Patents by Inventor Takuji Takamatsu

Takuji Takamatsu 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).

  • Publication number: 20190098884
    Abstract: A fishing reel includes a drive shaft connected to a handle and supported by the reel body so as to be rotatable about a first axis, a drive gear on the drive shaft, a pinion gear rotating about a second axis with the rotation of the drive shaft and meshing with the drive gear, and a shaft bearing supporting the drive shaft so as to be rotatable about the first axis. The shaft bearing includes an inner race with an inner bearing surface contacting the drive shaft and an outer race having an outer bearing surface contacting the reel body. The inner bearing surface or the outer bearing surface includes an adjustment portion that causes the drive shaft to move in the first axial direction relative to the reel body, when the shaft bearing is moved relative to the drive shaft and the reel body.
    Type: Application
    Filed: August 27, 2018
    Publication date: April 4, 2019
    Inventors: Kei SAITO, Takuji TAKAMATSU, Satoshi IKEBUKURO
  • Publication number: 20190090467
    Abstract: A rotor braking device includes a moving member, a brake, and a protrusion. The moving member is disposed on the rotor so as to be capable of assuming a first position corresponding to a line-winding position and a second position corresponding to a line-releasing position in cooperation with a bail arm. The brake includes a friction portion rotatable relative to the reel body and frictionally engages the reel body, and a plurality of engagement portions that engage the moving member when the moving member moves to the second position, and brakes the rotation of the rotor when the moving member engages the engagement portions. The protrusion is on either the reel body or the friction portion, and in contact with the other of the friction portion or the reel body, and causes the friction portion to partially frictionally engage the reel body.
    Type: Application
    Filed: August 20, 2018
    Publication date: March 28, 2019
    Inventors: Satoshi IKEBUKURO, Kei SAITO, Takuji TAKAMATSU
  • Publication number: 20190069532
    Abstract: A rotor of a spinning reel for fishing has a cylindrical portion, a first rotor arm, a first bail support, a first coupling member, and a first cover. The cylindrical portion is mounted rotatably on a reel body. The first rotor arm extends forward radially outside the cylindrical portion. The first bail support is pivotably rotatable coupled to a tip of the first rotor arm. The first coupling member couples the first bail support to the first rotor arm and has an engaged portion. The first cover covers at least partially the first rotor arm and the first bail support and has an engaging portion that comes into engagement with the engaged portion of the first coupling member.
    Type: Application
    Filed: August 8, 2018
    Publication date: March 7, 2019
    Applicant: Shimano Inc.
    Inventors: Kei SAITO, Takuji TAKAMATSU, Satoshi IKEBUKURO, Tomoya DEGUCHI
  • Publication number: 20190029242
    Abstract: A roller clutch includes an outer ring, an inner ring, a rollers, a torsion spring, and a housing member. The roller is disposed between the inner ring and the outer ring. The roller i configured to move between a transmitting position and a non-transmitting position. The spring biases the roller to the transmitting position. The housing member has a housing hole and an inner wall surface. The housing hole houses the torsion spring. The inner wall surface defines the housing hole and is configured to support the torsion spring.
    Type: Application
    Filed: April 17, 2018
    Publication date: January 31, 2019
    Inventors: Satoshi IKEBUKURO, Kei SAITO, Takuji TAKAMATSU
  • Publication number: 20180310540
    Abstract: A gear mechanism for a fishing reel includes first and second gears. The first gear has first gear teeth including a first driving side face, and a first reverse side face opposite the first driving side face. The second gear has second gear teeth including a second driven side face that meshes with a respective first driving side faces, and a second reverse side face that faces a respective first reverse side face, and opposite the second driven side faces. At least one of each of the first reverse side faces and each of the second reverse side faces includes an interference prevention portion to prevent interference with the other of the opposing first reverse side faces and second reverse side faces.
