Patents by Inventor Osamu Matsumoto

Osamu Matsumoto 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: 7663337
    Abstract: A frequency converter for outputting a power to drive a motor, having: an inverter unit for inverting a d.c. power to an a.c. power; a control unit for controlling the inverter unit; and a housing for supporting at least the inverter unit and control unit, wherein a rise time change unit is provided in the housing, the rise time change unit changes a rise time of a waveform of a voltage output from the inverter unit.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: February 16, 2010
    Assignee: Hitachi Industrial Equipment System Co.
    Inventors: Tadahiro Shimozono, Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata
  • Publication number: 20090326065
    Abstract: The present invention provides an aqueous pesticidal composition consisting of a pyrethroid compound represented by the formula (1): wherein R represents a hydrogen atom, a methyl group, a methoxy group or a methoxymethyl group, and X and Y independently represent a chlorine atom, a methyl group or a hydrogen atom; an alkylbenzene sulfonate, a polyoxyethylene styrenated phenyl ether having an HLB of 11 to 13, a hydrophilic solvent, water, and optionally a formulation additive, which has excellent storage stability.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 31, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Osamu Matsumoto, Lay Lee Lim
  • Patent number: 7599106
    Abstract: The present invention relates to an optical mask at low cost and so on having a structure capable of reducing further a peak of beam intensity caused by diffraction. The optical mask is constructed by overlapping a first mask and a second mask. The first mask and second mask each are a serrated aperture mask. The schematic shapes of the respective apertures of the first mask and second mask are almost rectangular and identical to each other. The fringe defining the aperture of the first mask is machined in a serrated shape, and the fringe defining the aperture of the second mask also is machined in a serrated shape. In the optical mask, the first mask and second mask are overlapped so that the serrations of the fringes defining the respective apertures of the first mask and second mask are located alternately.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: October 6, 2009
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Osamu Matsumoto, Toshiyuki Kawashima, Tadashi Kanabe
  • Publication number: 20090121666
    Abstract: A frequency converter for outputting a power to drive a motor, having: an inverter unit for inverting a d.c. power to an a.c. power; a control unit for controlling the inverter unit; and a housing for supporting at least the inverter unit and control unit, wherein a rise time change unit is provided in the housing, the rise time change unit changes a rise time of a waveform of a voltage output from the inverter unit.
    Type: Application
    Filed: January 15, 2009
    Publication date: May 14, 2009
    Inventors: Tadahiro SHIMOZONO, Takeshi OBATA, Koichiro SAITO, Osamu MATSUMOTO, Kouji OBATA
  • Patent number: 7511450
    Abstract: A frequency converter for outputting a power to drive a motor, having: an inverter unit for inverting a d.c. power to an a.c. power; a control unit for controlling the inverter unit; and a housing for supporting at least the inverter unit and control unit, wherein a rise time change unit is provided in the housing, the rise time change unit changes a rise time of a waveform of a voltage output from the inverter unit.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 31, 2009
    Assignee: Hitachi Industrial Equipment System Co., Ltd.
    Inventors: Tadahiro Shimozono, Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata
  • Publication number: 20080220669
    Abstract: The subject invention provides a hydraulic saildrive apparatus comprising an upper unit 103 having an input shaft 1 connected to an engine 102 inside a boat, and a lower unit 104 having an output shaft 4 including a propeller shaft 2 and also having a lower portion protruding from the boat's bottom, wherein the upper unit 103 is provided with a hydraulic forward and reverse switching clutch 5 for transmitting the rotation direction of the input shaft 1 to the propeller shaft 2, the clutch 5 being capable of changing the rotation direction between forward and reverse relative to the input shaft 1.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 11, 2008
    Inventors: Toshio Imanaka, Osamu Matsumoto
  • Patent number: 7408323
    Abstract: A frequency converter for outputting a power to drive a motor, having: an inverter unit for inverting a d.c. power to an a.c. power; a control unit for controlling the inverter unit; and a housing for supporting at least the inverter unit and control unit, wherein a rise time change unit is provided in the housing, the rise time change unit changes a rise time of a waveform of a voltage output from the inverter unit.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: August 5, 2008
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Tadahiro Shimozono, Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata
  • Publication number: 20080135641
    Abstract: A support member is comprised of a carrier which holds a volatile component. The carrier is comprised of a three-dimensional knitted fabric. The three-dimensional knitted fabric is comprised of a first knitted fabric layer, a second knitted fabric layer, and connecting yarns between these layers. The connecting yarns connect the first knitted fabric layer with the second knitted fabric layer. At least one knitted fabric layer has a mesh-like structure. A plurality of connecting yarns extend from each stitch of the first knitted fabric layer to each stitch of the second knitted fabric layer and connect each other's stitch. The volatile component is impregnated in the carrier or adhered to the carrier, so that the volatile component is held by the carrier.
