Patents by Inventor Hiroshi Koizumi

Hiroshi Koizumi 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: 8535765
    Abstract: A method of producing a low-molecular luminous material dispersant having: inserting a coat agent in gas phase and an inner gas into a vacuum atmosphere, wherein the coat agent has a strong affinity for a solvent when the coat agent is in liquid phase; heating and vaporizing a low-molecular luminous material in the vacuum atmosphere so as to obtain a mix gas comprising the low-molecular luminous material and inner gas; cooling the mix gas so as to obtain a coat agent in liquid phase; and recovering the coat agent in liquid phase and adding the coat agent in liquid phase into the solvent so as to obtain the low-molecular luminous material dispersant.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: September 17, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoaki Sakurai, Hiroyasu Kondo, Hiroshi Koizumi
  • Publication number: 20130222782
    Abstract: According to one embodiment, a substrate holding apparatus includes a main unit and a plurality of first support units. The main unit has a major surface. The main unit has a plate configuration. The first support units are disposed on the major surface. Each of the first support units includes a suction-holding unit capable of holding a substrate by suction. The suction-holding unit is movable along a first direction perpendicular to the major surface and a second direction parallel to the major surface.
    Type: Application
    Filed: August 30, 2012
    Publication date: August 29, 2013
    Inventors: Kentaro KASA, Manabu Takakuwa, Ryoichi Inanami, Kazuto Matsuki, Tetsuro Nakasugi, Hiroshi Koizumi, Minoru Inomoto
  • Patent number: 8490571
    Abstract: A coater (1) includes: a droplet jet part (4) which ejects droplets of a first solution toward an object to be coated (2) to apply the droplets to the object to be coated (2); and a remoisturizing-drying part (6) which gives a residue of the first solution applied on the object to be coated (2) a solvent capable of dissolving the residue to form an applied body with a second solution containing the residue as a solute, and which dries the formed applied body with the second solution.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: July 23, 2013
    Assignees: Kabushiki Kaisha Toshiba, Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Sato, Hiroyasu Kondo, Naoaki Sakurai, Junsei Yamabe, Katsuyuki Soeda, Hiroshi Koizumi, Shuichi Kimura, Shizuo Kinoshita
  • Patent number: 8451525
    Abstract: An optical apparatus includes: a sealing case having chambers partitioned by a partition wall; a polar liquid having polarity and a nonpolar liquid having no polarity which are respectively sealed in a predetermined amount in each of the chambers; and electrodes pulling the polar liquid by an electrowetting phenomenon upon application of a driving voltage. One of the polar liquid and the nonpolar liquid is colored with a color having a light-blocking property, and the other has a light-transmitting property, at least a part of the partition wall is positioned in an optically effective area including the optical axis, and when a driving voltage is applied to a predetermined electrode among the electrodes, the polar liquid is moved in the chamber between closed and open positions where the optically effective area is closed and open, respectively.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: May 28, 2013
    Assignee: Sony Corporation
    Inventors: Keita Kaifu, Kazuhiro Tanaka, Hiroshi Koizumi
  • Publication number: 20130082294
    Abstract: According to one embodiment, a light-emitting unit which emits light, a wavelength conversion unit which includes a phosphor and which is provided on a main surface of the light-emitting unit, and a transparent resin which is provided on top of the wavelength conversion unit, are prepared. The transparent resin has a greater modulus of elasticity and/or a higher Shore hardness than the wavelength conversion unit.
