Patents by Inventor Katsuyoshi Yamaguchi
Katsuyoshi Yamaguchi 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).
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Publication number: 20110075321Abstract: Disclosed is a laminated ceramic capacitor that comprises a capacitor body (1) comprising alternately stacked dielectric layers (5) and internal electrode layers (7), and an external electrode (3) provided on the end face of the capacitor body (1) on which the internal electrode layer (7) is exposed. The dielectric layers (5, 5) disposed on both respective sides of the internal electrode layer (7) held between the dielectric layers (5, 5) are formed integrally with a dielectric bonding material (8) disposed so as to extend through a part of the internal electrode layer (7). The dielectric layer (5) has a crystal phase, composed mainly of barium titanate, as a main crystal phase, The crystal phase has a crystal structure based on a cubic system. The average grain diameter of crystal grains constituting the crystal phase is 0.05 to 0.2 pm. The dielectric layer (5) is formed of a dielectric ceramic containing yttrium, manganese, magnesium, and ytterbium.Type: ApplicationFiled: April 24, 2009Publication date: March 31, 2011Applicant: KYOCERA CORPORATIONInventor: Katsuyoshi Yamaguchi
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Patent number: 7910355Abstract: A culture observation apparatus, which is used for observing a cultured cell while culturing the cell, includes a culture device that cultures the cultured cell, and a microscope used for observing the cultured cell. The culture device includes a first space that is controlled to an environment suitable for culture of the cell, and a second space that is controlled to a lower humidity condition in comparison with the first space. The microscope includes an objective optical unit including an objective lens; the objective optical unit having at least one portion located in the second space, and another portion extending into the first space through an opening formed in a partition wall that separates the first space and the second space, with a gap between the objective optical unit and the partition wall being sealed by a sealing member, and the objective lens includes a plurality of lens groups, with mutual spaces among the lens groups vented to the second space.Type: GrantFiled: December 22, 2005Date of Patent: March 22, 2011Assignee: Olympus CorporationInventors: Atsuhiro Tsuchiya, Ryuichi Hirano, Hideaki Endo, Kenichi Koyama, Kazuhiro Hasegawa, Akitsugu Kagayama, Katsuyoshi Yamaguchi
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Patent number: 7816126Abstract: A culture observation apparatus, which is used for observing a cultured cell while culturing the cell, includes a culture device that forms a culture space which is controlled to be an environment suitable for culturing the cultured cell; a sample tray that holds a container housing the cultured cell and a culture medium; a microscope that serves for observing the cultured cell; a tray holding mechanism that holds the sample tray in the culture space in a detachable manner with good reproducibility; and a shifting mechanism that relatively shifts the sample tray held by the tray holding mechanism and a light axis of the microscope along a plane that is orthogonal to the light axis, wherein the sample tray has a heater used for heating the sample tray, and is electrically connectable to an energy supplying unit that supplies energy to the sample tray.Type: GrantFiled: December 20, 2005Date of Patent: October 19, 2010Assignee: Olympus CorporationInventors: Akitsugu Kagayama, Ryuichi Hirano, Atsuhiro Tsuchiya, Kenichi Koyama, Kazuhiro Hasegawa, Katsuyoshi Yamaguchi, Hideaki Endo
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Publication number: 20100097740Abstract: A dielectric ceramic comprising a barium titanate as a main component and a capacitor comprising the dielectric ceramic are disclosed. The dielectric ceramic has a high dielectric constant that is stable over temperature, and has a small spontaneous polarization. The capacitor can reduce audible noise caused by an electrically induced strain in a power supply circuit.Type: ApplicationFiled: December 22, 2009Publication date: April 22, 2010Applicant: KYOCERA CORPORATIONInventor: Katsuyoshi YAMAGUCHI
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Publication number: 20100046140Abstract: Disclosed is a dielectric ceramic comprising crystal grains mainly composed of barium titanate. This dielectric ceramic contains 0.01-0.06 mole of magnesium in terms of MgO, 0.0007-0.03 mole of yttrium in terms of Y2O3 and 0.0002-0.03 mole of manganese in terms of MnO per 1 mole of barium constituting the barium titanate, while containing 4.2-33.3 parts by mass of niobium in terms of Nb2O5 per 100 parts by mass of the barium titanate. The crystal grains have an average particle size of 0.05-0.25 ?m. Also disclosed is a capacitor composed of a laminate having a conductive layer and a dielectric layer made of such a dielectric ceramic.Type: ApplicationFiled: May 29, 2009Publication date: February 25, 2010Applicant: KYOCERA CORPORATIONInventors: Katsuyoshi YAMAGUCHI, Ryota Kuki, Hiroaki Mino
