Patents by Inventor Masahide Onuki

Masahide Onuki 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: 20200047026
    Abstract: Provided is a sensor device-equipped golf shoes comprising: golf shoes including a left and right pair of a first shoe and a second shoe to be worn by a golfer; and a sensor device attached to the golf shoes. The sensor device includes one or more sensor modules configured to measure sensor data pertaining to at least one of an orientation of the first shoe when the golfer takes a shot, an orientation of the second shoe when the golfer takes a shot, and a positional relationship between the first shoe and the second shoe when the golfer takes a shot.
    Type: Application
    Filed: August 9, 2019
    Publication date: February 13, 2020
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Masahide ONUKI
  • Patent number: 10537769
    Abstract: A hollow golf club head comprises a face part having a face for striking a ball, and a main body extending rearward from the face part. The main body is provided with a low-rigidity zone which comprises through holes and connecting portions arranged alternately along a peripheral edge of the face. The through holes penetrate the main body from the outside to the inside of the main body. The connecting portions extend in the front-back direction of the head, and include an oblique connecting portion comprising an oblique part inclined with respect to the front-back direction.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: January 21, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahide Onuki, Hiroshi Hasegawa, Hiromasa Tsunashima
  • Publication number: 20190374831
    Abstract: A golf club head includes a head body, a face part located apart from the head body, and a plurality of connecting parts that extend between the head body and the face part. Each connecting part includes an inclination portion that extends while inclining with respect to a face perpendicular direction. The inclination portion may include a straight inclination portion that extends along a straight line. The inclination portion may include an arc inclination portion that extends along a circular arc. The inclination portion may include a first inclination portion and a second inclination portion that are inclined inversely to each other. The inclination portion can facilitate deformation of the connecting part at impact.
    Type: Application
    Filed: May 21, 2019
    Publication date: December 12, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Masahide ONUKI
  • Publication number: 20190374823
    Abstract: A hollow golf club head comprises a face portion having a club face for hitting a ball, and a main body portion including a crown wall, a side wall and a sole wall which extend from the face portion toward the rear of the head. At least one of the walls of the main body portion is provided with a folded portion for facilitating a partial elastic deformation of the main body portion when the face portion hits a ball. The folded portion includes a first folded portion and a second folded portion each extending in the front-back direction of the head while swinging in the thickness direction of the wall. The first folded portion and the second folded portion are continuous with each other and extend along the peripheral edge of the club face, and have different phases in the swing.
    Type: Application
    Filed: May 30, 2019
    Publication date: December 12, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hiromasa TSUNASHIMA, Masahide ONUKI
  • Patent number: 10456621
    Abstract: Provided is an impact point estimation apparatus for estimating an impact point on a face surface of a head when a golf club having a grip, a shaft and the head is swung and hits a golf ball. The apparatus has an acquisition unit, a calculation unit, and an estimation unit. The acquisition unit is configured to acquire time series sensor data that is output from at least one of an angular velocity sensor and an acceleration sensor that is attached to at least one of the grip and the shaft. The calculation unit is configured to calculate a characteristic value of an initial stress wave that occurs due to impact from the sensor data acquired in an analysis period including an initial period after impact. The estimation unit is configured to estimate the impact point on the face surface, according to the characteristic value. The analysis period is before a predetermined short time period has elapsed from impact.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: October 29, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Masahide Onuki
  • Publication number: 20190314703
    Abstract: Provided is a sensitive golf club with a sensor unit. The sensor unit includes a battery, a sensor module configured to measure sensor data indicating a state of the golf club using power from the battery, a communications unit configured to wirelessly transmit the sensor data to an external device using power from the battery, and a control unit configured to control operation of the sensor module and the communications unit using power from the battery. The sensor unit has an A mode, and a B mode in which operation of the communications unit is suppressed compared to the A mode. The control unit is configured to judge whether or not the golf club is prepared for a shot based on the sensor data, and switch between the A mode and B mode based on whether or not the golf club is prepared for a shot.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 17, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masahide ONUKI, Masahiko UEDA, Kousuke OKAZAKI, Yuto NAKAMURA, Yuki NAGANO
  • Patent number: 10420987