    Type: Application
    Filed: January 30, 2008
    Publication date: June 12, 2008
    Inventors: Tomonori Iwasaki, Osamu Matsumoto
  • Publication number: 20080135642
    Abstract: A support member is comprised of a carrier which holds a volatile component. The carrier is comprised of a three-dimensional knitted fabric. The three-dimensional knitted fabric is comprised of a first knitted fabric layer, a second knitted fabric layer, and connecting yarns between these layers. The connecting yarns connect the first knitted fabric layer with the second knitted fabric layer. At least one knitted fabric layer has a mesh-like structure. A plurality of connecting yarns extend from each stitch of the first knitted fabric layer to each stitch of the second knitted fabric layer and connect each other's stitch. The volatile component is impregnated in the carrier or adhered to the carrier, so that the volatile component is held by the carrier.
    Type: Application
    Filed: January 30, 2008
    Publication date: June 12, 2008
    Inventors: Tomonori Iwasaki, Osamu Matsumoto
  • Patent number: 7372080
    Abstract: Provided is a GaN-based semiconductor light emitting device formed on a GaN single-crystal substrate and having a configuration capable of reducing a current leak. A GaN-based semiconductor laser device (50) is disclosed as an example of the GaN-based semiconductor light emitting device, and it is a semiconductor laser device having a structure such that a p-side electrode and an n-side electrode are provided on a multilayer structure of GaN-based compound semiconductor layers. The GaN-based semiconductor laser device (50) is similar in configuration to a conventional GaN-based semiconductor laser device formed on a sapphire substrate except that a GaN single-crystal substrate (52) is used in place of the sapphire substrate and that the multilayer structure is directly formed on the GaN single-crystal substrate (52) without providing a GaN-ELO structure layer. The GaN single-crystal substrate (52) has continuous belt-shaped core portions (52a) each having a width of 10 ?m.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: May 13, 2008
    Assignee: Sony Corporation
    Inventors: Osamu Goto, Osamu Matsumoto, Tomomi Sasaki, Masao Ikeda
  • Publication number: 20080061730
    Abstract: A frequency converter for outputting a power to drive a motor, having: an inverter unit for inverting a d.c. power to an a.c. power; a control unit for controlling the inverter unit; and a housing for supporting at least the inverter unit and control unit, wherein a rise time change unit is provided in the housing, the rise time change unit changes a rise time of a waveform of a voltage output from the inverter unit.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 13, 2008
    Inventors: Tadahiro Shimozono, Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata
  • Publication number: 20080024340
    Abstract: A current driven D/A converter sets an OFF control voltage (BIAS3) for turning off NMOS transistors M12P, M12N, M22P, M22N, M32P and M32N at a voltage close to an ON control voltage (BIAS2). This makes it possible to reduce the swing of the control voltage (ON control voltage?OFF control voltage) of the NMOS transistors, and hence to reduce the noise due to charge injections through parasitic capacitances, and noise of a ground voltage or power supply voltage due to flowing of discharge currents from the parasitic capacitances to the ground or power supply at turn off of the transistors, thereby being able to offer a high performance current driven D/A converter.
    Type: Application
    Filed: September 25, 2007
    Publication date: January 31, 2008
    Applicant: Renesas Technology Corp.
    Inventors: Osamu Matsumoto, Takahiro Miki, Yasuo Morimoto
  • Publication number: 20070282808
    Abstract: This invention is provided to reduce a processing volume when extracting record sequences meeting the ordered plural search conditions. This invention includes: assigning a flag for each item value of a specific item based on a search instruction including plural ordered search conditions, wherein each search condition designates a specific value for the specific item, and storing the flags as flag definition data; sorting plural records to be searched; identifying a flag corresponding to an item value of the specific item in each record to be processing in order of the plural sorted records, by using the flag definition data; in a process of the identifying the flag in the order of the plural sorted records, judging whether an appearance mode of the identified flags follows the search instruction; and outputting data of records relating to the flags included in the appearance mode of the flags, which was judged to follow the search instruction.
