Patents by Inventor Tsuyoshi Hasegawa

Tsuyoshi Hasegawa 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: 20170281063
    Abstract: An extracorporeal blood circulation management device having an oxygenator accurately determines oxygen consumption by the target person and oxygen delivery by the oxygenator. Oxygenation-related parameter values in the blood are determined at regular intervals. An in-body passing time (a cycle time for a particular volume of blood to pass from input sensors to output sensors) is determined. Parameter values separated by the in-body passing time are selected as comparison targets to evaluate oxygenation consumption of the target person. An oxygenator unit passing time is determined. Parameter values separated by the oxygenator unit passing time are selected as comparison targets to evaluate oxygenation delivery of the oxygenation unit.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Inventors: Tomoki Utsugida, Tomoaki Hashimoto, Tsuyoshi Hasegawa
  • Patent number: 9758513
    Abstract: The present invention provides a compound which has an effect of inhibiting amyloid ? production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or prophylactic agent for diseases induced by production, secretion and/or deposition of amyloid ? proteins. A compound of the formula (I): wherein X is —C(R3a)(R3b)—, —C(R3a)(R3b)—C(R3c)(R3d)— or —C(R3a)?C(R3c)—, R1 is substituted or unsubstituted alkyl or the like, R2a, R2b, R3a, R3b, R3c and R3d are each independently hydrogen, halogen or the like, R4 is hydrogen or halogen, Ring B is substituted or unsubstituted carbocycle or a substituted or unsubstituted heterocycle, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: September 12, 2017
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Ken-ichi Kusakabe, Syuhei Yoshida, Kenji Nakahara, Tsuyoshi Hasegawa, Genta Tadano, Kouki Fuchino
  • Publication number: 20170250742
    Abstract: A communication device including a memory and a processor coupled to the memory and the processor configured to specify eigenvalues of a solution matrix of a first equation, the first equation being base on a channel matrix representing a channel state between a first communication device and the communication device, the first communication device being a communication device different from a communication device of a transmission destination, the eigenvalues being specified by using a second equation about the eigenvalues, specify eigenvectors of the solution matrix based on the specified eigenvalues, generate weight information corresponding to a plurality of antennas based on the eigenvalues and the eigenvectors, and transmit a signal weighted based on the weight information to the communication device of the transmission destination by the plurality of antennas.
    Type: Application
    Filed: February 23, 2017
    Publication date: August 31, 2017
    Inventor: Tsuyoshi HASEGAWA
  • Patent number: 9690750
    Abstract: An arithmetic device including: a plurality of parallel processors, and a processor configured to control the plurality of parallel processors so as to calculate an approximate solution of an equation by using a first algorithm and a second algorithm switchably, each of the first algorithm and the second algorithm being algorithms providing an iterative method, the second algorithm causing a divergence more likely than the first algorithm, the second algorithm being performed more efficiently by the plurality of parallel processors than the first algorithm, the first algorithm and the second algorithm being switched each other between at least one pair of iterative steps of the iterative method.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: June 27, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Tsuyoshi Hasegawa
  • Patent number: 9688643
    Abstract: The present invention provides a novel P2X3 and/or P2X2/3 receptor antagonist. A compound represented by the formula (I): wherein Ra, Rb and Rc are, (a) Ra and Rb are taken together ?Z; and Rc is a group represented by R1c; or (b) Rb and Rc are taken together to form a bond; and Ra is a group represented by —Y—R1a; R1a and R1c are each independently hydrogen, substituted or unsubstituted alkyl, etc.; R2 and R3 are each independently substituted or unsubstituted aryl, etc.; R4a and R4b are each independently hydrogen, substituted or unsubstituted alkyl, etc.; X is —N(R5)—, etc.; R5 is hydrogen, substituted or unsubstituted lower alkyl, etc.; —Y— is —O—, etc.; ?Z is ?O, etc.; and n is an integer of 0 to 4.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: June 27, 2017
