Patents by Inventor Katsumi Nakagawa

Katsumi Nakagawa 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: 10791387
    Abstract: One of the plurality of first slave receiving apparatuses which serves as a reference first slave receiving apparatus repeatedly transmits a wireless control signal for controlling synchronization between a first receiving apparatus segment and a second receiving apparatus segment. One of the plurality of second slave receiving apparatuses which serves as a reference second slave receiving apparatus transmits a reference timing signal for performing synchronization in the second receiving apparatus segment including the reference second slave receiving apparatus to the second master receiving apparatus in synchronization with the wireless control signal.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: September 29, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takeshi Miyahara, Katsumi Nakagawa, Ryosuke Kitago, Hisayuki Sasaki
  • Patent number: 10615287
    Abstract: A novel amorphous oxide applicable, for example, to an active layer of a TFT is provided. The amorphous oxide comprises microcrystals.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: April 7, 2020
    Assignees: CANON KABUSHIKI KAISHA, TOKYO INSTITUTE OF TECHNOLOGY, JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Masafumi Sano, Katsumi Nakagawa, Hideo Hosono, Toshio Kamiya, Kenji Nomura
  • Patent number: 10561396
    Abstract: Provided are an ultrasonic probe capable of forming an image without degradation even when the frequency band of a photoacoustic wave and the frequency band of an ultrasonic wave used in ultrasonography are separated from each other, and an inspection object imaging apparatus including the ultrasonic probe. The ultrasonic probe includes a first array device capable of transmitting and receiving an ultrasonic wave; and a second array device capable of receiving a photoacoustic wave. The first array device includes plural electromechanical transducers arranged in a direction perpendicular to a scanning direction, the second array device includes plural electromechanical transducers arranged in a two-dimensional manner, and the first array device and the second array device are provided on the same plane and in the scanning direction.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: February 18, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Someda, Keishi Saito, Yasufumi Asao, Katsumi Nakagawa, Shigeru Ichihara
  • Patent number: 10484118
    Abstract: An intercom system includes first and second communication networks, a network connector (cable connector, reception driver, and transmission driver), an operation setter, and a connection controller. Each of the first and second communication networks includes an entrance slave device and an intercom master device, and performs communication by time division duplex. The network connector is used for connecting the communication networks. The operation setter sets share or unshare in order to indicate whether or not information stored in a slot is shared between the first communication network and the second communication network, for each slot. The connection controller controls the network connector to perform connection or disconnection (operation of transmission driver) between the first communication network and the second communication network, in accordance with settings of the share or the unshare.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: November 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Yamamoto, Katsumi Nakagawa, Naotaka Kusui, Toshio Hayashi
  • Publication number: 20190268683
    Abstract: One of the plurality of first slave receiving apparatuses which serves as a reference first slave receiving apparatus repeatedly transmits a wireless control signal for controlling synchronization between a first receiving apparatus segment and a second receiving apparatus segment. One of the plurality of second slave receiving apparatuses which serves as a reference second slave receiving apparatus transmits a reference timing signal for performing synchronization in the second receiving apparatus segment including the reference second slave receiving apparatus to the second master receiving apparatus in synchronization with the wireless control signal.
    Type: Application
    Filed: January 15, 2019
    Publication date: August 29, 2019
    Inventors: Takeshi MIYAHARA, Katsumi NAKAGAWA, Ryosuke KITAGO, Hisayuki SASAKI
  • Patent number: 10382873
    Abstract: In a wireless microphone system, a master device includes a master device control unit that generates a communication table in which a pair of a carrier wave and a slot which are used for communication with m microphone slave devices are set for one frame period, based on a total number of six carrier waves in a DECT system and n slots constituting one frame period of the DECT system, and k wireless processing units that perform communication using the DECT system with corresponding individual microphone slave devices among m microphone slave devices, based on the generated communication table. The k wireless processing units respectively operate synchronously based on the same clock signal.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: August 13, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Katsuya Abe, Katsumi Nakagawa, Hisayuki Sasaki, Ryosuke Kitago
  • Publication number: 20190200149
    Abstract: In a wireless microphone system, a master device includes a master device control unit that generates a communication table in which a pair of a carrier wave and a slot which are used for communication with m microphone slave devices are set for one frame period, based on a total number of six carrier waves in a DECT system and n slots constituting one frame period of the DECT system, and k wireless processing units that perform communication using the DECT system with corresponding individual microphone slave devices among m microphone slave devices, based on the generated communication table. The k wireless processing units respectively operate synchronously based on the same clock signal.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 27, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT D.
