Patents by Inventor Takeo Kawase

Takeo Kawase 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: 8258406
    Abstract: In at least one embodiment of the disclosure, a display device includes a first substrate and a second substrate. A layer is located between the first substrate and the second substrate. The layer includes a first region and a second region. The first region comprises an electrophoretic display layer having electrophoretic particles. The second region is located between the first region and an edge of the first substrate and includes a contact portion. The distance between the first substrate and the second substrate corresponding to the second region is smaller than the distance between the first substrate and the second substrate corresponding to the first region.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: September 4, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takeo Kawase, Hitoshi Yamamoto, Takehisa Saeki, Tsutomu Miyamoto
  • Patent number: 8238020
    Abstract: Provided is a method of producing an electrophoretic display sheet having a substrate and a microcapsule-containing layer disposed on one surface side of the substrate and including microcapsules and a binder holding the microcapsules, the microcapsules each composed of a shell and an electrophoretic dispersion liquid sealed in the shell and containing at least one type of electrophoretic particles. The method includes the step of forming the microcapsule-containing layer where the microcapsules are arranged in a single layer without overlapping in the thickness direction of the substrate by supplying a microcapsule dispersion containing the microcapsules and the binder onto the substrate and then pressurizing the microcapsule dispersion in the thickness direction of the substrate.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: August 7, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Hitoshi Yamamoto, Akira Matsumoto, Takeo Kawase, Hironobu Hashimoto
  • Patent number: 8217857
    Abstract: A display, comprising: a planar display section; a pixel space provided next to a side adjacent to one surface of the display section and encapsulating a plurality of kinds of colorants, each kind having a different color; an accumulation section provided in the pixel space and accumulating the colorants; a separation system that separates a specific kind of colorant from the accumulated colorants in the accumulation section; a transfer system that selects at least one kind of colorant from the separated colorants and transfers this colorant to the side adjacent to the display section of the pixel space. The separation system performs separation utilizing the magnitude of a dielectrophoretic force generated in each colorant upon receipt of an alternating electric field of a specific frequency applied by this system, the magnitude varying depending on the kind of the colorant. A color of at least the one kind of colorant transferred by the transfer system is displayed at the display section.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: July 10, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takeo Kawase, Takayuki Kondo, Hitoshi Fukushima, Yuji Shinohara
  • Patent number: 8188465
    Abstract: A method of manufacturing a semiconductor device includes: forming a plurality of regions extending in a predetermined direction on a substrate; and ejecting a liquid material on the plurality of regions to form an electrically conductive film, wherein the electrically conductive film extends in the same direction as the plurality of regions so as to overlap the plurality of regions.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: May 29, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takeo Kawase, Shinri Sakai
  • Patent number: 8174016
    Abstract: A method of manufacturing a semiconductor device includes: forming, on one surface of a substrate, source electrodes and drain electrodes, a semiconductor layer provided between the source electrodes and the drain electrodes, and a gate insulator layer provided to cover a surface of the semiconductor layer; forming an insulator layer on a surface of the gate insulator layer, the insulator layer having through portions; and forming electrodes on the gate insulator layer around the bottom of the through portions and on the insulator layer in the vicinity of the through portions by a vapor film formation method simultaneously so as not to come into contact with each other, forming gate electrodes by using the electrodes formed on the gate insulator layer, and forming pixel electrodes electrically connected to the source electrodes or the drain electrodes by using the electrodes foamed on the insulator layer.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: May 8, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Takeo Kawase
  • Patent number: 8164822
    Abstract: A display device having a display surface, comprises: a contact particle-containing layer including a wall portion with an inner surface for defining a space, contact particles electrically charged and provided within the space in a contact state that the contact particles are in contact with the inner surface of the wall portion, the contact particles having a hue, and a scattering medium for scattering light or a colored medium having a different hue from the hue of the contact particles which is provided within the space; and a pair of electrodes that, when applied with an electrical voltage, generate electrical fields to act on the contact particles, wherein the display device is configured so that when the electrical voltage is applied to between the pair of electrodes, the contact particles are moved along the inner surface of the wall portion while maintaining the contact state.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: April 24, 2012
    Assignees: Seiko Epson Corporation, Nippon Shokubai Co., Ltd.
