Patents by Inventor Kai HAYASHI

Kai HAYASHI 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: 20240090544
    Abstract: A novel method for producing a powder of a dried fruit is proposed. A method for producing a dried fruit powder includes: a water absorption step of causing a dried fruit to absorb water; a pulverization step of pulverizing the dried fruit after the water absorption step to form a paste in which the dried fruit after the water absorption step is pulverized so as to have a predetermined size; and a step of drying and powderizing the paste after the pulverization step.
    Type: Application
    Filed: February 14, 2020
    Publication date: March 21, 2024
    Applicant: NIKKEN FOODS CO., LTD.
    Inventors: Yoshichika HAYASHI, Kai SUGIYAMA, Siddhartha Shankar DAS
  • Patent number: 11826615
    Abstract: An object of the present invention is to provide a cured product of a golf ball rubber composition imparting excellent durability. The present invention provides a cured product of a golf ball rubber composition cured from a golf ball rubber composition containing (a) a base rubber, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, and (c) a crosslinking initiator, wherein the cured product of the golf ball rubber composition satisfies the following mathematical formula (1): Y<(0.1×X)?1.30??(1) in the formula (1), Y represents an effective crosslinking density of the cured product of the rubber composition (mmol/cc), and X represents an amount of the component (b) with respect to 100 parts by mass of (a) the base rubber (parts by mass).
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: November 28, 2023
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kai Hayashi, Kazuyoshi Shiga, Hikaru Nagakura, Takahiro Shigemitsu
  • Publication number: 20230364476
    Abstract: An object of the present disclosure is to provide a cured product of a golf ball rubber composition imparting excellent durability to a golf ball. The present disclosure provides a cured product of a golf ball rubber composition containing (a) a base rubber, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, and (c) a crosslinking initiator, wherein an effective crosslinking density DC (mmol/cm3) of the cured product and a tensile modulus TM of the cured product at a strain (MPa) from 0.05% to 0.25% satisfy a relationship of TM?333.32×ln(DC)>100.
    Type: Application
    Filed: May 9, 2023
    Publication date: November 16, 2023
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hikaru NAGAKURA, Kazuyoshi SHIGA, Kai HAYASHI
  • Patent number: 11794078
    Abstract: An object of the present invention is to provide a golf ball having excellent shot feeling while maintaining the resilience performance on driver shots. The present invention provides a golf ball comprising a core and at least one cover covering the core, wherein the core is formed from a core rubber composition containing (a) a base rubber, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) a monophenol compound having a substituent group only at p-position.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: October 24, 2023
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hikaru Nagakura, Kazuyoshi Shiga, Kai Hayashi, Takahiro Shigemitsu
  • Patent number: 11684823
    Abstract: An object of the present invention is to provide a golf ball having excellent color development stability. The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a resin composition containing a first base resin and a fluorescent pigment, and the fluorescent pigment has a number-based cumulative median size of 2.5 ?m or more.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: June 27, 2023
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Kai Hayashi, Takahiro Shigemitsu, Kazuyoshi Shiga, Yoshihiko Komori, Toshiyuki Tarao, Masatoshi Yokota
  • Patent number: 11658822
    Abstract: Example methods and system for providing content are disclosed. One or more cryptographic keys may be generated. At least a portion of the one or more cryptographic keys may be used to generate a token associated with a user interface service. The token may indicate a valid origin domain. The token may be provided to a user device, which may use the token to request content from a content service. The content service may authorize the request based on a comparison of the valid origin domain and an origin identifier associated with the request.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 23, 2023
    Assignee: Twitch Interactive, Inc.
    Inventors: Ross Engers, Kai Hayashi
  • Patent number: 11633649
    Abstract: An object of the present invention is to provide a golf ball having excellent durability and good shot feeling. The present invention provides a golf ball comprising a core, wherein a difference (crosslinking density at surface of core-crosslinking density at center of core) between a crosslinking density at a surface of the core and a crosslinking density at a center of the core is more than 1.0×102 mol/m3 and less than 9.0×102 mol/m3, and a hardness difference (Hs?Ho) between Hs and Ho is 13.0 or more and 30.0 or less, and the core satisfies H50?Ho>Hs?H50, wherein Hs (Shore C hardness) is a hardness at the surface of the core, Ho (Shore C hardness) is a hardness at the center of the core, and H50 (Shore C hardness) is a hardness at a midpoint between the center of the core and the surface of the core.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: April 25, 2023
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hikaru Nagakura, Kazuyoshi Shiga, Kai Hayashi, Takahiro Shigemitsu
  • Publication number: 20220370857
    Abstract: An object of the present invention is to provide a golf ball having excellent durability and good shot feeling. The present invention provides a golf ball comprising a core, wherein a difference (crosslinking density at surface of core-crosslinking density at center of core) between a crosslinking density at a surface of the core and a crosslinking density at a center of the core is more than 1.0×102 mol/m3 and less than 9.0×102 mol/m3, and a hardness difference (Hs?Ho) between Hs and Ho is 13.0 or more and 30.0 or less, and the core satisfies H50-Ho>Hs-H50, wherein Hs (Shore C hardness) is a hardness at the surface of the core, Ho (Shore C hardness) is a hardness at the center of the core, and H50 (Shore C hardness) is a hardness at a midpoint between the center of the core and the surface of the core.
