Patents by Inventor Shin Takahashi

Shin Takahashi 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: 8247129
    Abstract: A fuel cell provided with a reforming catalyst is located in a high-temperature portion on the anode side to cool the high-temperature portion by means of heat absorption of reforming reaction, or a combustion catalyst is provided in a low-temperature portion on the anode side to heat the low-temperature portion by means of heat generation of combustion reaction, or both of the catalysts are provided, by which the occurrence of variations in temperature in a cell reaction region of anode is prevented.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: August 21, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Hiromi Tokoi, Nariyoshi Kobayashi, Shin Takahashi
  • Publication number: 20120181666
    Abstract: A silicon device has a flat panel shape which is a polygon in a plan view, and at least one corner of the polygon includes two sides adjacent to each other out of plural sides of the polygon and a corner curve portion connected to the two sides so as to connect the two sides.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 19, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shin TAKAHASHI, Junichi TAKEUCHI
  • Patent number: 8219143
    Abstract: A portable wireless device includes a first communication unit having a loop antenna that communicates with external devices using a first usable frequency band, and an RFID chip that performs predetermined processing with respect to information communicated by the loop antenna. A second communication unit includes a main antenna that communicates by a second usable frequency band that is higher than the first usable frequency band, and a communication processing unit that performs predetermined processing with respect to information communicated by the main antenna. A reactance component of the loop antenna is adjusted such that a high-order secondary resonance point of the first usable frequency band does not overlap the second usable frequency band.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: July 10, 2012
    Assignee: Kyocera Corporation
    Inventors: Kenji Waku, Tadeshi Koyama, Kunihiko Watanabe, Masato Harikae, Shin Takahashi, Daisuke Togashi, Yoshiaki Hiraoka
  • Patent number: 8206867
    Abstract: A flat tube double-sided power generation type fuel cell is comprised of the combination of one or more of the following means (1) and (2). That is, means (1) for optimizing the constitution of an current-collecting electrode thereby making the flow of fuel or air uniform over the entire region, and means (2) for dividing the current-collecting electrode into two regions thereby shunting the flow of the fuel into a flow directing to the anode of the cell and a flow directly directing to the downstream, for increasing the power generation amount in the cell, the means being applicable also to a cell of a cylindrical shape.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: June 26, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Hiromi Tokoi, Nariyoshi Kobayashi, Kazuo Takahashi, Tadashi Yoshida, Akihiko Noie, Shin Takahashi, Akira Gunji
  • Patent number: 8203311
    Abstract: There is provided a battery condition detecting apparatus which comprises: means for detecting a discharging and charging current from the battery; means for detecting whether or not a negative acceleration of charging current changes in its sign from negative to zero during charging of the battery based on a result of detecting the discharge current; means for calculating an integrated charged capacity of the battery by integrating an instantaneous charging current during charging of the battery; means for controlling an alternator mounted in an automotive vehicle so as to control an output electric power generated by the alternator such that a discharging current from the battery is kept to be constant; and means for determining that the charge polarization is cancelled, if the integrated discharged capacity becomes to be equal to the integrated charged capacity.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: June 19, 2012
    Assignee: Denso Corporation
    Inventors: Shin Takahashi, Tadatoshi Asada
  • Patent number: 8173317
    Abstract: In a fuel cells power generation system provided with a power generation module having a plurality of fuel cells, the structure is made such that a cross sectional area of at least one of a fuel flow path and an air flow path is larger in an inner portion of the power generation module and smaller in an outer portion thereof. Accordingly, gas tends to flow through the inner portion of the power generation module, a gas flow rate is quickened, and it is possible to uniformize a molar flow rate of the fuel and the air supplied to the fuel cell, even in a state in which a temperature distribution of the module is not uniform within the power generation module.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: May 8, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Akira Gunji, Hiromi Tokoi, Shin Takahashi
  • Publication number: 20120107708
    Abstract: A temperature adjustment member is arranged to control temperature of a reformer independently of temperature of a fuel cell module. The reformer is structured as a three-fluid heat exchanger into which a fluid is introducible whose temperature is higher or lower than exhaust-gas temperature of the fuel cell module. Then, the temperature of the reformer is controlled independently of operation temperature of the fuel cell by introducing the higher-temperature or lower-temperature fluid into the reformer. Also, a high-temperature or low-temperature gas is mixed with the module's exhaust gas, thereby adjusting temperature of the exhaust gas itself. This also controls the temperature of the reformer independently of the operation temperature of the fuel cell.