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Publication number: 20100002360Abstract: A dielectric ceramic and a capacitor comprising the dielectric ceramic are disclosed. The dielectric ceramic has a high dielectric constant that is stable over temperature, and has a small spontaneous polarization. The capacitor can reduce audible noise caused by an electrically induced strain in a power supply circuit.Type: ApplicationFiled: September 14, 2009Publication date: January 7, 2010Applicant: KYROCERA CORPORATIONInventors: Katsuyoshi YAMAGUCHI, Masahiro Nishigaki
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Publication number: 20100003475Abstract: A metal film containing Ni as a main component and Mn and at least one element selected from the group consisting of the elements of Groups 3b, 4b, 5b, and 6b of the periodic table includes a central part and a peripheral part in which Mn and the element selected from the group consisting of the elements of Groups 3b, 4b, 5b, and 6b of the periodic table are present in a concentration higher in the peripheral part than that in the central part. The metal film used as a conductor layer can have an increased melting point at the peripheral part and thus can be prevented from shrinking during heating. The metal film used as a conductor layer in electronic components and the like can be prevented from plastically deforming or shrinking during heating so that the conductor layer can have a large effective area and high adhesion to ceramic layers.Type: ApplicationFiled: August 21, 2006Publication date: January 7, 2010Applicant: KYOCERA CORPORATIONInventor: Katsuyoshi Yamaguchi
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Publication number: 20090284899Abstract: A dielectric ceramic and a capacitor comprising the dielectric ceramic are disclosed. The dielectric ceramic has a high dielectric constant that is stable over temperature, and has a small spontaneous polarization. The capacitor can reduce audible noise caused by an electrically induced strain in a power supply circuit.Type: ApplicationFiled: July 28, 2009Publication date: November 19, 2009Applicant: KYOCERA CORPORATIONInventor: Katsuyoshi YAMAGUCHI
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Patent number: 7595188Abstract: An observation apparatus includes a sample tray that holds a container housing a cultured cell and a culture medium and covered with a lid; an observation unit that serves for observation of the cultured cell; and a shifting unit that relatively shifts the sample tray and a light axis of the observation unit along a plane that is orthogonal to the light axis of the observation unit, wherein the sample tray includes a container holding unit that holds the container by utilizing an elastic force, and at least one of the lid and one portion of the lid is made detachable, with the container being held in the sample tray by the container holding unit.Type: GrantFiled: December 12, 2005Date of Patent: September 29, 2009Assignee: Olympus CorporationInventors: Kazuhiro Hasegawa, Akitsugu Kagayama, Hideaki Endo, Ryuichi Hirano, Atsuhiro Tsuchiya, Kenichi Koyama, Katsuyoshi Yamaguchi
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Patent number: 7486886Abstract: A photo-micrographing device includes a microscope, a unit for obtaining an image of an inspection object, a unit for setting a plurality of view fields of the microscope and storing position information of a stage corresponding to each view field, a unit for storing setting information of the microscope and a camera unit in each view field, a unit for storing shooting conditions corresponding to each view field where time-lapse shooting is applied, a unit for obtaining a time-lapse shooting image for each view field where the time-lapse shooting is applied, based on the stored position information, the stored setting information and the stored shooting conditions, and a unit for collectively displaying latest taken time-lapse shooting images for each view field where the time-lapse shooting is applied.Type: GrantFiled: January 11, 2006Date of Patent: February 3, 2009Assignee: Olympus CorporationInventors: Hideaki Endo, Akitsugu Kagayama, Katsuyoshi Yamaguchi