    Type: Application
    Filed: September 7, 2012
    Publication date: April 4, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshiya NAKAYAMA, Kazuhito HIGUCHI, Hiroshi KOIZUMI, Hideo NISHIUCHI, Susumu OBATA, Akiya KIMURA, Yoshiaki SUGIZAKI, Akihiro KOJIMA, Yosuke AKIMOTO
  • Patent number: 8399275
    Abstract: According to one embodiment, a method for manufacturing a semiconductor light emitting device is disclosed. The method can include forming a first interconnect layer, a second interconnect layer, a first metal pillar, a second metal pillar, a second insulating layer, a transparent material and a phosphor layer. The transparent material is formed on the first major surface of a semiconductor layer selected from the plurality of semiconductor layers on the basis of an emission spectrum of a light obtained from the first major surface side. The transparent material transmits the light. The phosphor layer is formed on the transparent material and the first major surface of the plurality of the semiconductor layers.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: March 19, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yosuke Akimoto, Akihiro Kojima, Miyuki Izuka, Yoshiaki Sugizaki, Hiroshi Koizumi, Tomomichi Naka, Yasuhide Okada
  • Patent number: 8382676
    Abstract: In measurement requiring application of pressure to a tissue of a living body such as blood pressure measurement, noise due to vibration tends to occur. It is therefore difficult to accurately measure a pulse wave and a blood pressure value, and there is a problem of measuring blood pressure stably. It is also difficult to measure blood pressure in daily life activities or to measure blood pressure at predetermined intervals or continuously in a state where a tonometer is always attached. There is consequently a problem of providing a method of holding a biologic information detecting apparatus. The present invention has been achieved to solve the problems and an object of the invention is to provide an easy-to-wear biologic information detecting apparatus for stably detecting biologic information.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: February 26, 2013
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Naoe Tatara, Kimihisa Aihara, Shinji Mino, Hiroshi Koizumi, Shoichi Hayashida, Taisuke Oguchi, Junichi Shimada, Shoichi Sudo, Osamu Tochikubo, Hidetoshi Miura
  • Patent number: 8382675
    Abstract: In measurement requiring application of pressure to a tissue of a living body such as blood pressure measurement, noise due to vibration tends to occur. It is therefore difficult to accurately measure a pulse wave and a blood pressure value, and there is a problem of measuring blood pressure stably. It is also difficult to measure blood pressure in daily life activities or to measure blood pressure at predetermined intervals or continuously in a state where a tonometer is always attached. There is consequently a problem of providing a method of holding a biologic information detecting apparatus. The present invention has been achieved to solve the problems and an object of the invention is to provide an easy-to-wear biologic information detecting apparatus for stably detecting biologic information.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: February 26, 2013
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Naoe Tatara, Kimihisa Aihara, Shinji Mino, Hiroshi Koizumi, Shoichi Hayashida, Taisuke Oguchi, Junichi Shimada, Shoichi Sudo, Osamu Tochikubo, Hidetoshi Miura
  • Publication number: 20130039649
    Abstract: A comparator (11) outputs, out of an electrical signal input from a trans impedance amplifier (TIA) via a coupling capacitor, pulses having amplitudes equal to or larger than a reference value as a comparison output signal (Cout). An analog holding circuit (12) charges a holding capacitor with each pulse contained in the comparison output signal (Cout) and also removes a DC voltage obtained by the charging via a discharging resistor, thereby generating a holding output signal (Hout) that changes in accordance with the presence/absence of input of an optical signal. This allows to perform an autonomous operation without any necessity of an external control signal and properly detect the presence/absence of input of an optical signal.
    Type: Application
    Filed: February 14, 2011
    Publication date: February 14, 2013
    Inventors: Hiroshi Koizumi, Kazuyoshi Nishimura, Masafumi Nogawa, Yoshikazu Urabe
  • Patent number: 8368089
    Abstract: According to one embodiment, a semiconductor light emitting device includes a semiconductor layer, a first electrode, a second electrode, a transparent layer, and a fluorescent material layer. The transparent layer is provided on the first major surface of the semiconductor layer. The transparent layer is transparent with respect to light emitted by the light emitting layer and has a trench provided outside the outer circumference of the light emitting layer. The fluorescent material layer is provided in the trench and on the transparent layer. The fluorescent material layer includes a first fluorescent material particle provided in the trench and a second fluorescent material particle provided on the transparent layer. A particle size of the first fluorescent material particle is smaller than a width of the trench. A particle size of the second fluorescent material particle is larger than the width of the trench and larger than the particle size of the first fluorescent material particle.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: February 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akihiro Kojima, Hiroshi Koizumi, Yoshiaki Sugizaki, Tomomichi Naka, Yasuhide Okada
  • Publication number: 20130014360
    Abstract: According to one embodiment, a stage apparatus includes a height control unit includes height control elements each which is drove in an upward/downward direction independently, a measuring unit which divides an upper surface of the substrate into areas, and measures a height of each of the areas. The control unit is configured to set the height of each of the areas independently by controlling a height of each of the height control elements based on a data value, determine using the measuring unit whether the height of each of the areas in the upper surface of the substrate is in a allowable range, and set the height of the area out of the allowable range again by the height control elements.