    Type: Application
    Filed: July 22, 2022
    Publication date: November 24, 2022
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hikaru NAGAKURA, Kazuyoshi SHIGA, Kai HAYASHI, Takahiro SHIGEMITSU
  • Patent number: 11426635
    Abstract: An object of the present invention is to provide a golf ball having excellent durability and good shot feeling. The present invention provides a golf ball comprising a core, wherein a difference (crosslinking density at surface of core?crosslinking density at center of core) between a crosslinking density at a surface of the core and a crosslinking density at a center of the core is more than 1.0×102 mol/m3 and less than 9.0×102 mol/m3, and a hardness difference (Hs?Ho) between Hs and Ho is 13.0 or more and 30.0 or less, and the core satisfies H50?Ho>Hs?H50, wherein Hs (Shore C hardness) is a hardness at the surface of the core, Ho (Shore C hardness) is a hardness at the center of the core, and H50 (Shore C hardness) is a hardness at a midpoint between the center of the core and the surface of the core.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: August 30, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hikaru Nagakura, Kazuyoshi Shiga, Kai Hayashi, Takahiro Shigemitsu
  • Publication number: 20220193494
    Abstract: An object of the present invention is to provide a golf ball having excellent shot feeling while maintaining the resilience performance on driver shots. The present invention provides a golf ball comprising a core and at least one cover covering the core, wherein the core is formed from a core rubber composition containing (a) a base rubber, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) a monophenol compound having a substituent group only at p-position.
    Type: Application
    Filed: November 8, 2021
    Publication date: June 23, 2022
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hikaru NAGAKURA, Kazuyoshi SHIGA, Kai HAYASHI, Takahiro SHIGEMITSU
  • Patent number: 11358033
    Abstract: An object of the present invention is to provide a golf ball having excellent durability. The present invention provides a golf ball comprising a core and at least one cover layer covering the core, wherein the core is formed from a core rubber composition containing (a) a base rubber, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) a hindered phenol compound, and (b) the co-crosslinking agent and (d) the hindered phenol compound are blended in the core rubber composition such that the following expression (1) is satisfied: 0.04?HF/B?0.35??(1) in the formula (1), HF=a number of OH functional group in one molecule of (d) the hindered phenol compound×an amount of (d) the hindered phenol compound (mole) with respect to 100 parts by mass of (a) the base rubber, and B=an amount of (b) the co-crosslinking agent (mole) with respect to 100 parts by mass of (a) the base rubber.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: June 14, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hikaru Nagakura, Kazuyoshi Shiga, Kai Hayashi, Takahiro Shigemitsu
  • Patent number: 11278768
    Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance and having a good shot feeling on long iron shots. The present invention provides a golf ball comprising a core, at least one intermediate layer covering the core and a cover covering the intermediate layer, wherein the core is formed from a core rubber composition containing (a) a base rubber containing a polybutadiene, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) a terpene-based resin, and a material hardness (Hm) of the intermediate layer is higher than a material hardness (Hc) of the cover, and the material hardness (Hc) of the cover is 50 or more in Shore D hardness.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: March 22, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hironori Takihara, Hikaru Nagakura, Kai Hayashi
  • Patent number: 11266882
    Abstract: An object of the present invention is to provide a golf ball having excellent durability. The present invention provides a golf ball comprising a spherical core composed of an inner core layer and an outer core layer, and at least one cover covering the spherical core, wherein the inner core layer is formed from an inner core layer rubber composition containing (a) a base rubber, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) a terpene-based resin.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: March 8, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kai Hayashi, Kazuyoshi Shiga, Hikaru Nagakura, Takahiro Shigemitsu
  • Patent number: 11185744
    Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance and having a good shot feeling and durability on driver shots. The present invention provides a golf ball comprising a core, at least one intermediate layer covering the core and a cover covering the intermediate layer, wherein the core is formed from a core rubber composition containing (a) a base rubber containing a polybutadiene, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) a terpene-based resin, and a material hardness (Hm) of the intermediate layer and a material hardness (Hc) of the cover satisfy an equation of Hm?Hc.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: November 30, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hironori Takihara, Hikaru Nagakura, Kai Hayashi
