Patents by Inventor Nobuhiro Tokumori

Nobuhiro Tokumori 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: 10277235
    Abstract: A fine-adjustment synthesizer includes a fractional phase-locked loop having a reference integer frequency divider, a phase comparator, a loop filter, a frequency variable oscillator, a mixer, a baud-pass filter, and a feedback path programmable fractional frequency divider. A coarse-adjustment synthesizer includes an integer-type phase-locked loop having a reference integer frequency divider, a phase comparator, a loop filter, a frequency variable oscillator, a band-pass filter, and a feedback path programmable integer frequency divider. An output of a reference signal source is input in parallel to both the fine-adjustment synthesizer and the coarse-adjustment synthesizer. An output of the frequency variable oscillator in the fine-adjustment synthesizer and an output of the frequency variable oscillator in the coarse-adjustment synthesizer are guided to the mixer and an output signal of the fine-adjustment synthesizer is guided to an output end.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: April 30, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuhisa Yamauchi, Nobuhiro Tokumori, Kenji Miyasaka, Takashi Fujiwara, Masaki Kawamura
  • Publication number: 20180048323
    Abstract: A fine-adjustment synthesizer includes a fractional phase-locked loop having a reference integer frequency divider, a phase comparator, a loop filter, a frequency variable oscillator, a mixer, a hand-pass filter, and a feedback path programmable fractional frequency divider. A coarse-adjustment synthesizer includes an integer-type phase-locked loop having a reference integer frequency divider, a phase comparator, a loop filter, a frequency variable oscillator, a band-pass filter, and a feedback path programmable integer frequency divider. An output of a reference signal source is input in parallel to both the fine-adjustment synthesizer and the coarse-adjustment synthesizer. An output of the frequency variable oscillator in the fine-adjustment synthesizer and an output of the frequency variable oscillator in the coarse-adjustment synthesizer are guided to the mixer and an output signal of the fine-adjustment synthesizer is guided to an output end.
    Type: Application
    Filed: April 13, 2016
    Publication date: February 15, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazuhisa YAMAUCHI, Nobuhiro TOKUMORI, Kenji MIYASAKA, Takashi FUJIWARA, Masaki KAWAMURA
  • Patent number: 6963123
    Abstract: There is provided an IC package provided with one or more bare chips mounted on a chip carrier, a plurality of first bumps each for connecting a chip electrode to a conductive pad disposed on an upper surface of the chip carrier, a plurality of second bumps each connected to a conductive pad disposed on a bottom surface of the chip carrier, and a plurality of vias for connecting between conductive pads disposed on the upper and bottom surfaces of the chip carrier. A differential pair of lines are exposed on the upper surface of the chip carrier. High-frequency signals to be processed by the one or more bare chips are transmitted by way of the differential pair of lines, and other signals are transmitted by way of the plurality of second bumps.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: November 8, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toru Nagase, Minoru Tajima, Nobuhiro Tokumori
  • Patent number: 6940155
    Abstract: There is provided an IC package provided with one or more bare chips mounted on a chip carrier, a plurality of first bumps each for connecting a chip electrode to a conductive pad disposed on an upper surface of the chip carrier, a plurality of second bumps each connected to a conductive pad disposed on a bottom surface of the chip carrier, and a plurality of vias for connecting between conductive pads disposed on the upper and bottom surfaces of the chip carrier. A differential pair of lines are exposed on the upper surface of the chip carrier. High-frequency signals to be processed by the one or more bare chips are transmitted by way of the differential pair of lines, and other signals are transmitted by way of the plurality of second bumps.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: September 6, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toru Nagase, Minoru Tajima, Nobuhiro Tokumori
  • Publication number: 20030197257
    Abstract: There is provided an IC package provided with one or more bare chips mounted on a chip carrier, a plurality of first bumps each for connecting a chip electrode to a conductive pad disposed on an upper surface of the chip carrier, a plurality of second bumps each connected to a conductive pad disposed on a bottom surface of the chip carrier, and a plurality of vias for connecting between conductive pads disposed on the upper and bottom surfaces of the chip carrier. A differential pair of lines are exposed on the upper surface of the chip carrier. High-frequency signals to be processed by the one or more bare chips are transmitted by way of the differential pair of lines, and other signals are transmitted by way of the plurality of second bumps.
    Type: Application
    Filed: May 2, 2003
    Publication date: October 23, 2003
    Inventors: Toru Nagase, Minoru Tajima, Nobuhiro Tokumori
  • Publication number: 20030122228
    Abstract: There is provided an IC package provided with one or more bare chips mounted on a chip carrier, a plurality of first bumps each for connecting a chip electrode to a conductive pad disposed on an upper surface of the chip carrier, a plurality of second bumps each connected to a conductive pad disposed on a bottom surface of the chip carrier, and a plurality of vias for connecting between conductive pads disposed on the upper and bottom surfaces of the chip carrier. A differential pair of lines are exposed on the upper surface of the chip carrier. High-frequency signals to be processed by the one or more bare chips are transmitted by way of the differential pair of lines, and other signals are transmitted by way of the plurality of second bumps.
    Type: Application
    Filed: May 22, 2002
    Publication date: July 3, 2003
    Inventors: Toru Nagase, Minoru Tajima, Nobuhiro Tokumori