Patents by Inventor Susumu Fujiwara

Susumu Fujiwara 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: 20140015364
    Abstract: A rotor iron core is used, which is formed by laminating a base steel sheets with a magnetic flux density (B8000) of 1.65 T or more as measured at a magnetic field strength of 8000 A/m and a coercivity of 100 A/m or more.
    Type: Application
    Filed: March 27, 2012
    Publication date: January 16, 2014
    Inventors: Tomonaga Iwatsu, Yukio Katagiri, Susumu Fujiwara, Shigeru Morikawa
  • Publication number: 20130337287
    Abstract: [Problem] To provide a steel sheet hot-dip-plated with a Zn—Al—Mg-based alloy coating, which is remarkably improved in point of all the burring workability, the liquid metal embrittlement cracking resistance and the corrosion resistance in the welded part thereof, as a steel material favorable for arc-welded structural members.
    Type: Application
    Filed: February 28, 2012
    Publication date: December 19, 2013
    Applicant: Nisshin Steel CO. Ltd
    Inventors: Kentaro Hirata, Yukio Katagiri, Susumu Fujiwara, Kazuaki Hosomi, Masaaki Uranaka
  • Publication number: 20120210741
    Abstract: To provide a noise control system capable of generating a noise cancellation field where noise is reduced at a desired position in a space. An error scanning filter generates a noise cancellation signal using an adaptive control algorithm based on error scanning, the signal having a phase opposite to that of an acoustic signal component detected by a reference sensor. A control speaker radiates the noise cancellation signal to create a noise cancellation field near the head of a person receiving sound.
    Type: Application
    Filed: November 2, 2009
    Publication date: August 23, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventor: Susumu Fujiwara
  • Publication number: 20110318606
    Abstract: [Problem] To provide a zinc-based alloy-plated steel material in which low-carbon steel is used as the base material and which is excellent in resistance to molten-metal embrittlement cracking and has good workability. [Means for Resolution]A zinc-based alloy-plated steel material excellent in resistance to molten-metal embrittlement cracking, which has a zinc-based alloy-plating layer on the surface of a steel base material that has a chemical composition comprising, as % by mass, C: 0.010 to 0.100%, Si: at most 1.50%, Mn: at most 2.00%, P: at most 0.100%, S: at most 0.030%, N: at most 0.0050%, Ti: at most 0.050%, and B: 0.0003 to 0.0100%, with a balance of Fe and inevitable impurities, and having the value L to be defined by the following formula, L={(Ti/48)+(B/11)}/(N/14), of at least 5.50, and has a metallographic structure comprising ferrite: 10 to 99% by volume with a balance of bainite, pearlite, cementite or martensite.
    Type: Application
    Filed: March 9, 2010
    Publication date: December 29, 2011
    Applicant: NISSHIN STEEL CO., LTD.
    Inventors: Nobukazu Fujimoto, Shinichi Kodama, Susumu Fujiwara
  • Patent number: 7864626
    Abstract: An interface circuit includes a delay circuit that generates a delay signal obtained by delaying a data strobe signal, a first logical circuit that performs a logical operation of on the data strobe signal and the delay signal, and outputs an operation result as a first strobe signal, a second logical circuit that receives the first strobe signal and generates a second strobe signal that is complementary to the first strobe signal; a first latch circuit that latches a data signal based on the first strobe signal, and a second latch circuit that latches the data signal based on the second strobe signal.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: January 4, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventor: Susumu Fujiwara
  • Patent number: 7591580
    Abstract: In the lighting device, cylindrical lenses are provided on a reflection surface side of a light guide plate, and the adjacent cylindrical lenses are connected by a concaved curved surface.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: September 22, 2009
    Assignee: Fujitsu Limited
    Inventors: Satoshi Maeda, Hirokazu Aritake, Takao Satake, Susumu Fujiwara
  • Publication number: 20090040789
    Abstract: In the lighting device, cylindrical lenses are provided on a reflection surface side of a light guide plate, and the adjacent cylindrical lenses are connected by a concaved curved surface.
    Type: Application
    Filed: October 16, 2008
    Publication date: February 12, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi MAEDA, Hirokazu ARITAKE, Takao SATAKE, Susumu FUJIWARA
  • Publication number: 20080239843
    Abstract: An interface circuit is disclosed that can include a delay circuit that generates a delay signal obtained by delaying a data strobe signal; a first logical circuit that performs a logical operation of on the data strobe signal and the delay signal, and outputs an operation result as a first strobe signal; a second logical circuit that receives the first strobe signal and generates a second strobe signal that is complementary to the first strobe signal; a first latch circuit that latches a data signal based on the first strobe signal; and a second latch circuit that latches the data signal based on the second strobe signal.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Inventor: Susumu FUJIWARA
  • Patent number: 7050594
    Abstract: A motional feedback (MFB) signal control unit includes a vibration displacement calculating part which generates a vibration displacement detecting signal in response to the input of a vibration detecting signal from a vibration detecting coil of a speaker unit, a vibration speed calculating part which generates a vibration speed detecting signal in response to the input of the vibration detecting signal, a processed signal generating part which generates a feedback signal in response to the input of the vibration displacement signal and the vibration speed detecting signal, and an adder which adds the feedback signal to a sound signal outputted from a sound reproducing unit so as to input the sound signal to a driving voice coil of the speaker unit.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: May 23, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tsuyoshi Nakada, Teruho Yamada, Susumu Fujiwara, Noboru Kyouno
  • Patent number: 7006640
    Abstract: A pole piece 19 of a speaker main unit 1 has a pole 19a engaged with a bobbin 14 from the back side of a diaphragm 12, and a flange 19b horizontally expanding from the base of the pole 19a. In the pole 19a is formed a through hole 19c passing therethrough in an axial direction thereof, and in the bottom end of the through hole 19c is provided with a taper 19d which widens with it goes downward. A thin film piezoelectric element 4 is provided such that the element covers an external opening 19e of the through hole 19c, and one end 4a of a thin film piezoelectric element 4 is adhered to the bottom surface of the flange 19b.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: February 28, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Daisuke Arai, Susumu Fujiwara
  • Patent number: 6790682
    Abstract: To provide increased yields of semiconductor devices to achieve efficient production there are provided a storage correlating and storing inspection data of each of a plurality of semiconductor chips formed in a wafer and the position of each of a plurality of triac chips as seen on the wafer, a wafer screening portion referring to the inspection data of the semiconductor chips in the storage to select a wafer from a plurality of wafers, and a die-bonding portion die-bonding a triac chip formed in the selected wafer to a lead frame of a high rank semiconductor device having a superior characteristic.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: September 14, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Susumu Fujiwara
  • Publication number: 20040151339
    Abstract: A pole piece 19 of a speaker main unit 1 has a pole 19a engaged with a bobbin 14 from the back side of a diaphragm 12, and a flange 19b horizontally expanding from the base of the pole 19a. In the pole 19a is formed a through hole 19c passing therethrough in an axial direction thereof, and in the bottom end of the through hole 19c is provided with a taper 19d which widens with it goes downward. A thin film piezoelectric element 4 is provided such that the element covers an external opening 19e of the through hole 19c, and one end 4a of a thin film piezoelectric element 4 is adhered to the bottom surface of the flange 19b.
