Patents by Inventor Atsushi Shimada

Atsushi Shimada 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: 8764636
    Abstract: An electronic endoscopic apparatus of the present invention can improve the usage efficiency of a circuit of a control section therein and can improve the reliability of operations of the circuit. The electronic endoscopic apparatus is an electronic endoscopic apparatus having multiple operation modes to be executed exclusively, the apparatus internally including an FPGA 1 that internally includes a CPU 10 and peripheral circuits and controls the execution of the operation modes and a switching request detecting section that detects a request for switching to the operation mode to be executed, wherein the internal configuration of the FPGA 1 is changed based on the detection result by the switching request detecting section.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: July 1, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventors: Atsushi Shimada, Yusuke Yabe, Tomoya Takahashi, Susumu Hashimoto
  • Publication number: 20140161992
    Abstract: There is provided a Cu wiring forming method for forming a Cu wiring by filling Cu in a recess, which is formed in a predetermined pattern in a Si-containing film of a substrate. The Cu wiring forming method includes forming a Mn film, which becomes a self-aligned barrier film by reaction with an underlying base, at least on a surface of the recess by chemical vapor deposition, forming a Cu film by a physical vapor deposition to fill the recess with the Cu film, and forming a Cu wiring in the recess by polishing the entire surface of the substrate by a chemical mechanical polishing.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 12, 2014
    Applicant: Tokyo Electron Limited
    Inventors: Tadahiro ISHIZAKA, Kenji SUZUKI, Atsushi SHIMADA
  • Publication number: 20140139145
    Abstract: A light source apparatus for an endoscope, which has a lamp, a power source, a light adjustment control module that controls power to be supplied to the lamp within a range not more than an upper limit power based on a brightness instruction signal, and a continuous lighting sensing module that measures a continuous lighting time period from time when the lamp shifts from being extinguished to being lighted, compares the continuous lighting time period with a predetermined upper limit time period, and initializes the continuous lighting time period while the lamp is extinguished, wherein the upper limit power is set to a first upper limit power when the continuous lighting time period has not reached the upper limit time period, and changed to a second upper limit power lower than the first upper limit power in a stepwise manner when the upper limit time period has not been reached.
    Type: Application
    Filed: December 3, 2013
    Publication date: May 22, 2014
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Atsushi SHIMADA, Tomoya TAKAHASHI, Takahiro MASAKI, Mutsumi OSHIMA, Yasukazu KOGEN
  • Publication number: 20140048022
    Abstract: An engine system includes a reformer for driving an engine by supplying the engine with a reformed fuel which the reformer reforms from a pre-reformed fuel. The reformer includes a reforming catalyst for reforming the pre-reformed fuel by a water vapor reforming reaction. The engine system also includes a pre-reformed fuel supply adjustment unit for supplying the pre-reformed fuel to the reformer. The reformer includes an extremity portion provided in an engine cylinder. The pre-reformed fuel supply adjustment unit supplies the pre-reformed fuel to the reformer during a suction stroke of the engine, and the reformed fuel is directly supplied from the reformer into the engine cylinder.
    Type: Application
    Filed: October 30, 2013
    Publication date: February 20, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Atsushi SHIMADA, Takao ISHIKAWA, Tadashi SANO
  • Patent number: 8596231
    Abstract: Disclosed is an engine system with a reformer, the engine system comprising a reformer and driving an engine using, as a fuel, a reformed fuel produced by reforming pre-reformed fuel with the reformer, in which the reformer is connected with both a pre-reformed fuel supply adjustment unit which adjusts the amount of the pre-reformed fuel supplied to the reformer and a reformed fuel supply adjustment unit which adjusts the amount of reformed fuel supplied to the engine, and the reformer is installed adjacent to the engine combustion chamber via the reformed fuel supply adjustment unit.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: December 3, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Shimada, Takao Ishikawa, Tadashi Sano
  • Patent number: 8537210
    Abstract: A light source device for an endoscope, characterized by having a light source for supplying illuminating light to an object, endoscope connection unit optically connected to an endoscope that has discrimination information for discriminating the kind of endoscope, discrimination unit for discriminating the endoscope based on the discrimination information of the endoscope connected to the endoscope connection unit, change unit for the changing illumination condition of the illuminating light, and control unit for controlling the change unit based on the result of discrimination by the discrimination unit.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: September 17, 2013
    Assignee: Olympus Corporation
    Inventors: Koji Omori, Mutsumi Ohshima, Yasukazu Kogen, Tomoya Takahashi, Atsushi Shimada
  • Patent number: 8454500