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Hiroyuki Kai, Takayuki Kameyama, Tsuyoshi Hasegawa, Miho Oohara, Yukio Tada, Takeshi Endoh
  • Publication number: 20170008881
    Abstract: The present invention provides a compound which has an effect of inhibiting amyloid ? production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or prophylactic agent for diseases induced by production, secretion and/or deposition of amyloid ? proteins. A compound of the formula (I): wherein X is —C(R3a)(R3b)—, —C(R3a)(R3b)—C(R3c)(R3d)— or —C(R3a)?C(R3c)—, R1 is substituted or unsubstituted alkyl or the like, R2a, R2b, R3a, R3b, R3c and R3d are each independently hydrogen, halogen or the like, R4 is hydrogen or halogen, Ring B is substituted or unsubstituted carbocycle or a substituted or unsubstituted heterocycle, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: September 21, 2016
    Publication date: January 12, 2017
    Inventors: Ken-ichi KUSAKABE, Syuhei YOSHIDA, Kenji Nakahara, Tsuyoshi HASEGAWA, Genta TADANO, Kouki FUCHINO
  • Patent number: 9540359
    Abstract: The present invention provides a compound which has an effect of inhibiting amyloid ? production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or prophylactic agent for diseases induced by production, secretion and/or deposition of amyloid ? proteins. A compound of the formula (I): wherein X is —C(R3a)(R3b)—, —C(R3a)(R3b)—C(R3c)(R3d)— or —C(R3a)?C(R3c)—, R1 is substituted or unsubstituted alkyl or the like, R2a, R2b, R3a, R3b, R3c and R3d are each independently hydrogen, halogen or the like, R4 is hydrogen or halogen, Ring B is substituted or unsubstituted carbocycle or a substituted or unsubstituted heterocycle, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: January 10, 2017
    Assignee: Shionogi & Co., Ltd.
    Inventors: Ken-ichi Kusakabe, Syuhei Yoshida, Kenji Nakahara, Tsuyoshi Hasegawa, Genta Tadano, Kouki Fuchino
  • Patent number: 9525456
    Abstract: A communication processor in a receiving device includes a chip equalizer, a correction matrix calculating unit, and a correction unit. The chip equalizer equalizes a plurality of reception signal sequences received via an antenna. The correction matrix calculating unit calculates a correction matrix by using a channel matrix, a weight of an equalizer, a power ratio of a pilot signal to a reception signal, a number of multi codes, and a spreading factor of the reception signal sequences. The correction unit corrects, by using the correction matrix, the reception signal sequences equalized by the chip equalizer.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 20, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Tsuyoshi Hasegawa
  • Publication number: 20160295590
    Abstract: A base station includes a determining unit, and a change unit. The determining unit determines, for each terminal, whether reception quality of an uplink signal from the terminal is equal to or smaller than a certain threshold. The change unit performs first processing or second processing when the reception quality is equal to or smaller than the certain threshold. The first processing is the processing of instructing a first terminal, a terminal of a transmission source of an uplink signal, to change the frequency of the uplink signal of the first terminal to the frequency of either an uplink or a downlink signal assigned to each terminal. The second processing is the processing of changing the frequency of a downlink signal identical to that of the uplink signal from the first terminal to the frequency of either an uplink or a downlink signal assigned to each terminal.
    Type: Application
    Filed: March 23, 2016
    Publication date: October 6, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Hiroaki Arai, Tsuyoshi Hasegawa, Tokuro Kubo
  • Publication number: 20160197749
    Abstract: A wireless communication system includes: a plurality of transmitting antennas; one or more receiving antennas; and a controller. The controller controls, based on a weight matrix, a weight on a signal to be transmitted from the plurality of transmitting antennas, the weight matrix coming to be a null matrix when being multiplied by a block matrix, the block matrix having, as blocks, a plurality of matrices obtained by selecting elements corresponding to a number of the plurality of transmitting antennas from a channel matrix. The channel matrix represents a plurality of propagation channels between the plurality of the transmitting antennas and the one or more receiving antennas.
