Patents by Inventor Hiroshi Harada

Hiroshi Harada 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: 20090069483
    Abstract: The present invention provides a resin composition comprising: (A) a thermoplastic resin, (B) a granular material which has a number average particle diameter of 0.5 to 5 mm and is obtainable by granulating a fiber mainly having alumina with a number average fiber diameter of 1 to 50 ?m, and (C) a filler composed of a material of which electric resistivity at 300 K is 102 ?m or less. The resin composition can be molded into a molded article with electric insulation. The electric resistivity of the molded article has sufficient electric insulation in applications such as in electric and electronic parts.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 12, 2009
    Inventors: Shintaro Komatsu, Mitsuo Maeda, Hiroshi Harada
  • Publication number: 20090034643
    Abstract: A transmitter 131 in a communication system 101 receives data to be transferred, performs STBC coding thereon to acquire two signals, performs an OFDM transmission process on the signals which are radio-transmitted to from antennas 141, 142 having polarization polarities orthogonal to each other. A receiver 151 radio-receives the signals using antennas 161, 162 having polarization polarities orthogonal to each other, and performs STBC decoding on two signals acquired by performing an OFDM reception process on the received signals, respectively, thereby acquiring the transferred data. The inclinations of the antenna 141 and the antenna 161 are equal to the inclinations of the antenna 142 and the antenna 162, and are typically 45 degrees.
    Type: Application
    Filed: January 14, 2004
    Publication date: February 5, 2009
    Inventors: Chang-Jun Ahn, Hiroshi Harada
  • Publication number: 20090010307
    Abstract: When a receiver (200) receives a signal transmitted from a transmitter, an A/D converter (204) converts the signal into a digital signal having two or more levels by A/D conversion. A zero-level detector (207) converts the signal into a two-level digital signal of positive and negative levels. The converted signals are subjected to spectrum despreading by correlators (206, 208), respectively. Whichever signal has a higher intensity is selected by absolute value detectors (209, 210), a comparator (211), and a switch (212). A decoder (213) decodes the selected signal. In a receiving state where the zero-level detector (207) is selected, the transmitter transmits the transmission signal after the signal is converted into a two-level signal. In a receiving state where the A/D converter (204) is selected, the transmitter transmits the transmission signal after the signal is converted into a signal having two or more levels.
    Type: Application
    Filed: March 2, 2005
    Publication date: January 8, 2009
    Applicant: National Institute of Information and Communications Technology, Inc. Administrative Age
    Inventors: Satoshi Takahashi, Hiroshi Harada, Chang-Jun Ahn
  • Patent number: 7473326
    Abstract: A Ni-base directionally solidified superalloy and a Ni-base single-crystal superalloy, which have superior creep strength at a high temperature, consists essentially of from 5.0 percent by weight to 7.0 percent by weight of Al, from 4.0 percent by weight to 16.0 percent by weight of Ta+Nb+Ti, from 1.0 percent by weight to 4.5 percent by weight of Mo, from 4.0 percent by weight to 8.0 percent by weight of W, from 3.0 percent by weight to 8.0 percent by weight of Re, 2.0 percent by weight or less of Hf, 10.0 percent by weight or less of Cr, 15.0 percent by weight or less of Co, from 1.0 percent by weight to 4.0 percent by weight of Ru, 0.2 percent by weight or less of C, 0.03 percent by weight or less of B, and Ni and inescapable impurities as a balance. The superalloys can be used for a turbine blade, a turbine vane and the like of a jet engine, an industrial gas turbine and the like.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: January 6, 2009
    Assignees: National Institute for Materials Science, Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Toshiharu Kobayashi, Yutaka Koizumi, Tadaharu Yokokawa, Hiroshi Harada, Yasuhiro Aoki, Shouju Masaki
  • Patent number: 7468571
