Patents by Inventor Hiroki Yoshioka

Hiroki Yoshioka 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: 20100256325
    Abstract: A method for producing a polyoxyalkylene derivative including: step (A) in which a polyoxyalkylene derivative having hydroxyl group(s) is reacted with a phthalimide derivative in the presence of an azo reagent and a phosphine reagent; step (B) in which the phthalimide groups of the compound obtained in step (A) are deprotected using a compound having a primary amino group; and step (C) in which impurities derived from the phthalimide derivative and the deprotection reagent are removed by adsorption or extraction.
    Type: Application
    Filed: March 26, 2010
    Publication date: October 7, 2010
    Applicant: NOF CORPORATION
    Inventors: Hiroki YOSHIOKA, Takashi MATANI, Shuichi YOSHIMURA, Kazuhiro HASHIMOTO
  • Publication number: 20100218550
    Abstract: In an accumulator for use in a refrigerating cycle of a vehicle air conditioner or the like, to prevent a refrigerant liquid sucked inside returning to a compressor. A desiccant layer 12 is provided above the middle of a tank 11 to divide the main body into upper and lower chambers 13 and 14. A gas-liquid mixed refrigerant sucked into the lower chamber is subjected to gas-liquid separation in the desiccant layer 12, and only the refrigerant gas is transferred to the upper chamber 13 while the refrigerant liquid and the like are accumulated in the lower chamber 14. An outlet port 16b of the refrigerant suction tube 16, through which the refrigerant is sucked into the main body, is opened within the lower chamber 14, and an inlet port 17a of a refrigerant/oil discharge tube 17, through which refrigerant gas obtained by the gas-liquid separation in the desiccant layer 12 is discharged, is opened within the upper chamber 13.
    Type: Application
    Filed: December 22, 2006
    Publication date: September 2, 2010
    Inventors: Hiroki Yoshioka, Tomohiro Maruyama, Toshihiro Shinbayashi
  • Publication number: 20100194637
    Abstract: A positioning device 20 receives a satellite signal from a satellite positioning system (SPS) satellite and locates a present position, the positioning device 20 including an azimuth calculation section which calculates an azimuth of the SPS satellite corresponding to the received satellite signal, and a reception environment determination section which determines a reception environment including a multipath environment based on the azimuths of the SPS satellites calculated by the azimuth calculation section.
    Type: Application
    Filed: April 7, 2010
    Publication date: August 5, 2010
    Applicant: Seiko Epson Corporation
    Inventor: Hiroki YOSHIOKA
  • Publication number: 20100029899
    Abstract: An object of the present invention is to provide a novel multibranched polyoxyalkylene derivative, and an intermediate for the production thereof. Specifically, the object is to provide a multibranched polyoxyalkylene derivative which can keep a high activity of a bio-related substance modified with the multibranched polyoxyalkylene derivative and which can easily produce the modified substance; an intermediate thereof; and a bio-related substance to which the multibranched polyoxyalkylene derivative is bonded. The novel multibranched polyoxyalkylene derivative according to the invention is a polyoxyalkylene derivative (1) having a functional group reactive with a bio-related substance and the bio-related substance according to the invention has a structure modified with the above polyoxyalkylene derivative (1) by a reaction. Furthermore, the intermediate for the production of the novel multibranched polyoxyalkylene derivative according to the invention is a polyoxyalkylene derivative (A).
    Type: Application
    Filed: February 28, 2008
    Publication date: February 4, 2010
    Applicant: NOF CORPORATION
    Inventors: Kenji Sakanoue, Hiroki Yoshioka, Tomohiro Shirosaki
  • Publication number: 20100000713
    Abstract: Provided are a heat-pump cooler (A) having a first circulation channel (1) and a heater circulator (B) having a second circulation channel (8). A water-cooling condenser (3) in the first circulation channel (1) is placed in the second circulation channel (8), and causes the first coolant to release its heat to the second coolant. The second circulation channel (8) includes a passage switching valve (14) for switching the passage between a passage passing a radiator (10) and a radiator bypass passage (13). During a heating operation, the passage switching valve (14) causes the second coolant to flow into the radiator bypass passage (13), and the air heated by a heater core (12) is introduced as air-conditioned air into the vehicle cabin. During a cooling operation, the passage switching valve (14) causes the second coolant to flow into the radiator (10), and the air cooled by an evaporator (6) is introduced as air-conditioned air into the vehicle cabin.
