Patents by Inventor Kimiaki Nakamura

Kimiaki Nakamura 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: 20220236598
    Abstract: Provided is a polymer dispersed liquid crystal display device including: a pair of substrates including an electrode on at least one substrate; and a composite layer disposed between the pair of substrates. The composite layer includes a liquid crystal component and a polymer network constituted by a cured product of a photopolymerizable liquid crystal compound, and is in a transparent state when no voltage is applied and in a scattering state when a voltage is applied, and the polymer network has a helical structure with a number of turns of from one to less than eight in the composite layer.
    Type: Application
    Filed: January 19, 2022
    Publication date: July 28, 2022
    Inventors: Koji MURATA, Kimiaki NAKAMURA, Mariko HONDA, Tadashi HASEGAWA, Kazutaka HANAOKA, Yasuhiro HASEBA, Shinji SHIMADA, Atsuko KANASHIMA
  • Patent number: 10930226
    Abstract: A liquid crystal display device is manufactured at a low cost. In the liquid crystal display device, three sub-pixel electrodes are connected by inter-electrode connection portions to form one pixel electrode. One TFT is connected to the pixel electrode. A screen of a liquid crystal display panel is divided into n (n?2) of areas. Gate signal lines G of each divided area are scanned simultaneously one line at a time in each divided area. A backlight device emits light after completion of the scanning of each divided area.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: February 23, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidefumi Yoshida, Kazutaka Hanaoka, Takahiro Sasaki, Kimiaki Nakamura
  • Patent number: 10741135
    Abstract: A liquid crystal display device includes sub-pixel electrodes respectively provided to three sub-pixels, and an interelectrode connection portion that connects sub-pixel electrodes adjacent to each other among the sub-pixel electrodes. The interelectrode connection portion is provided in a position where boundaries of liquid crystal alignment directions of sub-pixels adjacent to each other are connected.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 11, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro Sasaki, Hidefumi Yoshida, Kazutaka Hanaoka, Kimiaki Nakamura
  • Publication number: 20200201091
    Abstract: A liquid crystal display panel including a first substrate, a liquid crystal layer, and a second substrate, the first substrate including in the following order to a liquid crystal layer side: a first electrode, an insulating layer, and a second electrode provided with an aperture, the liquid crystal layer containing liquid crystal molecules homogeneously aligned in a no-voltage-applied state, the aperture having an outline including a first outline portion and a second outline portion which are at different directions to each other in each of pixels, the liquid crystal display panel further including a rib protruding to the liquid crystal layer side and disposed between the first outline portion and the second outline portion on one or both of a liquid crystal layer-side surface of the first substrate and a liquid crystal layer-side surface of the second substrate.
    Type: Application
    Filed: May 14, 2018
    Publication date: June 25, 2020
    Inventors: KIMIAKI NAKAMURA, TAKASHI KATAYAMA, TAKAHIRO SASAKI, SHINPEI HIGASHIDA, KAZUTAKA HANAOKA, HIDEFUMI YOSHIDA
  • Publication number: 20200160799
    Abstract: A liquid crystal display device is manufactured at a low cost. In the liquid crystal display device, three sub-pixel electrodes are connected by inter-electrode connection portions to form one pixel electrode. One TFT is connected to the pixel electrode. A screen of a liquid crystal display panel is divided into n (n?2) of areas. Gate signal lines G of each divided area are scanned simultaneously one line at a time in each divided area. A backlight device emits light after completion of the scanning of each divided area.
    Type: Application
    Filed: April 17, 2018
    Publication date: May 21, 2020
    Inventors: HIDEFUMI YOSHIDA, KAZUTAKA HANAOKA, TAKAHIRO SASAKI, KIMIAKI NAKAMURA
  • Publication number: 20200019022
    Abstract: A liquid crystal display device (100) includes a pair of substrates (11, 21), a liquid crystal layer (30) sandwiched between the pair of substrates (11, 21), an alignment film (12) disposed between the liquid crystal layer (30) and at least one substrate (11), and an alignment-sustaining layer (40) disposed between the alignment film (12) and the liquid crystal layer (30) and regulating the tilt direction of at least liquid crystal molecules close to the alignment film (12) among the liquid crystal molecules constituting the liquid crystal layer (30).
