Patents by Inventor Toshiyuki Matsuda

Toshiyuki Matsuda 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: 6631341
    Abstract: In an RBW filter, a bandwidth is set so as to selectively pass a frequency component of only a desired signal bandwidth of the measured signals that have been frequency converted into a normalized intermediate frequency signal. A waveform detector detects a signal that passes through the RBW filter. An A/D converter samples the signal detected by the waveform detector at a predetermined sampling rate at which a Nyquist frequency is within the frequency bandwidth of the RBW filter, thereby converting the sampled signal into digital data. A data storage section stores the digital data converted by the A/D converter. A signal processing section re-samples the digital data stored in the data storage section so as to reproduce a bandwidth of the detection signal of the waveform detector, thereby generating arbitrary time data.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: October 7, 2003
    Assignee: Anritsu Corporation
    Inventors: Keiji Kameda, Toshiyuki Matsuda, Yuichiro Hashimoto
  • Publication number: 20030010455
    Abstract: Disclosed is a registration system and a method useful for controlling and correcting the phase and position of simultaneously advancing webs having pre-printed objects spaced at a pitch length characterized by a pitch variation to a target web. Also disclosed are consumer products, such as disposable absorbent articles including the preprinted objects which were previously included in the webs phased before combining with a target web by utilizing the instant registration system. The pre-printed objects may include pre-printed, pre-bonded, pre-applied, pre-cut, or pre-glued objects or elements of disposable absorbent articles or registration marks produced on a separate independent process not control-linked to the instant registration method. The registration marks may be visible or normally invisible to the human eye.
    Type: Application
    Filed: June 3, 2002
    Publication date: January 16, 2003
    Inventors: Douglass Scott Henry, Toshiyuki Matsuda, Charles Phillip Miller, Alton Henry Stephens, Paul Kevin King
  • Patent number: 6501410
    Abstract: An A/D converter converts a to-be-measured analog signal to digital data while being sampled with a predetermined sampling frequency. A data sorting circuit sorts the digital data which is outputted from the A/D converter alternately into two signal paths and outputs them in parallel form at a ½ sampling frequency rate.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: December 31, 2002
    Assignee: Anritsu Corporation
    Inventors: Keiji Kameda, Toshiyuki Matsuda, Yoshihiko Honda
  • Publication number: 20020139484
    Abstract: Disclosed is a registration system and a method useful for controlling and correcting the phase and position of simultaneously advancing webs having pre-printed objects spaced at a pitch length characterized by small but significant pitch variation to a target web. Also disclosed are consumer products, such as disposable absorbent articles including the preprinted objects which were previously included in the webs phased before combining with a target web by utilizing the instant registration system. The pre-printed objects may include pre-printed, pre-bonded, pre-applied, pre-cut, or pre-glued objects or elements of disposable absorbent articles or registration marks produced on a separate independent process not control-linked to the instant registration method. The registration marks may be visible or normally invisible to the human eye.
    Type: Application
    Filed: May 30, 2002
    Publication date: October 3, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Douglass Scott Henry, Toshiyuki Matsuda, Charles Phillip Miller, Alton Henry Stephens, Paul Kevin King
  • Patent number: 6444064
    Abstract: Disclosed is a registration system and a method useful for controlling and correcting the phase and position of simultaneously advancing webs having pre-printed objects spaced at a pitch length characterized by small but significant pitch variation to a target web. Also disclosed are consumer products, such as disposable absorbent articles including the preprinted objects which were previously included in the webs phased before combining with a target web by utilizing the instant registration system. The pre-printed objects may include pre-printed, pre-bonded, pre-applied, pre-cut, or pre-glued objects or elements of disposable absorbent articles or registration marks produced on a separate independent process not control-linked to the instant registration method. The registration marks may be visible or normally invisible to the human eye.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: September 3, 2002
    Assignee: Procter & Gamble Company
    Inventors: Douglass Scott Henry, Toshiyuki Matsuda, Charles Phillip Miller, Alton Henry Stephens, Paul Kevin King, II
  • Publication number: 20020016691
    Abstract: In an RBW filter, a bandwidth is set so as to selectively pass a frequency component of only a desired signal bandwidth of the measured signals that have been frequency converted into a normalized intermediate frequency signal. A waveform detector detects a signal that passes through the RBW filter. An A/D converter samples the signal detected by the waveform detector at a predetermined sampling rate at which a Nyquist frequency is within the frequency bandwidth of the RBW filter, thereby converting the sampled signal into digital data. A data storage section stores the digital data converted by the A/D converter. A signal processing section re-samples the digital data stored in the data storage section so as to reproduce a bandwidth of the detection signal of the waveform detector, thereby generating arbitrary time data.
