Patents by Inventor Hideki Nishizawa

Hideki Nishizawa 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: 20210115048
    Abstract: The present invention provides a compound or a salt thereof having a calcium-sensing receptor antagonistic activity, and being expected to be useful as an agent for preventing or treating heart failure, pulmonary hypertension, or the like. The compounds represented by formula (I) or a salt thereof has a calcium-sensing receptor antagonistic activity, and is expected to be useful as an agent for preventing or treating heart failure, pulmonary hypertension, or the like, wherein each symbol is as described in the specification.
    Type: Application
    Filed: April 26, 2018
    Publication date: April 22, 2021
    Inventors: Shuji KITAMURA, Zenichi IKEDA, Minoru IKOMA, Koji WATANABE, Hideki HIROSE, Takafumi YUKAWA, Sachie MORIMOTO, Naoki NISHIZAWA, Taiji ASAMI
  • Publication number: 20210028857
    Abstract: There is provided an optical transmission system in which a plurality of optical transmission and reception apparatuses perform 1-to-N transmission and reception of optical signals (N is an integer equal to or greater than 1), the optical transmission system being configured to select a communication condition that includes at least a modulation scheme or a baud rate and is a communication condition when each of the optical transmission and reception apparatuses performs transmission and reception in accordance with a transmission line condition that is between any one first optical transmission and reception apparatus and each of second optical transmission and reception apparatuses, which are N grounds, other than the first optical transmission and reception apparatus.
    Type: Application
    Filed: March 1, 2019
    Publication date: January 28, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Fumikazu INUZUKA, Shokei KOBAYASHI, Akira HIRANO, Wataru KAWAKAMI, Tetsuro INUI, Seiki KUWABARA, Kei KITAMURA, Takafumi TANAKA, Takuya ODA, Hideki NISHIZAWA, Seiji OKAMOTO
  • Publication number: 20210013963
    Abstract: A state estimating device includes a pre-processing unit and an estimating unit. The pre-processing unit acquires data representing at one or more of a phase of a signal transmitted from a transmission unit of a transmission device and received at a reception unit of another transmission device via a transmission path, a reception strength, a reception quality, a voltage after conversion into an electric signal, and a signal processing parameter used in reception processing, and processes the acquired data into feature data to be used for state estimation. The estimating unit estimates a state of the transmission path, an abnormal state of the transmission unit, or an abnormal state of the reception unit, on the basis of the feature data.
    Type: Application
    Filed: February 13, 2019
    Publication date: January 14, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Seiki KUWABARA, Wataru KAWAKAMI, Hideki NISHIZAWA, Seiji OKAMOTO, Akira HIRANO, Shokei KOBAYASHI, Tetsuro INUI, Takuya ODA, Fumikazu INUZUKA, Takafumi TANAKA
  • Patent number: 10685095
    Abstract: A processing equipment includes a processing unit having a plurality of functions. A retaining unit retains a device identifier capable of identifying the processing equipment. An interface unit receives a function authentication key which is a code for setting a specific function among the plurality of functions to be enabled or disabled. A control unit sets the specific function to be enabled or disabled according to the function authentication key when a device identifier included in the received function authentication key coincides with the device identifier retained in the retaining unit.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: June 16, 2020
    Assignees: NTT ELECTRONICS CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Etsushi Yamazaki, Osamu Ishida, Kazuhito Takei, Yasuhiro Suzuki, Hideki Nishizawa
  • Patent number: 10122465
    Abstract: Signal processing sections selectively switch modulation/demodulation in low-efficiency modulation system and modulation/demodulation in high-efficiency modulation system, and perform digital signal processing. Parallel-side interfaces of input/output interface sections are electrically connected to the signal processing section. A serial-side interface of the input/output interface section is electrically connected to a serial-side interface of the input/output interface section. A selection section electrically connects a parallel-side interface of the input/output interface section to the signal processing section when the low-efficiency modulation system is selected, and electrically connects the parallel-side interface of the input/output interface section to a parallel-side interface of the input/output interface section when the high-efficiency modulation system is selected.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: November 6, 2018
    Assignees: NTT ELECTRONICS CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Osamu Ishida, Etsushi Yamazaki, Kazuhito Takei, Masahito Tomizawa, Hideki Nishizawa
  • Publication number: 20180152247
    Abstract: Signal processing sections selectively switch modulation/demodulation in low-efficiency modulation system and modulation/demodulation in high-efficiency modulation system, and perform digital signal processing. Parallel-side interfaces of input/output interface sections are electrically connected to the signal processing section. A serial-side interface of the input/output interface section is electrically connected to a serial-side interface of the input/output interface section. A selection section electrically connects a parallel-side interface of the input/output interface section to the signal processing section when the low-efficiency modulation system is selected, and electrically connects the parallel-side interface of the input/output interface section to a parallel-side interface of the input/output interface section when the high-efficiency modulation system is selected.
    Type: Application
    Filed: September 5, 2016
    Publication date: May 31, 2018
    Inventors: Osamu ISHIDA, Etsushi YAMAZAKI, Kazuhito TAKEI, Masahito TOMIZAWA, Hideki NISHIZAWA
  • Publication number: 20180068095
    Abstract: A processing equipment includes a processing unit having a plurality of functions. A retaining unit retains a device identifier capable of identifying the processing equipment. An interface unit receives a function authentication key which is a code for setting a specific function among the plurality of functions to be enabled or disabled. A control unit sets the specific function to be enabled or disabled according to the function authentication key when a device identifier included in the received function authentication key coincides with the device identifier retained in the retaining unit.
    Type: Application
    Filed: March 3, 2016
    Publication date: March 8, 2018
    Inventors: Etsushi YAMAZAKI, Osamu ISHIDA, Kazuhito TAKEI, Yasuhiro SUZUKI, Hideki NISHIZAWA
  • Patent number: 7598695
    Abstract: A quadruped walking robot, comprising a body part having a horizontal swing part, a horizontal swing drive part, an upper side upper leg part pivotally supported on the horizontal swing part, a lower side upper leg part disposed parallel with the lower part of the upper side upper leg part, an upper leg rotatingly driving part rotatingly driving the upper side upper leg part, a lower leg part having an upper end part to which the tip part of the upper side upper leg part and the tip part of the lower side upper leg part are pivotally connected on the upper and lower sides, and ground-contact part disposed at the lower end part of the lower leg part, and an elastic extensible part disposed at the middle part of the lower side upper leg part and elastically extending/retracting in the longitudinal direction.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: October 6, 2009
    Assignees: Tmsuk Co., Ltd.
    Inventors: Atsuo Takanishi, Yoichi Takamoto, Katsuyuki Baba, Hideki Nishizawa
  • Publication number: 20080252247
    Abstract: The present invention provides a quadruped walking robot the production costs and weight of which can be reduced by reducing the number of driving portions, and which is capable of carrying out stabilized walking motions even with the degree of freedom reduced in the leg portions.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 16, 2008
    Applicants: TMSUK CO. LTD, TAKANISHI ATSUO
    Inventors: Atsuo Takanishi, Yoichi Takamoto, Katsuyuki Baba, Hideki Nishizawa