Patents by Inventor Katsunobu Mochizuki

Katsunobu Mochizuki 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: 11179605
    Abstract: In order to satisfy at a high level the golf ball flight and control performances relied on by professional golfers and skilled amateurs, this invention provides a multi-piece solid golf ball G having a core 1, a cover 3 and an intermediate layer 2 therebetween wherein the core is formed of a rubber composition that includes an alcohol having a value obtained by dividing the molecular weight of the alcohol by the number of hydroxyl groups thereon which is 70 or less. Also, letting Hc be the JIS-C hardness at the center of the core, H12 be the JIS-C hardness at a position 12 mm from the core center and Ho be the JIS-C hardness at the surface of the core, the core has a hardness profile in which these hardnesses satisfy fixed relationships defined by specific formulas.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: November 23, 2021
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Akira Kimura, Toru Ogawana, Katsunobu Mochizuki, Jun Shindo
  • Publication number: 20210268541
    Abstract: An object of the present invention is to provide a method for producing a coated material by using a composition that can be spray-coated, and that does not run downward after coating (i.e., rheology controllable). The method for producing a coated material includes step (1) of applying an electron beam-curable composition containing an ethylenically unsaturated group-containing compound to a substrate to form a coating film that has a surface viscosity of 1 Pa·s to 300 Pa·s as measured based on an electric-field pickup method, step (2) of drying the coating film obtained in step (1) to form a dry coating film when the electron beam-curable composition contains a volatile component, and step (3) of irradiating the substrate that has the coating film obtained in step (1) or the dry coating film obtained in step (2) with electron beams in an inert gas atmosphere to form a cured coating film.
    Type: Application
    Filed: December 21, 2020
    Publication date: September 2, 2021
    Applicants: TOAGOSEI CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Eiichi Okazaki, Kazuki Ofusa, Katsunobu Mochizuki, Shinya Kanbe, Nobuaki Koike, Keiji Ambo, Atsuo Nabeshima, Mamoru Kouzaki, Shuji Yomo, Kanji Mori
  • Publication number: 20210220705
    Abstract: In order to satisfy at a high level the golf ball flight and control performances relied on by professional golfers and skilled amateurs, this invention provides a multi-piece solid golf ball G having a core 1, a cover 3 and an intermediate layer 2 therebetween wherein the core is formed of a rubber composition that includes an alcohol having a value obtained by dividing the molecular weight of the alcohol by the number of hydroxyl groups thereon which is 70 or less. Also, letting Hc be the JIS-C hardness at the center of the core, H12 be the JIS-C hardness at a position 12 mm from the core center and Ho be the JIS-C hardness at the surface of the core, the core has a hardness profile in which these hardnesses satisfy fixed relationships defined by specific formulas.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 22, 2021
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Akira KIMURA, Toru Ogawana, Katsunobu Mochizuki, Jun Shindo
  • Publication number: 20210178231
    Abstract: In a golf ball having a cover layer that is formed of a resin material composed primarily of polyurethane or polyurea, the cover layer includes a colored surface portion having a visible light transmittance of at least 0.6%. A method for producing the golf ball includes the steps of forming the cover layer over a core or other target sphere and providing the colored surface portion by coloring the surface of the cover layer. The cover layer which includes the colored surface portion has a visible light transmittance of at least 0.6%. The golf ball has a surface with a distinctive aesthetic appearance and retains both a good spin performance and a good scuff resistance, making it useful as a ball for professional and skilled amateur golfers.
    Type: Application
    Filed: November 18, 2020
    Publication date: June 17, 2021
    Applicant: Bridgestone Sports Co., Ltd.
