Patents by Inventor Masayuki Imamura

Masayuki Imamura 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: 20240163044
    Abstract: A communication apparatus includes a receiver and a transmitter. The receiver, in operation, receives from a neighboring cell a reference signal mapped to at least one first resource element. No signal is received from a serving cell on the at least one first resource element. The transmitter, in operation, transmits to a base station measurement information obtained based on the reference signal.
    Type: Application
    Filed: January 19, 2024
    Publication date: May 16, 2024
    Inventors: Hui TONG, Ming XU, Masayuki HOSHINO, Daichi IMAMURA
  • Patent number: 11963141
    Abstract: Method of scrambling signals, transmission point device, and user equipment using the method are provided. The method includes: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, wherein the blind detection for the UE is enabled and the signaling overhead is reduced.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: April 16, 2024
    Assignee: SUN PATENT TRUST
    Inventors: Zhi Zhang, Ming Xu, Masayuki Hoshino, Daichi Imamura, Akihiko Nishio
  • Publication number: 20240114377
    Abstract: To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Inventors: Yasuaki YUDA, Seigo NAKAO, Ayako HORIUCHI, Daichi IMAMURA, Masayuki HOSHINO, Atsushi SUMASU
  • Patent number: 11949626
    Abstract: The present disclosure provides a terminal device that allows constraints on user allocation to be prevented and spread codes to be allocated in a scheduler when non-adaptive HARQ is employed using a PHICH. A codeword generator generates code words by encoding data, a layer mapping unit places each CW in one or a plurality of layers, a DMRS generator generates a reference signal for each layer in which a CW is placed by using any resource among a plurality of resources defined by a mutually orthogonal plurality of OCCs, and an ACK/NACK demodulator receives a response signal indicating a retransmission request. When a response signal requesting retransmission of only a CW placed in a plurality of layers is received, the DMRS generator uses each resource having the same OCC among the plurality of resources for the reference signals generated in the corresponding layers.
    Type: Grant
    Filed: January 3, 2023
    Date of Patent: April 2, 2024
    Assignee: Sun Patent Trust
    Inventors: Masayuki Hoshino, Akihiko Nishio, Daichi Imamura
  • Patent number: 11916829
    Abstract: A communication apparatus includes a receiver and a transmitter. The receiver, in operation, receives from a neighboring cell a reference signal mapped to at least one first resource element. No signal is received from a serving cell on the at least one first resource element. The transmitter, in operation, transmits to a base station measurement information obtained based on the reference signal.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: February 27, 2024
    Assignee: Sun Patent Trust
    Inventors: Hui Tong, Ming Xu, Masayuki Hoshino, Daichi Imamura
  • Patent number: 8998352
    Abstract: A vehicle brake control device includes a master cylinder, a plurality of wheel cylinders, a VDC brake hydraulic pressure unit, a motor controller and an integration controller. When a brake operation is carried out, the integration controller carries out a regenerative brake control which achieves a target deceleration. Additionally, a motor suspension control is carried out which suspends a drive status of the VDC motor when the vehicle velocity is less than a first prescribed value. Furthermore, when the vehicle velocity exceeds a second prescribed value and the brake operation is carried out while the VDC motor is in the suspended status, the value of the target deceleration is set to a lower value than the value of the target deceleration which the driver requests, and a motor reactivation control is carried out which reactivates the VDC motor.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: April 7, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Masayuki Imamura
  • Publication number: 20130154344
    Abstract: A vehicle brake control device includes a master cylinder, a plurality of wheel cylinders, a VDC brake hydraulic pressure unit, a motor controller and an integration controller. When a brake operation is carried out, the integration controller carries out a regenerative brake control which achieves a target deceleration. Additionally, a motor suspension control is carried out which suspends a drive status of the VDC motor when the vehicle velocity is less than a first prescribed value. Furthermore, when the vehicle velocity exceeds a second prescribed value and the brake operation is carried out while the VDC motor is in the suspended status, the value of the target deceleration is set to a lower value than the value of the target deceleration which the driver requests, and a motor reactivation control is carried out which reactivates the VDC motor.
    Type: Application
    Filed: September 30, 2011
    Publication date: June 20, 2013
    Applicant: NISSAN MOTOR CO., LTD.