    Inventors: Takeo Kawase, Harunobu Komatsu, Hitoshi Yamamoto, Akira Matsumoto, Mitsuo Kushino, Tomoyuki Kuwamoto, Teruki Matsushita
  • Patent number: 8139005
    Abstract: The invention provides a display device (26) including a plurality of discrete display segments (2). Each display segment (2) is provided with a drive circuit for driving the display elements arranged within the display area. The display device may be provided either as a passive, active or direct pixel addressed array. By interconnecting a number of display segments, a large area display can be achieved without the requirement for long electrodes. This reduces the electrical resistance and parasitic capacitance of the addressing electrodes, enabling the display to provide improved luminance in a displayed image and to operate at higher speeds, providing improved resolution. An active matrix addressing scheme can also be implemented using relatively low mobility organic thin film transistors.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: March 20, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Takeo Kawase
  • Patent number: 8120740
    Abstract: A method for producing an active-matrix substrate including a board, pixels, thin-film transistors that switch the pixels, and source lines and gate lines electrically connected to the thin-film transistors includes forming a conduction portion that provides electrical connection between the source lines and the gate lines using an organic conductive material at the same time as forming either the source lines or the gate lines; and breaking the electrical connection provided by the conduction portion.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Soichi Moriya, Takeo Kawase, Tsutomu Miyamoto, Kiyoshi Nakamura
  • Patent number: 7999786
    Abstract: To reduce or prevent metal wirings formed on one substrate and electrodes formed on the other substrate from being shorted. An electrophoretic display in which, a display part including electrophoretic particles electrophoresed by application of an electric field, and an electrophoretic display part including an electrode to apply the electric field to the display part, are bonded to a substrate. The substrate includes a metal wiring including an insulating part disposed at a position that corresponds to at least a part of an edge of the electrode.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: August 16, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Mitsuaki Harada, Takeo Kawase, Soichi Moriya
  • Publication number: 20110175092
    Abstract: The present invention provides an organic semiconductor element which has a low hygroscopic property and whose property is hardly deteriorated with time and an electronic device and electronic equipment each provided with such an organic semiconductor element and having high reliability. The organic semiconductor element of the present invention includes: a source electrode 20a; a drain electrode 20b; a gate electrode 50; a gate insulating layer 40; an organic semiconductor layer 30; and a buffer layer (another insulating layer) 60, wherein at least one of the gate insulating layer 40 and the buffer layer 60 contains an insulating polymer with a main chain having both end portions and including repeating units represented by the following general formula (1) or (2): where R1 and R2 are the same or different and each of R1 and R2 is a divalent linkage group, and Y is an oxygen atom or a sulfur atom.
    Type: Application
    Filed: September 18, 2009
    Publication date: July 21, 2011
    Inventors: Takuro Yasuda, Takeo Kawase, Junichi Karasawa, Kelichi Inoue, Kazushi Omote, Tomoya Arai, Keiko Ando, Yoshinobu Asako
  • Patent number: 7957052
    Abstract: A display device comprises a microcapsule-containing layer including a plurality of microcapsules. A variation of the outer diameters of the microcapsules can be defined by an average value and a CV value. Each of the microcapsules is comprised of: a shell having an inner surface; contact particles electrically charged and provided within the shell in an contact state that the contact particles are in contact with the inner surface of the shell; and a scattering body for scattering light; or a colored particles having a different hue from the hue of the contact particles. The display device further comprises a pair of electrodes that when an electrical voltage is applied to between the pair of electrodes, electrical fields to act on the contact particles are generated. The average value of the outer diameters of the microcapsules is in the range of 20 to 60 ?m, and the CV value of the outer diameters of the microcapsules is 20% or less.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: June 7, 2011
    Assignees: Seiko Epson Corporation, Nippon Shokubai Co., Ltd.
    Inventors: Takeo Kawase, Harunobu Komatsu, Hitoshi Yamamoto, Akira Matsumoto, Mitsuo Kushino, Tomoyuki Kuwamoto, Teruki Matsushita, Hironobu Hashimoto
  • Publication number: 20110080633
    Abstract: Provided is a method of producing an electrophoretic display sheet having a substrate and a microcapsule-containing layer disposed on one surface side of the substrate and including microcapsules and a binder holding the microcapsules, the microcapsules each composed of a shell and an electrophoretic dispersion liquid sealed in the shell and containing at least one type of electrophoretic particles. The method includes the step of forming the microcapsule-containing layer where the microcapsules are arranged in a single layer without overlapping in the thickness direction of the substrate by supplying a microcapsule dispersion containing the microcapsules and the binder onto the substrate and then pressurizing the microcapsule dispersion in the thickness direction of the substrate.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 7, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi YAMAMOTO, Akira MATSUMOTO, Takeo KAWASE, Hironobu HASHIMOTO
  • Publication number: 20110050352
    Abstract: An electric circuit includes: a reference signal generation circuit that generates a reference signal based on a first oscillation signal that is an oscillation signal of a first oscillation circuit that vibrates a first vibrator; and a counter circuit that counts a second oscillation signal that is an oscillation signal of a second oscillation circuit that vibrates a second vibrator based on the reference signal, and outputs a count signal, wherein the count signal is a change of the count value in the second oscillation signal.
