Patents by Inventor Takeo Mitsui

Takeo Mitsui 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: 11940710
    Abstract: According to one embodiment, a light control device includes a first liquid crystal cell including a first liquid crystal layer, a second liquid crystal cell including a second liquid crystal layer, and a polarization conversion element. The first liquid crystal layer and the second liquid crystal layer each includes a first region which scatters a first polarized component and transmits a second polarized component and a second region which transmits the first polarized component and scatters the second polarized component. The polarization conversion element overlaps the first region and the second region, converts the first polarized component into the second polarized component, and converts the second polarized component into the first polarized component.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: March 26, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tae Kurokawa, Takeo Koito, Masashi Mitsui
  • Patent number: 11934082
    Abstract: According to one embodiment, a light control device includes a first substrate including a plurality of first control electrodes disposed in an effective area, and a plurality of feed lines disposed in a peripheral area, a second substrate, and a first liquid crystal layer. The first control electrodes are transparent electrodes. Each of the first control electrodes includes, in the effective area, first segments crossing a first direction at a first angle, second segments crossing the first direction at a second angle, and third segments crossing the first direction at a third angle. The first control electrode is electrically connected to the feed line. The first to third angles are different from each other.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: March 19, 2024
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Masashi Mitsui, Tae Kurokawa
  • Patent number: 11921384
    Abstract: According to one embodiment, a light control device includes a first liquid crystal cell, a second liquid crystal cell, and a polarization conversion element disposed between the first liquid crystal cell and the second liquid crystal cell. One substrate of each of the first liquid crystal cell and the second liquid crystal cell includes an insulating substrate, and first to fourth electrodes arranged on the insulating substrate and formed in a strip shape. The electric potential difference between the first electrode and the second electrode, the electric potential difference between the second electrode and the third electrode, and the electric potential difference between the third electrode and the fourth electrode are different from each other.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: March 5, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Takeo Koito, Tae Kurokawa, Masashi Mitsui
  • Publication number: 20220235928
    Abstract: A heat insulation structure of one embodiment of the present disclosure includes: a heat source; a heat insulating member surrounding the heat source and having an opening; and a shape retaining member retaining a shape of the heat insulating member.
    Type: Application
    Filed: June 10, 2020
    Publication date: July 28, 2022
    Inventors: TOMOYUKI SEKIYA, SHIRO ASASHIMA, TAKEO MITSUI
  • Publication number: 20210235761
    Abstract: A housing and a flavor inhalation device have a new structure. The housing includes a first housing capable of accommodating a heat generating element, a second housing enclosing the first housing, and a heat diffusion member provided in at least a part of space between the first housing and the second housing and having a higher heat conductivity than the first housing and the second housing.
    Type: Application
    Filed: April 21, 2021
    Publication date: August 5, 2021
    Applicant: JAPAN TOBACCO INC.
    Inventors: Kouji TSUKAMOTO, Takeo MITSUI
  • Publication number: 20140057077
    Abstract: An extrusion molding device includes: an extrusion die configured to extrude a molten material; a sizing die configured to shape the material extruded by the extrusion die; and a transfer device configured to follow the material and to be operated, the material passing through the sizing die, and configured to transfer a transfer surface formed as a specular surface to the material.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 27, 2014
    Applicant: Sony Corporation
    Inventors: Hiroyasu Sato, Takuya Toriumi, Takeo Mitsui
  • Publication number: 20130335536
    Abstract: A head mount display used in a state worn on the head of a user is provided. In a worn state, a forehead support 102 comes in contact with the forehead of the user, and an upper band 104 and a lower band 105 of the headband come in contact with the back of the head. That is, the head mount display is worn on the head of the user with a three-point support by the forehead support 102, the upper band 104, and the lower band 105. Thus, unlike a structure similar to glasses whose weight is mainly supported by a nose piece, the head mount display can be worn while easing the strain on the user by distributing the load of the device over the entire head.
    Type: Application
    Filed: March 2, 2012
    Publication date: December 19, 2013
    Applicant: SONY CORPORATION
    Inventors: Jumpei Kura, Takeo Mitsui, Masayuki Sakaguchi