Patents by Inventor Dan S. Nivanh
Dan S. Nivanh 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: 11918866Abstract: A method comprising, in a striking face of a golf club head, the striking face being formed of a first material having a first hardness, creating a plurality of initial grooves, the initial grooves having a first cross-sectional area (A1) and a first pitch (P1) such that A1/P1>0.0030 in. The method continues with modifying the initial grooves at least by positioning a second material in each of the plurality of initial grooves, the second material having a second hardness that is less than the first hardness, such that the first material and the second material form a plurality of final grooves each having a second cross-sectional area (A2) and a second pitch (P2) such that A2/P2<0.0030 in.Type: GrantFiled: July 16, 2021Date of Patent: March 5, 2024Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Patrick Ripp, Dan S. Nivanh, Mika Becktor, Jesse D. Sukman
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Patent number: 11278771Abstract: A golf club head includes a main body having a top portion, a bottom portion, a striking face, and an interior surface. A weight member is coupled to the interior surface of the main body. In an imaginary vertical plane that passes through the weight member, the interior surface of the main body comprises a first point and a second point. An imaginary line passes through the first point and the second point. A first imaginary boundary line and a second imaginary boundary line, both passing through the weight member and being perpendicular to the imaginary line, pass through the first point and the second point, respectively. Between the first point and the second point, the interior surface of the main body has an irregularity factor of at least 1.2 and the weight member comprises a distribution factor of at most 1.0 and a conformity factor of at most 0.07.Type: GrantFiled: February 22, 2018Date of Patent: March 22, 2022Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Sam G. Lacey, Dan S. Nivanh, Nathaniel J. Radcliffe, Dustin J. Brekke
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Publication number: 20210339089Abstract: A method comprising, in a striking face of a golf club head, the striking face being formed of a first material having a first hardness, creating a plurality of initial grooves, the initial grooves having a first cross-sectional area (A1) and a first pitch (P1) such that A1/P1>0.0030 in. The method continues with modifying the initial grooves at least by positioning a second material in each of the plurality of initial grooves, the second material having a second hardness that is less than the first hardness, such that the first material and the second material form a plurality of final grooves each having a second cross-sectional area (A2) and a second pitch (P2) such that A2/P2<0.0030 in.Type: ApplicationFiled: July 16, 2021Publication date: November 4, 2021Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Patrick RIPP, Dan S. NIVANH, Mika BECKTOR, Jesse D. SUKMAN
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Patent number: 11090533Abstract: A method comprising, in a striking face of a golf club head, the striking face being formed of a first material having a first hardness, creating a plurality of initial grooves, the initial grooves having a first cross-sectional area (A1) and a first pitch (P1) such that A1/P1>0.0030 in. The method continues with modifying the initial grooves at least by positioning a second material in each of the plurality of initial grooves, the second material having a second hardness that is less than the first hardness, such that the first material and the second material form a plurality of final grooves each having a second cross-sectional area (A2) and a second pitch (P2) such that A2/P2<0.0030 in.Type: GrantFiled: July 25, 2019Date of Patent: August 17, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Patrick Ripp, Dan S. Nivanh, Mika Becktor, Jesse D. Sukman
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Patent number: 11063996Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.Type: GrantFiled: June 19, 2020Date of Patent: July 13, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: John J. Rae, Nathaniel J. Radcliffe, Daniel J. Stone, Trent E. Garner, Brad S. Hooley, Robert J. Horacek, Sam G. Lacey, Jeff D. Brunski, Kevin Schaeffer, Scott A. Carlyle, Stephen C. Chien, Craig R. Schnell, Douglas E. Roberts, Dan S. Nivanh, Michael J. Wallans
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Publication number: 20200322462Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.Type: ApplicationFiled: June 19, 2020Publication date: October 8, 2020Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: John J. RAE, Nathaniel J. RADCLIFFE, Daniel J. STONE, Trent E. GARNER, Brad S. HOOLEY, Robert J. HORACEK, Sam G. LACEY, Jeff D. BRUNSKI, Kevin SCHAEFFER, Scott A. CARLYLE, Stephen C. CHIEN, Craig R. SCHNELL, Douglas E. ROBERTS, Dan S. NIVANH, Michael J. WALLANS
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Patent number: 10721339Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.Type: GrantFiled: February 28, 2018Date of Patent: July 21, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: John J. Rae, Nathaniel J. Radcliffe, Daniel J. Stone, Trent E. Garner, Brad S. Hooley, Robert J. Horacek, Sam G. Lacey, Jeff D. Brunski, Kevin Schaeffer, Scott A. Carlyle, Stephen C. Chien, Craig R. Schnell, Douglas E. Roberts, Dan S. Nivanh, Michael J. Wallans