    Type: Application
    Filed: March 23, 2012
    Publication date: January 17, 2013
    Inventors: Ryoichi INANAMI, Shinichi ITO, Hiroshi KOIZUMI, Akihiro KOJIMA
  • Publication number: 20120277896
    Abstract: According to one embodiment, a substrate processing system includes a measuring unit, a data processing unit, and a processing unit. The measuring unit is configured to measure information relating to a thickness dimension of a substrate. The substrate includes a light emitting unit and a wavelength conversion unit. The wavelength conversion unit includes a phosphor. The data processing unit is configured to determine processing information relating to a thickness direction of the wavelength conversion unit based on the measured information relating to the thickness dimension of the substrate and based on information relating to a characteristic of light emitted from the light emitting unit. The processing unit is configured to perform processing of the wavelength conversion unit based on the determined processing information.
    Type: Application
    Filed: April 26, 2012
    Publication date: November 1, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Uekita, Hiroshi Koizumi, Tomomichi Naka, Naoaki Sakurai, Eijiro Koike
  • Patent number: 8297743
    Abstract: According to one embodiment, a droplet ejection head includes a liquid room, chambers, piezo elements, restrictors, movable pieces, and actuators. The liquid room stores a liquid. The chambers are supplied with the liquid from the liquid room and include nozzles for ejecting the supplied liquid in a droplet state. The piezo elements can be displaced in directions so as to change contents of the chambers. The restrictors bring the liquid room and the chambers in communication with each other. The movable pieces are movable in directions so as to change flow-path areas of the restrictors. The actuators move the movable pieces in the directions so as to change the plow-path areas of the restrictors.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 30, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Koizumi, Shizuo Kinoshita
  • Publication number: 20120235184
    Abstract: According to one embodiment, a semiconductor light emitting device includes a light emitting section and a wavelength conversion section. The light emitting section is configured to emit light. The wavelength conversion section is provided on one major surface side of the light emitting section. The wavelength conversion section contains a phosphor. The wavelength conversion section has a distribution of amount of the phosphor based on a distribution of wavelength of the light emitted from the light emitting section.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 20, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi KOIZUMI, Naoaki Sakurai, Yoshiaki Sugizaki, Yasuhide Okada, Tomomichi Naka, Masahiro Uekita, Akihiro Kojima, Yosuke Akimoto
  • Publication number: 20120172735
    Abstract: A blood pressure measuring apparatus includes a cuff which is attached to and around an external ear; a first pulse wave detector and a second pulse wave detector which detect a pulse wave in a part squeezed by the cuff and which are affected differently from each other by a characteristic of body movements; a body movement detecting means which detects the characteristic of body movements; a pulse wave selecting means which selects a pulse wave detected by one of the first pulse wave detector and the second pulse wave detector based on the characteristic of body movements detected by the body movement detecting means; and a blood pressure value deriving means which derives a blood pressure value based on the pulse wave selected by the pulse wave selecting means.
