Patents by Inventor Tsutomu Muraoka

Tsutomu Muraoka 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).

  • Patent number: 10427751
    Abstract: A bicycle-brake-caliper attachment structure comprises a base member. The base member is configured to be coupled to a brake caliper configured to apply a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The base member is configured to be attached to a bicycle frame such that relative position between the rotational axis of the brake disc rotor and the brake caliper is adjustable in a radial direction of the brake disc rotor.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: October 1, 2019
    Assignee: SHIMANO INC.
    Inventors: Daisuke Noborio, Tsutomu Muraoka, Osamu Kariyama, Masahiro Nakakura
  • Patent number: 10266226
    Abstract: A disc brake caliper for applying a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The disc brake caliper comprises an attachment surface and a first threaded hole. The attachment surface is configured to face a pipe portion of a bicycle frame in a state where the disc brake caliper is coupled to the bicycle frame. A first thread bolt is to be inserted in the first threaded hole so as to couple the disc brake caliper to one of the bicycle frame and a base member attached to the bicycle frame, the first threaded hole being provided on the attachment surface.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: April 23, 2019
    Assignee: SHIMANO INC.
    Inventors: Daisuke Noborio, Tsutomu Muraoka, Osamu Kariyama, Masahiro Nakakura
  • Publication number: 20180148124
    Abstract: A bicycle-brake-caliper attachment structure comprises a base member. The base member is configured to be coupled to a brake caliper configured to apply a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The base member is configured to be attached to a bicycle frame such that relative position between the rotational axis of the brake disc rotor and the brake caliper is adjustable in a radial direction of the brake disc rotor.
    Type: Application
    Filed: January 23, 2018
    Publication date: May 31, 2018
    Applicant: SHIMANO INC.
    Inventors: Daisuke NOBORIO, Tsutomu MURAOKA, Osamu KARIYAMA, Masahiro NAKAKURA
  • Patent number: 9908585
    Abstract: A bicycle brake caliper assembly comprises a brake caliper and a base member. The brake caliper is configured to apply a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The base member is configured to be coupled to the brake caliper and to be attached to a bicycle frame such that relative position between the rotational axis of the brake disc rotor and the brake caliper is adjustable in a radial direction of the brake disc rotor. The base member includes a first coupling portion at which the brake caliper is coupled, and a second coupling portion at which the brake caliper is coupled and which is arranged apart from the first coupling portion in the radial direction.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: March 6, 2018
    Assignee: SHIMANO INC.
    Inventors: Daisuke Noborio, Tsutomu Muraoka, Osamu Kariyama, Masahiro Nakakura
  • Patent number: 9644584
    Abstract: A vehicle fuel supply structure with an improved fuel filter for easy maintenance of the fuel filter. A vehicle fuel supply structure includes fuel in a fuel tank that is sucked by a fuel pump and supplied to a fuel injection valve disposed in a throttle body via a secondary fuel filter adapted to filter the fuel to remove foreign matter therein. A regulator is provided for regulating fuel pressure. The secondary fuel filter, the regulator and the fuel injection valve are connected by fuel pipes. A third fuel filter is installed at least in an inlet side connecting portion between the regulator and a regulator inlet side fuel pipe, of the fuel pipes, on the side where fuel enters the regulator.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: May 9, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tsubasa Ishii, Shosuke Suzuki, Tsutomu Muraoka, Takatomo Enami
  • Publication number: 20170043839
    Abstract: A disc brake caliper for applying a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The disc brake caliper comprises an attachment surface and a first threaded hole. The attachment surface is configured to face a pipe portion of a bicycle frame in a state where the disc brake caliper is coupled to the bicycle frame. A first thread bolt is to be inserted in the first threaded hole so as to couple the disc brake caliper to one of the bicycle frame and a base member attached to the bicycle frame, the first threaded hole being provided on the attachment surface.
    Type: Application
    Filed: October 31, 2016
    Publication date: February 16, 2017
    Applicant: SHIMANO INC.
    Inventors: Daisuke NOBORIO, Tsutomu MURAOKA, Osamu KARIYAMA, Masahiro NAKAKURA
  • Patent number: 9561835
    Abstract: A bicycle brake assembly includes a brake unit, a fixing structure and an alignment structure. The brake unit includes first and second brake arms. The fixing structure is configured to operatively couple the brake unit to a brake supporting portion of a bicycle frame. The alignment structure is disposed in the vicinity of the fixing structure. The alignment structure is configured to align the brake unit to the brake supporting portion.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: February 7, 2017
    Assignee: Shimano Inc.