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Patent number: 10583333Abstract: A golf club head includes a striking face having a face center, a bottom portion, a top portion including an exterior surface, a hosel including an imaginary vertical hosel plane, a forwardmost point, and a rearwardmost point. In an imaginary vertical plane perpendicular to the hosel plane and passing through the face center, the exterior surface includes a path having a first point and a second point rearward of the first point. An imaginary infinite straight line passes through the first point and the second point, but does not penetrate the exterior surface. A segment of the imaginary straight line is delimited by the first point and the second point. A maximum distance between the segment and the exterior surface of the top portion is no greater than 0.70 mm and a distance between the first point and the second point is no less than 22 mm.Type: GrantFiled: October 21, 2016Date of Patent: March 10, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Jimmy H. Kuan, Samuel G. Lacey, Dan S. Nivanh, Nathaniel J. Radcliffe
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Patent number: 10549160Abstract: A golf club includes a striking face, a top portion, a sole portion opposite the top portion, and a shaft assembly. The shaft assembly can include a shaft having a butt end and a tip end, and a shaft sleeve located at the tip end, the shaft sleeve including indicia. The golf club may further include a hosel extending from the top portion, and the hosel can include a sidewall, a tip end, an internal bore for receiving the shaft assembly, a hosel axis, and an aperture extending through, and circumscribed by, the sidewall such that the indicia of the shaft sleeve corresponds with the aperture. The sidewall circumscribing the aperture may include an inner surface having a first thickness T1 in a radial direction relative the hosel axis and a chamfered edge having a second thickness T2 in the radial direction, T1/T2 being between approximately 3 and 7.33.Type: GrantFiled: March 4, 2016Date of Patent: February 4, 2020Assignee: SUMITOMO RUBBER INDUSTRIES LTD.Inventor: Dan S. Nivanh
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Publication number: 20190381371Abstract: A method comprising, in a striking face of a golf club head, the striking face being formed of a first material having a first hardness, creating a plurality of initial grooves, the initial grooves having a first cross-sectional area (A1) and a first pitch (P1) such that A1/P1>0.0030 in. The method continues with modifying the initial grooves at least by positioning a second material in each of the plurality of initial grooves, the second material having a second hardness that is less than the first hardness, such that the first material and the second material form a plurality of final grooves each having a second cross-sectional area (A2) and a second pitch (P2) such that A2/P2<0.0030 in.Type: ApplicationFiled: July 25, 2019Publication date: December 19, 2019Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Patrick RIPP, Dan S. NIVANH, Mika BECKTOR, Jesse D. SUKMAN
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Patent number: 10456641Abstract: A weight member for removable attachment to a weight port of a golf club head is provided. The weight member comprises a head that has a tool mating port for operatively receiving a portion of a fastening tool. The weight member further comprises a shaft that is associated with the head such that the shaft terminates at an end surface. The shaft has a threaded external surface and a non-threaded internal bore that extends from the end surface.Type: GrantFiled: July 18, 2018Date of Patent: October 29, 2019Assignee: SRI SPROTS LIMITEDInventors: Dan S. Nivanh, Nathaniel J. Radcliffe, Jimmy H. Kuan
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Patent number: 10434379Abstract: A golf club head according to one or more aspects of the present invention may include a face portion or strike-face wall comprising a top inner boundary, an intermediate inner boundary, and a bottom inner boundary having a bottom-inner-boundary toe portion and a bottom-inner-boundary heel portion. The strike-face wall may further include a first uniform-thickness region, adjoining the top inner boundary, and a variable-thickness region adjoining the uniform-thickness region and a majority of the bottom inner boundary. In another example, the variable-thickness may adjoin a majority of the top inner boundary and the uniform-thickness region may adjoin a majority of the bottom inner boundary.Type: GrantFiled: December 14, 2016Date of Patent: October 8, 2019Assignee: SRI SPORTS LIMITEDInventors: Jeff D. Brunski, Samuel G. Lacey, Dan S. Nivanh, Nathaniel J. Radcliffe, John J. Rae, Mark Blumenkrantz, Rory C. Stewart, Michael J. Wallans
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Patent number: 10406409Abstract: A method comprising, in a striking face of a golf club head, the striking face being formed of a first material having a first hardness, creating a plurality of initial grooves, the initial grooves having a first cross-sectional area (A1) and a first pitch (P1) such that A1/P1>0.0030 in. The method continues with modifying the initial grooves at least by positioning a second material in each of the plurality of initial grooves, the second material having a second hardness that is less than the first hardness, such that the first material and the second material form a plurality of final grooves each having a second cross-sectional area (A2) and a second pitch (P2) such that A2/P2<0.0030 in.Type: GrantFiled: February 13, 2017Date of Patent: September 10, 2019Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Patrick Ripp, Dan S. Nivanh, Mika Becktor, Jesse D. Sukman