    Type: Application
    Filed: February 20, 2001
    Publication date: February 7, 2002
    Applicant: Anritsu Corporation
    Inventors: Keiji Kameda, Toshiyuki Matsuda, Yuichiro Hashimoto
  • Patent number: 5475709
    Abstract: A signal processing unit selects signal components included in the frequency bands of respective channels from a burst signal input from a terminal, and outputs the selected signal components to a memory after they are converted into digital data. A frequency switching unit sequentially switches the frequency bands at a predetermined time interval in correspondence with the respective channels. A data write unit stores the digital data in the memory for every channel in response to switching of the frequency bands. A data read-out unit reads out data from the memory, specifies the timing of the burst signal, and reads out necessary data for every channel on the basis of the specified timing. A power arithmetic operation unit calculates electric power of each channel based on the readout data, thus obtaining the adjacent and alternate channels power.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: December 12, 1995
    Assignee: Anritsu Corporation
    Inventors: Yoshihiro Futagami, Toshiyuki Matsuda
  • Patent number: 5058998
    Abstract: A liquid crystal device has a pair of substrates having a plurality of electrodes arranged on facing surfaces thereof, aligning films, rubbed in a predetermined direction, for covering the surfaces of the substrates and the surfaces of the electrodes, a nematic liquid crystal disposed between these aligning films, and a pair of polarizing plates disposed outside the substrates. The liquid crystal device has an optical anistropy .DELTA.n of 0.12 or below, a dielectric ratio .DELTA..epsilon./.epsilon.1 of 1.0 or below, expressed by a ratio of a dielectric anistotropy .DELTA..epsilon. of a dielectric constant in a direction normal to the axes of liquid crystal molecules, and a retardation .DELTA.n.multidot.d of greater than 0.4 .mu.m and less than 1.0 .mu.m, which is expressed by a product of the optical anisotropy .DELTA.n and the thickness d of a liquid crystal layer. The nematic liquid crystal is twised 180.degree. to 270.degree. between the aligning films.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: October 22, 1991
    Assignee: Casio Computer Co., Ltd.
    Inventors: Tetsushi Yoshida, Tetsuo Muto, Toshiyuki Matsuda, Naoshige Sugimoto
  • Patent number: 4792988
    Abstract: A radio receiving circuit provided with a search tuning mechanism. A broadcasting radiowave signal is received during a search tuning operation, and a shift amount of frequency produced in frequency of an intermediate frequency amplifier output is experimentally determined within an inertia self-travelling time interval search tuning mechanism due to the mechanical inertia thereof from the moment at which a drive force applied to the search tuning mechanism is interrupted to the time when the mechanism temporarily positively stops its function. The drive force applied to the search tuning mechanism is interrupted at a frequency deviated by the shift amount in advance from a center frequency of a pass band width of the intermediate frequency amplifier circuit, whereby after the mechanism has self-travelled due to its own mechanical inertia force and when tuned to the center frequency of the received radiowave signal, the search tuning operation is suspended.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: December 20, 1988
    Assignee: Nihon Technical Kabushiki Kaisha
    Inventors: Tamaki Ohashi, Toshiyuki Matsuda