Patents by Inventor Keiichi Sato

Keiichi Sato 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: 20100004138
    Abstract: Detects the presence of binding between a sample biopolymer and a probe biopolymer and the amount of binding, without modifying the sample biopolymer in any way. The present invention provides a reagent for biopolymer detection comprising semiconductor nanoparticles on which a functional group having a positive or negative charge is exposed, and a method for biopolymer detection which detects the presence of binding between a sample biopolymer and a probe biopolymer and the amount of binding by electrostatically binding a semiconductor nanoparticle on which a functional group having a positive or negative charge is exposed to a negative or positive charge of the sample biopolymer.
    Type: Application
    Filed: July 27, 2009
    Publication date: January 7, 2010
    Inventors: Keiichi Sato, Susumu Kuwabata
  • Patent number: 7628079
    Abstract: A method for measuring shear load of a fastening tool, which comprises the steps of: positioning an optical fiber sensor on a surface of a fastening tool to be subjected to a measurement, or within the tool but near the surface thereof, so that the optical fiber sensor is positioned along a direction of an axis the fastening tool; and measuring the shear load acting on the fastening tool on the basis of a change in an optical characteristic of the optical fiber sensor that directly corresponds to a deformation of the fastening tool when the shear load is applied to the fastening tool.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: December 8, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Keiichi Sato, Hideaki Murayama, Kazuro Kageyama
  • Publication number: 20090173279
    Abstract: A crucible is a monolithic structure extending over an entire area of a vaporizing chamber and has at least one slit groove provided in the upper surface thereof. The at least one slit groove has a length from one end of the upper surface of the crucible to other end thereof. The at least one slit groove is used as a portion for containing the evaporation material (dopant material or the like). Alternatively, a crucible is a monolithic structure extending over the entire area of the vaporizing chamber and has a plurality of holes provided in the upper surface thereof. The holes are used as portions for containing the evaporation material. Further, the crucible is divided into a plurality of regions, and individual electric heaters are provided under the lower surface of the crucible for the respective regions, whereby temperature can be individually controlled for the respective regions by the electric heaters.
    Type: Application
    Filed: March 3, 2009
    Publication date: July 9, 2009
    Inventors: Keiichi SATO, Toshiro Kobayashi, Mitsuo Kato, Susumu Kamikawa, Kouzou Wada
  • Publication number: 20090169720
    Abstract: A crucible is a monolithic structure extending over an entire area of a vaporizing chamber and has at least one slit groove provided in the upper surface thereof. The at least one slit groove has a length from one end of the upper surface of the crucible to other end thereof. The at least one slit groove is used as a portion for containing the evaporation material (dopant material or the like). Alternatively, a crucible is a monolithic structure extending over the entire area of the vaporizing chamber and has a plurality of holes provided in the upper surface thereof. The holes are used as portions for containing the evaporation material. Further, the crucible is divided into a plurality of regions, and individual electric heaters are provided under the lower surface of the crucible for the respective regions, whereby temperature can be individually controlled for the respective regions by the electric heaters.
    Type: Application
    Filed: March 3, 2009
    Publication date: July 2, 2009
    Inventors: Keiichi SATO, Toshiro Kobayashi, Mitsuo Kato, Susumu Kamikawa, Kouzuo Wada
  • Patent number: 7549337
    Abstract: A method is disclosed wherein a portion of a sensor part of an optical fiber sensor is embedded in an adhesive between two joined members, and peeling in an adhesive joint of the two members is detected on the basis of measuring optical characteristics from the optical fiber sensor when the optical fiber sensor is irradiated with light from a light source while one member is vibrated by vibration means. The method comprises the steps of determining the temperature of the two members during measurement on the basis of the optical characteristics from the sensor part exposed outside of the adhesive; determining, on the basis of the temperature determined during the measurement, the measurement range in which the optical characteristics from the optical fiber sensor are measured; and measuring the variation in the optical characteristics from the optical fiber sensor within the determined measurement range while the member is being vibrated by the vibration means.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: June 23, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Keiichi Sato, Hideaki Murayama, Kazuro Kageyama
  • Publication number: 20090133629
    Abstract: Provided is an in-line film-formation apparatus including: deposition sources, deposition-preventing plates, and a screen. The deposition sources store different film-formation materials, and include openings extending in the width directions of a substrate, which is perpendicular to the conveying direction. The openings, arranged in parallel with each other, are disposed respectively on the upstream and the downstream sides in the conveying direction. The plates, partitioning a co-deposition chamber from adjacent deposition chambers and placed, in parallel to each other, on the upstream and the downstream sides in the conveying direction, limit a deposition region of the vapor from the openings. The screen limits and makes the deposition regions of the substrate for vapor from openings coincide with deposition regions limited by the plates. Thereby, the formation of a mono-content film is prevented and only the mixed film is formed on the substrate.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 28, 2009
    Applicant: Mitsubishi-Hitachi Metals Machinery, Inc.