    Type: Application
    Filed: January 4, 2016
    Publication date: July 7, 2016
    Applicant: FUJITSU LIMITED
    Inventor: Tsuyoshi Hasegawa
  • Publication number: 20160185736
    Abstract: The present invention provides a novel P2X3 and/or P2X2/3 receptor antagonist. A compound represented by the formula (I): wherein Ra, Rb and Rc are, (a) Ra and Rb are taken together ?Z; and Rc is a group represented by R1c; or (b) Rb and Rc are taken together to form a bond; and Ra is a group represented by —Y—R1a; R1a and R1c are each independently hydrogen, substituted or unsubstituted alkyl, etc.; R2 and R3 are each independently substituted or unsubstituted aryl, etc.; R4a and R4b are each independently hydrogen, substituted or unsubstituted alkyl, etc.; X is —N(R5)—, etc.; R5 is hydrogen, substituted or unsubstituted lower alkyl, etc.; —Y— is —O—, etc.; ?Z is ?O, etc.; and n is an integer of 0 to 4.
    Type: Application
    Filed: July 23, 2015
    Publication date: June 30, 2016
    Inventors: Hiroyuki KAI, Takayuki KAMEYAMA, Tsuyoshi HASEGAWA, Miho OOHARA, Yukio TADA, Takeshi ENDOH
  • Patent number: 9374249
    Abstract: A communication processor of a receiving apparatus includes a channel matrix calculation unit, a noise power calculation unit, and an interference orthogonalization equalizer. The channel matrix calculation unit calculates a channel matrix of a propagation path based on a reception signal. The noise power calculation unit calculates noise power included in the reception signal. The interference orthogonalization equalizer orthogonalizes an interference signal by equalizing the reception signal by using the channel matrix and the noise power.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 21, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Tsuyoshi Hasegawa
  • Publication number: 20160105294
    Abstract: A communication processor of a receiving apparatus includes a channel matrix calculation unit, a noise power calculation unit, and an interference orthogonalization equalizer. The channel matrix calculation unit calculates a channel matrix of a propagation path based on a reception signal. The noise power calculation unit calculates noise power included in the reception signal. The interference orthogonalization equalizer orthogonalizes an interference signal by equalizing the reception signal by using the channel matrix and the noise power.
    Type: Application
    Filed: September 10, 2015
    Publication date: April 14, 2016
    Inventor: Tsuyoshi Hasegawa
  • Publication number: 20160065266
    Abstract: A communication processor in a receiving device includes a chip equalizer, a correction matrix calculating unit, and a correction unit. The chip equalizer equalizes a plurality of reception signal sequences received via an antenna. The correction matrix calculating unit calculates a correction matrix by using a channel matrix, a weight of an equalizer, a power ratio of a pilot signal to a reception signal, a number of multi codes, and a spreading factor of the reception signal sequences. The correction unit corrects, by using the correction matrix, the reception signal sequences equalized by the chip equalizer.