    Inventors: Katsuya ABE, Katsumi NAKAGAWA, Hisayuki SASAKI, Ryosuke KITAGO
  • Patent number: 10284357
    Abstract: A connection status detector of a controller determines that a two-wire cable is forward connected, in a case where a synchronization pattern of reception data completely coincides with a synchronization pattern for forward connection check. The connection status detector determines that the two-wire cable is reversely connected, in a case where the synchronization pattern of reception data completely coincides with a synchronization pattern for reverse connection check. A transmission data inverter reverses an uplink signal output from a transmission data processor, in a case where it is determined that the two-wire cable is reversely connected. A reception data inverter reverses a downlink signal output from a reception driver, in a case where it is determined that the two-wire cable is reversely connected.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 7, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Yamamoto, Katsumi Nakagawa, Naotaka Kusui, Toshio Hayashi
  • Publication number: 20190104945
    Abstract: An ultrasonic probe includes a light irradiating portion configured to radiate light for generating ultrasonic waves from a light absorber, an ultrasonic transducing portion configured to transduce the ultrasonic waves to an electric signal, and a light guide member configured to introduce light from a light source to the light irradiating portion. A light irradiating region of the light irradiating portion is included within an ultrasonic receiving region of the ultrasonic transducing portion.
    Type: Application
    Filed: December 4, 2018
    Publication date: April 11, 2019
    Inventors: Kenichi Nagae, Yasufumi Asao, Kazuhiko Fukutani, Katsumi Nakagawa
  • Patent number: 10251560
    Abstract: An image forming apparatus has acoustic transducers; and an image processing unit which calculates intensity of acoustic waves irradiated from regions inside a subject respectively by processing received signals, which are output from the acoustic transducers, by a Fourier-domain method. The image processing unit includes: a coefficient memory which stores coefficients computed in advance, the coefficient being a value determined only by a position of the acoustic transducer, position of the region and a time of receipt of the acoustic wave; a multiplier unit which multiplies the received signal of the acoustic transducer by the corresponding coefficient; and a voxel memory which accumulates multiplication results of the multiplier unit for each region.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: April 9, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Katsumi Nakagawa
  • Patent number: 10165948
    Abstract: An ultrasonic probe includes a light irradiating portion configured to radiate light for generating ultrasonic waves from a light absorber, an ultrasonic transducing portion configured to transduce the ultrasonic waves to an electric signal, and a light guide member configured to introduce light from a light source to the light irradiating portion. A light irradiating region of the light irradiating portion is included within an ultrasonic receiving region of the ultrasonic transducing portion.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: January 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichi Nagae, Yasufumi Asao, Kazuhiko Fukutani, Katsumi Nakagawa
  • Publication number: 20170258441
    Abstract: Provided are an ultrasonic probe capable of forming an image without degradation even when the frequency band of a photoacoustic wave and the frequency band of an ultrasonic wave used in ultrasonography are separated from each other, and an inspection object imaging apparatus including the ultrasonic probe. The ultrasonic probe includes a first array device capable of transmitting and receiving an ultrasonic wave; and a second array device capable of receiving a photoacoustic wave. The first array device includes plural electromechanical transducers arranged in a direction perpendicular to a scanning direction, the second array device includes plural electromechanical transducers arranged in a two-dimensional manner, and the first array device and the second array device are provided on the same plane and in the scanning direction.