    Abstract: An electrostatically driven latchable actuator system has an actuator and a pair of side effectors on opposite ends of the actuator. The actuator is resiliently supported to a substrate and is movable along a linear axis between two operative positions as being electrically attracted to one of the side effectors. A latch mechanism is provided to mechanically latch the actuator at either of the operative positions. The side effectors are movably towards and away from the actuator along the linear axis between a normal position and a shifted position close to the actuator. Both of the side effectors are also resiliently supported to the substrate to be movable towards the actuator by being electrostatically attracted thereto and away from the actuator by resiliency.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: December 23, 2008
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Hiroshi Harada, Naomasa Oka, Yuji Suzuki, Hiroshi Fukshima, Hiroshi Noge, Jun Ogihara, Kiyohiko Kawano
  • Publication number: 20080268245
    Abstract: Particulate chemical substances and method of manufacturing thereof wherein the resultant particles have a narrow particle size distribution and sufficient hardness to ensure that particles can withstand intact being driven through pneumatic transportation equipment. The method comprises granulating raw material using a spray granulation apparatus having a nozzle plate equipped with nozzle pipes having a length in the range of 2-100 mm.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 30, 2008
    Inventors: Hiroshi Harada, Shinichi Miyamoto
  • Publication number: 20080260570
    Abstract: Disclosed is a novel heat-resistant superalloy for turbine disks having a chemical composition consisting of, in mass %, 19.5-55% of cobalt, 2-25% of chromium, 0.2-7% of aluminum, 3-15% of titanium and the balance of nickel and inevitable impurities.
    Type: Application
    Filed: December 2, 2005
    Publication date: October 23, 2008
    Inventors: Hiroshi Harada, Yuefeng Gu, Chuanyong Cui, Makoto Osawa, Akihiro Sato, Toshiharu Kobayashi
  • Patent number: 7436809
    Abstract: A communicating system is disclosed. The communicating system has a base station and a plurality of mobile stations that radio-communicate through an uplink channel and a downlink channel with frames each of which is composed of a plurality of time divided slots, each of the frames of the uplink channel and the downlink channel being transmitted in accordance with OFDM transmitting system. An OFDM sub carrier used in the OFDM transmitting system is divided in accordance with a predetermined diving method, each of the frames of the uplink channel or downlink channel being allocated to the divided portions of the OFDM sub carrier, a plurality of frames of the uplink channel or downlink channel being radio-communicated between one base station and a plurality of mobile stations.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: October 14, 2008
    Assignee: National Institute of Information and Communications Technology, Incorporated Administrative Agency
    Inventors: Hiroshi Harada, Chang-Jun Ahn, Satoshi Takahashi, Yukiyoshi Kamio, Seiichi Sampei
  • Publication number: 20080240926
    Abstract: There is provided a Co-free Ni-base superalloy having a composition containing 1.0 to 10.0 wt % of Cr, 0.1 to 3.5 wt % of Mo, 7.5 to 10.0 wt % of W, 4.0 to 8.0 wt % of Al, 12.0 wt % or less of at least one species of Ta, Nb and Ti, 0 to 2.0 wt % of Hf, 0.1 to 5.0 wt % of Re and the remainder comprised of Ni and unavoidable impurities. The Co-free Ni-base superalloy exhibits high composition stability over a long period of time and is excellent in creep properties at high temperature, and also suitable as a turbine blade or turbine vane of atomic power generation in which maintenance for radioactive contamination and so forth are easy.
    Type: Application
    Filed: March 24, 2006
    Publication date: October 2, 2008
    Inventors: Toshiharu Kobayashi, Yutaka Koizumi, Hiroshi Harada, Tadaharu Yokokawa
  • Publication number: 20080226937
    Abstract: A heat resistant material, wherein one type or plural types of materials that do not generate interdiffusion with an Ni-based superalloy are coated on the Ni-based superalloy to prevent the interdiffusion of elements through the substrate/coating interface even at such high temperatures as 1100° C. or above 1100° C., is provided.
    Type: Application
    Filed: March 28, 2006
    Publication date: September 18, 2008
    Inventors: Hiroshi Harada, Akihiro Sato, Kyoko Kawagishi
  • Publication number: 20080216942
    Abstract: There is provided a method for continuous production of a functional membrane whereby a functional membrane in which a functional polymer is filled into the micropores of a porous resin sheet can be obtained both continuously and efficiently.