    Type: Application
    Filed: January 22, 2018
    Publication date: November 1, 2018
    Inventors: Takuji TAKAMATSU, Tetsuo INOUE, Kei SAITO, Satoshi IKEBUKURO
  • Publication number: 20180255755
    Abstract: A rotor brake mechanism includes a braking member, a moving member, an elastic member, and an adjustment member. The braking member is disposed in a reel body. The moving member is disposed in a rotor to move to a first position corresponding to a line-winding posture and a second position corresponding to a line-releasing posture, in conjunction with a bail arm, and includes an extended portion that extends toward the braking member when the moving member moves to the second position. The elastic member is disposed on the extended portion of the moving member, and comes into contact with an outer peripheral surface of the braking member when the moving member moves to the second position. The adjustment member is disposed between the extended portion of the moving member and the elastic member, and adjusts a position of the elastic member.
    Type: Application
    Filed: January 25, 2018
    Publication date: September 13, 2018
    Applicant: Shimano Inc.
    Inventors: Takuji Takamatsu, Kei Saito, Satoshi Ikebukuro
  • Patent number: 9861084
    Abstract: A rotor for a spinning reel for fishing, includes a cylindrical portion, a first rotor arm, a second rotor arm and a reinforcement portion. The cylindrical portion has a rear end opening that is open. The first rotor arm extends forward from an outer peripheral portion of the cylindrical portion and configured to couple to a first bail support portion including a line roller. The second rotor arm is at a position opposing the first rotor arm, extending forward from the outer peripheral portion of the cylindrical portion, and configured to couple to a second bail support portion holding an end of a bail that extends from the first bail support portion. The reinforcement portion has a wall portion that is thicker than a surrounding portion, and is disposed on an inner peripheral portion of the cylindrical portion in a position at which the first rotor arm is disposed.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: January 9, 2018
    Assignee: Shimano Inc.
    Inventors: Koji Ochiai, Takuji Takamatsu
  • Patent number: 9807989
    Abstract: A dual-bearing reel, includes a reel body, a spool, a spool shaft, an adjustment member, and an operating lever. The spool is rotatable relative to the reel body. The spool shaft is configured to integrally rotate with the spool. The adjustment member is attached to the reel body and configured to adjust a braking force that brakes the rotation of the spool shaft. The operating lever is detachably attached to the adjustment member so as to extend in a radial direction, and configured to be positionally adjusted in a circumferential direction relative to the adjustment member.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: November 7, 2017
    Assignee: Shimano Inc.
    Inventors: Akira Niitsuma, Takeshi Ikuta, Kunio Takechi, Takuji Takamatsu, Hirokazu Hiraoka
  • Patent number: 9737062
    Abstract: A roller clutch includes an outer ring, an inner ring, a roller, a first spring member, a retainer, and a protrusion portion. The roller is disposed between the inner ring and the outer ring and is movable between a transmitting position and a non-transmitting position. The retainer has a roller holding space holding the roller and a support section supporting the first spring member. The protrusion portion is configured to regulate the movement of the roller, and resist the biasing force of the first spring member at a predetermined position.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: August 22, 2017
    Assignee: Shimano, Inc.
    Inventors: Takuji Takamatsu, Kei Saito
  • Publication number: 20170208787
    Abstract: A spinning reel for fishing includes a rotor, a fishing line guiding mechanism, and a bail reversing mechanism. The rotor has a cylindrical portion, and first and second rotor arms disposed in opposed positions on the cylindrical portion. The fishing line guiding mechanism has a line roller to guide a fishing line, a bail, first and second bail support members supporting first and second ends of the bail, the first bail support member coupled to the first rotor arm, and the second bail support member coupled to the second rotor arm. The bail reversing mechanism inverts the fishing line guiding mechanism to line casting or line winding positions. The line roller is disposed on the first bail support member and the bail reversing mechanism is disposed inside the second rotor arm. The first rotor arm includes two support legs extending forwardly from an outer peripheral portion of the cylindrical portion.