    Type: Application
    Filed: January 5, 2012
    Publication date: May 3, 2012
    Inventors: Shin Takahashi, Hiromi Tokoi, Akira Gunji, Toshiya Abe, Takeshi Saito
  • Patent number: 8114546
    Abstract: A temperature adjustment member is arranged to control temperature of a reformer independently of temperature of a fuel cell module. The reformer is structured as a three-fluid heat exchanger into which a fluid is introducible whose temperature is higher or lower than exhaust-gas temperature of the fuel cell module. Then, the temperature of the reformer is controlled independently of operation temperature of the fuel cell by introducing the higher-temperature or lower-temperature fluid into the reformer. Also, a high-temperature or low-temperature gas is mixed with the module's exhaust gas, thereby adjusting temperature of the exhaust gas itself. This also controls the temperature of the reformer independently of the operation temperature of the fuel cell.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: February 14, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Shin Takahashi, Hiromi Tokoi, Akira Gunji, Toshiya Abe, Takeshi Saito
  • Publication number: 20110294012
    Abstract: It is an objective of the present invention to provide a lithium-ion rechargeable battery anode which can control the volume change of a primary particle of a negative-electrode active material other than a carbon-based material and that can prevent cracks due to stress caused by the volume change from occurring and extending. There is provided an anode for a lithium-ion rechargeable battery including a primary particle of a negative-electrode active material, a conductive material, and a binder, the negative-electrode active material including at least one of silicon and tin, and at least one element selected from elements that do not chemically react with lithium, in which holes are present both in an inner core region in the central region of the primary particle of the negative-electrode active material and in a periphery region that covers the inner core region.
    Type: Application
    Filed: May 27, 2011
    Publication date: December 1, 2011
    Inventors: Takashi Nakabayashi, Shin Takahashi, Motoki Ohta, Yoshihito Yoshizawa
  • Publication number: 20110217592
    Abstract: A cathode for a lithium-ion secondary battery is provided, which not only efficiently absorbs oxygen released from a solid solution based cathode active material when initial charging is applied but prevents a cathode energy density from lowering. Further, a lithium-ion secondary battery, a vehicle and a power storage system equipped with the lithium-ion secondary battery are provided. The cathode for a lithium-ion secondary battery comprises a cathode active material represented by the general formula: xLi2MO3-(1?x)LiM?O2 (where 0<x<1; M is at least one element selected from the group of Mn, Ti and Zr; and M? is at least one element selected from the group of Ni, Co, Mn, Fe, Ti, Zr, Al, Mg, Cr and V), and an oxygen absorbing substance having both oxygen absorbing and lithium-ion intercalation/de-intercalation abilities. Herein, the oxygen absorbing substance is disposed on the cathode active material.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 8, 2011
    Inventors: Akira GUNJI, Shin TAKAHASHI, Takashi NAITO, Tadashi FUJIEDA
  • Publication number: 20110215764
    Abstract: An in-vehicle charge control system includes a vehicle-state detector that detects a running state of a vehicle, a battery-state detector that detects a charge level of an in-vehicle battery, a fuel-efficiency-enhancement controller that predicts a discharge amount to be discharged by the battery under a discharge condition, sets a lower limit of the battery charge level on the basis of the battery charge level detected by the detector such that the lower limit of the battery charge level is higher than a battery charge level at which the battery begins to degrade by the predicted discharge amount, and controls a power generation amount of a vehicle generator according to the vehicle state detected by the detector. The system with this configuration can maintain the battery charge level and enhance the fuel efficiency simultaneously under practical use conditions.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 8, 2011
    Applicant: DENSO CORPORATION
    Inventors: Shin TAKAHASHI, Shunichi MAEDA
  • Publication number: 20110207508
    Abstract: An object of the present invention is to provide a mobile terminal device capable of utilizing a conductive portion further more effectively. A cellular telephone device includes: a key switch, of which electrical state changes depending on an operation on an operation unit; a CPU that is connected to the key switch, and detects an operation on the operation unit based on change in the electrical state of the key switch; a power supply unit that is electrically connected to the key switch; and an RF circuit unit that is connected to the power supply unit, and processes a signal resonated by the key switch.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 25, 2011
    Applicant: KYOCERA Corporation
    Inventors: Shin Takahashi, Tadashi Koyama, Mitsuhiro Nishizono, Takumi Ogata
  • Publication number: 20110195321
    Abstract: The present invention is intended to suppress the increase of contact resistance due to dimensional changes at the time of charge and discharge in a rechargeable metal-air battery, thereby improving battery performance and service life. The rechargeable metal-air battery of the present invention includes a negative electrode for storing and releasing metal ions; a positive electrode using oxygen as an active material; and an electrolyte membrane placed between the negative electrode and the positive electrode, and is characterized in that a flexible dimension-absorbing member is disposed on the negative electrode side, wherein the dimension-absorbing member is an elastic body formed of a substance which changes reversibly.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 11, 2011
    Inventors: Shin TAKAHASHI, Kazuhiro YOSHIDA, Kazushige KOHNO
  • Publication number: 20110183730
    Abstract: A portable wireless device which effectively uses a space in a case while maintaining communication qualities by reducing antenna gain deterioration even when a plurality of antennas of different frequency bands are arranged adjacent to each other. The portable wireless device is provided with patterns for adding a band disturbing element, which is composed of beads and a parallel resonance circuit, to a part where one side of an antenna pattern of a magnetic field antenna is closed to between the main antenna and the magnetic field antenna is more easily generated. The band disturbing element may be composed of ferrite core or the like.