    Abstract: An endoscope system of the present invention has a video processor and a light source device, and an endoscope can be connected thereto. And a control portion of the light source device detects connection with the endoscope and the video processor, detects connection with the video processor and the light source device and detects the type of the endoscope by an endoscope detection portion. And when non-connection of the endoscope and the video processor is detected, or non-connection of the video processor and the light source device is detected, the control portion controls so that the light amount of illumination light supplied from the light source device to the endoscope becomes a predetermined light amount according the detected type of the endoscope.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: June 4, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventors: Yusuke Yabe, Tomoya Takahashi, Atsushi Shimada, Susumu Hashimoto
  • Patent number: 8397680
    Abstract: An engine system includes a medium which chemically repeats storage and release of hydrogen to provide an engine system where CO2 emissions can be suppressed and system efficiency is excellent. The engine system includes a hydrogen supply device for producing hydrogen rich gas from a medium which chemically repeats the storage and release of hydrogen, and drives an engine using the hydrogen rich gas produced in the hydrogen supply device as one of the fuels. This engine system is characterized by comprising a waste heat supply device for supplying waste heat of the engine to hydrogen supply device, a generator which generates electricity by power of the engine, an energy storage device for storing electric power produced by the generator, and a motor for converting electric power discharged from the energy storage device into power.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: March 19, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Shimada, Takao Ishikawa, Masatoshi Sugimasa
  • Publication number: 20120145096
    Abstract: An engine system with a reformer, wherein an unreformed fuel is reformed by the reformer mounted in an exhaust pipe, and wherein a reformed fuel containing hydrogen is supplied to an engine. The engine system with a reformer includes a controller which, when the hydrogen generated by the reformer is supplied to the engine, determines a target heat generation beginning timing in accordance with a load applied to an engine, an engine speed, and an air excess ratio of an air-fuel mixture, and which controls an ignition timing of the engine so that a difference between a current heat generation beginning timing and the target heat generation beginning timing of the engine is within a predetermined range.
    Type: Application
    Filed: August 18, 2010
    Publication date: June 14, 2012
    Applicant: HITACHI, LTD.
    Inventors: Atsushi Shimada, Takao Ishikawa, Yasuo Yoshii
  • Publication number: 20120110984
    Abstract: In an engine system with a reformer being installed in an exhaust pipe to reform a fuel, a control valve for controlling a flow rate of exhaust gas is provided downstream from an installed position of the reformer in the exhaust pipe. In the engine system with the reformer, since a part of the exhaust gas can be trapped in a space between the reformer and an engine chamber by closing the control valve during an exhaust stroke, the reforming efficiency of the reformer can be heightened.
    Type: Application
    Filed: December 25, 2009
    Publication date: May 10, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Atsushi Shimada, Takao Ishikawa, Tadashi Sano
  • Patent number: 8171894
    Abstract: An engine system in which hydrogen is employed as a fuel, including a reactor configured to cause a reaction using a catalyst, in which the reactor is constituted by alternately disposing plural exhaust passages and plural fuel passageways of the engine system with a wall interposed therebetween; at least one carrier configured to carry the catalyst and to be formed in a substantially rectangular plate shape is fitted in at least one of fuel passageways; and the carrier is provided with a plate portion which has a surface disposed in a fuel flowing direction and is formed in a substantially rectangular plate shape and at least one slit portion which divides the surface of the plate portion in the fuel flowing direction.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: May 8, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Sano, Shigenori Togashi, Takao Ishikawa, Atsushi Shimada, Kenichi Souma
  • Patent number: 8096269
    Abstract: It is an object of the invention to provide an engine system using a small-sized heat exchanger having a high efficiency and a stable performance for heating and vaporizing a hydrogen medium supplied to a reactor vessel.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: January 17, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Sano, Takao Ishikawa, Atsushi Shimada
  • Patent number: 8066409
    Abstract: A light source device includes a light-condensing device that condenses an illumination light that is emitted from a light source lamp. The light-condensing device includes at least one lens, a lens holder in which a lens is fixedly provided, and a lens holding member. The lens holding member is a member for fixing a lens to the lens holder. The lens holding member causes at least one circumferential portion of the lens to protrude to the lens holder side, and causes the optical axis of the lens to match the optical axis of the illumination light.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: November 29, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventors: Seiki Toriyama, Mutsumi Oshima, Shinji Yamashita, Keiichi Tsuchida, Tomoya Takahashi, Atsushi Shimada, Yusuke Yabe, Kyosuke Mizuno
  • Publication number: 20110265736
    Abstract: Disclosed is an engine system with a reformer, the engine system comprising a reformer and driving an engine using, as a fuel, a reformed fuel produced by reforming pre-reformed fuel with the reformer, in which the reformer is connected with both a pre-reformed fuel supply adjustment unit which adjusts the amount of the pre-reformed fuel supplied to the reformer and a reformed fuel supply adjustment unit which adjusts the amount of reformed fuel supplied to the engine, and the reformer is installed adjacent to the engine combustion chamber via the reformed fuel supply adjustment unit.
