Patents by Inventor Izumi Okamura

Izumi Okamura 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: 11174331
    Abstract: A shock-absorbing sheet comprises a foamed resin layer having a thickness of 200 ?m or less, a void ratio (P0.1) of a plane directional cross section at a thickness of 0.1 T, a void ratio (P0.5) of a plane directional cross section at a thickness of 0.5 T, and a void ratio (P0.9) of a plane directional cross section at a thickness of 0.9 T from one surface of the foamed resin layer each ranging from 10 to 70 area %; and the standard deviation (P?) for an average void ratio found from the void ratio (P0.1), the void ratio (P0.5) and the void ratio (P0.9) ranging from 1.0 to 20.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 16, 2021
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Koji Yachi, Hiroshi Hiraike, Yuuki Hoshiyama, Izumi Okamura, Yasuharu Nagai, Kazuyuki Yahara, Ayaha Oguri
  • Publication number: 20210189032
    Abstract: A shock-absorbing sheet comprises a foamed resin layer having a thickness of 200 ?m or less, a void ratio (P0.1) of a plane directional cross section at a thickness of 0.1 T, a void ratio (P0.5) of a plane directional cross section at a thickness of 0.5 T, and a void ratio (P0.9) of a plane directional cross section at a thickness of 0.9 T from one surface of the foamed resin layer each ranging from 10 to 70 area %; and the standard deviation (P?) for an average void ratio found from the void ratio (P0.1), the void ratio (P0.5) and the void ratio (P0.9) ranging from 1.0 to 20.
    Type: Application
    Filed: September 28, 2018
    Publication date: June 24, 2021
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Koji YACHI, Hiroshi HIRAIKE, Yuuki HOSHIYAMA, Izumi OKAMURA, Yasuharu NAGAI, Kazuyuki YAHARA, Ayaha OGURI
  • Patent number: 5254907
    Abstract: A lighting system for use in a vehicle cabin comprises a first lamp arranged to a roof, a second lamp arranged to a seat, and a third lamp arranged to a door. A demand is generated for providing a predetermined information to a passenger when getting out, and the first, second and third lamps are turned on in response to this demand.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: October 19, 1993
    Assignees: Nissan Motor Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Matsuno, Hitoshi Matsui, Izumi Okamura, Teruaki Shigeta, Yoshinori Tanabe
  • Patent number: 5226711
    Abstract: A lighting system for use in a vehicle cabin comprises four ceiling lamps arranged to a roof at its peripheral portions so as to be above a plane including an eye point of a seat occupant, a first foot lamp arranged to an instrument lower cover at its lower portion to be between the top of a front seat cushion and a floor, and a second foot lamp arranged to be adjacent to a rear seat cushion and between the bottom of a rear seat cushion and the floor. Two set mode selector switches allow selection of a lamp set mode between normal and rest modes.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: July 13, 1993
    Assignees: Nissan Motor Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Matsuno, Hitoshi Matsui, Izumi Okamura, Teruaki Shigeta, Yoshinori Tanabe
  • Patent number: 5206562
    Abstract: A lighting system for use in a vehicle cabin comprises a step lamp arranged to a door, a foot lamp arranged to a seat and a seat lamp arranged to a roof. An ON-OFF circuit turns on the step, foot and seat lamps when the door is opened, and turns off these lamps when the door is closed. An arithmetic circuit controls the step, foot and seat lamps in luminance to obtain a gradual increase in brightness in order of the road and step, the floor and the seat.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: April 27, 1993
    Assignees: Nissan Motor Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Matsuno, Hitoshi Matsui, Izumi Okamura, Teruaki Shigeta, Yoshinori Tanabe
  • Patent number: 5149187
    Abstract: A lighting system for use in a vehicle cabin comprises a plurality of first lamps which are arranged between a roof and a plane including an eye point of a seat occupant for illuminating predetermined surfaces, and at least one second lamp for illuminating a floor. Luminance levels of the predetermined surfaces are controlled by, for example, an illuminance measuring apparatus, a luminance measuring apparatus, and a lighting controller.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: September 22, 1992
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yoshio Matsuno, Hitoshi Matsui, Izumi Okamura, Teruaki Shigeta, Yoshinori Tanabe