Patents by Inventor Yumiko Mineno
Yumiko Mineno 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: 10233981Abstract: A clutch unit includes a lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation, and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side. The lever-side clutch portion has an outer centering spring provided between a lever-side outer ring to be rotated through the lever operation and a cover restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the lever-side outer ring.Type: GrantFiled: May 8, 2015Date of Patent: March 19, 2019Assignee: NTN CORPORATIONInventors: Koji Sato, Takahide Saito, Masahiro Kawai, Kouji Isoda, Naochika Kubota, Yumiko Mineno, Hiromitsu Hamazaki
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Patent number: 9618062Abstract: A clutch unit includes a lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation, and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side. The lever-side clutch portion has an outer centering spring provided between a lever-side outer ring to be rotated through the lever operation and a cover restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the lever-side outer ring.Type: GrantFiled: May 8, 2015Date of Patent: April 11, 2017Assignee: NTN CORPORATIONInventors: Koji Sato, Takahide Saito, Masahiro Kawai, Kouji Isoda, Naochika Kubota, Yumiko Mineno, Hiromitsu Hamazaki
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Patent number: 9574623Abstract: A clutch unit includes a lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation, and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side. The lever-side clutch portion has an outer centering spring provided between a lever-side outer ring to be rotated through the lever operation and a cover restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the lever-side outer ring.Type: GrantFiled: May 8, 2015Date of Patent: February 21, 2017Assignee: NTN CORPORATIONInventors: Koji Sato, Takahide Saito, Masahiro Kawai, Kouji Isoda, Naochika Kubota, Yumiko Mineno, Hiromitsu Hamazaki
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Patent number: 9541147Abstract: A clutch unit includes a lever-side clutch section provided on an input side, for controlling rotational torque to be input through lever operation, and a brake-side clutch section provided on an output side, for transmitting the rotational torque from the lever-side clutch section to the output side, and interrupting rotational torque to be reversely input from the output side. The brake-side clutch section has a two-layer structure, in which two one-way clutches are arranged side by side in an axial direction. The first one-way clutch interrupts rotational torque in a forward direction, which is reversely input from the output side, through meshing of serrated projection and depression portions, whereas the second one-way clutch interrupts rotational torque in a backward direction, which is reversely input from the output side, through meshing of serrated projection and depression portions arranged in an opposite direction.Type: GrantFiled: March 29, 2013Date of Patent: January 10, 2017Assignee: NTN CORPORATIONInventors: Kouji Isoda, Takahide Saito, Masahiro Kawai, Yasumasa Hibi, Yumiko Mineno
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Publication number: 20150300435Abstract: A clutch unit includes a lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation, and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side. The lever-side clutch portion has an outer centering spring provided between a lever-side outer ring to be rotated through the lever operation and a cover restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the lever-side outer ring.Type: ApplicationFiled: May 8, 2015Publication date: October 22, 2015Applicant: NTN CORPORATIONInventors: Koji SATO, Takahide SAITO, Masahiro KAWAI, Kouji ISODA, Naochika KUBOTA, Yumiko MINENO, Hiromitsu HAMAZAKI
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Publication number: 20150240897Abstract: A clutch unit includes a lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation, and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side. The lever-side clutch portion has an outer centering spring provided between a lever-side outer ring to be rotated through the lever operation and a cover restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the lever-side outer ring.Type: ApplicationFiled: May 8, 2015Publication date: August 27, 2015Applicant: NTN CORPORATIONInventors: Koji SATO, Takahide SAITO, Masahiro KAWAI, Kouji ISODA, Naochika KUBOTA, Yumiko MINENO, Hiromitsu HAMAZAKI
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Publication number: 20150240896Abstract: A clutch unit includes a lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation, and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side. The lever-side clutch portion has an outer centering spring provided between a lever-side outer ring to be rotated through the lever operation and a cover restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the lever-side outer ring.Type: ApplicationFiled: May 8, 2015Publication date: August 27, 2015Applicant: NTN CORPORATIONInventors: Koji SATO, Takahide SAITO, Masahiro KAWAI, Kouji ISODA, Naochika KUBOTA, Yumiko MINENO, Hiromitsu HAMAZAKI