    Type: Application
    Filed: March 16, 2012
    Publication date: July 5, 2012
    Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, TERUMO KABUSHIKI KAISHA
    Inventors: Yoshiyuki HABU, Kouji HAGI, Hitoshi OZAWA, Kimihisa AIHARA, Naoe TATARA, Shinji MINO, Hiroshi KOIZUMI
  • Patent number: 8136920
    Abstract: A nozzle plate includes: a first silicon layer; a glass layer; a second silicon layer provided between the first silicon layer and the glass layer, the second silicon layer being bonded to the glass layer; and a silicon oxide layer provided between the first silicon layer and the second silicon layer. A nozzle hole passing through the first silicon layer and discharging a droplet is formed. A channel passing through the silicon oxide layer and the second silicon layer and communicating with the nozzle hole is formed. A liquid chamber formed in the glass layer and communicating with the channel is formed.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: March 20, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoaki Sakurai, Junsei Yamabe, Hiroshi Koizumi
  • Publication number: 20120033181
    Abstract: The fundus observation apparatus 1 has a function to form tomographic images and 3-dimensional images of a fundus Ef by scanning signal light LS as well as a function to form a moving image (observation image K) of a fundus Ef during OCT measurement. Furthermore, the fundus observation apparatus 1 includes an x-correction part 231 and a y-correction part 232 for correcting a position in the fundus surface direction of the 3-dimensional image based on the observation image K, and a z-correction part 233 for correcting the position in the fundus depth direction of a 3-dimensional image, based on a tomographic image Gi of the fundus Ef based on the detection results of interference light LC of separately scanned signal light LS and reference light LR.
    Type: Application
    Filed: April 2, 2010
    Publication date: February 9, 2012
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Hiroshi Koizumi, Koki Harumoto, Tsutomu Kikawa, Takefumi Hayashi
  • Patent number: 8109288
    Abstract: A partial pressure control system 45 includes two valves 2 which are branched from an operation gas supply pipe 44 and which variably control operation gas, pressure sensors 3 which are respectively connected to the each valves 2 in series and which detect pressure of the operation gas, and a controller 25 which proportionally controls the operation of the valves 2 based on detection result of the pressure sensors 3, thereby relatively controlling pressures P1 and P2 of the two valves. With this configuration, it is possible to reduce wastefull consumption of the operation gas, and to enhance the responsivity with respect to change of setting and the like.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: February 7, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Hideki Nagaoka, Hiroshi Koizumi, Jun Ooyabu, Tsuyoshi Shimazu, Hiroki Endo, Keiki Ito, Daisuke Hayashi
  • Publication number: 20110300644
    Abstract: According to one embodiment, a method for manufacturing a semiconductor light emitting device is disclosed. The method can include forming a first interconnect layer, a second interconnect layer, a first metal pillar, a second metal pillar, a second insulating layer, a transparent material and a phosphor layer. The transparent material is formed on the first major surface of a semiconductor layer selected from the plurality of semiconductor layers on the basis of an emission spectrum of a light obtained from the first major surface side. The transparent material transmits the light. The phosphor layer is formed on the transparent material and the first major surface of the plurality of the semiconductor layers.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 8, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke Akimoto, Akihiro Kojima, Miyuki Izuka, Yoshiaki Sugizaki, Hiroshi Koizumi, Tomomichi Naka, Yasuhide Okada
  • Publication number: 20110297969
    Abstract: According to one embodiment, a semiconductor light emitting device includes a semiconductor layer, a first electrode, a second electrode, a transparent layer, and a fluorescent material layer. The transparent layer is provided on the first major surface of the semiconductor layer. The transparent layer is transparent with respect to light emitted by the light emitting layer and has a trench provided outside the outer circumference of the light emitting layer. The fluorescent material layer is provided in the trench and on the transparent layer. The fluorescent material layer includes a first fluorescent material particle provided in the trench and a second fluorescent material particle provided on the transparent layer. A particle size of the first fluorescent material particle is smaller than a width of the trench. A particle size of the second fluorescent material particle is larger than the width of the trench and larger than the particle size of the first fluorescent material particle.
    Type: Application
    Filed: September 20, 2010
    Publication date: December 8, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akihiro Kojima, Hiroshi Koizumi, Yoshiaki Sugizaki, Tomomichi Naka, Yasuhide Okada