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Patent number: 7382531Abstract: The problem to be solved by the present invention is to provide a microscope that prevents a dew condensation on an objective lens and allows obtaining a good microscopic image, and a method of preventing a dew condensation on an objective lens. A microscope includes an objective lens having a heater 22 in a cell incubator 3 having a high humidity space. The high humidity space is maintained at 90% to 100% of relative humidity and controlled to be at a predetermined gas temperature. A cultured cell 12 in the cell incubator 3 is observed via the objective lens 1, and the heater 22 is controlled to make the temperature of the objective lens 1 higher than the gas temperature of the high humidity space.Type: GrantFiled: October 26, 2005Date of Patent: June 3, 2008Assignee: Olympus CorporationInventors: Atsuhiro Tsuchiya, Katsuyoshi Yamaguchi, Akitsugu Kagayama, Kazuhiro Hasegawa, Hideaki Endo, Kenichi Koyama
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Patent number: 7333265Abstract: Provided is a microscope having an immersion objective lens, a nozzle, and a liquid supplying mechanism. The immersion objective lens condenses light from a sample through liquid. The nozzle supplies the liquid to an upper surface of the immersion objective lens. The liquid supplying mechanism cooperates with one of a lens moving mechanism that moves the immersion objective lens and a sample moving mechanism that maintains and moves the sample, and moves the nozzle relative to the immersion objective lens to supply the liquid.Type: GrantFiled: April 24, 2006Date of Patent: February 19, 2008Assignee: Olympus CorporationInventors: Kazuhiro Hasegawa, Atsuhiro Tsuchiya, Akitsugu Kagayama, Takashi Yoneyama, Katsuyoshi Yamaguchi
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Patent number: 7324324Abstract: A multilayer electronic component is composed of a ceramic body obtained by laminating a plurality of ceramic layers via a conductor layer. The conductor layer is a plated film and extracted to one end face of the ceramic body, thereby contributing to the formation of capacity. A peripheral edge portion of the conductor layer composed of the plated film is thicker than its inner region. This avoids stripping on the peripheral edge portion of the conductor layer and avoids internal defects such as delamination. A dummy conductor layer may be formed at a distance on the end opposite the end face for extraction.Type: GrantFiled: March 24, 2005Date of Patent: January 29, 2008Assignee: Kyocera CorporationInventors: Koushiro Sugimoto, Katsuyoshi Yamaguchi, Yumiko Itoh
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Patent number: 7224570Abstract: A process for preparing a multilayer ceramic capacitor of the present invention comprises the steps of forming a pattern sheet, laminating a plurality of the pattern sheets and firing to obtain a multilayer ceramic capacitor comprising dielectric layers and internal electrode layers that are alternately laminated. The pattern sheet comprises a dielectric material green sheet and a conductor pattern. The conductor pattern is formed on the dielectric material green sheet and contains a main component selected from Ni, Cu and their alloy, at least one selected from the elements of the groups 3B to 6B of the periodic table and at least one selected from Mn, Co and Fe. The multilayer ceramic capacitor so obtained has an internal electrode layer wherein occurrence of discontinuous portions in conductor patterns is suppressed even after firing.Type: GrantFiled: June 27, 2005Date of Patent: May 29, 2007Assignee: Kyocera CorporationInventors: Katsuyoshi Yamaguchi, Koshiro Sugimoto
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Patent number: 7224522Abstract: An optical microscope apparatus selectively arranges a plurality of optical elements in an optical path, and includes: a manual switch unit capable of manually switching any of the plurality of optical elements; a detection unit detecting an arrangement status of manually switched optical elements; a storage unit storing information relating to the arrangement of the plurality of optical elements for each observing method; and an arrangement control unit arranging the plurality of optical elements according to the detection result by the detection unit and the information stored in the storage unit.Type: GrantFiled: August 31, 2004Date of Patent: May 29, 2007Assignee: Olympus CorporationInventors: Hideyuki Kawanabe, Katsuyoshi Yamaguchi, Mitsuhiko Saito, Junzo Sakurai
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Patent number: 7136708Abstract: A control system of a stage of a microscope includes: a stage transfer unit for transferring the stage for loading a sample perpendicular to an optical axis of the microscope; a transfer command acquisition unit for obtaining command information for a transfer of the stage; a stop position direction storage unit for storing stop position direction information which is information generated according to the command information obtained from the transfer command acquisition unit, and the information about a position and direction when an operation of the stage transfer unit is stopped; and a stage transfer control unit for controlling an operation of stage transfer unit according to the stop position direction information stored in the stop position direction storage unit.Type: GrantFiled: September 9, 2004Date of Patent: November 14, 2006Assignee: Olympus CorporationInventor: Katsuyoshi Yamaguchi