    Inventors: Susumu KAMIKAWA, Keiichi SATO, Hiroko KITAMOTO, Toshiro KOBAYASHI
  • Patent number: 7485678
    Abstract: An object is to provide a process for producing a carbon nanotube (CNT) reinforced composite material, wherein CNT is homogeneously dispersed in a resin to obtain the composite material having an excellent mechanical strength. Hydrophilic CNTs 12 are dispersed in a first solvent 11 to prepare a first dispersion liquid 13. The dispersion liquid 13 and a synthetic resin raw material 15 are added to a second solvent 14 and the resulting mixture is stirred to prepare a third dispersion liquid 17 where a second dispersion liquid 16 in which the synthetic resin raw material 15 is dissolved in the dispersion liquid 13 is dispersed in the solvent 14. The solvents 11 and 14 are removed from the dispersion liquid 17 to obtain a mixture of the hydrophilic CNTs 12 and the synthetic resin raw material 15. The mixture is molded to obtain the composite material in which the synthetic resin is reinforced with the hydrophilic CNTs 12.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: February 3, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Toshiyuki Ohashi, Keiichi Sato, Kazuhiro Miura
  • Publication number: 20080288455
    Abstract: Computerization of experiment notebooks that satisfy requirements for experiment records and effective utilization of computerized experiment notebooks and experiment data are facilitated.
    Type: Application
    Filed: September 21, 2007
    Publication date: November 20, 2008
    Inventors: Keiichi Sato, Junji Yoshii, Mami Furukubo
  • Patent number: 7452478
    Abstract: This invention provides a method for converting materials for stabilizing surfaces of semiconductor nanoparticles. In this method, surfaces of semiconductor nanoparticles are first modified and then dissolved by photoetching in the presence of materials for stabilization to obtain nanoparticles that are stabilized in an aqueous solution.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: November 18, 2008
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Keiichi Sato, Susumu Kuwabata
  • Publication number: 20080163277
    Abstract: An optical pick-up unit includes an optical pick-up for recording reproducing data to and from the optical disc, the optical pick-up being provided on a base frame so that the optical pick-up can move in a predetermined radial direction of the loaded optical disc; a stepping motor provided on the base frame; a lead screw rotated by the stepping motor and provided in parallel with the moving direction of the optical pick-up; first and second guide rods arranged on the base frame in parallel with the lead screw through a predetermined spacing there between for guiding an optical pick-up base of the optical pick-up in the moving direction of the pick-up; a rack spring having one end which is fixedly mounted on the pick-up base by a screw and the other end which is provided with an engaging portion which is in engagement with a groove of the lead screw so as to move the pick-up base in the moving direction of the pick-up in accordance with the rotation of the lead screw; and an abutment portion provided on the pi
    Type: Application
    Filed: December 28, 2007
    Publication date: July 3, 2008
    Applicant: MITSUMI ELECTRONIC CO., LTD.
    Inventors: Atsushi KIRII, Keiichi SATO, Atsushi KIKUCHI, Makoto TAKAHASHI
  • Patent number: 7378151
    Abstract: The invention provides a semiconductor nanoparticle comprising a semiconductor nanoparticle core on the surface of which electron-releasing groups are arranged, the semiconductor nanoparticle having a fluorescent property and water-solubility. The invention also provides a water-soluble semiconductor nanoparticle with an excellent fluorescent property that can be easily prepared by adding a surface-treating material for providing a semiconductor nanoparticle with one or more kinds of electron-releasing groups, and arranging the electron-releasing groups on the surface of the semiconductor nanoparticle core.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: May 27, 2008
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Keiichi Sato, Susumu Kuwabata
  • Publication number: 20080115729
    Abstract: An evaporation source having a nozzle structure that makes the distribution of film thickness uniform in the width direction of a substrate and a vacuum evaporator using the same are provided. A vapor produced by evaporation or sublimation by heating to evaporation material is discharged from a long nozzle opening like a band. A deposited substrate is transferred in a direction perpendicular to the longitudinal direction of the nozzle opening while facing the nozzle opening. A discharge flow rate of vapor per unit area in the longitudinal direction of the nozzle opening is made to be maximum in a portion at a nozzle width direction position corresponding to a substrate edge position rather than a central part of the nozzle opening and a plurality of partition plates providing directivity to the flow of vapor are arranged inside the nozzle opening.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 22, 2008
    Applicants: Yamagata Promotional Organization for Industrial Technology, MITSUBISHI HEAVY INDUSTRIES, LTD., Mitsubishi-Hitachi Metals Machinery, Inc.