    Type: Application
    Filed: September 8, 2006
    Publication date: December 6, 2007
    Applicant: Fujitsu Limited
    Inventors: Masaki Hashirano, Osamu Matsumoto
  • Patent number: 7292172
    Abstract: A current driven D/A converter sets an OFF control voltage (BIAS3) for turning off NMOS transistors M12P, M12N, M22P, M22N, M32P and M32N at a voltage close to an ON control voltage (BIAS2). This makes it possible to reduce the swing of the control voltage (ON control voltage-OFF control voltage) of the NMOS transistors, and hence to reduce the noise due to charge injections through parasitic capacitances, and noise of a ground voltage or power supply voltage due to flowing of discharge currents from the parasitic capacitances to the ground or power supply at turn off of the transistors, thereby being able to offer a high performance current driven D/A converter.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: November 6, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Osamu Matsumoto, Takahiro Miki, Yasuo Morimoto
  • Publication number: 20070200530
    Abstract: A frequency converter for outputting a power to drive a motor, having: an inverter unit for inverting a d.c. power to an a.c. power; a control unit for controlling the inverter unit; and a housing for supporting at least the inverter unit and control unit, wherein a rise time change unit is provided in the housing, the rise time change unit changes a rise time of a waveform of a voltage output from the inverter unit.
    Type: Application
    Filed: April 10, 2007
    Publication date: August 30, 2007
    Inventors: Tadahiro Shimozono, Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata
  • Patent number: 7202628
    Abstract: A frequency converter for outputting a power to drive a motor, having: an inverter unit for inverting a d.c. power to an a.c. power; a control unit for controlling the inverter unit; and a housing for supporting at least the inverter unit and control unit, wherein a rise time change unit is provided in the housing, the rise time change unit changes a rise time of a waveform of a voltage output from the inverter unit.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: April 10, 2007
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Tadahiro Shimozono, Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata
  • Publication number: 20070007928
    Abstract: A frequency converter for outputting a power to drive a motor, having: an inverter unit for inverting a d.c. power to an a.c. power; a control unit for controlling the inverter unit; and a housing for supporting at least the inverter unit and control unit, wherein a rise time change unit is provided in the housing, the rise time change unit changes a rise time of a waveform of a voltage output from the inverter unit.
    Type: Application
    Filed: September 15, 2006
    Publication date: January 11, 2007
    Inventors: Tadahiro Shimozono, Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata
  • Patent number: 7153352
    Abstract: An ink for inkjet recording containing a vehicle, coloring agents dispersed therein, and a dispersing agent for the coloring agents as required, is provided. The vehicle contains at least a first solvent component and a second solvent component. The first solvent component has the lowest boiling point among the components in the ink, and has a higher viscosity than the ink. The second solvent component has a higher boiling point than the first one. The boiling point of the first solvent component is preferably 280 degree C. or below, and the content thereof is preferably 10 to 80% by weight based on the total weight of the ink. Even when the ink is printed on non-coated papers, the vehicle penetrates little in the thickness direction and bleeds little in the horizontal direction. Clogging in the nozzles can be prevented effectively using the ink even when it has been left in an open atmosphere for a long time.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: December 26, 2006
    Assignee: Riso Kagaku Corporation
    Inventors: Hiroyuki Ogawa, Toshihiro Endo, Hajime Tsunoda, Teruaki Ohkawa, Osamu Matsumoto
  • Patent number: 7112940
    Abstract: A frequency converter for outputting a power to drive a motor, having: an inverter unit for inverting a d.c. power to an a.c. power; a control unit for controlling the inverter unit; and a housing for supporting at least the inverter unit and control unit, wherein a rise time change unit is provided in the housing, the rise time change unit changes a rise time of a waveform of a voltage output from the inverter unit.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: September 26, 2006
    Assignee: Hitachi Industrial Equipment Systems Co.
    Inventors: Tadahiro Shimozono, Takeshi Obata, Koichiro Saito, Osamu Matsumoto, Kouji Obata
  • Patent number: 7081688
    Abstract: A system is provided to recover unutilized energy as electric power in hydraulic turbine power generation. The system includes a heat storage tank, a pump for pumping water from the heat storage tank and to air conditioning loads, a first water feed pipe connected between an outlet of the storage pump and the air conditioning loads, and a second water feed pipe for returning the water discharged from the air-conditioning loads. A hydraulic turbine driven generator is provided on a lower portion of the second water feed pipe at such a position as to recover the potential energy of the water discharged from the air conditioning loads.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: July 25, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Kouichi Satou, Seiji Yanagisawa, Yuji Tanaka, Shinichi Takahashi, Yukihiro Fujita, Osamu Matsumoto, Toshihiko Yamamoto, Masahiro Sano