    Type: Application
    Filed: July 8, 2015
    Publication date: March 3, 2016
    Inventor: Tsuyoshi Hasegawa
  • Patent number: 9240829
    Abstract: A transmitting apparatus includes multiple antennas between which an antenna interval is variable; and a transmitter that transmits a pilot signal using an antenna selected from among the antennas and based on a correlation value representing correlation between the antennas.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: January 19, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Tsuyoshi Hasegawa
  • Patent number: 9220026
    Abstract: A measuring unit measures channel values of propagation channels based on a pilot signal transmitted from a wireless terminal. An interpolation coefficient calculating unit calculates interpolation coefficients used to estimate channel values for one of antennas of the wireless terminal by using channel values for the rest of the antennas of the wireless terminal, which channel values are measured by the measuring unit. An estimate value calculating unit estimates the channel values for the one of the antennas of the wireless terminal based on the interpolation coefficients calculated by the interpolation coefficient calculating unit and the channel values for the rest of the antennas of the wireless terminal measured by the measuring unit.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: December 22, 2015
    Assignee: FUJITSU LIMITED
    Inventor: Tsuyoshi Hasegawa
  • Patent number: 9203483
    Abstract: A reception apparatus includes a plurality of reception antennas configured to receive transmission signals transmitted from a plurality of transmission antennas, a first interference processing section configured to perform a weighting processing of imparting a weight to reduce a multipath interference component corresponding to an intersymbol interference based on a multipath while leaving an inter-antenna interference component corresponding to an interference component imparted by a transmission signal from one transmission antenna on the transmission signal from another transmission antenna among the plurality of transmission antennas with respect to each of a plurality of reception signals received by the plurality of reception antennas, and a second interference processing section configured to remove the inter-antenna interference component with respect to each of the plurality of reception signals on which the weighting processing is performed.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: December 1, 2015
    Assignee: FUJITSU LIMITED
    Inventor: Tsuyoshi Hasegawa
  • Patent number: 9178729
    Abstract: A wireless communication apparatus includes a wireless section configured to receive a plurality of signals via a plurality of antennae from a transmitting device having another plurality of antennae; and a demodulation section configured to apply QR decomposition to a channel matrix generated based on the received signals from the wireless section, to extract a plurality of weight coefficients corresponding to a symbol to be demodulated from a unitary matrix Q, to filter the received signals weighted with the weight coefficients, and to separate the filtered received signals based on a submatrix of an upper triangular matrix R.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: November 3, 2015
    Assignee: FUJITSU LIMITED
    Inventor: Tsuyoshi Hasegawa
  • Patent number: RE46365
    Abstract: A novel compound which is useful as an agent for treating and/or preventing emesis, vomiting and/or constipation. A compound represented by the formula (I): wherein R1 and R2 are each independently hydrogen, optionally substituted lower alkyl, optionally substituted lower alkenyl, optionally substituted cycloalkyl, optionally substituted aryl etc., R3 is hydrogen, hydroxy, optionally substituted lower alkyl, optionally substituted lower alkenyl, optionally substituted lower alkynyl, optionally substituted lower alkoxy etc., R4 is hydrogen or lower alkyl, R5 is hydrogen, lower alkyl, cycloalkyl lower alkyl or lower alkenyl, or a pharmaceutically acceptably salt, or a solvate thereof is provided.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: April 11, 2017
    Assignee: Shionogi & Co., Ltd.
    Inventors: Masanao Inagaki, Shin-ichiro Hara, Nobuhiro Haga, Yoshinori Tamura, Yoshihisa Goto, Tsuyoshi Hasegawa
  • Patent number: RE46375
    Abstract: A novel compound which is useful as an agent for treating and/or preventing emesis, vomiting and/or constipation. A compound represented by the formula (I): wherein R1 and R2 are each independently hydrogen, optionally substituted lower alkyl, optionally substituted lower alkenyl, optionally substituted cycloalkyl, optionally substituted aryl etc., R3 is hydrogen, hydroxy, optionally substituted lower alkyl, optionally substituted lower alkenyl, optionally substituted lower alkynyl, optionally substituted lower alkoxy etc., R4 is hydrogen or lower alkyl, R5 is hydrogen, lower alkyl, cycloalkyl lower alkyl or lower alkenyl, or a pharmaceutically acceptably acceptable salt, or a solvate thereof is provided.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: April 25, 2017
    Assignee: Shionogi & Co., Ltd.
    Inventors: Masanao Inagaki, Shin-ichiro Hara, Nobuhiro Haga, Yoshinori Tamura, Yoshihisa Goto, Tsuyoshi Hasegawa