    Inventor: Katsunobu MOCHIZUKI
  • Publication number: 20210154533
    Abstract: In a golf ball having a rubber core of at least one layer and an inner cover layer and outer cover layer which encase the core, the inner cover layer is formed of a resin composition that includes (A) a polyurethane or polyurea and (B) a thermoplastic polyester elastomer, which resin composition has a Shore D hardness of 52 or less and a rebound resilience of at least 50%, and the outer cover layer is formed of a resin composition which includes a polyurethane or polyurea of the same type as component (A) or of a different type. This ball has an improved rebound, an optimal spin rate on approach shots and thus a good controllability, and an excellent durability.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 27, 2021
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Masahiro YAMABE, Katsunobu Mochizuki
  • Patent number: 10994174
    Abstract: A resin composition for golf balls is made of (A) polyurethane or polyurea and (B) a styrene resin material, component (B) being included in an amount of 0.5 to 50 parts by weight per 100 parts by weight of component (A). In a golf ball having a core and a cover of one or more layer encasing the core, at least one cover layer is formed of this resin composition. The resin composition is especially useful as a golf ball cover material because the ball does not fly too far and is easier to control on approach shots, yet does not sacrifice distance on shots with a driver.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: May 4, 2021
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Katsunobu Mochizuki, Masahiro Yamabe
  • Patent number: 10905918
    Abstract: A golf ball having a core and a cover that is formed of a resin composition which includes (A) a polyurethane or a polyurea and (B) a styrenic resin material, when dropped from a height of 3 m and made to collide with a metal plate, has velocities 200 ms before and 200 ms after contact that satisfy the condition: (incident velocity)?(rebound velocity)?0.80 m/s. The ball has a good controllability on approach shots without a loss in the distance achieved on shots with a driver, and thus is particularly useful to professional golfers and skilled amateurs.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: February 2, 2021
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Akira Kimura, Katsunobu Mochizuki, Masahiro Yamabe
  • Patent number: 10888740
    Abstract: A resin composition for golf balls includes specific amounts of (A) polyurethane or polyurea and (B) an oxazoline group-containing acrylic polymer or an oxazoline group-containing styrene polymer. A golf ball having a core encased by a cover of one or more layers, wherein at least one cover layer is formed of this resin composition, exhibits a good adhesion between adjoining layers, enabling the ball to achieve a high scuff resistance without lowering the initial velocity of the ball.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: January 12, 2021
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Katsunobu Mochizuki, Masahiro Yamabe, Atsushi Namba
  • Publication number: 20200406104
    Abstract: In a golf ball having a core of at least one layer and a cover of one or more layer encasing the core, at least one layer of the cover is formed of a resin composition that includes (I) a polyurethane or a polyurea and (II) an aromatic vinyl elastomer which together satisfy certain specific conditions. The golf ball has an excellent controllability on approach shots and is also able to maintain a good scuff resistance.
    Type: Application
    Filed: June 9, 2020
    Publication date: December 31, 2020
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Masahiro Yamabe, Katsunobu Mochizuki
  • Publication number: 20200368586
    Abstract: The invention provides a golf ball resin composition that includes (A) an aromatic vinyl elastomer and (B) a polyurethane or a polyurea, the amount of component (A) being 50 parts by weight or less per 100 parts by weight of component (B), and also provides a golf ball in which at least one cover layer is formed of this resin composition. The resin composition is particularly useful as a golf ball cover material because golf balls in which it is used do not fly too far and have a good controllability on approach shots, and moreover maintain a good scuff resistance and moldability without a loss of distance on shots with a driver.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 26, 2020
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Katsunobu Mochizuki, Masahiro Yamabe
  • Publication number: 20200306594
    Abstract: In order to satisfy at a high level the golf ball flight and control performances relied on by professional golfers and skilled amateurs, this invention provides a multi-piece solid golf ball G having a core 1, a cover 3 and an intermediate layer 2 therebetween wherein the core is formed of a rubber composition that includes an alcohol having a value obtained by dividing the molecular weight of the alcohol by the number of hydroxyl groups thereon which is 70 or less. Also, letting Hc be the JIS-C hardness at the center of the core, H12 be the JIS-C hardness at a position 12 nun from the core center and Ho be the JIS-C hardness at the surface of the core, the core has a hardness profile in which these hardnesses satisfy fixed relationships defined by specific formulas.
    Type: Application
    Filed: May 21, 2020
    Publication date: October 1, 2020
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Akira KIMURA, Toru OGAWANA, Katsunobu MOCHIZUKI, Jun SHINDO
  • Patent number: 10722760
    Abstract: A resin composition for golf balls is made of (A) polyurethane or polyurea and (B) an acrylic resin or a methacrylic resin, component (B) being included in an amount of from 0.5 to 50 parts by weight per 100 parts by weight of component (A). In a golf ball having a core and a cover of one or more layer encasing the core, at least one cover layer is formed of this resin composition. The resin composition is especially useful as a golf ball cover material because it makes it possible to achieve a higher ball initial velocity on shots with a driver and a lower ball initial velocity on approach shots.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: July 28, 2020
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Katsunobu Mochizuki, Masahiro Yamabe
  • Patent number: 10695618
    Abstract: In order to satisfy at a high level the golf ball flight and control performances relied on by professional golfers and skilled amateurs, this invention provides a multi-piece solid golf ball G having a core 1, a cover 3 and an intermediate layer 2 therebetween wherein the core is formed of a rubber composition that includes a lower alcohol having a molecular weight below 200. Also, letting Hc be the JIS-C hardness at the center of the core, H12 be the JIS-C hardness at a position 12 mm from the core center and Ho be the JIS-C hardness at the surface of the core, the core has a hardness profile in which these hardnesses satisfy fixed relationships defined by specific formulas.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: June 30, 2020
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Akira Kimura, Toru Ogawana, Katsunobu Mochizuki, Jun Shindo
  • Publication number: 20200197753
    Abstract: In a golf ball having a core of at least one layer and a cover encasing the core, the cover is formed of a resin composition composed primarily of a polyurethane or a polyurea. Letting HMa (N/mm2) be the Martens hardness of the cover measured at a position 0.3 mm toward the center of the ball from the cover surface and ?Ita (%) be the elastic recovery of the cover, HMa and ?Ita satisfy the following conditions: (1) ?Ita??1.16×HMa+79, (2) 10.0?HMa?38.0, and (3) 40??Ita?80. The ball has an excellent spin performance on approach shots and an excellent scuff resistance.