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Publication number: 20150240898Abstract: A clutch unit includes a lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation, and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side. The lever-side clutch portion has an outer centering spring provided between a lever-side outer ring to be rotated through the lever operation and a cover restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the lever-side outer ring.Type: ApplicationFiled: May 8, 2015Publication date: August 27, 2015Applicant: NTN CORPORATIONInventors: Koji SATO, Takahide SAITO, Masahiro KAWAI, Kouji ISODA, Naochika KUBOTA, Yumiko MINENO, Hiromitsu HAMAZAKI
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Patent number: 9074644Abstract: A clutch unit includes a lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation, and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side. The lever-side clutch portion has an outer centering spring provided between a lever-side outer ring to be rotated through the lever operation and a cover restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the lever-side outer ring.Type: GrantFiled: March 1, 2011Date of Patent: July 7, 2015Assignee: NTN CORPORATIONInventors: Koji Sato, Takahide Saito, Masahiro Kawai, Kouji Isoda, Naochika Kubota, Yumiko Mineno, Hiromitsu Hamazaki
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Publication number: 20150096859Abstract: A clutch unit includes a lever-side clutch section provided on an input side, for controlling rotational torque to be input through lever operation, and a brake-side clutch section provided on an output side, for transmitting the rotational torque from the lever-side clutch section to the output side, and interrupting rotational torque to be reversely input from the output side. The brake-side clutch section has a two-layer structure, in which two one-way clutches are arranged side by side in an axial direction. The first one-way clutch interrupts rotational torque in a forward direction, which is reversely input from the output side, through meshing of serrated projection and depression portions, whereas the second one-way clutch interrupts rotational torque in a backward direction, which is reversely input from the output side, through meshing of serrated projection and depression portions arranged in an opposite direction.Type: ApplicationFiled: March 29, 2013Publication date: April 9, 2015Applicant: NTN CORPORATIONInventors: Kouji Isoda, Takahide Saito, Masahiro Kawai, Yasumasa Hibi, Yumiko Mineno
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Patent number: 8985296Abstract: A clutch unit includes lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side. The lever-side clutch portion has an outer centering spring provided between a lever-side outer ring to be rotated through the lever operation and a cover restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the input-side member. The outer centering spring has a band plate-like spring member having a C-shape.Type: GrantFiled: February 10, 2011Date of Patent: March 24, 2015Assignee: NTN CorporationInventors: Masahiro Kawai, Kouji Isoda, Yumiko Mineno
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Publication number: 20120305359Abstract: Provided is a clutch unit, comprising: a lever-side clutch portion (11) for controlling transmission and interruption of rotational torque to an output side through lever operation; and a brake-side clutch portion (12) for transmitting torque input from the lever-side clutch portion (11) to the output side and for interrupting torque reversely input from the output side, wherein: the lever-side clutch portion (11) comprises an outer centering spring (19) provided between a lever-side outer ring (14) to be rotated through the lever operation and a cover (24) restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring (14) and for restoring the lever-side outer ring (14) to a neutral state with the accumulated elastic force through releasing of the torque input from the lever-side outer ring (14); the cover (24) comprises an inclined portion (24g) which abuts on the outer centering spring (19) and swells to the outer centering spring (19) side; and a roundedType: ApplicationFiled: March 1, 2011Publication date: December 6, 2012Inventors: Koji Sato, Takahide Saito, Masahiro Kawai, Kouji Isoda, Naochika Kubota, Yumiko Mineno, Hiromitsu Hamazaki
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Publication number: 20120279819Abstract: Provided is a clutch unit, comprising: a lever-side clutch portion for controlling transmission and interruption of rotational torque to an output side through lever operation; and a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side, wherein: the lever-side clutch portion comprises an outer centering spring (19) provided between a lever-side outer ring to be rotated through the lever operation and a cover (24) restricted in rotation, for accumulating an elastic force obtained by torque input from the lever-side outer ring and for restoring the lever-side outer ring to a neutral state with the accumulated elastic force through releasing of the torque input from the input-side member, the outer centering spring (19) comprising a band plate-like spring member having a C-shape, the cover (24) comprising an inclined portion (24g) which abuts on the outer centering spring (19) and swells to tType: ApplicationFiled: February 10, 2011Publication date: November 8, 2012Inventors: Masahiro Kawai, Kouji Isoda, Yumiko Mineno
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Patent number: D836370Type: GrantFiled: February 26, 2016Date of Patent: December 25, 2018Assignee: NTN CORPORATIONInventors: Kyohei Sasanuma, Yumiko Mineno