Patents by Inventor Shinichi Okada

Shinichi Okada 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: 20160153527
    Abstract: An actuator comprises a motor including a rotation shaft; an output shaft disposed coaxially to the rotation shaft; a rotation shaft side gear rotatable as a unit with the rotation shaft; an output shaft side gear rotatable as a unit with the output shaft; an intermediate gear configuration body that includes a first intermediate gear and a second intermediate gear and that meshes with the rotation shaft side gear and the output shaft side gear; a first bearing supporting an end portion of the intermediate gear configuration body at a side of the first intermediate gear; and a second bearing supporting another end portion of the intermediate gear configuration body at a side of the second intermediate gear; wherein the second intermediate gear is rotatable as a unit with the first intermediate gear and is disposed further to a radial direction outside of the motor than the first intermediate gear.
    Type: Application
    Filed: November 27, 2015
    Publication date: June 2, 2016
    Inventors: Shinichi OKADA, Yasuhide ITO, Kohei SHIBATA, Takafumi NEGI
  • Patent number: 9181443
    Abstract: A resin for aqueous pigment dispersion that allows the production of an aqueous pigment dispersion for ink jet recording that contains only a few coarse particles and has excellent ejection stability, an aqueous pigment dispersion containing the resin for aqueous pigment dispersion, an ink jet recording ink, and a method for producing an aqueous pigment dispersion. A resin for aqueous pigment dispersion produced by copolymerization of a composition that contains (a) one or two or more compounds selected from the group consisting of alkenylsuccinic acids, alkenylsuccinic anhydrides, alkylsuccinic acids, and alkylsuccinic anhydrides, and (b) a styrene monomer, wherein the (a) component constitutes 5% by mass or more and the (b) component constitutes 30% by mass or more of the total amount of all the monomer component(s) and the (a) component of the composition.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: November 10, 2015
    Assignee: DIC CORPORATION
    Inventors: Hiroyuki Buei, Yoshinosuke Shimamura, Shinichi Okada, Kenji Nasu, Takashi Yoshinari
  • Publication number: 20150247901
    Abstract: An insulation inspection device for motors includes an inverter for driving a motor, a partial discharge detecting unit for determining soundness of the motor, and a control circuit for controlling the inverter. The control circuit adjusts a switching interval of a voltage pulse of the inverter so as to be equal to a pulse round-trip propagation time between the inverter and the motor, thereby generating surge voltage higher than driving voltage for the motor, between the motor and ground, and adjusts a switching time for each phase of the inverter, thereby generating surge voltage higher than driving voltage for the motor, between phases, thus performing insulation inspection.
    Type: Application
    Filed: April 17, 2013
    Publication date: September 3, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shinichi Okada, Hiroki Shiota, Hirotaka Muto
  • Publication number: 20150135987
    Abstract: A railcar includes a side sliding door and entrance peripheral-member surrounding the side entrance. The entrance peripheral-member includes a door pocket post in which outer and inner portions are inwardly of the outer portion in car-width direction coupled to each other. The side sliding door peripheral portion is pressed against an edge portion, extending along the side entrance of the entrance peripheral-member via a rubber seal at the side entrance closed state. In the side entrance open state, the side sliding door is pulled into a door pocket space facing the door pocket post inner portion. A portion projecting inwardly in car-width direction beyond the inner portion and including a tip end contacting the rubber seal provided at at least part of region constituted by portions of upper and lower edges of the side entrance peripheral-member and lateral edge at the edge portion door pocket post side of the entrance peripheral-member.
    Type: Application
    Filed: June 11, 2013
    Publication date: May 21, 2015
    Inventors: Naoaki Kawakami, Shinichi Okada, Naohiro Yoshida, Kazumasa Inaba, Kenji Waki
  • Publication number: 20130338310
    Abstract: Disclosed are an ink jet recording water-based ink having excellent long-term storage stability and ejection stability at a pigment concentration greater than or equal to a certain level and a simple and efficient method for producing such a water-based ink. The present invention provides an ink jet recording water-based ink in which the total content of polyvalent metals as impurities in the water-based ink is not more than 1.2 ppm in terms of 1 mass % of a pigment concentration. Furthermore, the present invention provides a method for producing an ink jet recording water-based ink; the method enables efficient production of the above-mentioned ink jet recording water-based ink through a contact treatment with a particulate chelating resin in which each resin particle contains both an alkali metal-bonded chelating group and a hydrogen-bonded chelating group.