    Type: Application
    Filed: February 12, 2008
    Publication date: January 7, 2010
    Inventors: Torahide Takahashi, Hiroki Yoshioka, Takashi Fujita
  • Publication number: 20090207089
    Abstract: An antenna element is disclosed. A conductive plate is adapted to be electrically connected to an electric ground, and has a first edge. A second edge opposes the first edge and is formed with a first slit elongated in a first direction. A third edge intersects the first edge. A recessed part intersects the first edge and the third edge. A conductive member elongates from the second edge in the first direction.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 20, 2009
    Inventor: Hiroki Yoshioka
  • Publication number: 20090193830
    Abstract: An air conditioning system includes an air-cooling unit and an air-heating unit. On a first path in the cooling-unit, provided are a compressor for first refrigerant, a condenser for the first refrigerant, front and rear expansion units for the first refrigerant, and an front and rear evaporators to cool air. On a second path in the air-heating unit, provided are a pump for second refrigerant, and front and rear heater cores for the second refrigerant. The condenser is located also on the second path to achieve heat-exchanging between the first refrigerant and the second refrigerant. During air-heating, air heated by the front and rear heater cores is supplied to a vehicle compartment as conditioned air. During air-cooling, air cooled by the front and rear evaporator is supplied to the vehicle compartment as conditioned air.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 6, 2009
    Inventor: Hiroki YOSHIOKA
  • Publication number: 20090079638
    Abstract: In a broadband antenna unit including a ground plate, an antenna element disposed in the vicinity of an end of the ground plate, and a dielectric substrate for mounting the antenna element therein, the antenna element includes a folded plate-shaped monopole antenna portion having a U-shape in cross section, a first conductive element extending from a first location of the folded plate-shaped monopole antenna portion, and a second conductive element extending from a second location of the folded plate-shaped monopole antenna portion. The antenna element is disposed on the side of one side edge of the ground plate. The broadband antenna unit has a feeding point between the ground plate and the antenna element that is disposed at a feeding position apart from the one side by a predetermined distance.
    Type: Application
    Filed: September 24, 2008
    Publication date: March 26, 2009
    Applicant: Mitsumi Electric Co., Ltd.
    Inventor: Hiroki YOSHIOKA
  • Publication number: 20090073038
    Abstract: A positioning device includes a phase calculation section which performs a correlation process of a specific positioning base code replica and a positioning base code from a specific transmission source to calculate a present phase of the positioning base code, an estimated phase calculation section which calculates an estimated phase when estimating the present phase based on the phase used for preceding positioning, a Doppler shift of a frequency of a radio wave carrying the positioning base code, and an elapsed time from the preceding positioning, a phase difference evaluation section which determines whether or not a phase difference between the calculated present phase and the estimated phase is within a phase difference allowable range specified in advance, and a positioning section which locates a present position using the phase within the phase difference allowable range.
    Type: Application
    Filed: November 20, 2008
    Publication date: March 19, 2009
    Applicant: Seiko Epson Corporation
    Inventor: Hiroki YOSHIOKA
  • Publication number: 20090023859
    Abstract: A novel polyoxyalkylene derivative represented by the following formula (1), wherein each symbol is as defined in the specification, which has a functional group capable of reacting with various physiologically active substances according to the object is provided.