    Type: Application
    Filed: March 27, 2018
    Publication date: January 16, 2020
    Inventors: KIMIAKI NAKAMURA, MASANOBU MIZUSAKI, TAKASHI KATAYAMA
  • Publication number: 20190295482
    Abstract: A liquid crystal display device includes sub-pixel electrodes respectively provided to three sub-pixels, and an interelectrode connection portion that connects sub-pixel electrodes adjacent to each other among the sub-pixel electrodes. The interelectrode connection portion is provided in a position where boundaries of liquid crystal alignment directions of sub-pixels adjacent to each other are connected.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 26, 2019
    Inventors: TAKAHIRO SASAKI, HIDEFUMI YOSHIDA, KAZUTAKA HANAOKA, KIMIAKI NAKAMURA
  • Publication number: 20190187522
    Abstract: The liquid crystal display device including: a first substrate; a liquid crystal layer; and a second substrate, the first substrate including a first electrode, and a second electrode, the liquid crystal molecules being aligned in a direction parallel to the first substrate with no voltage applied, the second electrode being provided with openings, the openings each having a long shape with two or more wide portions and one or more narrow portions, the two or more wide portions and the one or more narrow portions in each of the openings alternating with each other in a lengthwise direction of the opening, each of the wide portions of one of adjacent two openings being adjacent to one of the narrow portions of the other of the adjacent two openings, each of the narrow portions of the one opening being adjacent to one of the wide portions of the other opening.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 20, 2019
    Inventors: TAKASHI KATAYAMA, SHINPEI HIGASHIDA, TAKAHIRO SASAKI, KAZUTAKA HANAOKA, KIMIAKI NAKAMURA, HIDEFUMI YOSHIDA, SHINJI SHIMADA
  • Patent number: 10247247
    Abstract: A spline connection structure includes a shaft portion having teeth with crowned tooth surfaces formed at equal intervals on an outer circumferential surface and a cylindrical portion having grooves into which the teeth of the shaft portion are fitted formed on an inner circumferential surface are connected. Two adjacent tooth surfaces facing each other are bent while maintaining a constant distance therebetween in a tooth width direction when viewed from a diameter direction of the shaft portion.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: April 2, 2019
    Assignee: IHI Corporation
    Inventors: Nobutaka Yanagidani, Daigo Yoneda, Norimasa Taga, Junichi Enomoto, Kimiaki Nakamura
  • Publication number: 20190086736
    Abstract: An object is to provide a liquid crystal display device having long-term stability in a pretilt direction. A liquid crystal display device includes: a pair of substrates; a liquid crystal layer sandwiched between the pair of substrates; alignment films disposed between the liquid crystal layer and the pair of substrates; and polymer layers disposed between the alignment films and the liquid crystal layer. A material for forming the liquid crystal layer is a liquid crystal material. The liquid crystal material contains a liquid crystal compound having a polyphenylene group. A material for forming the alignment film is an alignment film material containing an acrylic resin having a photoreactive functional group. The polymer layer is a polymer of a (meth)acrylate monomer containing an aryl group having no condensed ring structure.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 21, 2019
    Inventors: KIMIAKI NAKAMURA, MASANOBU MIZUSAKI, TAKASHI KATAYAMA
  • Patent number: 9829071
    Abstract: In a wobble removal shaft coupling device including a wobble removal gear having an internal gear with a first central axial line and an external gear meshing with the wobble removal gear and having a second central axial line. The first and second central axial lines are in parallel with and offset from each other, and the external gear teeth are identical in number to the internal gear teeth of the wobble removal gear. At least one of the two sets of the gear teeth are resiliently deformable in a circumferential and/or radial direction so as to allow the two gears to be meshing with each other while permitting an eccentric wobbling movement of the external gear relative to the internal gear without requiring a play or a sliding engagement. The wobble removal shaft coupling device can be incorporated in a hypocycloid reduction gear device.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: November 28, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kimiaki Nakamura, Yoshihiko Higashidani, Koji Ueda
  • Publication number: 20170307023
    Abstract: The present disclosure relates to a spline connection structure in which a shaft portion having teeth with crowned tooth surfaces formed at equal intervals on an outer circumferential surface and a cylindrical portion having grooves into which the teeth of the shaft portion are fitted formed on an inner circumferential surface are connected, wherein two adjacent tooth surfaces facing each other are bent while maintaining a constant distance therebetween in a tooth width direction when viewed from a diameter direction of the shaft portion.
    Type: Application
    Filed: July 11, 2017
    Publication date: October 26, 2017
    Applicant: IHI Corpoation
    Inventors: Nobutaka YANAGIDANI, Daigo YONEDA, Norimasa TAGA, Junichi ENOMOTO, Kimiaki NAKAMURA
  • Publication number: 20160076623
    Abstract: In a wobble removal shaft coupling device including a wobble removal gear having an internal gear with a first central axial line and an external gear meshing with the wobble removal gear and having a second central axial line. The first and second central axial lines are in parallel with and offset from each other, and the external gear teeth are identical in number to the internal gear teeth of the wobble removal gear. At least one of the two sets of the gear teeth are resiliently deformable in a circumferential and/or radial direction so as to allow the two gears to be meshing with each other while permitting an eccentric wobbling movement of the external gear relative to the internal gear without requiring a play or a sliding engagement. The wobble removal shaft coupling device can be incorporated in a hypocycloid reduction gear device.