    Type: Application
    Filed: December 22, 2011
    Publication date: December 19, 2013
    Applicant: DIC CORPORATION
    Inventors: Yoshinosuke Shimamura, Hiroyuki Buei, Yukihiko Kawaharada, Shinichi Okada, Soetrisno Misawa
  • Patent number: 8441339
    Abstract: The present invention provides a displacement detector for a relative displacement of a fixed member and a movable member, which includes a first member and a second member. The first member is secured to the fixed member and composed of an insulator. The second member moves relative to the fixed member, integrally with the movable member. The second member is disposed opposite to the first member. The second member is composed of an insulator. Either of the first member and the second member includes an IC tag for detection performing non-contact communication, and the other includes a blocking member composed of a conductor blocking the communication performed by the IC tag. When the second member moves a predetermined amount relative to the first member, starting from an initial state, the IC tag for detection moves from inside to outside a region of the blocking member or vice versa.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: May 14, 2013
    Assignee: Uchimura Co., Ltd.
    Inventors: Shinichi Okada, Noboru Araki, Masami Saruya, Yoshikazu Terasawa
  • Publication number: 20130053485
    Abstract: It is an object of the present invention to provide an aqueous ink composition for inkjet recording, the aqueous ink composition having satisfactory dispersion properties and ejection properties, excellent scratch resistance and rub resistance, and high color developability and gloss. To this end, the present invention provides an aqueous ink composition for inkjet recording, the aqueous ink composition containing a pigment (a), an anionic group-containing resin (b), a humectant (c), a basic compound (d), a water-dispersible polyurethane resin (e), and a polyolefin wax (f). The water-dispersible polyurethane resin content is preferably in the range of 0.2% to 5% by mass. The value of (Cf·Df) is preferably in the range of 3 to 100, wherein Cf represents the polyolefin wax (f) content (percent by mass), and Df represents the volume-average particle size (nm).
    Type: Application
    Filed: January 31, 2011
    Publication date: February 28, 2013
    Applicant: DIC CORPORATION
    Inventors: Soetrisno Misawa, Shinichi Okada
  • Publication number: 20120329931
    Abstract: A method for producing an aqueous pigment dispersion for ink jet recording that contains only a few coarse particles and has excellent ejection stability, and an aqueous ink for ink jet recording. A method for producing an aqueous pigment dispersion for ink jet recording according to the present invention includes a kneading process for kneading a mixture of a pigment, a resin having an anionic group, and an alkali metal hydroxide to produce a pigment dispersion having a solid content of 50% by mass or more, and a mixing process for mixing and agitating the pigment dispersion in an aqueous medium.
    Type: Application
    Filed: April 6, 2012
    Publication date: December 27, 2012
    Applicant: DIC CORPORATION
    Inventors: Hiroyuki Buei, Yoshinosuke Shimamura, Shinichi Okada, Kenji Nasu, Takashi Yoshinari
  • Publication number: 20120325111
    Abstract: A resin for aqueous pigment dispersion that allows the production of an aqueous pigment dispersion for ink jet recording that contains only a few coarse particles and has excellent ejection stability, an aqueous pigment dispersion containing the resin for aqueous pigment dispersion, an ink jet recording ink, and a method for producing an aqueous pigment dispersion. A resin for aqueous pigment dispersion produced by copolymerization of a composition that contains (a) one or two or more compounds selected from the group consisting of alkenylsuccinic acids, alkenylsuccinic anhydrides, alkylsuccinic acids, and alkylsuccinic anhydrides, and (b) a styrene monomer, wherein the (a) component constitutes 5% by mass or more and the (b) component constitutes 30% by mass or more of the total amount of all the monomer component(s) and the (a) component of the composition.
    Type: Application
    Filed: April 6, 2012
    Publication date: December 27, 2012
    Applicant: DIC CORPORATION
    Inventors: Hiroyuki Buei, Yoshinosuke Shimamura, Shinichi Okada, Kenji Nasu, Takashi Yoshinari
  • Publication number: 20120220703
    Abstract: A highly efficient method is provided for producing a water-based ink for ink jet recording with which the number of coarse particles in a water-based pigment dispersion liquid is significantly reduced, dispersed particles are made finer, the dispersion stability is improved, the storage stability is improved, and high discharge stability is achieved when a water-based ink for ink jet recording is produced. Particularly, provided is a method for producing a water-based pigment dispersion liquid, the method including kneading a mixture containing a quinacridone type pigment (a), a styrene-acrylic acid type copolymer (c), a basic compound (d), and a polyoxyalkylene glycol or its derivative (e) to prepare a pigment dispersion that is solid at room temperature and mixing a aqueous medium and the pigment dispersion to decrease the viscosity and liquefy the pigment dispersion.