    Type: Application
    Filed: February 17, 2006
    Publication date: January 22, 2009
    Applicant: NOF CORPORATION
    Inventors: Kenji Sakanoue, Kenichiro Nakamoto, Yuji Yamamoto, Hiroki Yoshioka
  • Patent number: 7468691
    Abstract: A positioning device includes a phase calculation section which performs a correlation process of a specific positioning base code replica and a positioning base code from a specific transmission source to calculate a present phase of the positioning base code, an estimated phase calculation section which calculates an estimated phase when estimating the present phase based on the phase used for preceding positioning, a Doppler shift of a frequency of a radio wave carrying the positioning base code, and an elapsed time from the preceding positioning, a phase difference evaluation section which determines whether or not a phase difference between the calculated present phase and the estimated phase is within a phase difference allowable range specified in advance, and a positioning section which locates a present position using the phase within the phase difference allowable range.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: December 23, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Hiroki Yoshioka
  • Publication number: 20080198075
    Abstract: In a broadband antenna unit including a ground plate, an antenna element disposed in the vicinity of an end of the ground plate, and a dielectric substrate for mounting the antenna element therein, the antenna element includes a folded plate-shaped monopole antenna portion having a U-shape in cross section and an extending portion extending from the folded plate-shaped monopole antenna portion. The antenna element is disposed on the side of one side edge of the ground plate. The broadband antenna unit has a feeding point between the ground plate and the antenna element that is disposed at a feeding position apart from the one side by a predetermined distance. A ratio between a width of the ground plate and the predetermined distance is substantially 5:2 when a ratio between the width of the ground plate and a width of the folded plate-shaped monopole antenna portion is 2:1.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 21, 2008
    Applicant: Mitsumi Electric Co. Ltd.
    Inventor: Hiroki Yoshioka
  • Publication number: 20080018529
    Abstract: A positioning device 20 receives a satellite signal from a satellite positioning system (SPS) satellite and locates a present position, the positioning device 20 including an azimuth calculation section which calculates an azimuth of the SPS satellite corresponding to the received satellite signal, and a reception environment determination section which determines a reception environment including a multipath environment based on the azimuths of the SPS satellites calculated by the azimuth calculation section.
    Type: Application
    Filed: July 17, 2007
    Publication date: January 24, 2008
    Applicant: Seiko Epson Corporation
    Inventor: Hiroki Yoshioka
  • Publication number: 20070252757
    Abstract: A positioning device includes a phase calculation section which performs a correlation process of a specific positioning base code replica and a positioning base code from a specific transmission source to calculate a present phase of the positioning base code, an estimated phase calculation section which calculates an estimated phase when estimating the present phase based on the phase used for preceding positioning, a Doppler shift of a frequency of a radio wave carrying the positioning base code, and an elapsed time from the preceding positioning, a phase difference evaluation section which determines whether or not a phase difference between the calculated present phase and the estimated phase is within a phase difference allowable range specified in advance, and a positioning section which locates a present position using the phase within the phase difference allowable range.
    Type: Application
    Filed: April 27, 2007
    Publication date: November 1, 2007
    Applicant: Seiko Epson Corporation
    Inventor: Hiroki Yoshioka
  • Publication number: 20060108030
    Abstract: An aluminum alloy for cutting processing consists essentially of Cu: 1 to 6.5 mass %, Zn: 0.05 to 1 mass %, Bi: 0.1 to 1 mass %, Sn: 0.1 to 1 mass %, B: 100 mass ppm or less, or further includes at least one element as a selective additional element selected from the group consisting of Fe: 0.05 to 1 mass %, Mg: 0.01 to 0.3 mass %, Si: 0.05 to 1 mass % and Ti: 0.01 to 0.5 mass %.
    Type: Application
    Filed: October 9, 2003
    Publication date: May 25, 2006
    Applicant: Showa Denko K.K.
