Patents by Inventor Takayoshi Makabe

Takayoshi Makabe 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: 4571502
    Abstract: A full wave rectifier comprises an input terminal supplied with an AC signal and an output terminal for delivering a rectified DC signal. An operational amplifier having an inverting input terminal, amplifies the AC signal. A rectifier gain setting is provided by a first resistor connected between the input terminal and the inverting terminal of the amplifier. A second resistor, having the same resistance as the first resistor, is connected between the inverting terminal and output terminal of the amplifier. A depletion type MOS FET operates responsive to the output of the amplifier, for performing a switching operation.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: February 18, 1986
    Assignees: Nippon Telegraph & Telephone Public Corporation, Nippon Electric Co., Ltd.
    Inventors: Tadakatsu Kimura, Takayoshi Makabe, Yoshiaki Kuraishi
  • Patent number: 4498063
    Abstract: In a switched capacitor filter of a first-order responsive to a filter input signal for producing a filter output signal by carrying out sampling operation at a predetermined sampling rate by the use of switching circuit, a capacitor, and an integrating circuit, a voltage divider produces a voltage divided signal in response to the filter input signal to reduce a total capacitance determined by capacitances of the capacitor and the integrating circuit. The voltage divided signal is sampled by the switching circuit to be sent to the integrating circuit at the sampling rate through the capacitor. The integrating circuit produces the filter output signal as a result of integration. In addition, an additional switched capacitor filter of a first-order is connected in cascade to the filter to form a switched capacitor filter of a second-order.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: February 5, 1985
    Assignees: Nippon Electric Co., Ltd., Nippon Telegraph & Telephone Public Corporation
    Inventors: Takayoshi Makabe, Yoshiaki Kuraishi, Kenji Nakayama, Tadakatsu Kimura
  • Patent number: 4446481
    Abstract: An automatic system for inspecting products having an edge or edges which, for an acceptable product, are straight (within predetermined tolerances) without accurate orientation of such products which includes a raster-scanned television camera (or its equivalent) for generating a composite video signal corresponding to the product being inspected. The number of horizontal sweep intervals in each edge to determine its length and comparing such length information with pre-stored reference length to determine if the two correspond, rejecting the capsule if it is shorter than the reference length but, if it is longer than the acceptable length, determining if the greater length is a result of the product's being tilted or torn.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: May 1, 1984
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Kunihiko Edamatsu, Takayoshi Makabe
  • Patent number: 4364006
    Abstract: A simplified, small-sized RV generator has a power source with a voltage adjusting circuit. The adjusting circuit includes a plurality of polysilicon resistors connected serially with polysilicon fuses connected in parallel with and to both ends of each of the resistors. A resistor network is connected to the voltage adjusting circuit and composed of a plurality of polysilicon resistors for providing a reference voltage, based on the output voltage of the adjusting circuit.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: December 14, 1982
    Assignee: Nippon Electric Co., Ltd.
    Inventors: Takayoshi Makabe, Yoshiaki Kuraishi