2017Publication date: July 12, 2018Applicant: SHIMANO INC.Inventors: Tooru IWAI, Tetsu NONOSHITA, Toyoshi YOSHIDA
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Patent number: 9932090Abstract: A bicycle rear sprocket assembly has a rotational center axis. The bicycle rear sprocket assembly comprises a first sprocket and a second sprocket. The first sprocket includes a first sprocket body and a first chain-engagement structure. The first sprocket body is made of a non-metallic material. The first chain-engagement structure is made of a metallic material and is configured to engage with a bicycle chain. The second sprocket includes a second sprocket body and a second chain-engagement structure. The second sprocket body is made of a non-metallic material and attached to the first sprocket body. The second chain-engagement structure is made of a metallic material and is configured to engage with the bicycle chain.Type: GrantFiled: May 30, 2016Date of Patent: April 3, 2018Assignee: SHIMANO INC.Inventors: Toyoshi Yoshida, Toshinari Oishi, Tsuyoshi Fukumori
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Publication number: 20180057106Abstract: A bicycle crank arm is basically provided that includes a first structural member and a second structural member attached to the first structural member. The first structural member is made of a first material including a non-metallic material. The second structural member is made of a second material that is different from the first material.Type: ApplicationFiled: August 30, 2016Publication date: March 1, 2018Inventors: Tooru IWAI, Tetsu NONOSHITA, Toyoshi YOSHIDA