    Type: Application
    Filed: August 25, 2010
    Publication date: August 30, 2012
    Applicant: DIC CORPORATION
    Inventors: Masahiro Kido, Shinichi Okada, Atsuo Kobayashi, Soetrisno Misawa
  • Patent number: 8163820
    Abstract: A process is provided for producing aqueous pigment dispersions for ink-jet recording in which fine pigments are stably dispersed and such a state can be maintained for a long period of storing. Moreover, a process is provided for producing aqueous pigment dispersions for ink-jet recording in which the time required for production such as dispersing time is short, and the production efficiency is high. The process for producing aqueous pigment dispersions for ink-jet recording includes a first step of kneading (1) a styrene-acrylic type resin with a styrene type monomer unit of 50 to 90 mass %, and at least one unit selected from an acrylic monomer unit and methacrylic monomer unit, having an acid value of 50 to 300, (2) a pigment, (3) a basic compound, and (4) a humectant to produce a solid colored kneaded product, and a second step of dispersing the solid colored kneaded product in an aqueous medium comprising water or water and humectant.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: April 24, 2012
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Hideaki Kaji, Kazuhiro Kaneko, Ritsuko Small, Hiromichi Arakawa, Shinichi Okada, Hiroshi Harada, Sadahiro Inoue
  • Patent number: 7902504
    Abstract: A charged particle beam reflector device is configured to include at least two electrostatic mirrors arranged with a predetermined interval on a linear optical axis, each having a through hole through which a charged particle beam radiated from an electron gun along a linear optical axis passes, and having a function of reflecting the charged particle beam or allowing the charged particle beam to pass through the through hole in accordance with an applied voltage, and a controller controlling an applied voltage to the at least two electrostatic mirrors. The controller applies, to each of the electrostatic mirrors, a reflection voltage allowing the electrostatic mirrors to reflect the charged particle beam at a predetermined timing so that the charged particle beam from the electron gun is reflected by the at least two electrostatic mirrors a plurality of times.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: March 8, 2011
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Hirotami Koike, Shinichi Okada
  • Publication number: 20100308969
    Abstract: The present invention provides a displacement detector for a relative displacement of a fixed member and a movable member, which includes a first member and a second member. The first member is secured to the fixed member and composed of an insulator. The second member moves relative to the fixed member, integrally with the movable member. The second member is disposed opposite to the first member. The second member is composed of an insulator. Either of the first member and the second member includes an IC tag for detection performing non-contact communication, and the other includes a blocking member composed of a conductor blocking the communication performed by the IC tag. When the second member moves a predetermined amount relative to the first member, starting from an initial state, the IC tag for detection moves from inside to outside a region of the blocking member or vice versa.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 9, 2010
    Applicant: Uchimura Co., Ltd.
    Inventors: Shinichi OKADA, Noboru ARAKI, Masami SARUYA, Yoshikazu TERASAWA
  • Publication number: 20100231409
    Abstract: A communication control circuit includes a shift register and a control data selector, and controls controlled units according to a data signal, a clock signal and a strobe signal inputted via three serial signal lines. The shift register serial-to-parallel converts the data signal sequentially taken in according to the clock signal into a converted signal, and outputs the converted signal. The control data selector selects control data for controlling the corresponding controlled unit from the signal from the shift register, in response to a device definition signal for identifying the communication control circuit, and outputs the same control data.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 16, 2010
    Inventors: Shinichi Okada, Yasuo Oba, Hidehiko Kurimoto, Seiichi Muroya
  • Patent number: 7691193
    Abstract: Disclosed are an aqueous pigment dispersion for inkjet ink, a method for producing the same, and an ink composition for inkjet recording which mainly contains the aqueous pigment dispersion for inkjet ink. The method for producing the aqueous pigment dispersion for inkjet ink is characterized by comprising a kneading step wherein a mixture including a styrene resin, a quinacridone pigment, a phthalimidomethylated quinacridone compound, an alkali metal hydroxide and a wetting agent is kneaded for producing a solid colored kneaded material, and a dispersing step wherein the thus-obtained solid colored kneaded material is dispersed into an aqueous medium.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: April 6, 2010
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Shinichi Okada, Kyouko Takashima, Ryouta Hibino
  • Publication number: 20090294665
    Abstract: To provide a scanning electron microscope that can detect with high efficiency the secondary electrons generated from the entire surface of a target, in a scanning electron microscope with an objective lens having a retarding electric field near a sample, at least two detectors are arranged with axial symmetry to electron optical axis, a target that causes secondary electrons or reflected electrons to collide with the target is disposed near the detectors, and at least one electrode member having a negative potential lower than a potential of the target is formed almost with axial symmetry to the electron optical axis.