    Inventor: Masayuki Imamura
  • Patent number: 7406890
    Abstract: There is provided a steering control device for a vehicle of a new structure utilizing a ball screw mechanism for compacting the structure. The steering control device for a vehicle includes a first input shaft 1 connected to a handle, a second input shaft 2 connected to a motor 8, an output shaft 3 connected to a steering wheel, a first transmission 6 for rotating a nut 5 in accordance with the rotational motion of the first input shaft 1 so as to transmit the rotational motion of the first input shaft 1 to the rotational motion of the output shaft 3, and a second transmission 7 for moving the nut 5 linearly in the axial direction with respect to the output shaft 3 in accordance with the rotational motion of the second input shaft 2 so as to transmit the rotational motion of the second input shaft 2 to the rotational motion of the output shaft 3. The center line of the second input shaft and the center line of the output shaft are aligned on substantially the same straight line.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: August 5, 2008
    Assignee: THK Co., Ltd.
    Inventors: Katsuhiro Suda, Takao Nojiri, Naoki Hikosaka, Hidekazu Michioka, Masashi Konomoto, Hiroshi Kaneshige, Masayuki Imamura, Katsuya Iida, Takeomi Kawakami
  • Patent number: 7262262
    Abstract: The present invention has for its object to provide a resin composition for toner exhibiting excellent low temperature fixation performance, high temperature offset-resistance and anti-blocking performance and enabling a satisfactory color development, as well as a toner thereof. A resin composition for toner which compromises a polymer component capable of forming a physical crosslinking structure and a polyester not forming a physical crosslinking structure but having a glass transition point of 30 to 80° C. or a melting point of 50 to 120° C.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: August 28, 2007
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Kenichi Matsumura, Akihiro Niki, Masayuki Imamura
  • Publication number: 20060280394
    Abstract: A cross roller bearing includes an outer ring, an inner ring relatively rotatable with respect to the outer ring, and a plurality of rollers accommodated in a roller circulation passage formed between an outer ring side roller rolling groove formed to the outer ring and an inner ring side roller rolling groove formed to the inner ring so that rotational axes of the rollers intersect each other, and a gear is formed integrally with either one of the outer and inner rings.
    Type: Application
    Filed: April 13, 2004
    Publication date: December 14, 2006
    Applicant: Thk Co Ltd
    Inventors: Hidekazu Michioka, Masahiko Tamano, Masayuki Imamura
  • Publication number: 20060219036
    Abstract: A hypoid gear device is provided with a backlash eliminating unit arranged between a driven wheel and a driving pinion to be meshed with the driven wheel. The backlash eliminating unit includes a driven pinion mounted on the same shaft as that of the driving pinion so as to be meshed with the driven wheel, and an elastic member urging the driven pinion on the same shaft of the driving pinion in the direction reverse thereto.
    Type: Application
    Filed: April 23, 2004
    Publication date: October 5, 2006
    Applicant: THK CO., LTD.,
    Inventors: Hidekazu Michioka, Masahiko Tamano, Masayuki Imamura, Takeki Shirai, Daisuke Yatsushiro
  • Publication number: 20050178232
    Abstract: There is provided a steering control device for a vehicle of a new structure utilizing a ball screw mechanism for compacting the structure. The steering control device for a vehicle includes a first input shaft 1 connected to a handle, a second input shaft 2 connected to a motor 8, an output shaft 3 connected to a steering wheel, a first transmission 6 for rotating a nut 5 in accordance with the rotational motion of the first input shaft 1 so as to transmit the rotational motion of the first input shaft 1 to the rotational motion of the output shaft 3, and a second transmission 7 for moving the nut 5 linearly in the axial direction with respect to the output shaft 3 in accordance with the rotational motion of the second input shaft 2 so as to transmit the rotational motion of the second input shaft 2 to the rotational motion of the output shaft 3. The center line of the second input shaft and the center line of the output shaft are aligned on substantially the same straight line.
    Type: Application
    Filed: May 30, 2003
    Publication date: August 18, 2005
    Inventors: Katsuhiro Suda, Takao Najiri, Naoki Hikosaka, Hidekazu Michioka, Masashi Konomoto, Hiroshi Kaneshige, Masayuki Imamura, Katsuya Iida, Takeomi Kawakami
  • Publication number: 20040132920
    Abstract: The present invention has for its object to provide a resin composition for toner exhibiting excellent low temperature fixation performance, high temperature offset-resistance and anti-blocking performance and enabling a satisfactory color development, as well as a toner thereof.
    Type: Application
    Filed: February 25, 2004
    Publication date: July 8, 2004
    Inventors: Kenichi Matsumura, Akihiro Niki, Masayuki Imamura