  • Patent number: 11167177
    Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance and having a good shot feeling on long iron shots. The present invention provides a golf ball comprising a core, at least one intermediate layer covering the core and a cover covering the intermediate layer, wherein the core is formed from a core rubber composition containing (a) a base rubber containing a polybutadiene, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) a terpene-based resin, and a material hardness (Hm) of the intermediate layer is higher than a material hardness (Hc) of the cover, and the material hardness (Hc) of the cover is less than 50 in Shore D hardness.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: November 9, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hidetaka Inoue, Hironori Takihara, Hikaru Nagakura, Kai Hayashi
  • Publication number: 20210299522
    Abstract: An object of the present invention is to provide a golf ball having excellent durability and good shot feeling. The present invention provides a golf ball comprising a core, wherein a difference (crosslinking density at surface of core?crosslinking density at center of core) between a crosslinking density at a surface of the core and a crosslinking density at a center of the core is more than 1.0×102 mol/m3 and less than 9.0×102 mol/m3, and a hardness difference (Hs?Ho) between Hs and Ho is 13.0 or more and 30.0 or less, and the core satisfies H50?Ho>Hs?H50, wherein Hs (Shore C hardness) is a hardness at the surface of the core, Ho (Shore C hardness) is a hardness at the center of the core, and H50 (Shore C hardness) is a hardness at a midpoint between the center of the core and the surface of the core.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 30, 2021
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hikaru NAGAKURA, Kazuyoshi SHIGA, Kai HAYASHI, Takahiro SHIGEMITSU
  • Publication number: 20210277209
    Abstract: An object of the present invention is to provide a cured product of a golf ball rubber composition for constituting a golf ball having excellent shot feeling on both driver shots and approach shots. The present invention provides a cured product of a golf ball rubber composition, wherein the golf ball rubber composition contains (a) a base rubber, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, and (c) a crosslinking initiator, and a product (hardness×(tan ??80?tan ?0)) obtained by multiplying a slab hardness of the cured product of the golf ball rubber composition in Shore C hardness by a difference (tan ??80?tan ?0) between a loss tangent of the cured product of the golf ball rubber composition at ?80° C. (tan ??80) and a loss tangent of the cured product of the golf ball rubber composition at 0° C. (tan ?0) is 28.0 or more.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 9, 2021
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Kai HAYASHI, Kazuyoshi SHIGA, Takahiro SHIGEMITSU, Hikaru NAGAKURA, Kazuya KAMINO, Hidetaka INOUE
  • Publication number: 20210162268
    Abstract: An object of the present invention is to provide a golf ball having excellent color development stability. The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a resin composition containing a first base resin and a fluorescent pigment, and the fluorescent pigment has a number-based cumulative median size of 2.5 ?m or more.
    Type: Application
    Filed: November 27, 2020
    Publication date: June 3, 2021
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Kai HAYASHI, Takahiro SHIGEMITSU, Kazuyoshi SHIGA, Yoshihiko KOMORI, Toshiyuki TARAO, Masatoshi YOKOTA
  • Patent number: 10940368
    Abstract: An object of the present invention is to provide a golf ball having excellent shot feeling on driver shots. The present invention provides a golf ball comprising a core and at least one cover covering the core, wherein a material for forming the core has a loss tangent difference ? tan ? (tan ??80?tan ??40) of 0.12 or more between a loss tangent tan ??80 at ?80° C. and a loss tangent tan ??40 at ?40° C.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: March 9, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hikaru Nagakura, Kai Hayashi, Kazuyoshi Shiga, Takahiro Shigemitsu
  • Publication number: 20210002459
    Abstract: An object of the present invention is to provide a cured product of a golf ball rubber composition capable of imparting excellent durability to a golf ball. The present invention provides a cured product of a golf ball rubber composition, wherein the golf ball rubber composition contains (a) a base rubber, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, and (c) a crosslinking initiator, and wherein an effective crosslinking density DC (mmol/cm3) of the cured product of the golf ball rubber composition and a tensile elastic modulus TM (MPa) between 0.05% strain and 0.25% strain of the cured product of the golf ball rubber composition satisfy a relation of TM?3.33×In(DC)>(?0.10).
    Type: Application
    Filed: July 2, 2020
    Publication date: January 7, 2021
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Kai HAYASHI, Kazuyoshi SHIGA, Hikaru NAGAKURA, Takahiro SHIGEMITSU