    Type: Application
    Filed: March 28, 2008
    Publication date: July 28, 2011
    Applicant: KYOCERA CORPORATION
    Inventors: Kenji Waku, Kunihiko Watanabe, Shin Takahashi, Tadashi Koyama
  • Patent number: 7972742
    Abstract: It is an object to shorten current path between an anode and a cathode in a tube type SOFC and thereby to decrease resistance. The tube type fuel cell contains a tube type electrolyte placed between an anode and a cathode, wherein an auxiliary electrode is provided over the entire region of a cell reaction region on at least one of the anode and cathode. The current path is shortened and resistance is decreased, because the anode auxiliary electrode or cathode auxiliary electrode is provided over the entire peripheral surface of the anode or cathode, and the current path in the auxiliary electrode has a greatly increased cross-sectional area.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: July 5, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Hiromi Tokoi, Shin Takahashi, Akira Gunji, Nariyoshi Kobayashi
  • Publication number: 20110130102
    Abstract: The communication device includes: a first body; a second body; a connecting portion that connects the first body and the second body, so as to be capable of switching between a closed state in which the first body and the second body are superimposed with each other, and an opened state in which a degree of mutual superimposition is smaller than that of the closed state; a first conductive portion that is disposed in the first body; a second conductive portion that is disposed in the second body; a signal line that electrically connects the first conductive portion and the second conductive portion via the inside of the connecting portion; a first antenna, which is disposed in at least one of the first body and the second body, and which is electrically connected to the first conductive portion or the second conductive portion; and a second antenna, which is disposed in at least one of the first body and the second body, and which is capacitively coupled with the first conductive portion or the second conduc
    Type: Application
    Filed: May 28, 2009
    Publication date: June 2, 2011
    Applicant: KYOCERA CORPORATION
    Inventors: Mitsuhiro Nishizono, Shin Takahashi
  • Patent number: 7945298
    Abstract: A wireless terminal able to suppress deterioration of antenna characteristics due to opening/closing of the terminal, that is, a wireless terminal comprising a first housing and a second housing having inside them circuit boards on which ground conductive layers are formed, a connection member for connecting ends of the first housing and second housing with each other so that they can be open or closed, a built-in antenna arranged in one housing between the first housing and second housing and at the end on an opposite side to the connection member, and a ground conductive member for electrically connecting ground conductive layers of the circuit boards arranged in the first housing and second housing to each other, constituted so that a portion of the connection member includes a conductive member, and the ground conductive member is brought into contact with the conductive member.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: May 17, 2011
    Assignee: Kyocera Corporation
    Inventor: Shin Takahashi
  • Patent number: 7927751
    Abstract: The present invention provides a fuel cell power system and a power generating method in which the rise of concentration of water vapor and carbon dioxide in the direction of the anode gas flow is controlled to enhance the electromotive force in the downstream region of the anode gas flow, thereby improving the power generating efficiency. A mixed gas of a hydrocarbon and water vapor and/or carbon dioxide or a reformed version of said mixed gas having an oxygen atom/carbon atom ratio (O/C ratio) of 2 or higher is supplied from a spot upstream in the direction of the anode gas flow while a hydrocarbon or a mixed gas of a hydrocarbon and water vapor and/or carbon dioxide having an O/C ratio of lower than 2 is supplied supplementally from a spot downstream, and the gas supplied supplementally from the downstream side is reformed by making use of water vapor and carbon dioxide generated by the electrochemical reactions upstream of the anode gas flow and is utilized for power generation.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: April 19, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Akira Gunji, Hiromi Tokoi, Shin Takahashi
  • Publication number: 20100248621
    Abstract: A system and method for a mobile electronic device operable to receive signals having a plurality of frequencies using an antenna comprising a plurality of conductors is disclosed. A first conductor operable to resonant with a first frequency band is coupled to a second conductor operable to resonant with a second frequency band. The second conductor is coupled to a ground, if the first conductor is coupled to a power supply. The second conductor is coupled to the power supply, if the first conductor is coupled to the ground.
    Type: Application
    Filed: March 26, 2010
    Publication date: September 30, 2010
    Applicant: Kyocera Corporation
    Inventor: Shin Takahashi
  • Patent number: D652070
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: January 10, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shin Takahashi