    Abstract: A hollow golf club head has: a moment of inertia Ix around a vertical axis of 4500 to 5900 g sq·cm; and a moment of inertia Iy around an inclined axis of 5300 to 6800 g sq·cm, which satisfy Iy=<1.071 I×Ix+482 g sq·cm. The vertical axis passes through the center of gravity of the head under a standard state in which the head is set on a horizontal plane so that a shaft center line is inclined at a lie angle of 60 degrees with respect to the horizontal plane within a vertical plane and a club face lies at the loft angle. The inclined axis passes through the center of gravity of the head and is inclined downwardly toward the toe from the heel at 62 degrees with respect to the horizontal plane within a plane parallel with the above-mentioned vertical plane.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 24, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Wataru Kimizuka, Masahide Onuki
  • Publication number: 20190262669
    Abstract: A hollow golf club head 1 comprises a face portion 2 which includes a club face 2a for striking a ball, and a main body 3 extending rearward of the head from the face portion 2. The face Portion 2 is made of a low-specific-gravity material having a specific gravity of 4.0 or less. The main body 3 is provided in its face portion 2 side with a low stiffness zone 10 where the stiffness is locally reduced.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 29, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masahide ONUKI, Hiroshi HASEGAWA, Hiromasa TSUNASHIMA
  • Patent number: 10369426
    Abstract: A golf club includes a head 200, a shaft 300, and a tip engagement part RT having a reverse-tapered shape and being disposed at a tip end portion of the shaft 300. The tip engagement part RT includes a sleeve 400 having a reverse-tapered shape and being fixed to the tip end portion of the shaft 300, and a spacer 500 having a reverse-tapered shape and being externally fitted to the sleeve 400. The spacer 500 has a divided structure. The hosel part 202 includes a hosel hole 204. The hosel hole 204 includes a reverse-tapered hole 206 corresponding to the shape of the outer surface of the tip engagement part RT. The hosel hole 204 allows the sleeve 400 to pass through the hosel hole 204. The tip engagement part RT is fitted to the reverse-tapered hole 206, and the sleeve 400 is fitted inside the spacer 500.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: August 6, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahide Onuki, Hiroshi Hasegawa, Naruhiro Mizutani, Yuki Motokawa
  • Patent number: 10328318
    Abstract: A golf club 100 includes a tip engagement part RT having a reverse-tapered shape and being disposed at a tip end portion of a shaft 300, and a screw member 600. The tip engagement part RT includes a sleeve 400 fixed to the tip end portion of the shaft 300. The sleeve 400 has a sleeve-side connection part 410. The screw member 600 has a screw-side connection part 602 that can be detachably connected to the sleeve-side connection part 410, and a male screw part 604. The head 200 has a female screw part 220. When the screw member 600 is rotated in a first direction, the screw member 600 presses the tip engagement part RT in an engaging direction. When the screw member 600 is rotated in a second direction, the screw member 600 pulls the tip engagement part RT in an engagement releasing direction.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: June 25, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahide Onuki, Hiroshi Hasegawa, Naruhiro Mizutani, Yuki Motokawa
  • Publication number: 20190168083
    Abstract: A golf club includes a head including a hosel part, a shaft, and a tip engagement part having a reverse-tapered shape and being disposed at a tip end portion of the shaft. The tip engagement part includes a sleeve having a reverse-tapered shape and being fixed to the tip end portion of the shaft. The hosel part includes a hosel hole. The hosel hole includes a reverse-tapered hole corresponding to at least a part of the outer surface of the tip engagement part. The tip engagement part is fitted to the reverse-tapered hole. Of the hosel hole, at least an upper end edge and a lower end edge are formed by a resin.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 6, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahide ONUKI, Yuki MOTOKAWA, Naruhiro MIZUTANI
  • Patent number: 10286265
    Abstract: A golf club head 1 having a hollow (i) therein comprises a face portion 2 having a face 2a for striking a ball, a crown portion 3 forming the head top surface, and a sole portion 4 forming a bottom of the head. One of or each of the crown portion 3 and the sole portion 4 is provided with a plurality of grooves bent in the same direction.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: May 14, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hiromasa Tsunashima, Naruhiro Mizutani, Hiroshi Hasegawa, Masahide Onuki
  • Patent number: 10279223
    Abstract: A golf club 100 includes a head 200 having a hosel part 202, a shaft 300, and a reverse-tapered engagement part RT. The reverse-tapered engagement part RT includes a sleeve 400 having a reverse-tapered shape and being fixed to a tip portion of the shaft 300, and a spacer fitted outside of the sleeve 400. The hosel part 202 includes a hosel hole 204 and a hosel slit 206 which is provided on a side of the hosel hole 204 and enables the shaft 300 to pass through the hosel slit. The hosel hole 204 has a reverse-tapered hole 205 having a shape corresponding to a shape of an outer surface of the reverse-tapered engagement part RT. The reverse-tapered engagement part RT is fitted to the reverse-tapered hole 205. A club length is changed by changing a wall thickness of the spacer.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: May 7, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahide Onuki, Yuki Motokawa, Naruhiro Mizutani
  • Patent number: 10207159