    Type: Application
    Filed: September 11, 2015
    Publication date: March 17, 2016
    Inventors: Kimiaki Nakamura, Yoshihiko Higashidani, Koji Ueda
  • Patent number: 9201275
    Abstract: A liquid crystal display device including first and second substrates, a liquid crystal layer, a pixel electrode, a counter electrode, a first molecule orientation film formed on the first substrate so as to cover the pixel electrode, and a second molecule orientation film formed on the second substrate so as to cover the counter electrode. The pixel electrode includes first micro-electrode patterns extending in a first direction, second micro-electrode patterns extending in a second direction, third micro-electrode patterns extending in a third direction and fourth micro-electrode patterns extending in a fourth direction, wherein the first, second, third and fourth directions are different from one another.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: December 1, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Takashi Takagi, Hiroyasu Inoue
  • Patent number: 9081239
    Abstract: A liquid crystal display device including first and second substrates, and a liquid crystal layer sealed therebetween. The device also includes a first electrode formed on the first substrate and a second electrode formed on the second substrate; a first molecule orientation film formed on the first substrate so as to cover the first electrode; a second molecule orientation film formed on the second substrate so as to cover the second electrode; a plurality of micro structures associated with at least one of the first and second electrodes; and a plurality of rough structural patterns associated with at least one of the first and second electrodes. At least some of the micro structures extend generally parallel to each other, and the rough structural patterns extend in directions different from directions in which the micro structures extend.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: July 14, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Takashi Takagi, Hiroyasu Inoue
  • Publication number: 20150002770
    Abstract: In a liquid crystal display device, liquid crystal molecules are oriented in a vertical direction to the first substrate and the second substrate by the first molecule orientation film and the second molecule orientation film, respectively, in a non-driving state. A structural pattern is formed so as to extend in a first direction parallel a surface of the liquid crystal layer and so as to form, in a driving state, an electric field periodically changing in a second direction that is parallel to the liquid crystal layer and vertical to the first direction. The liquid crystal molecules substantially tilt in the first direction in the driving state.
    Type: Application
    Filed: September 12, 2014
    Publication date: January 1, 2015
    Inventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Takashi Takagi, Hiroyasu Inoue
  • Patent number: 8797490
    Abstract: A liquid crystal display device including first and second substrates, with a liquid crystal layer sealed therebetween. The device also includes a first electrode formed on the first substrate, a second electrode formed on the second substrate, a first molecule orientation film formed on the first substrate so as to cover the first electrode, a second molecule orientation film formed on the second substrate so as to cover the second electrode, and a plurality of micro structures associated with at least one of the first and second electrodes, wherein at least some of the micro structures extend generally parallel to each other. When a driving voltage is applied between the first and second electrodes, liquid crystal molecules of the liquid crystal layer are oriented such that no dark line occurs in a vicinity of the plurality of micro structures and no dark line occurs between adjacent micro structures.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: August 5, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Hiroyasu Inoue, Takashi Takagi
  • Patent number: 8786808
    Abstract: A liquid crystal display including a pair of substrates; a plurality of electrodes formed in a matrix on one of the pair of substrates, wherein each of the plurality of electrodes includes a plurality of stripe-like portions that define a plurality of spaces therebetween; polymer material and liquid crystal between the pair of substrates; and polymer alignment films which are formed on each of the substrates and are affected by light irradiation and cause alignment of the liquid crystal in predetermined directions. The plurality of stripe-like portions extend in at least two different directions which are not parallel to each other.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: July 22, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takahiro Sasaki, Kazutaka Hanaoka, Tsutomu Seino, Yohei Nakanishi, Seiji Tanuma, Kimiaki Nakamura, Yuichi Inoue, Masakazu Shibasaki, Hideaki Tsuda, Yoshio Koike, Yasutoshi Tasaka, Hidefumi Yoshida, Kunihiro Tashiro
  • Publication number: 20140198274
    Abstract: In a liquid crystal display device, liquid crystal molecules are oriented in a vertical direction to the first substrate and the second substrate by the first molecule orientation film and the second molecule orientation film, respectively, in a non-driving state. A structural pattern is formed so as to extend in a first direction parallel to a surface of the liquid crystal layer and so as to form, in a driving state, an electric field periodically changing in a second direction that is parallel to the liquid crystal layer and vertical to the first direction. The liquid crystal molecules substantially tilt in the first direction in the driving state.
    Type: Application
    Filed: February 3, 2014
    Publication date: July 17, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Takashi Takagi, Hiroyasu Inoue
  • Patent number: 8743036
    Abstract: A liquid crystal display has a pair of substrates with liquid crystal sealed between them. A polymer layer regulates directions in which the liquid crystal molecules tilt. A plurality of gate bus lines and a plurality of drain bus lines are provided on one of the substrates. Color filters and a pixel electrode are provided on the substrate. The pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode. A common electrode is provided on the other substrate. A first and a second thin film transistor are connected to the first sub-pixel electrode. The first thin film transistors is connected to a first gate bus line, and the second thin film transistor is connected to a second bus line.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: June 3, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Sasabayashi, Arihiro Takeda, Hiroyasu Inoue, Kazuya Ueda, Yoshio Koike, Hideaki Tsuda, Yasutoshi Tasaka, Hidefumi Yoshida, Kunihiro Tashiro, Tsuyoshi Kamada, Kimiaki Nakamura