Patents by Inventor Isao Takasu

Isao Takasu 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: 7839087
    Abstract: A method of manufacturing a light emitting device. The method includes: mounting a light emitting chip on a substrate; forming a transparent resin portion and a phosphor layer by using a liquid droplet discharging apparatus, the transparent resin portion being formed in a shape of a dome and covering the light emitting chip to fill an exterior thereof on the substrate, a phosphor layer containing phosphor and being formed on an exterior of the transparent resin portion close to at least a top side thereof; and forming a reflecting layer at a position exterior of the transparent resin portion and the phosphor layer close to the substrate.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: November 23, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Isao Takasu, Yuko Nomura, Tsuyoshi Hioki, Isao Amemiya, Kazuhide Abe
  • Publication number: 20100244002
    Abstract: An organic light-emitting diode includes an anode and a cathode separately arranged from each other, and an emission layer between the anode and the cathode, the emission layer including a single host material and a light-emitting material, the emission layer including, when the host material has a hole transport property, a doped region on a cathode side to which an electron transport material is doped and an undoped region on an anode side to which an electron transport material is not doped, or the emission layer including, when the host material has an electron transport property, a doped region on an anode side to which a hole transport material is doped and an undoped region on a cathode side to which a hole transport material is not doped.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 30, 2010
    Inventors: Tomio Ono, Shintaro Enomoto, Yukitami Mizuno, Isao Takasu, Yasushi Shinjo, Shuichi Uchikoga
  • Patent number: 7790485
    Abstract: A method of manufacturing a semiconductor light emitting device. The method includes: mounting a semiconductor light emitting element on a flat substrate; covering the semiconductor light emitting element on the flat substrate by a cover layer in a domed shape to form a light emitting device, the cover layer including at least a phosphor layer and a coating resin layer that are laminated in order, so as to fill around the semiconductor light emitting element; measuring an emission condition of the light emitting device; and forming a convex lens unit on the outermost of the coating resin layer using a liquid droplet discharging apparatus to adjust an emission distribution of the light emitting device based on the measured emission condition.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: September 7, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuko Nomura, Kenichi Mori, Isao Takasu, Keiji Sugi, Isao Amemiya, Miho Yoda
  • Publication number: 20100123389
    Abstract: A light-emitting compound includes two or more carbazole skeletons each having two or more fluorine atoms at 2-, 4-, 5- and 7-positions, the carbazole skeleton represented by the formula (1): where two or more of R2, R4, R5 and R7 are F and a remainder is H.
    Type: Application
    Filed: November 11, 2009
    Publication date: May 20, 2010
    Inventors: Isao Takasu, Ryoko Iida, Yukitami Mizuno, Shintaro Enomoto, Shuichi Uchikoga
  • Patent number: 7611230
    Abstract: An inkjet recording apparatus includes: a head unit including: an ultrasonic wave generation unit that generates ultrasonic waves; an ultrasonic wave focus unit that focuses the ultrasonic waves to an ultrasonic wave focus position; an ultrasonic wave transmission unit that propagates the ultrasonic waves from the ultrasonic wave focus unit; and a wall plate that covers the ultrasonic wave generation unit, the ultrasonic wave focus unit and the ultrasonic wave transmission unit; an annular film that rotates while sliding along an exterior of the head unit; a film drive mechanism that rotates the film; and an ink application unit that applies ink over the film to form an ink layer, wherein the ultrasonic wave focus position of the head unit is directing to a position of the ink layer so as to eject an ink from the ink layer.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: November 3, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuko Nomura, Hitoshi Nagato, Isao Takasu, Kenichi Mori, Keiji Sugi, Tsuyoshi Hioki, Miho Yoda
  • Publication number: 20090101944
    Abstract: It is made possible to form an interelectrode gap with high precision, without a decrease in the simplicity and convenience of the process to be carried out by an ink jet technique. A method for manufacturing an electronic device, includes: applying a water repellent agent onto a substrate by an ink jet technique to form a water repellent region on the substrate; dropping a solution containing a conductive ink material along edges of the water repellent region on the substrate by the ink jet technique to form a source electrode and a drain electrode; and forming a semiconductor layer to cover the water repellent region, the source electrode, and the drain electrode.
    Type: Application
    Filed: February 5, 2008
    Publication date: April 23, 2009
    Inventor: Isao TAKASU
  • Publication number: 20090021140
    Abstract: A method of manufacturing a light emitting device. The method includes: mounting a light emitting chip on a substrate; forming a transparent resin portion and a phosphor layer by using a liquid droplet discharging apparatus, the transparent resin portion being formed in a shape of a dome and covering the light emitting chip to fill an exterior thereof on the substrate, a phosphor layer containing phosphor and being formed on an exterior of the transparent resin portion close to at least a top side thereof; and forming a reflecting layer at a position exterior of the transparent resin portion and the phosphor layer close to the substrate.