    Type: Application
    Filed: May 12, 2004
    Publication date: September 11, 2008
    Applicant: TOAGOSEI CO., LTD
    Inventors: Hideki Hiraoka, Kouzou Kubota, Takeo Yamaguchi, Nobuo Ooya, Hiroshi Harada
  • Patent number: 7422928
    Abstract: A process for fabricating a micro-electro-mechanical system (MEMS) composed of fixed components fixedly supported on a lower substrate and movable components movably supported on the lower substrate. The process utilizes an upper substrate separate from the lower substrate. The upper substrate is selectively etched in its top layer to form therein a plurality of posts which project commonly from a bottom layer of the upper substrate. The posts include the fixed components to be fixed to the lower substrate and the movable components which are resiliently supported only to one or more of the fixed components to be movable relative to the fixed components. The lower substrate is formed in its top surface with at least one recess. The upper substrate is then bonded to the top of the lower substrate upside down in such a manner as to place the fixed components directly on the lower substrate and to place the movable components upwardly of the recess.
    Type: Grant
    Filed: September 12, 2004
    Date of Patent: September 9, 2008
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Naomasa Oka, Hiroshi Harada, Jun Ogihara, Hiroshi Fukshima, Hiroshi Noge, Yuji Suzuki, Kiyohiko Kawano, Takaaki Yoshihara, Masahiko Suzumura
  • Publication number: 20080203358
    Abstract: The present invention provides for a resin molded article comprising a liquid crystalline polymer and a fibrous filler, the article having a surface with difference of 0.4 ?m or smaller in a surface roughness expressed by Ra value measured before and after repeating 30 times the operation of pasting and peeling a tape having an adhesive power of 4.0 N/mm. The resin molded article is excellent in mechanical strength when used in an electric/electronic component or in an optical apparatus.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 28, 2008
    Inventors: Koichi Mizumoto, Hiroshi Harada
  • Publication number: 20080159754
    Abstract: The object of the present invention is to provide a modulated optical signal generator utilizing the mechanism of a multiply optical modulator, and a modulated signal generator capable of outputting millimeter waves and the like utilizing the modulated optical signal generator. The above-mentioned object is solved by a modulated optical signal generator (1) provided with an optical modulator (2), a first optical filter (3), and a second optical filter (4), wherein a frequency of a multiplying optical modulation outputted from the second optical filter (4) is controlled by controlling the frequency of the modulating signal inputted to the optical modulator (2).
    Type: Application
    Filed: June 29, 2005
    Publication date: July 3, 2008
    Applicant: National Institute Of Information & Communications Technology, Incorporated Administrative Agency
    Inventors: Tetsuya Kawanishi, Hiroshi Harada, Masayuki Izutsu
  • Publication number: 20080139706
    Abstract: A process is provided for producing aqueous pigment dispersions for ink-jet recording in which fine pigments are stably dispersed and such a state can be maintained for a long period of storing. Moreover, a process is provided for producing aqueous pigment dispersions for ink-jet recording in which the time required for production such as dispersing time is short, and the production efficiency is high. The process for producing aqueous pigment dispersions for ink-jet recording includes a first step of kneading (1) a styrene-acrylic type resin with a styrene type monomer unit of 50 to 90 mass %, and at least one unit selected from an acrylic monomer unit and methacrylic monomer unit, having an acid value of 50 to 300, (2) a pigment, (3) a basic compound, and (4) a humectant to produce a solid colored kneaded product, and a second step of dispersing the solid colored kneaded product in an aqueous medium comprising water or water and humectant.
    Type: Application
    Filed: August 11, 2003
    Publication date: June 12, 2008
    Applicant: Dainippon Ink And Chemicals, Inc.