    Type: Application
    Filed: July 13, 2010
    Publication date: March 3, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takayuki Kondo, Masayoshi Todorokihara, Yoshihiko Nimura, Takeo Kawase
  • Publication number: 20110032180
    Abstract: A display device is equipped with a laminate portion of a plurality of laminated adsorption particle-containing layers including a first adsorption particle-containing layer having a wall portion defining a space and electrically charged adsorption particles adsorbed to an inner surface of the wall portion, and a second adsorption particle-containing layer including a wall portion defining a space and electrically charged adsorption particles adsorbed to an inner surface of the wall portion and having a hue different from that of the adsorption particles of the first adsorption particle-containing layer: and one or more pairs of electrodes that, when applied with an electrical voltage, generate electric fields to act on the adsorption particles, and characterized in that, upon application of an electrical voltage across the one or more pairs of electrodes, the adsorption particles of each of the absorption particle-containing layers are moved, while being adsorbed to the inner surface of the wall portion, alo
    Type: Application
    Filed: August 4, 2009
    Publication date: February 10, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeo KAWASE, Harunobu KOMATSU, Hitoshi YAMAMOTO, Akira MATSUMOTO, Mitsuo KUSHINO, Tomoyuki KUWAMOTO, Teruki MATSUSHITA
  • Publication number: 20110025681
    Abstract: An electrophoretic display includes: a plurality of spatially divided cells; and plural types of color substances contained in each of the cells wherein a display color is controlled by controlling electrophoresis of the colored substances within the cells, wherein each of a first cell, a second cell and a third cell included in the plurality of cells includes a first color substance corresponding to a mutually differing one of three primary colors in additive color mixing or subtractive color mixing and a second color substance in a relationship of complementary colors with the first color substance, wherein the first cell is controlled to be in a display state by the first color substance, and the second and third cells are controlled to be in a display state by the second color substance, respectively.
    Type: Application
    Filed: March 26, 2010
    Publication date: February 3, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Harunobu KOMATSU, Takeo KAWASE, Masashi KANAI, Kenji FUKASAWA
  • Publication number: 20110019264
    Abstract: In at least one embodiment of the disclosure, a display device includes a first substrate and a second substrate. A layer is located between the first substrate and the second substrate. The layer includes a first region and a second region. The first region comprises an electrophoretic display layer having electrophoretic particles. The second region is located between the first region and an edge of the first substrate and includes a contact portion. The distance between the first substrate and the second substrate corresponding to the second region is smaller than the distance between the first substrate and the second substrate corresponding to the first region.
    Type: Application
    Filed: October 5, 2010
    Publication date: January 27, 2011
    Applicant: Seiko Epson Corporation
    Inventors: Takeo Kawase, Hitoshi Yamamoto, Takehisa Saeki, Tsutomu Miyamoto
  • Publication number: 20100308318
    Abstract: A method of manufacturing a semiconductor device includes: forming a plurality of regions extending in a predetermined direction on a substrate; and ejecting a liquid material on the plurality of regions to form an electrically conductive film, wherein the electrically conductive film extends in the same direction as the plurality of regions so as to overlap the plurality of regions.
    Type: Application
    Filed: August 17, 2010
    Publication date: December 9, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeo KAWASE, Shinri Sakai
  • Patent number: 7838916
    Abstract: A thin-film transistor includes a gate electrode, a source electrode, a drain electrode, a semiconductor layer, and a gate insulating layer for insulating the source electrode and the drain electrode from the gate electrode, wherein the gate insulating layer includes composite particles in which a hydrophobic compound is provided on the surfaces of insulating inorganic particles.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: November 23, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Soichi Moriya, Takeo Kawase
  • Patent number: 7829795
    Abstract: In at least one embodiment of the disclosure, a driving substrate includes a substrate having a first portion and a second portion formed surrounding the first portion. A flexible printed circuit is formed on the second portion. The flexible printed circuit includes a protruding portion extending to the first portion.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: November 9, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Takeo Kawase, Hitoshi Yamamoto, Takehisa Saeki, Tsutomu Miyamoto
  • Publication number: 20100270563
    Abstract: A method of manufacturing a semiconductor device includes: forming, on one surface of a substrate, source electrodes and drain electrodes, a semiconductor layer provided between the source electrodes and the drain electrodes, and a gate insulator layer provided to cover a surface of the semiconductor layer; forming an insulator layer on a surface of the gate insulator layer, the insulator layer having through portions; and forming electrodes on the gate insulator layer around the bottom of the through portions and on the insulator layer in the vicinity of the through portions by a vapor film formation method simultaneously so as not to come into contact with each other, forming gate electrodes by using the electrodes formed on the gate insulator layer, and forming pixel electrodes electrically connected to the source electrodes or the drain electrodes by using the electrodes formed on the insulator layer.
    Type: Application
    Filed: April 21, 2010
    Publication date: October 28, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeo KAWASE