    Type: Application
    Filed: May 16, 2008
    Publication date: January 22, 2009
    Inventors: Isao TAKASU, Yuko NOMURA, Tsuyoshi HIOKI, Isao AMEMIYA, Kazuhide ABE
  • Publication number: 20090020773
    Abstract: A method of manufacturing a semiconductor light emitting device. The method includes: mounting a semiconductor light emitting element on a flat substrate; covering the semiconductor light emitting element on the flat substrate by a cover layer in a domed shape to form a light emitting device, the cover layer including at least a phosphor layer and a coating resin layer that are laminated in order, so as to fill around the semiconductor light emitting element; measuring an emission condition of the light emitting device; and forming a convex lens unit on the outermost of the coating resin layer using a liquid droplet discharging apparatus to adjust an emission distribution of the light emitting device based on the measured emission condition.
    Type: Application
    Filed: May 16, 2008
    Publication date: January 22, 2009
    Inventors: Yuko NOMURA, Kenichi Mori, Isao Takasu, Keiji Sugi, Isao Amemiya, Miho Yoda
  • Publication number: 20080230771
    Abstract: It is made possible to provide a thin film transistor having transistor characteristics that do not widely vary. A thin film transistor includes: a substrate; a pair of insulating layers formed at a distance from each other on the substrate; a source electrode formed on one of the insulating layers, and a drain electrode formed on the other one of the insulating layers; a semiconductor layer formed to cover the source electrode, the drain electrode, and the substrate; a gate insulating film formed on the semiconductor layer; and a gate electrode formed on the gate insulating film.
    Type: Application
    Filed: March 11, 2008
    Publication date: September 25, 2008
    Inventors: Isao TAKASU, Tsuyoshi HIOKI, Isao AMEMIYA, Shuichi UCHIKOGA
  • Publication number: 20080088668
    Abstract: An inkjet recording apparatus includes: a head unit including: an ultrasonic wave generation unit that generates ultrasonic waves; an ultrasonic wave focus unit that focuses the ultrasonic waves to an ultrasonic wave focus position; an ultrasonic wave transmission unit that propagates the ultrasonic waves from the ultrasonic wave focus unit; and a wall plate that covers the ultrasonic wave generation unit, the ultrasonic wave focus unit and the ultrasonic wave transmission unit; an annular film that rotates while sliding along an exterior of the head unit; a film drive mechanism that rotates the film; and an ink application unit that applies ink over the film to form an ink layer, wherein the ultrasonic wave focus position of the head unit is directing to a position of the ink layer so as to eject an ink from the ink layer.
    Type: Application
    Filed: September 26, 2007
    Publication date: April 17, 2008
    Inventors: Yuko Nomura, Hitoshi Nagato, Isao Takasu, Kenichi Mori, Keiji Sugi, Tsuyoshi Hioki, Hiho Yoda
  • Publication number: 20070181429
    Abstract: Disclosed is a production process of an electronic circuit that can efficiently form a highly accurate electrically conductive pattern. The production process comprises the steps of: adhering insulating particles onto an electrically conductive base material to form an insulating pattern comprising a pattern region and a nonpattern region on the electrically conductive base material; adhering electrically conductive particles to the nonpattern region by first electrophoretic treatment; removing the pattern region by second electrophoretic treatment; and transferring the electrically conductive particles onto a recording medium to form an electrically conductive pattern of the electrically conductive particles onto the recording medium.
    Type: Application
    Filed: August 1, 2006
    Publication date: August 9, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Isao Takasu
  • Publication number: 20070120117
    Abstract: The present invention provides a semiconductor element having a semiconductor layer that has high carrier mobility and is easy to form. This semiconductor element includes a semiconductor layer made of TeI4, which has a clustering structure.
    Type: Application
    Filed: September 12, 2006
    Publication date: May 31, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Isao Takasu, Isao Amemiya, Shuichi Uchikoga, Rei Hasegawa, Hideyuki Nakao
  • Patent number: 6858562
    Abstract: A catalyst of a water insoluble vanadyl sulfate or a complex catalyst, in which a specific oxide and a specific sulfate are combined to the water insoluble vanadyl sulfate are excellent not only in their activity, durability and SO2 resistance, not only in substantially no oxidization of SO2 to SO3 as in HCl resistant. Therefore, using this catalyst, a decomposition treatment of an organic halide(s) can be carried out with high efficiency and good stability. In particular, a efficient decomposition treatment of an organic halides(s) can be carried out also in the cases that dust is coexist; the gas to be treated contains SOX or HCl; or they generate in the decomposition area.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: February 22, 2005
    Assignees: Mitsui Chemicals, Inc., UBE Industries, Ltd.
    Inventors: Isao Takasu, Kenji Fujita
  • Patent number: 6560420
    Abstract: An electrophotographic device includes a control section configured to control operations of a charging unit, an exposure unit, and other units to satisfy a desired condition.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: May 6, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hitoshi Yagi, Isao Takasu
  • Publication number: 20020048464
    Abstract: An electrophotographic device having a control section (11) for controlling operations of charging units (2-1 to 2-4), exposure units (3-1 to 3-4), and other units so that forces against previously developed toners, close to subsequent toner area where no previously developed toner is present, wherein the previously developed toner area is not exposed during the subsequent selective exposure process, satisfy a desired condition-equation (equation (5)) when the exposure unit (3-1 to 3-4) selectively exposed the subsequent toner forming area after the completion of the previous development process for the previous toner and the subsequent charging process.
    Type: Application
    Filed: September 17, 2001
    Publication date: April 25, 2002
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hitoshi Yagi, Isao Takasu