Patents by Inventor Takayoshi Hironaka

Takayoshi Hironaka 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: 9776459
    Abstract: An object of the present invention is to provide a pneumatic tire capable of significantly increasing the possibility that the tire can be recycled as a base tire for a retreaded tire without so much sacrificing a product life of the tire prior to retreading.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: October 3, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takayoshi Hironaka, Masayuki Kurebayashi
  • Patent number: 9566830
    Abstract: A pneumatic tire adapted to effectively suppress temperature rise of a tread portion during loaded rolling of the tire, and sufficiently suppress failure of the tread portion due to the temperature rise. The tread portion of the pneumatic tire extends between both tread ends and has a tread surface with lug grooves. Each lug groove extends in a tire width direction and has an opening at its one end to a buttress that extends from the tread end radially inwards of the tire. The buttress has a surface with a projection on one side, in a tire circumferential direction, of the buttress-side opening of the lug groove to protrude in the tire width direction. The projection has a radially outer end in a radially outer side than a radially inner end of the buttress-side opening of the lug groove.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: February 14, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takayoshi Hironaka, Yuki Kawakami
  • Publication number: 20150007918
    Abstract: A pneumatic tire adapted to effectively suppress temperature rise of a tread portion during loaded rolling of the tire, and sufficiently suppress failure of the tread portion due to the temperature, rise. The tread portion of the pneumatic tire extends between both tread ends and has a tread surface with lug grooves. Each lug groove extends in a tire width direction and has an opening at its one end to a buttress that extends from the tread end radially inwards of the tire. The buttress has a surface with a projection on one side, in a tire circumferential direction, of the buttress-side opening of the lug groove to protrude in the tire width direction. The projection has a radially outer end in a radially outer side than a radially inner end of the buttress-side opening of the lug groove.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 8, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takayoshi Hironaka, Yuki Kawakami
  • Publication number: 20140246134
    Abstract: An object of the present invention is to provide a pneumatic tire capable of significantly increasing the possibility that the tire can be recycled as a base tire for a retreaded tire without so much sacrificing a product life of the tire prior to retreading.
    Type: Application
    Filed: September 8, 2011
    Publication date: September 4, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takayoshi Hironaka, Masayuki Kurebayashi
  • Patent number: 7874205
    Abstract: A bonded patch is bonded on a surface of an inner liner. A first patch wall having a first wall surface for restraining a movement of an electronic device main body in one direction is provided integrally with the bonded patch so as to project toward a tire center. A second patch wall having a second wall surface for restraining a movement of an electronic device main body in another direction is provided integrally with the bonded patch so as to project toward the tire center. A connecting segment is provided between the first patch wall and the second patch wall with bridging them for engaging a top of the electronic device main body. A crack occurrence on the mounting structure is prevented by deconcentrating a force applied on an electronic device to overall of the mounting structure to restrain an intensive stress concentration on the mounting structure.
    Type: Grant
    Filed: December 25, 2006
    Date of Patent: January 25, 2011
    Assignee: Bridgestone Corporation
    Inventor: Takayoshi Hironaka
  • Publication number: 20090266153
    Abstract: A bonded patch is bonded on a surface of an inner liner. A first patch wall having a first wall surface for restraining a movement of an electronic device main body in one direction is provided integrally with the bonded patch so as to project toward a tire center. A second patch wall having a second wall surface for restraining a movement of an electronic device main body in another direction is provided integrally with the bonded patch so as to project toward the tire center. A connecting segment is provided between the first patch wall and the second patch wall with bridging them for engaging a top of the electronic device main body. A crack occurrence on the mounting structure is prevented by deconcentrating a force applied on an electronic device to overall of the mounting structure to restrain an intensive stress concentration on the mounting structure.
    Type: Application
    Filed: December 25, 2006
    Publication date: October 29, 2009
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Takayoshi Hironaka