    Type: Application
    Filed: June 30, 2009
    Publication date: November 3, 2011
    Inventors: Atsushi Shimada, Takao Ishikawa, Tadashi Sano
  • Patent number: 8033255
    Abstract: An engine system comprising an engine, hydrogen medium capable of repeating chemically storing and discharging hydrogen, an exhaust gas pipe from said engine; and a reactor unit bearing a catalyst; wherein the hydrogen generated using the heat of the exhaust gas in said reactor unit or the mixture of the hydrogen and said hydrogen medium being supplied to said engine; wherein said reactor unit includes at least first reactor and second reactor in said exhaust gas pipe and each of said reactors comprises a partition wall disposed between an exhaust gas passage and a hydrogen medium passage; and wherein the thermal resistance of said partition wall of said first reactor positioned on the upstream side is larger than that of said second reactor positioned on the downstream side, and said hydrogen medium is supplied from said first reactor to said second reactor.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: October 11, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Sano, Shigenori Togashi, Takao Ishikawa, Atsushi Shimada
  • Patent number: 8033986
    Abstract: An endoscope control device includes: a safety maintaining circuit for maintaining safety in terms of function or use-purpose of the endoscope control device; a control section for controlling operation of the endoscope control device; and an activation section for activating the control section, wherein the safety maintaining circuit is formed in the same device as at least one of the control section and the activation section.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: October 11, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventors: Atsushi Shimada, Yusuke Yabe, Susumu Hashimoto, Tomoya Takahashi
  • Patent number: 8001767
    Abstract: A first, a second, and a third combustion region are defined by the air-fuel ratio of the mixture gas feeding combustion. Upon switching of combustion regions from the first combustion region to the third combustion region and from the third combustion region to the first combustion region, namely, when the second combustion region is passed, the mass of NOx emission downstream of an exhaust purifying device and the torque variation are estimated online. Based on the estimated value of the mass of NOx emission and the estimated value of the torque variation, the mass of intake air introduced into the combustion chamber is adjusted in a manner different from when normal, such as by changing the amount of lift of the intake valve, for example, so as to reduce the mass of NOx emission downstream of the exhaust purifying device and the torque variation below predetermined values upon passing of the second combustion region.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: August 23, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Hiromu Kakuya, Shinji Nakagawa, Shiro Yamaoka, Atsushi Shimada
  • Publication number: 20110082803
    Abstract: Upon reception of a retrieval request containing a retrieval key word from a client, a business flow registration information table is searched based on the retrieval key word to acquire a flow ID and a node ID of a business flow containing the retrieval key word. The flow ID and the node ID acquired are stored in a retrieval result table. With reference to a business flow operation history table, the node use count of the acquired node ID is divided by the flow use count of the acquired flow ID to calculate a node pass ratio. The calculated node pass ratio is stored in a node pass ratio table. With the node pass ratio as a score, the node pass ratio information is sorted in the descending order of the score. The retrieval request display data is generated in the order of sorting, and sent to the client.
    Type: Application
    Filed: February 2, 2010
    Publication date: April 7, 2011
    Inventors: Miyuki KOWA, Yasuhiko Uchida, Atsushi Shimada, Kazuyuki Ichikawa
  • Patent number: 7789532
    Abstract: A light source device includes a light source lamp, a rotary plate, a heat absorbing portion, and a filter mounting member. The light source lamp emits illumination light. The rotary plate includes multiple opening portions that are selectively disposed in the illumination light path of the light source lamp. A reflective filter that reflects light of a wavelength that acts a heat source in illumination light is provided in one of the multiple opening portions of the rotary plate. The heat absorbing portion absorbs heat included in reflected light reflected by the reflective filter in the opening portion. The filter mounting member disposes the reflective filter in the opening portion at a predetermined angle of inclination to the optical axis of the illumination light. By disposing the inclined reflective filter in the illumination light path, reflected light reflected by the reflective filter is reflected towards the heat absorbing portion.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: September 7, 2010
    Assignee: Olympus Medical Systems Corp.
    Inventors: Seiki Toriyama, Mutsumi Oshima, Shinji Yamashita, Keiichi Tsuchida, Tomoya Takahashi, Atsushi Shimada, Yusuke Yabe, Kyosuke Mizuno
  • Patent number: 7654232
    Abstract: A hydrogen engine system for driving an engine with hydrogen gases as a fuel comprises a hydrogenated liquid fuel tank, which holds a hydrogenated liquid fuel in a liquid phase, a preheater, to which the hydrogenated liquid fuel and a dehydrogenated fuel from the hydrogen feed unit are transported and which preheats the hydrogenated liquid fuel owing to heat exchange, an vaporizer, to which the hydrogenated liquid fuel as preheated and exhaust gases of the engine are transported and which heats the hydrogenated liquid fuel to put the same in a vapor phase, and a hydrogen feed unit, to which the hydrogenated liquid fuel as vaporized and exhaust gases of the engine are transported and which generates hydrogen gases owing to dehydrogenation to transport the same to the engine.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: February 2, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Hirotoshi Ishimaru, Tetsuro Miyamoto, Takao Ishikawa, Atsushi Shimada, Masatoshi Sugimasa