    Inventors: Takeshi Takachi, Tsutomu Muraoka
  • Patent number: 9533733
    Abstract: A disc brake caliper for applying a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The disc brake caliper comprises an attachment surface and a first threaded hole. The attachment surface is configured to face a pipe portion of a bicycle frame in a state where the disc brake caliper is coupled to the bicycle frame. A first thread bolt is to be inserted in the first threaded hole so as to couple the disc brake caliper to one of the bicycle frame and a base member attached to the bicycle frame, the first threaded hole being provided on the attachment surface.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: January 3, 2017
    Assignee: SHIMANO INC.
    Inventors: Daisuke Noborio, Tsutomu Muraoka, Osamu Kariyama, Masahiro Nakakura
  • Patent number: 9347505
    Abstract: A disc brake caliper comprises a caliper main-body. The caliper main-body includes a facing surface and an attachment structure. The facing surface is configured to face a mounting portion of a bicycle frame to which the disc brake caliper is attached. A connecting member is to be attached to the attachment structure. The connecting member is configured to be connected to a fluid hose. The attachment structure is provided on the facing surface.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: May 24, 2016
    Assignee: SHIMANO INC.
    Inventors: Daisuke Noborio, Tsutomu Muraoka, Osamu Kariyama, Masahiro Nakakura
  • Patent number: 9227691
    Abstract: A bicycle brake caliper assembly comprises a brake caliper and a base member. The brake caliper is configured to apply a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The base member is configured to be coupled to the brake caliper and to be attached to a bicycle frame such that relative position between the rotational axis of the brake disc rotor and the brake caliper is adjustable in a radial direction of the brake disc rotor.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: January 5, 2016
    Assignee: SHIMANO INC.
    Inventors: Daisuke Noborio, Tsutomu Muraoka, Osamu Kariyama, Masahiro Nakakura
  • Publication number: 20150360744
    Abstract: A bicycle brake caliper assembly comprises a brake caliper and a base member. The brake caliper is configured to apply a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The base member is configured to be coupled to the brake caliper and to be attached to a bicycle frame such that relative position between the rotational axis of the brake disc rotor and the brake caliper is adjustable in a radial direction of the brake disc rotor. The base member includes a first coupling portion at which the brake caliper is coupled, and a second coupling portion at which the brake caliper is coupled and which is arranged apart from the first coupling portion in the radial direction.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 17, 2015
    Applicant: SHIMANO INC.
    Inventors: Daisuke NOBORIO, Tsutomu MURAOKA, Osamu KARIYAMA, Masahiro NAKAKURA
  • Publication number: 20150210345
    Abstract: A disc brake caliper comprises a caliper main-body. The caliper main-body includes a facing surface and an attachment structure. The facing surface is configured to face a mounting portion of a bicycle frame to which the disc brake caliper is attached. A connecting member is to be attached to the attachment structure. The connecting member is configured to be connected to a fluid hose. The attachment structure is provided on the facing surface.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 30, 2015
    Applicant: SHIMANO INC.
    Inventors: Daisuke NOBORIO, Tsutomu MURAOKA, Osamu KARIYAMA, Masahiro NAKAKURA
  • Publication number: 20150001012
    Abstract: A disc brake caliper for applying a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The disc brake caliper comprises an attachment surface and a first threaded hole. The attachment surface is configured to face a pipe portion of a bicycle frame in a state where the disc brake caliper is coupled to the bicycle frame. A first thread bolt is to be inserted in the first threaded hole so as to couple the disc brake caliper to one of the bicycle frame and a base member attached to the bicycle frame, the first threaded hole being provided on the attachment surface.
    Type: Application
    Filed: May 21, 2014
    Publication date: January 1, 2015
    Applicant: SHIMANO INC.
    Inventors: Daisuke NOBORIO, Tsutomu MURAOKA, Osamu KARIYAMA, Masahiro NAKAKURA
  • Publication number: 20150001014
    Abstract: A bicycle brake caliper assembly comprises a brake caliper and a base member. The brake caliper is configured to apply a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The base member is configured to be coupled to the brake caliper and to be attached to a bicycle frame such that relative position between the rotational axis of the brake disc rotor and the brake caliper is adjustable in a radial direction of the brake disc rotor.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Daisuke NOBORIO, Tsutomu MURAOKA, Osamu KARIYAMA, Masahiro NAKAKURA
  • Publication number: 20130333985
    Abstract: A bicycle brake assembly includes a brake unit, a fixing structure and an alignment structure. The brake unit includes first and second brake arms. The fixing structure is configured to operatively couple the brake unit to a brake supporting portion of a bicycle frame. The alignment structure is disposed in the vicinity of the fixing structure. The alignment structure is configured to align the brake unit to the brake supporting portion.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 19, 2013
    Applicant: SHIMANO INC.