    Type: Application
    Filed: December 20, 2016
    Publication date: July 27, 2017
    Inventors: Koji OCHIAI, Takuji TAKAMATSU, Satoshi IKEBUKURO, Kei SAITO
  • Publication number: 20170208786
    Abstract: A rotor for a spinning reel for fishing, includes a cylindrical portion, a first rotor arm, a second rotor arm and a reinforcement portion. The cylindrical portion has a rear end opening that is open. The first rotor arm extends forward from an outer peripheral portion of the cylindrical portion and configured to couple to a first bail support portion including a line roller. The second rotor arm is at a position opposing the first rotor arm, extending forward from the outer peripheral portion of the cylindrical portion, and configured to couple to a second bail support portion holding an end of a bail that extends from the first bail support portion. The reinforcement portion has a wall portion that is thicker than a surrounding portion, and is disposed on an inner peripheral portion of the cylindrical portion in a position at which the first rotor arm is disposed.
    Type: Application
    Filed: December 20, 2016
    Publication date: July 27, 2017
    Inventors: Koji OCHIAI, Takuji TAKAMATSU
  • Patent number: 9706761
    Abstract: A spinning reel for fishing includes a rotor, a fishing line guiding mechanism, and a bail reversing mechanism. The rotor has a cylindrical portion, and first and second rotor arms disposed in opposed positions on the cylindrical portion. The fishing line guiding mechanism has a line roller to guide a fishing line, a bail, first and second bail support members supporting first and second ends of the bail, the first bail support member coupled to the first rotor arm, and the second bail support member coupled to the second rotor arm. The bail reversing mechanism inverts the fishing line guiding mechanism to line casting or line winding positions. The line roller is disposed on the first bail support member and the bail reversing mechanism is disposed inside the second rotor arm. The first rotor arm includes two support legs extending forwardly from an outer peripheral portion of the cylindrical portion.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: July 18, 2017
    Assignee: Shimano Inc.
    Inventors: Koji Ochiai, Takuji Takamatsu, Satoshi Ikebukuro, Kei Saito
  • Patent number: 9700033
    Abstract: A coiled wave spring includes a first and second coiled portions. The first coiled portion has a plurality of first valley parts and a plurality of first peak parts. The first valley parts and the first peak parts are alternately disposed in a circumferential direction. The second coiled portion has a plurality of second peak parts and a plurality of second valley parts. The second peak parts respectively correspond to the first valley parts, whereas the second valley parts respectively correspond to the first peak parts. The second coiled portion extends continuously from the first coiled portion. The first peak parts are disposed away from the corresponding second valley parts at an interval in an axial direction. The first valley parts contact the corresponding second peak parts. Apices of the first valley parts are shifted from apices of the corresponding second peak parts in the circumferential direction.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: July 11, 2017
    Assignee: Shimano Inc.
    Inventors: Takuji Takamatsu, Hirokazu Hiraoka, Kenichi Kawagoshi
  • Patent number: 9668465
    Abstract: A dual-bearing reel, includes a reel body, a handle, a spool, a spool shaft, a friction material an operating portion. The reel body has a first reel body portion and a second reel body portion. The handle is attached to the first reel body portion. The spool is disposed between the first reel body portion and the second reel body portion. The spool shaft is configured to integrally rotate with the spool. The friction material is configured to brake rotation of the spool shaft by frictional force. The operating member is rotatably disposed about the spool shaft in the second reel body portion, a portion of the operating member being exposed from an outer perimeter surface of the second reel body portion, and the operating member is configured to adjust the braking force by the first friction material by being rotated.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: June 6, 2017
    Assignee: Shimano Inc.
    Inventors: Akira Niitsuma, Takeshi Ikuta, Kunio Takechi, Takuji Takamatsu, Hirokazu Hiraoka
  • Patent number: 9591839
    Abstract: A braking operation lever includes a lever main body, an operating section, a brake shoe, and an elastic member. The lever main body has a first end part and a second end part, and is rotatably supported by the reel body. The operating section is configured to cause a braking operation, and is disposed on the first end part of the lever main body. The brake shoe is disposed on the second end part of the lever main body, and is configured to be pressed by the rotor while operating the operating section. The elastic member is disposed between the brake shoe and the lever main body.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: March 14, 2017
    Assignee: Shimano Inc.