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Publication number: 20060238885Abstract: Provided is a microscope having an immersion objective lens, a nozzle, and a liquid supplying mechanism. The immersion objective lens condenses light from a sample through liquid. The nozzle supplies the liquid to an upper surface of the immersion objective lens. The liquid supplying mechanism cooperates with one of a lens moving mechanism that moves the immersion objective lens and a sample moving mechanism that maintains and moves the sample, and moves the nozzle relative to the immersion objective lens to supply the liquid.Type: ApplicationFiled: April 24, 2006Publication date: October 26, 2006Applicant: OLYMPUS CORPORATIONInventors: Kazuhiro Hasegawa, Atsuhiro Tsuchiya, Akitsugu Kagayama, Takashi Yoneyama, Katsuyoshi Yamaguchi
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Publication number: 20060176367Abstract: By comprising a microscope, means for obtaining an inspection object image, means for setting the view field of the microscope, and storing the position information of a stage corresponding to the view field, means for storing setting information of the microscope and camera unit in the view field, means for storing shooting conditions in the case where time-lapse shooting is applied to the view field, means for obtaining a time-lapse shooting image for each view field, based on the stored position information, setting information stored and shooting conditions and means for collectively displaying the latest taken time-lapse shooting images for each view field, a Photo-micrographing device and its control method capable of shooting each inspection object without being restricted by a shooting waiting time and the like when applying multi-point time-lapse shooting to a plurality of shooting ranges can be provided.Type: ApplicationFiled: January 11, 2006Publication date: August 10, 2006Applicant: Olympus CorporationInventors: Hideaki Endo, Akitsugu Kagayama, Katsuyoshi Yamaguchi
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Publication number: 20060141613Abstract: A culture observation apparatus, which is used for observing a cultured cell while culturing the cell, includes a culture device that cultures the cultured cell, and a microscope used for observing the cultured cell. The culture device includes a first space that is controlled to an environment suitable for culture of the cell, and a second space that is controlled to a lower humidity condition in comparison with the first space. The microscope includes an objective optical unit including an objective lens; the objective optical unit having at least one portion located in the second space, and another portion extending into the first space through an opening formed in a partition wall that separates the first space and the second space, with a gap between the objective optical unit and the partition wall being sealed by a sealing member, and the objective lens includes a plurality of lens groups, with mutual spaces among the lens groups vented to the second space.Type: ApplicationFiled: December 22, 2005Publication date: June 29, 2006Applicant: Olympus CorporationInventors: Atsuhiro Tsuchiya, Ryuichi Hirano, Hideaki Endo, Kenichi Koyama, Kazuhiro Hasegawa, Akitsugu Kagayama, Katsuyoshi Yamaguchi
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Publication number: 20060141609Abstract: A culture observation apparatus, which is used for observing a cultured cell while culturing the cell, includes a culture device that forms a culture space which is controlled to be an environment suitable for culturing the cultured cell; a sample tray that holds a container housing the cultured cell and a culture medium; a microscope that serves for observing the cultured cell; a tray holding mechanism that holds the sample tray in the culture space in a detachable manner with good reproducibility; and a shifting mechanism that relatively shifts the sample tray held by the tray holding mechanism and a light axis of the microscope along a plane that is orthogonal to the light axis, wherein the sample tray has a heater used for heating the sample tray, and is electrically connectable to an energy supplying unit that supplies energy to the sample tray.Type: ApplicationFiled: December 20, 2005Publication date: June 29, 2006Applicant: OLYMPUS CORPORATIONInventors: Akitsugu Kagayama, Ryuichi Hirano, Atsuhiro Tsuchiya, Kenichi Koyama, Kazuhiro Hasegawa, Katsuyoshi Yamaguchi, Hideaki Endo