Patents by Inventor Hiroshi Kazama

Hiroshi Kazama 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: 20240150951
    Abstract: A washing machine includes a controller. The controller perform switching processing, by moving a moving part in an axial direction so that the moving part is switched from a start state in which one of a rotor-side fixing part and a stator-side fixing part engages with the moving part to an end state in which a remaining one of the rotor-side fixing part and the stator-side fixing part engages with the moving part. The controller is further configured to perform an adjustment operation before the end state of the switching processing starts. In the adjustment operation, the controller is further configured to adjust an engagement position by changing a rotation phase of rotor so as to allow an engagement position of the moving part with respect to the remaining one of the rotor-side fixing part and the stator-side fixing part to become a target engagement position.
    Type: Application
    Filed: January 17, 2024
    Publication date: May 9, 2024
    Inventors: Osamu KAZAMA, Hiroshi KATSUMOTO, Yasuyuki SONODA
  • Patent number: 7936742
    Abstract: A frequency digital signal demultiplexing apparatus including: demultiplexing filter bank units connected in a multistage manner to form a demultiplexing filter bank, wherein each unit includes at least one filter for filtering an input signal in series with a down-sampler, and frequency conversion and decimator part to receive at least one of the received signal and output signals of each unit demultiplexing filter bank, which includes a frequency conversion part, for each input signal, to shift a frequency of an input signal, and at least one decimator part serially connected to an output of each frequency conversion part, the decimator part including a filter for performing band limitation of an input signal and a down-sampler for down-sampling an output signal of the filter and output a down-sampled signal.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: May 3, 2011
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kiyoshi Kobayashi, Hiroshi Tanaka, Hiroshi Kazama
  • Publication number: 20090304031
    Abstract: A digital signal demultiplexing apparatus for demultiplexing a received signal including a plurality of signals that are frequency-multiplexed to output demultiplexed signals is disclosed. The digital signal demultiplexing apparatus includes: demultiplexing filter bank means including a configuration in which unit demultiplexing filter banks are connected in a multistage manner, each unit demultiplexing filter bank including one or more filters for filtering an input signal and a down-sampler for down-sampling an output signal of each filter to output an down-sampled signal; and frequency conversion and decimator means configured to receive at least one of the received signal and output signals of each unit demultiplexing filter bank.
    Type: Application
    Filed: May 18, 2007
    Publication date: December 10, 2009
    Applicant: Nippon Telegraph and Telephone Corporation
    Inventors: Kiyoshi Kobayashi, Hiroshi Tanaka, Hiroshi Kazama
  • Patent number: 6714529
    Abstract: A signal demultiplexer includes serially-connected 2-demultiplexing filter banks, including band-stop filters and down-samplers for culling sampling frequencies of output signals from filters to 1/2. When the 2-demultiplexing filter bank operates on four types of filters, first to fourth filters in an ascending order of frequencies, 2-demultiplexing filter bank is arranged in one of two configurations so that a first filter bank contains at least the first filter or the second filter, or a second filter bank contains at least the third filter or the fourth filter. The filter banks are connected in such a way that signals processed through the first filter are processed by the first 2-demultiplexing filter bank in a next-stage; signals processed through the second filter are processed by the second 2-demultiplexing filter bank in a next-stage.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: March 30, 2004
    Assignee: Nippon Telegraph and Telephone Corp.
    Inventors: Kazuhiro Tanabe, Kiyoshi Kobayashi, Hiroshi Kazama
  • Patent number: 5888321
    Abstract: The steel wire for making steel cord used in rubber product reinforcement has a tensile strength, Y in N/mm.sup.2, such that Y.gtoreq.-1960d+3920, wherein d is the wire diameter in mm, and also a flat Vickers hardness distribution in a cross-section perpendicular to a length direction thereof from the surface to the interior, but excluding a central portion having a central portion diameter corresponding to 1/4 of the wire diameter. The steel wire is made by a method including wet drawing a carbon steel wire rod material containing 0.80 to 0.89% by weight carbon to a predetermined intermediate diameter and subsequently heat-treating and plating to form a final raw material and then wet drawing the final raw material to form the steel wire. The wet drawing steps are performed with drawing dies, each of which is provided with a drawing hole having a drawing hole diameter d.sub.1 and the drawing die has an approach angle 2.alpha. equal to from 8.degree. to 10.degree. and a bearing length of 0.3 d.sub.1.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: March 30, 1999
    Assignee: Tokyo Rope Manufacturing Co., Ltd.
    Inventors: Hiroshi Kazama, Kazuhiro Ishimoto