    Inventors: Takeshi TAKACHI, Tsutomu MURAOKA
  • Publication number: 20130239928
    Abstract: A vehicle fuel supply structure with an improved fuel filter for easy maintenance of the fuel filter. A vehicle fuel supply structure includes fuel in a fuel tank that is sucked by a fuel pump and supplied to a fuel injection valve disposed in a throttle body via a secondary fuel filter adapted to filter the fuel to remove foreign matter therein. A regulator is provided for regulating fuel pressure. The secondary fuel filter, the regulator and the fuel injection valve are connected by fuel pipes. A third fuel filter is installed at least in an inlet side connecting portion between the regulator and a regulator inlet side fuel pipe, of the fuel pipes, on the side where fuel enters the regulator.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 19, 2013
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tsubasa ISHII, Shosuke SUZUKI, Tsutomu MURAOKA, Takatomo ENAMI
  • Patent number: 7578563
    Abstract: A bicycle rim is basically provided with an annular metallic rim member and a reinforcing member. The annular metallic rim member includes a plurality of spoke attachment areas with at least one spoke attachment opening in each of the spoke attachment areas. The reinforcing member overlies an exterior surface of the annular metallic rim member. The reinforcing member includes a plurality of spoke attachment sections individually arranged in a circumferential direction to overlie the spoke attachment openings. The spoke attachment sections include a plurality of discrete first reinforcing parts and a plurality of discrete second reinforcing parts. The first reinforcing parts are attached to the spoke attachment areas around the spoke attachment openings. The second reinforcing parts are attached to the spoke attachment areas to overlie the first reinforcing parts, with the second reinforcing parts being larger than the first reinforcing parts.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: August 25, 2009
    Assignee: Shimano Inc.
    Inventors: Tsutomu Muraoka, Takashi Yaegashi, Shinpei Okajima
  • Patent number: 7503133
    Abstract: A bicycle pedal assembly includes a pair of pedals and a pair of cleats. The cleats are configured and arranged to selectively cooperate with the right and left bicycle pedals such that two different release forces can be attained using a single pair of cleats. The pedal includes a body that rotates about a shaft and a front and rear clamping members are coupled to opposite ends of the pedal body. Also, the front and rear clamping members are preferably pivotally coupled to the pedal body.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: March 17, 2009
    Assignee: Shimano Inc.
    Inventor: Tsutomu Muraoka
  • Patent number: 7464994
    Abstract: A bicycle rim is provided with an annular metallic rim member and at least one reinforcing resin material. The annular metallic rim member includes an annular tire attachment portion adapted to have a tire mounted thereon, a first annular side wall portion, a second annular side wall portion and an inner annular wall portion connecting the first and second annular side wall portions with a plurality of spoke attachment openings formed in the inner annular wall portion. The at least one reinforcing resin material is attached to the annular metallic rim member such that the reinforcing resin material continuously extends from the first annular side wall portion across the inner annular wall portion to the second annular side wall portions to overlie exterior surface areas of the first and second annular side wall portions and exterior surface areas of the inner annular wall portion around the spoke attachment openings.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: December 16, 2008
    Assignee: Shimano Inc.
    Inventors: Shinpei Okajima, Takashi Yaegashi, Tsutomu Muraoka
  • Patent number: 7430941
    Abstract: A bicycle pedal assembly has a cleat releasably coupled to a pedal by a cleat engagement mechanism formed on an upper surface of its pedal body. The pedal body has a front end configured and arranged to include a sole guide portion that assists the rider in rotating the pedal body about its pedal shaft. In one embodiment, the sole guide portion is formed by a first concaved sole receiving recess located in a tip surface of the pedal body and a second concaved sole receiving recess located on the upper surface of the pedal body adjacent to the tip surface. Alternatively, the concaved sole receiving recesses can be replaced with either a pair of laterally spaced projections located on at the front end of the pedal body, or a V-shaped tip surface.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: October 7, 2008
    Assignee: Shimano Inc.
    Inventors: Tsutomu Muraoka, Tomohiko Nishimura