    Inventors: Hiroki Yoshioka, Masaki Yamanaka, Hideaki Matsuoka
  • Publication number: 20060027291
    Abstract: A first aluminum alloy of the present invention comprises Mg: 0.3-6 mass %, Si: 0.3-10 mass %, Zn: 0.05-1 mass %, Sr: 0.001-0.3 mass % and the balance being Al and impurities. A second aluminum alloy further contains one or more selective additional elements selected from the group consisting of Cu, Fe, Mn, Cr, Zr, Ti, Na and Ca. Furthermore, a third aluminum alloy comprises Mg: 0.1-6 mass %, Si: 0.3-12.5 mass %, Cu: 0.01 mass % or more but less than 1 mass %, Zn: 0.01-3 mass %, Sr:0.001-0.5 mass % and the balance being Al and impurities. Furthermore, a fourth aluminum alloy further includes one or more optional additional elements selected from the group consisting of Ti, B, C, Fe, Cr, Mn, Zr, V, Sc, Ni, Na, Sb, Ca, Sn, Bi and In.
    Type: Application
    Filed: September 28, 2005
    Publication date: February 9, 2006
    Applicant: SHOWA DENKO K.K.
    Inventors: Hideaki Matsuoka, Masaki Yamanaka, Hiroki Yoshioka, Yasuo Okamoto, Masakatsu Kitamura
  • Patent number: 6880628
    Abstract: A plurality of heat transfer tube elements 17 are laminated with outer fins disposed between the heat transfer tube elements 17 in order to form a core. A gas flows between the outer fins. A passage 24 allowing flow of a cooling medium in a direction orthogonal to the direction of gas flow is formed in each heat transfer tube element 17. The passage 24 has a large passage 31 having a large width disposed upstream with respect to the direction a of gas flow and a small passage group 33 comprising a plurality of small passages 32 being more narrow than the large passage 31 and being disposed downstream with respect to the direction of gas flow. This arrangement allows non-uniformity in the temperature distribution of a gas flow to be suppressed to a low level with a downsizing, low-weight and low-cost device.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: April 19, 2005
    Assignee: Calsonic Kansei Corporation
    Inventors: Kazue Yoshida, Hiroki Yoshioka
  • Publication number: 20030178189
    Abstract: In each space 41, a plurality of outer fins 43 are stacked to be arranged, and partition boards 45 are individually arranged between the outer fins 43. At least on edges of each partition board 45 on sides of tank formation portions 37, bent portions 47 and 49 bent in the stacking direction of the tube sheets 29 are formed. Moreover, the position in the stacking direction of an edge 61a of a partition board 61 on a side of the tank formation portions 37, 37A, or 37B is different from the position in the stacking direction of a joint portion of the tank formation potions 37, 37A, or 37B, respectively.
    Type: Application
    Filed: February 19, 2003
    Publication date: September 25, 2003
    Applicant: CALSONIC KANSEI CORPORATION
    Inventors: Hiroyuki Yoshida, Hiroki Yoshioka
  • Patent number: 6604576
    Abstract: An air conditioning system for a vehicle has a first cycle including a compressor, a first condenser, a second condenser, a liquid tank, an expansion valve and an evaporator which are connected through pipes to form a first refrigerant circulation circuit through which a refrigerant flows from an outlet of the compressor to an inlet of the compressor while changing the phase. The first cycle causes the evaporator to act as a cooler when operated. The system further has a second cycle including the compressor, the second condenser, the liquid tank, the evaporator and the evaporator which are connected through pipes to form a second refrigerant circulation circuit through which the refrigerant flows from the outlet of the compressor to the inlet of the compressor while changing the phase. The second cycle causes the condenser to act as a heater and the evaporator to act as a cooler when operated. The first and second cycles are switched by switch means.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: August 12, 2003
    Assignee: Calsonic Kansei Corporation
    Inventors: Yoshitoshi Noda, Hiroyuki Yamaguchi, Tadayoshi Tajima, Hiroki Yoshioka, Toshio Ohashi, Kenichi Abe
  • Patent number: D588115
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: March 10, 2009
    Assignee: Mitsumi Electric Co., Ltd
    Inventor: Hiroki Yoshioka