    Inventors: Takuji Takamatsu, Keigo Kitajima, Kei Saito, Shingo Matsuo
  • Patent number: 9560841
    Abstract: A braking operation lever for a rotor braking device of a spinning reel for applying a braking force to the rotation of a rotor rotatably supported by a reel body, the braking operation lever includes a lever main body, an operating section, a brake shoe, an elastic member, and a fall out prevention mechanism. The lever body is rotatably supported by the reel body. The operating section is configured to perform a braking operation, and is disposed on a first end part of the lever main body. The brake shoe is disposed on a second end part of the lever main body, and is configured to be pressed against the rotor by operation of the operating section. The elastic member is disposed between the brake shoe and the lever main body. The fall out prevention mechanism prevents the elastic member from falling out of the brake shoe.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: February 7, 2017
    Assignee: Shimano Inc.
    Inventors: Takuji Takamatsu, Kei Saito
  • Patent number: 9549540
    Abstract: A dual-bearing reel includes a reel body, a spool, a spool shaft, a one-way clutch, and an operating lever. The spool is rotatable relative to the reel body. The spool shaft is configured to integrally rotate with the spool. The one-way clutch comprises an outer ring that is rotatable relative to the reel body and a rolling body configured to transmit rotation of the spool shaft in the casting direction to the outer ring, the one-way clutch being attached to the spool shaft. The operating lever is attached to the reel body, extends in a radial direction, and is configured to adjust a braking force that brakes rotation of the outer ring.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: January 24, 2017
    Assignee: Shimano Inc.
    Inventors: Takeshi Ikuta, Kunio Takechi, Takuji Takamatsu, Akira Niitsuma, Hirokazu Hiraoka
  • Publication number: 20160345560
    Abstract: A dual-bearing reel, includes a reel body, a handle, a spool, a spool shaft, a friction material an operating portion. The reel body has a first reel body portion and a second reel body portion. The handle is attached to the first reel body portion. The spool is disposed between the first reel body portion and the second reel body portion. The spool shaft is configured to integrally rotate with the spool. The friction material is configured to brake rotation of the spool shaft by frictional force. The operating member is rotatably disposed about the spool shaft in the second reel body portion, a portion of the operating member being exposed from an outer perimeter surface of the second reel body portion, and the operating member is configured to adjust the braking force by the first friction material by being rotated.
    Type: Application
    Filed: April 14, 2016
    Publication date: December 1, 2016
    Inventors: Akira NIITSUMA, Takeshi IKUTA, Kunio TAKECHI, Takuji TAKAMATSU, Hirokazu HIRAOKA
  • Publication number: 20160345559
    Abstract: A dual-bearing reel includes a reel body, a spool, a spool shaft, a one-way clutch, and an operating lever. The spool is rotatable relative to the reel body. The spool shaft is configured to integrally rotate with the spool. The one-way clutch comprises an outer ring that is rotatable relative to the reel body and a rolling body configured to transmit rotation of the spool shaft in the casting direction to the outer ring, the one-way clutch being attached to the spool shaft. The operating lever is attached to the reel body, extends in a radial direction, and is configured to adjust a braking force that brakes rotation of the outer ring.
    Type: Application
    Filed: April 14, 2016
    Publication date: December 1, 2016
    Inventors: Takeshi IKUTA, Kunio TAKECHI, Takuji TAKAMATSU, Akira NIITSUMA, Hirokazu HIRAOKA
  • Publication number: 20160345558
    Abstract: A dual-bearing reel, includes a reel body, a spool, a spool shaft, an adjustment member, and an operating lever. The spool is rotatable relative to the reel body. The spool shaft is configured to integrally rotate with the spool. The adjustment member is attached to the reel body and configured to adjust a braking force that brakes the rotation of the spool shaft. The operating lever is detachable attached to the adjustment member so as to extend in a radial direction, and configured to be positionally adjusted in a circumferential direction relative to the adjustment member.
    Type: Application
    Filed: April 14, 2016
    Publication date: December 1, 2016
    Inventors: Akira NIITSUMA, Takeshi IKUTA, Kunio TAKECHI, Takuji TAKAMATSU, Hirokazu HIRAOKA