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Publication number: 20180318679Abstract: A weight member for removable attachment to a weight port of a golf club head is provided. The weight member comprises a head that has a tool mating port for operatively receiving a portion of a fastening tool. The weight member further comprises a shaft that is associated with the head such that the shaft terminates at an end surface. The shaft has a threaded external surface and a non-threaded internal bore that extends from the end surface.Type: ApplicationFiled: July 18, 2018Publication date: November 8, 2018Applicant: DUNLOP SPORTS CO. LTD.Inventors: Dan S. NIVANH, Nathaniel J. RADCLIFFE, Jimmy H. KUAN
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Publication number: 20180241854Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.Type: ApplicationFiled: February 28, 2018Publication date: August 23, 2018Applicant: SRI SPORTS LIMITEDInventors: John J. RAE, Nathaniel J. RADCLIFFE, Daniel J. STONE, Trent E. GARNER, Brad S. HOOLEY, Robert J. HORACEK, Sam G. LACEY, Jeff D. BRUNSKI, Kevin SCHAEFFER, Scott A. CARLYLE, Stephen C. CHIEN, Craig R. SCHNELL, Douglas E. ROBERTS, Dan S. NIVANH, Michael J. WALLANS
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Patent number: 10052537Abstract: A weight member for removable attachment to a weight port of a golf club head is provided. The weight member comprises a head that has a tool mating port for operatively receiving a portion of a fastening tool. The weight member further comprises a shaft that is associated with the head such that the shaft terminates at an end surface. The shaft has a threaded external surface and a non-threaded internal bore that extends from the end surface.Type: GrantFiled: January 25, 2017Date of Patent: August 21, 2018Assignee: SRI SPORTS LIMITEDInventors: Dan S. Nivanh, Nathaniel J. Radcliffe, Jimmy H. Kuan
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Publication number: 20180229088Abstract: A method comprising, in a striking face of a golf club head, the striking face being formed of a first material having a first hardness, creating a plurality of initial grooves, the initial grooves having a first cross-sectional area (A1) and a first pitch (P1) such that A1/P1>0.0030 in. The method continues with modifying the initial grooves at least by positioning a second material in each of the plurality of initial grooves, the second material having a second hardness that is less than the first hardness, such that the first material and the second material form a plurality of final grooves each having a second cross-sectional area (A2) and a second pitch (P2) such that A2/P2<0.0030 in.Type: ApplicationFiled: February 13, 2017Publication date: August 16, 2018Applicant: DUNLOP SPORTS CO. LTD.Inventors: Patrick RIPP, Dan S. NIVANH, Mika BECKTOR, Jesse D. SUKMAN
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Patent number: 10010769Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.Type: GrantFiled: December 20, 2016Date of Patent: July 3, 2018Assignee: SRI SPORTS LIMITEDInventors: John J. Rae, Nathaniel J. Radcliffe, Daniel J. Stone, Trent E. Garner, Brad S. Hooley, Robert J. Horacek, Sam G. Lacey, Jeff D. Brunski, Kevin Schaeffer, Scott A. Carlyle, Stephen C. Chien, Craig R. Schnell, Douglas E. Roberts, Dan S. Nivanh, Michael J. Wallans
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Publication number: 20180178093Abstract: A golf club head includes a main body having a top portion, a bottom portion, a striking face, and an interior surface. A weight member is coupled to the interior surface of the main body. In an imaginary vertical plane that passes through the weight member, the interior surface of the main body comprises a first point and a second point. An imaginary line passes through the first point and the second point. A first imaginary boundary line and a second imaginary boundary line, both passing through the weight member and being perpendicular to the imaginary line, pass through the first point and the second point, respectively. Between the first point and the second point, the interior surface of the main body has an irregularity factor of at least 1.2 and the weight member comprises a distribution factor of at most 1.0 and a conformity factor of at most 0.07.Type: ApplicationFiled: February 22, 2018Publication date: June 28, 2018Applicant: SRI SPORTS LIMITEDInventors: Sam G. LACEY, Dan S. NIVANH, Nathaniel J. RADCLIFFE, Dustin J. BREKKE
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Patent number: 9931547Abstract: A golf club head includes a main body having a top portion, a bottom portion, a striking face, and an interior surface. A weight member is coupled to the interior surface of the main body. In an imaginary vertical plane that passes through the weight member, the interior surface of the main body comprises a first point and a second point. An imaginary line passes through the first point and the second point. A first imaginary boundary line and a second imaginary boundary line, both passing through the weight member and being perpendicular to the imaginary line, pass through the first point and the second point, respectively. Between the first point and the second point, the interior surface of the main body has an irregularity factor of at least 1.2 and the weight member comprises a distribution factor of at most 1.0 and a conformity factor of at most 0.07.Type: GrantFiled: June 16, 2014Date of Patent: April 3, 2018Assignee: SRI SPORTS LIMITEDInventors: Sam G. Lacey, Dan S. Nivanh, Nathaniel J. Radcliffe, Dustin J. Brekke