    Type: Application
    Filed: November 25, 2019
    Publication date: June 25, 2020
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Masahiro YAMABE, Katsunobu MOCHIZUKI
  • Publication number: 20200199321
    Abstract: A foam composition that includes a polymer material such as polyurethane or polyurea and a leachable water-soluble fine powder is provided. This composition can he used in a relatively simple process to obtain a foam body (porous body) that is uniform only at the surface or uniform throughout. The foam body can be suitably used as a golf ball member in golf balls required to have good controllability on approach shots. Also provided is a method for producing a foam member, which method includes the steps of to molding the foam composition to obtain a solid molded body, and then leaching out and removing the water-soluble fine powder so as to obtain a foam-molded body.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Applicant: Bridgestone Sports Co., Ltd.
    Inventor: Katsunobu MOCHIZUKI
  • Publication number: 20200179766
    Abstract: A golf ball having a core and a cover that is formed of a resin composition which includes (A) a polyurethane or a polyurea and (B) a styrenic resin material, when dropped from a height of 3 m and made to collide with a metal plate, has velocities 200 ms before and 200 ms after contact that satisfy the condition: (incident velocity)?(rebound velocity)?0.80 m/s. The ball has a good controllability on approach shots without a loss in the distance achieved on shots with a driver, and thus is particularly useful to professional golfers and skilled amateurs.
    Type: Application
    Filed: November 21, 2019
    Publication date: June 11, 2020
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Akira KIMURA, Katsunobu MOCHIZUKI, Masahiro YAMABE
  • Publication number: 20200078641
    Abstract: A resin composition for golf balls includes specific amounts of (A) polyurethane or polyurea and (B) an oxazoline group-containing acrylic polymer or an oxazoline group-containing styrene polymer. A golf ball having a core encased by a cover of one or more layers, wherein at least one cover layer is formed of this resin composition, exhibits a good adhesion between adjoining layers, enabling the ball to achieve a high scuff resistance without lowering the initial velocity of the ball.
    Type: Application
    Filed: November 19, 2019
    Publication date: March 12, 2020
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Katsunobu Mochizuki, Masahiro Yamabe, Atsushi Namba
  • Patent number: 10543401
    Abstract: A resin composition for golf balls includes specific amounts of (A) polyurethane or polyurea and (B) an oxazoline group-containing acrylic polymer or an oxazoline group-containing styrene polymer. A golf ball having a core encased by a cover of one or more layers, wherein at least one cover layer is formed of this resin composition, exhibits a good adhesion between adjoining layers, enabling the ball to achieve a high scuff resistance without lowering the initial velocity of the ball.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: January 28, 2020
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Katsunobu Mochizuki, Masahiro Yamabe, Atsushi Namba
  • Publication number: 20190388735
    Abstract: In a resin composition for golf balls that includes, as a primary ingredient, a polyurethane or polyurea, letting P1 be the absorbance peak height near a wave number of 697 cm?1 and P2 be the absorbance peak height near a wave number of 1512 cm?1 in the infrared absorption spectrum of the composition measured by ATR/FT-IR spectroscopy, the ratio P1/P2 is from 0.03 to 2.10. When used as a cover material in golf balls having a core and a cover of one or more layer, the resin composition keeps the ball from flying too far on approach shots and also gives the ball a good controllability without sacrificing distance on shots with a driver.
    Type: Application
    Filed: April 26, 2019
    Publication date: December 26, 2019
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Katsunobu MOCHIZUKI, Masahiro YAMABE
  • Publication number: 20190290971
    Abstract: In order to satisfy at a high level the golf ball flight and control performances relied on by professional golfers and skilled amateurs, this invention provides a multi-piece solid golf ball G having a core 1, a cover 3 and an intermediate layer 2 therebetween wherein the core is formed of a rubber composition that includes a lower alcohol having a molecular weight below 200. Also, letting Hc be the JIS-C hardness at the center of the core, H12 be the JIS-C hardness at a position 12 mm from the core center and Ho be the JIS-C hardness at the surface of the core, the core has a hardness profile in which these hardnesses satisfy fixed relationships defined by specific formulas.
    Type: Application
    Filed: April 15, 2019
    Publication date: September 26, 2019
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Akira KIMURA, Toru OGAWANA, Katsunobu MOCHIZUKI, Jun SHINDO