    Inventors: Atsushi Oda, Toshiro Kobayashi, Keiichi Sato, Hiroko Kitamoto, Susumu Kamikawa, Kozo Wada
  • Patent number: 7335418
    Abstract: Disclosed is a semiconductor nanoparticle having excellent chemical durability and high luminescence properties. The chemical durability of the particle is provided by coating the semiconductor nanoparticle having high luminescence properties dispersed in an organic solvent using a surface-active agent, an amphipathic molecule, and a lipid composed of a combination of two or more layers selected from a polar group, a hydrophobic group, a hydrophilic group, and a functional group (herein, the hydrophobic group is a necessary element and the hydrophilic group and the functional group are optional).
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: February 26, 2008
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Keiichi Sato, Susumu Kuwabata
  • Patent number: 7329369
    Abstract: Semiconductor nanoparticles having high luminescence properties that are preferable for applications and uses of biotechnology are provided. With the use of electric charges on the surfaces of particles, the particles and selected polymers are allowed to electrostatically bind to each other, such that the surfaces of the particles are coated. The polymers are allowed to crosslink to each other, resulting in the improved durability of the particles. Further, functional groups contained in the polymers are exposed on the surfaces of the particles. Accordingly, semiconductor nanoparticles that are preferably utilized for applications such as staining and labeling of biopolymers have been synthesized.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: February 12, 2008
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Keiichi Sato, Shinya Hattori, Taeko Chiba
  • Patent number: 7326654
    Abstract: Monodisperse nanoparticles are prepared with a high degree of reproducibility by controlling pH in size-selective photoetching. The nanoparticles have uniform optical properties and other properties.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: February 5, 2008
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Keiichi Sato, Susumu Kuwabata, Tsukasa Torimoto
  • Patent number: 7318957
    Abstract: The resistance of a semiconductor nanoparticle provided with a surface treatment, such as an OH coating or ammonia treatment, against external factors is improved. A semiconductor nanoparticle provided with a surface treatment such as an OH coating or ammonia treatment and having high-emission properties is coated with an organic material, such as hexylamine, dodecylamine, trioctylmethylammonium, tridodecilmethylammonium, and similar organic material, by migrating the semiconductor nanoparticle from an aqueous phase to an organic solvent, such as hexane or toluene, thereby providing it with durability against external factors.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: January 15, 2008
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Keiichi Sato, Susumu Kuwabata
  • Publication number: 20070275296
    Abstract: An acid liquid leakage sensor quickly detecting liquid leakage from a device, such as a battery or the like, containing an acid liquid includes a first conductive member, a second conductive member, and an electrically insulating material which establishes an electrically insulating state between these first and second conductive members. The electrically insulating material includes a macromolecular compound having a basic functional group, and an electrical insulation characteristic or high resistance characteristic that decreases upon reaction with an acid liquid. It is possible to detect leakage of acid liquid, such as battery fluid, by detecting the change of conductive state between the first conductive member and the second conductive member which accompanies a decrease of the electrical insulation characteristic or high resistance characteristic of the electrically insulating material, when acid liquid leaks out and drips down the electrically insulating material.
    Type: Application
    Filed: February 26, 2004
    Publication date: November 29, 2007
    Applicants: Origin Electric Company, Limited, NTT facilities, Inc.
    Inventors: Takeharu Ueda, Kunihisa Satoh, Keiichi Sato, Ichiro Kiyokawa, Tomonobu Tsujikawa, Toshio Matsushima
  • Publication number: 20070263313
    Abstract: A check data write/read unit writes and reads check data of defects in data frame units between servo frames recorded on a medium. A read channel of the check data write/read unit outputs defect detection data in which analog variations due to medium defects such as levels and shifts of a head read signal are determined. A log creation unit creates log information from the defect detection data which is generated through reading of the check data in the data frame units. A defective sector information creation unit creates, through analysis of the log information, and saves a defective sector map indicating positions of defective sectors in a predetermined sector length.
    Type: Application
    Filed: July 20, 2007
    Publication date: November 15, 2007
    Applicant: Fujitsu Limited
    Inventors: Shigeto Kitamura, Keiichi Sato
  • Publication number: 20070237448
    Abstract: A method is disclosed wherein a portion of a sensor part of an optical fiber sensor is embedded in an adhesive between two joined members, and peeling in an adhesive joint of the two members is detected on the basis of measuring optical characteristics from the optical fiber sensor when the optical fiber sensor is irradiated with light from a light source while one member is vibrated by vibration means. The method comprises the steps of determining the temperature of the two members during measurement on the basis of the optical characteristics from the sensor part exposed outside of the adhesive; determining, on the basis of the temperature determined during the measurement, the measurement range in which the optical characteristics from the optical fiber sensor are measured; and measuring the variation in the optical characteristics from the optical fiber sensor within the determined measurement range while the member is being vibrated by the vibration means.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 11, 2007
    Inventors: Keiichi Sato, Hideaki Murayama, Kazuro Kageyama
  • Patent number: D548231
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: August 7, 2007
    Assignee: Mitsumi Electric Co., Ltd.
    Inventor: Keiichi Sato