    Inventors: Hideaki Kaji, Kazuhiro Kaneko, Ritsuko Small, Hiromichi Arakawa, Shinichi Okada, Hiroshi Harada, Sadahiro Inoue
  • Publication number: 20080124241
    Abstract: A chromium-base alloy characterized by containing titanium within a range from 0.002 t0 1.5 mass %, with the balance comprising chromium and inevitable impurities, and being produced by melting or casting only. A chromium-base alloy that can be obtained by melting only, has room temperature ductility and a good workability, and has excellent high temperature strength and oxidation resistance even at a high temperature of about 1300° C., as well as a production process therefor are provided.
    Type: Application
    Filed: January 11, 2006
    Publication date: May 29, 2008
    Inventors: Yuefeng Gu, Hiroshi Harada, Yoshikazu Ro, Eisuke Bannai
  • Publication number: 20080112838
    Abstract: Non-oriented electrical steel sheet superior in core loss characterized by containing, by mass %, C: 0.01% or less, Si: 0.1% to 7.0%, Al: 0.1% to 3.0%, Mn: 0.1% to 2.0%, N: 0.005% or less, Ti: 0.02% or less, REM: 0.05% or less, S: 0.005% or less, O: 0.
    Type: Application
    Filed: September 28, 2005
    Publication date: May 15, 2008
    Inventors: Masafumi Miyazaki, Wataru Ohashi, Yousuke Kurosaki, Takeshi Kubota, Hiroshi Harada, Tomohiro Konno, Yutaka Matsumoto, Koichi Kirishiki
  • Publication number: 20080112309
    Abstract: The invention provides precise estimation of a channel response and correct demodulation of an information signal even in the circumstance of being likely suffering interference. The invention includes an error correcting code unit 1, an S/P converting unit 2, a mapping unit 3, an IDFT (Inverse Discrete Fourier Transform) unit (IFFT: Inverse Fast Fourier Transform can be used) 4, a P/S converting unit 5, a GI (Guard Interval) inserting unit 6, preamble (A, B0, B1) storage selecting units 11-a and 11-b, switch units 12-a and 12-b, D/A converting units 13-a and 13-b, radio units 14-a and 14-b and antenna units 15-a and 15-b.
    Type: Application
    Filed: January 16, 2006
    Publication date: May 15, 2008
    Inventors: Yasuhiro Hamaguchi, Shimpei To, Hideo Nanba, Seiichi Sampei, Hiroshi Harada, Masafumi Moriyama
  • Publication number: 20080112066
    Abstract: A camera module includes a lens barrel 4 for holding a lens 6 and a base 3 having a housing part 11 for housing the lens barrel 4. The lens barrel 4 comes in contact with an inner circumference surface of the housing part 11 of the base 3 on an outer circumference surface and can move in an optical axis direction of the lens 6. The housing part 11 of the base 3 has openings 14 on the circumference surface, and the outer circumference surface of the lens barrel 4 has welding parts 22 for welding with respect to rim parts of the openings 14.
    Type: Application
    Filed: October 9, 2007
    Publication date: May 15, 2008
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Hiroshi HARADA, Kazuhiro MIYAKAWA
  • Publication number: 20080080628
    Abstract: Improving the accuracy of estimation of channel responses in receiving signals from a plurality of antennas is disclosed. A transmitting device of a base station includes a preamble A generating unit 010, a preamble B generating unit 011, phase rotating units 012 and 013, multiplexing units 014 and 015, an forward error correction coding unit 016, an S/P converting unit 017, a mapping unit 018, a changeover switch 019, IDFT (or IFFT) units 020 and 026, P/S converting units 021 and 027, GI (Guard Interval) inserting units 022 and 028, D/A converting units 023 and 029, radio transmitting units 024 and 030 and antenna units 025 and 031. In the preamble A generating unit 010 and the preamble B generating unit 011, a preamble A and a preamble B (see the packet format in FIG. 1) are generated, respectively. The preamble A is outputted to the multiplexing units 014 and 015, while the preamble B is outputted to the phase rotating units 012 and 013.
    Type: Application
    Filed: January 16, 2006
    Publication date: April 3, 2008
    Inventors: Shimpei To, Yasuhiro Hamaguchi, Hideo Nanba, Seiichi Sampei, Hiroshi Harada, Masafumi Moriyama