    Abstract: A shaft of a golf club includes a reverse-tapered engagement part. The reverse-tapered engagement part includes a sleeve having a reverse-tapered shape, and a reverse-tapered outer surface. A hosel part of a head includes a reverse-tapered inner surface and a hosel slit. A hosel hole includes the reverse-tapered inner surface having a shape corresponding to that of the reverse-tapered outer surface. Either one of the reverse-tapered outer surface and the reverse-tapered inner surface includes an abutting engagement surface and a non-abutting engagement surface. The other of the reverse-tapered outer surface and the reverse-tapered inner surface includes a first abutting surface and the second abutting surface. In the golf club, a first state and a second state in which club lengths are different from each other can be achieved.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: February 19, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahide Onuki, Yuki Motokawa, Naruhiro Mizutani
  • Patent number: 10201740
    Abstract: Provided is a weight pattern determination apparatus for determining, in a golf club having a head capable of mounting one or more weights in a plurality of mounting patterns, the mounting pattern suited to a golfer. The apparatus has an impact point specification unit and a pattern determination unit. The impact point specification unit specifies an impact point distribution of the golfer. The pattern determination unit determines a recommended pattern which is the mounting pattern that approximates a sweet area of the golf club to the impact point distribution. According to the first aspect of the present invention, the impact point distribution of the golfer is specified, and a mounting pattern is determined based on this impact point distribution.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: February 12, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahide Onuki, Masaru Kono
  • Publication number: 20180345088
    Abstract: A golf club 100 includes a tip engagement part RT having a reverse-tapered shape and being disposed at a tip end portion of a shaft 300, and a screw member 600. The tip engagement part RT includes a sleeve 400 fixed to the tip end portion of the shaft 300. The sleeve 400 has a sleeve-side connection part 410. The screw member 600 has a screw-side connection part 602 that can be detachably connected to the sleeve-side connection part 410, and a male screw part 604. The head 200 has a female screw part 220. When the screw member 600 is rotated in a first direction, the screw member 600 presses the tip engagement part RT in an engaging direction. When the screw member 600 is rotated in a second direction, the screw member 600 pulls the tip engagement part RT in an engagement releasing direction.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 6, 2018
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahide ONUKI, Hiroshi HASEGAWA, Naruhiro MIZUTANI, Yuki MOTOKAWA
  • Publication number: 20180296888
    Abstract: A hollow golf club head comprises a face part having a face for striking a ball, and a main body extending rearward from the face part. The main body is provided with a low-rigidity zone which comprises through holes and connecting portions arranged alternately along a peripheral edge of the face. The through holes penetrate the main body from the outside to the inside of the main body. The connecting portions extend in the front-back direction of the head, and include an oblique connecting portion comprising an oblique part inclined with respect to the front-back direction.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 18, 2018
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masahide ONUKI, Hiroshi HASEGAWA, Hiromasa TSUNASHIMA
  • Publication number: 20180250559
    Abstract: A golf club head 1 having a hollow (i) therein comprises a face portion 2 having a face 2a for striking a ball, a crown portion 3 forming the head top surface, and a sole portion 4 forming a bottom of the head. One of or each of the crown portion 3 and the sole portion 4 is provided with a plurality of grooves bent in the same direction.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 6, 2018
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hiromasa TSUNASHIMA, Naruhiro MIZUTANI, Hiroshi HASEGAWA, Masahide ONUKI
  • Patent number: 10010761
    Abstract: A golf ball has, on a surface thereof, a rugged pattern composed of a land and a large number of dimples. A method for designing the rugged pattern includes the steps of: (1) assuming a large number of circles on a surface of a phantom sphere; (2) assuming a large number of generating points 16 based on positions of the large number of circles; (3) assuming a large number of Voronoi regions 18 on the surface of the phantom sphere by a Voronoi tessellation based on the large number of generating points 16; and (4) assigning a dimple and a land to the surface of the phantom sphere based on contours of the large number of Voronoi regions 18.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: July 3, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hyoungchol Kim, Masahide Onuki, Takahiro Sajima, Kohei Mimura
  • Publication number: 20180178086
    Abstract: A golf club includes a head 200, a shaft 300, and a tip engagement part RT having a reverse-tapered shape and being disposed at a tip end portion of the shaft 300. The tip engagement part RT includes a sleeve 400 having a reverse-tapered shape and being fixed to the tip end portion of the shaft 300, and a spacer 500 having a reverse-tapered shape and being externally fitted to the sleeve 400. The spacer 500 has a divided structure. The hosel part 202 includes a hosel hole 204. The hosel hole 204 includes a reverse-tapered hole 206 corresponding to the shape of the outer surface of the tip engagement part RT. The hosel hole 204 allows the sleeve 400 to pass through the hosel hole 204. The tip engagement part RT is fitted to the reverse-tapered hole 206, and the sleeve 400 is fitted inside the spacer 500.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 28, 2018
    Applicants: DUNLOP SPORTS CO. LTD., SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masahide ONUKI, Hiroshi HASEGAWA, Naruhiro MIZUTANI, Yuki MOTOKAWA