    Type: Application
    Filed: October 22, 2003
    Publication date: August 5, 2004
    Inventors: Daisuke Arai, Susumu Fujiwara
  • Publication number: 20030024964
    Abstract: To provide increased yields of semiconductor devices to achieve efficient production there are provided a storage correlating and storing inspection data of each of a plurality of semiconductor chips formed in a wafer and the position of each of a plurality of triac chips as seen on the wafer, a wafer screening portion referring to the inspection data of the semiconductor chips in the storage to select a wafer from a plurality of wafers, and a die-bonding portion die-bonding a triac chip formed in the selected wafer to a lead frame of a high rank semiconductor device having a superior characteristic.
    Type: Application
    Filed: July 22, 2002
    Publication date: February 6, 2003
    Inventor: Susumu Fujiwara
  • Publication number: 20030021427
    Abstract: A motional feedback (MFB) signal control unit includes a vibration displacement calculating part which generates a vibration displacement detecting signal in response to the input of a vibration detecting signal from a vibration detecting coil of a speaker unit, a vibration speed calculating part which generates a vibration speed detecting signal in response to the input of the vibration detecting signal, a processed signal generating part which generates a feedback signal in response to the input of the vibration displacement signal and the vibration speed detecting signal, and an adder which adds the feedback signal to a sound signal outputted from a sound reproducing unit so as to input the sound signal to a driving voice coil of the speaker unit.
    Type: Application
    Filed: July 25, 2002
    Publication date: January 30, 2003
    Inventors: Tsuyoshi Nakada, Teruho Yamada, Susumu Fujiwara, Noboru Kyouno
  • Patent number: 5813776
    Abstract: A split seal paper sheet in which the width of split seals composing the split seal paper sheet in the direction of conveyance of the paper sheet is smaller than the print width of a serial head is used. One or more of the split seals is/are positioned in one scanning region of the serial head, to print an image on the split seals. Line feed for printing on one or more split seals in the subsequent line is performed in such a manner that the line feed width is the same as the print width of the serial head. Consequently, the entire image is formed on one split seal without conveying the paper sheet (performing line feed). Even if a pitch between lines becomes non-uniform in conveyance of the paper sheet, the image on the split seal is not degraded.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: September 29, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Susumu Fujiwara, Toshiyuki Watanabe, Yoshiaki Ishikawa, Mikio Ichihashi, Shigeki Shibuya, Nobuo Iwatsuki
  • Patent number: 5594803
    Abstract: A silencing apparatus for effectively reducing noises in the three dimension space which detects physical characteristics of the noise source by the laser doppler sensor unit during the noise source comes close to the telephone booth, and collects acoustic characteristics of the noise source by the sensor microphone array. The control portion generates an inverse-phased signal against the noise source so that the noises are decreased at the error sensor, and stores the noise source information ( physical characteristics and the acoustic characteristics) and the generated inverse-phased signal. When the same noise source come closely, the voice is generated from the speaker using the inverse-phased signal stored in the memory. The control portion generates an inverse-phased voice from the speaker when the collected noise by the sensor microphone is actually over a certain threshold level.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: January 14, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Susumu Fujiwara, Masahiko Sakata, Mikio Ishizuka
  • Patent number: 5548652
    Abstract: A silencing apparatus for effectively reducing noises in the three dimension space which detects physical characteristics of the noise source by the laser doppler sensor unit during the noise source comes close to the telephone booth, and collects acoustic characteristics of the noise source by the sensor microphone array. The control portion generates an inverse-phased signal against the noise source so that the noises are decreased at the error sensor, and stores the noise source information (physical characteristics and the acoustic characteristics) and the generated inverse-phased signal. When the same noise source come closely, the voice is generated from the speaker using the inverse-phased signal stored in the memory. The control potion generates an inverse-phased voice from the speaker when the collected noise by the sensor microphone is actually over a certain threshold level.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: August 20, 1996
    Assignee: Mitsubishi Denki Kaibushiki Kaisha
    Inventors: Susumu Fujiwara, Masahiko Sakata, Mikio Ishizuka