Patents by Inventor Naoko Ishikawa

Naoko Ishikawa 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: 11964516
    Abstract: A pneumatic tire including: a tread portion is in contact with a road surface; and a side wall portion is continuous to the tread portion and positioned inside a tire radial direction of the tread portion. A large region including a plurality of small regions having different arithmetic average roughness outside in a tire width direction is formed on outer surface of the side wall portion. A plurality of large regions are formed along a tire circumferential direction and the tire radial direction. In a boundary line of adjacent large region, small regions having different arithmetic average roughness come into contact with each other.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: April 23, 2024
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Naoko Ishikawa, Yasuo Himuro, Sotaro Iwabuchi
  • Patent number: 11597240
    Abstract: A decorative body includes a first set through a fourth set that are a first solid shape pair at which initial points of respective vectors of a pair of reflecting pieces that are adjacent to one another are adjacent to one another and the respective vectors face in opposite directions, a second solid shape pair at which terminal points of a pair of respective vector of reflecting pieces that are adjacent to one another are adjacent to one another and the respective vectors face in opposite directions, a first solid shape group that is an aggregate in which three or more reflecting pieces at which the orientations of the vectors face in a same direction are continuous, and a third solid shape pair that is a pair formed from two reflecting pieces that do not belong to any of these.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: March 7, 2023
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Publication number: 20220063348
    Abstract: A pneumatic tire including: a tread portion is in contact with a road surface; and a side wall portion is continuous to the tread portion and positioned inside a tire radial direction of the tread portion. A large region including a plurality of small regions having different arithmetic average roughness outside in a tire width direction is formed on outer surface of the side wall portion. A plurality of large regions are formed along a tire circumferential direction and the tire radial direction. In a boundary line of adjacent large region, small regions having different arithmetic average roughness come into contact with each other.
    Type: Application
    Filed: November 29, 2019
    Publication date: March 3, 2022
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Naoko ISHIKAWA, Yasuo HIMURO, Sotaro IWABUCHI
  • Publication number: 20210086565
    Abstract: A decorative body includes a first set through a fourth set that are a first solid shape pair at which initial points of respective vectors of a pair of reflecting pieces that are adjacent to one another are adjacent to one another and the respective vectors face in opposite directions, a second solid shape pair at which terminal points of a pair of respective vector of reflecting pieces that are adjacent to one another are adjacent to one another and the respective vectors face in opposite directions, a first solid shape group that is an aggregate in which three or more reflecting pieces at which the orientations of the vectors face in a same direction are continuous, and a third solid shape pair that is a pair formed from two reflecting pieces that do not belong to any of these.
    Type: Application
    Filed: December 3, 2018
    Publication date: March 25, 2021
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Naoko ISHIKAWA
  • Publication number: 20200376901
    Abstract: A decorative body is configured including plural reflective pieces including a bottom face configured at a surface of a tire side portion and plural inclined faces each inclined in a direction that is not a direction of the bottom face or a direction of a plane perpendicular to the bottom face. The decorative body includes at least three types of the reflective pieces with different vector orientations from each other when the tire side portion is viewed in plan view and when a vector is defined as an inclined face vector running in a direction from a highest location side toward a lowest location side of the inclined face having the smallest incline angle with respect to the tire side portion, with the highest location side of the vector defined as a start point of the vector and the lowest location side of the vector defined as an end point of the vector.
    Type: Application
    Filed: December 3, 2018
    Publication date: December 3, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Naoko ISHIKAWA
  • Publication number: 20200298630
    Abstract: A decorative body is configured including plural reflective pieces including a bottom face configured at a surface of a tire side portion and plural inclined faces each inclined in a direction that is not a direction of the bottom face or a direction of a plane perpendicular to the bottom face. An incline angle of an inclined face having a smallest incline angle with respect to the bottom face of a corresponding reflective piece is set within a range of from 5° to 60° with respect to the bottom face. The decorative body is configured including at least three types of the reflective piece having different vector orientations from each other when the tire side portion is viewed in plan view and when a vector (arrow) is defined as an inclined face vector running in a direction from a highest location side toward a lowest location side of the inclined face having the smallest incline angle.
    Type: Application
    Filed: December 3, 2018
    Publication date: September 24, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Naoko ISHIKAWA
  • Patent number: D562866
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: February 26, 2008
    Assignee: PENTAX Corporation
    Inventor: Naoko Ishikawa
  • Patent number: D703896
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: April 29, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Naoko Ishikawa, Ryoko Kunibu, Akifumi Asano
  • Patent number: D769807
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: October 25, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Patent number: D773987
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: December 13, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Patent number: D791068
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: July 4, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Patent number: D792337
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: July 18, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Patent number: D802526
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: November 14, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Patent number: D803149
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: November 21, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Patent number: D806009
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: December 26, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Patent number: D829163
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: September 25, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Patent number: D880416
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: April 7, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa
  • Patent number: D935991
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: November 16, 2021
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoko Ishikawa