    Type: Application
    Filed: March 19, 2009
    Publication date: December 3, 2009
    Inventors: Hirotami Koike, Shinichi Okada
  • Patent number: 7592604
    Abstract: The present invention provides a charged particle beam apparatus capable of preventing the charging-up of the specimen without using a large-scale facility. A scanning electron microscope 100 illuminates a specimen 21 with a charged particle beam via a charged particle optical system arranged in a column. According to the present invention, the scanning electron microscope 100 has a charge preventive member 110 disposed between the objective lens 14 and the specimen 21. The charge preventive member 110 has an electrically conductive portion and an opening 113 to transmit the charged particle beam. The charge preventive member 110 is formed so as to partly cover the charged particle optical system when viewed from the charged particle beam irradiation spot on the specimen. In addition, the charge preventive member 110 has gas inflow paths 114 and 115 formed therein. These gas inflow paths have gas injection outlets 116 formed to inject gas toward the charged particle beam irradiation spot on the specimen.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: September 22, 2009
    Assignee: Topcon Corporation
    Inventors: Hirotami Koike, Shinichi Okada, Akira Higuchi, Masahiro Inoue, Masahiro Yamamoto, Sumio Sasaki
  • Publication number: 20090095904
    Abstract: A charged particle beam reflector device is configured to include at least two electrostatic mirrors arranged with a predetermined interval on a linear optical axis, each having a through hole through which a charged particle beam radiated from an electron gun along a linear optical axis passes, and having a function of reflecting the charged particle beam or allowing the charged particle beam to pass through the through hole in accordance with an applied voltage, and a controller controlling an applied voltage to the at least two electrostatic mirrors. The controller applies, to each of the electrostatic mirrors, a reflection voltage allowing the electrostatic mirrors to reflect the charged particle beam at a predetermined timing so that the charged particle beam from the electron gun is reflected by the at least two electrostatic mirrors a plurality of times.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 16, 2009
    Inventors: Hirotami Koike, Shinichi Okada
  • Patent number: 7422907
    Abstract: A process for measuring the mercury concentration within a hydrocarbon is provided that enables the mercury concentration to be measured simply and quickly, and with good reliability and good reproducibility. A process for measuring the mercury concentration within a hydrocarbon includes the steps of placing and weighing the hydrocarbon in a sample boat 12 containing an adsorbent that contains a metal capable of forming an amalgam with mercury, and heating the hydrocarbon inside the sample boat 12 in a combustion furnace 13, together with the adsorbent, and measuring the quantity of mercury within the thus generated gas.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: September 9, 2008
    Assignee: Sekiyushigen Kaihstsu Kabushiki Kaisha
    Inventors: Hitomi Hirano, Shinichi Okada, Naohide Tsuzuki, Yoshio Yasuda
  • Publication number: 20080139706
    Abstract: A process is provided for producing aqueous pigment dispersions for ink-jet recording in which fine pigments are stably dispersed and such a state can be maintained for a long period of storing. Moreover, a process is provided for producing aqueous pigment dispersions for ink-jet recording in which the time required for production such as dispersing time is short, and the production efficiency is high. The process for producing aqueous pigment dispersions for ink-jet recording includes a first step of kneading (1) a styrene-acrylic type resin with a styrene type monomer unit of 50 to 90 mass %, and at least one unit selected from an acrylic monomer unit and methacrylic monomer unit, having an acid value of 50 to 300, (2) a pigment, (3) a basic compound, and (4) a humectant to produce a solid colored kneaded product, and a second step of dispersing the solid colored kneaded product in an aqueous medium comprising water or water and humectant.
    Type: Application
    Filed: August 11, 2003
    Publication date: June 12, 2008
    Applicant: Dainippon Ink And Chemicals, Inc.
    Inventors: Hideaki Kaji, Kazuhiro Kaneko, Ritsuko Small, Hiromichi Arakawa, Shinichi Okada, Hiroshi Harada, Sadahiro Inoue