    Type: Application
    Filed: May 31, 2017
    Publication date: September 14, 2017
    Inventors: Yasuhiro Someda, Keishi Saito, Yasufumi Asao, Katsumi Nakagawa, Shigeru Ichihara
  • Patent number: 9741213
    Abstract: Disclosed is a radio communication apparatus capable of stopping useless transmission of a calling signal to a locator. A calling apparatus transmits, using a near field radio communication apparatus, a calling signal to a locator attached to an item and outputting a notification sound, the calling signal being used for calling the locator. The calling apparatus periodically stands by for reception of a response signal from the locator using one slot when performing consecutive transmission of the calling signal to the locator using a plurality of slots. The calling apparatus stops the consecutive transmission of the calling signal by being triggered upon reception of the response signal from the locator.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: August 22, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shinya Hokazono, Takashi Watanabe, Katsumi Nakagawa
  • Patent number: 9693753
    Abstract: Provided are an ultrasonic probe capable of forming an image without degradation even when the frequency band of a photoacoustic wave and the frequency band of an ultrasonic wave used in ultrasonography are separated from each other, and an inspection object imaging apparatus including the ultrasonic probe. The ultrasonic probe includes a first array device capable of transmitting and receiving an ultrasonic wave; and a second array device capable of receiving a photoacoustic wave. The first array device includes plural electromechanical transducers arranged in a direction perpendicular to a scanning direction, the second array device includes plural electromechanical transducers arranged in a two-dimensional manner, and the first array device and the second array device are provided on the same plane and in the scanning direction.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 4, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Someda, Keishi Saito, Yasufumi Asao, Katsumi Nakagawa, Shigeru Ichihara
  • Publication number: 20170187479
    Abstract: An intercom system includes first and second communication networks, a network connector (cable connector, reception driver, and transmission driver), an operation setter, and a connection controller. Each of the first and second communication networks includes an entrance slave device and an intercom master device, and performs communication by time division duplex. The network connector is used for connecting the communication networks. The operation setter sets share or unshare in order to indicate whether or not information stored in a slot is shared between the first communication network and the second communication network, for each slot. The connection controller controls the network connector to perform connection or disconnection (operation of transmission driver) between the first communication network and the second communication network, in accordance with settings of the share or the unshare.
    Type: Application
    Filed: November 2, 2016
    Publication date: June 29, 2017
    Inventors: Takashi Yamamoto, Katsumi Nakagawa, Naotaka Kusui, Toshio Hayashi
  • Publication number: 20170134152
    Abstract: A connection status detector of a controller determines that a two-wire cable is forward connected, in a case where a synchronization pattern of reception data completely coincides with a synchronization pattern for forward connection check. The connection status detector determines that the two-wire cable is reversely connected, in a case where the synchronization pattern of reception data completely coincides with a synchronization pattern for reverse connection check. A transmission data inverter reverses an uplink signal output from a transmission data processor, in a case where it is determined that the two-wire cable is reversely connected. A reception data inverter reverses a downlink signal output from a reception driver, in a case where it is determined that the two-wire cable is reversely connected.
    Type: Application
    Filed: October 24, 2016
    Publication date: May 11, 2017
    Inventors: Takashi Yamamoto, Katsumi Nakagawa, Naotaka Kusui, Toshio Hayashi
  • Publication number: 20170125605
    Abstract: A novel amorphous oxide applicable, for example, to an active layer of a TFT is provided. The amorphous oxide comprises microcrystals.
    Type: Application
    Filed: January 10, 2017
    Publication date: May 4, 2017
    Inventors: MASAFUMI SANO, KATSUMI NAKAGAWA, HIDEO HOSONO, TOSHIO KAMIYA, KENJI NOMURA
  • Publication number: 20170112385
    Abstract: An ultrasonic probe includes a light irradiating portion configured to radiate light for generating ultrasonic waves from a light absorber, an ultrasonic transducing portion configured to transduce the ultrasonic waves to an electric signal, and a light guide member configured to introduce light from a light source to the light irradiating portion. A light irradiating region of the light irradiating portion is included within an ultrasonic receiving region of the ultrasonic transducing portion.
    Type: Application
    Filed: January 4, 2017
    Publication date: April 27, 2017
    Inventors: Kenichi Nagae, Yasufumi Asao, Kazuhiko Fukutani, Katsumi Nakagawa
  • Patent number: 9629099
    Abstract: A radio communication apparatus and transmission power control method are disclosed, which can maintain communication with handsets while avoiding an increase in radio interference to another radio communication system as much as possible when radio communication is performed with one or more handsets. The handset transmits a communication start request signal to a base unit. Upon verifying the reception of the communication start request, the base unit measures the RSSI level of the communication start request signal transmitted from the handset, determines a transmission power value based on a power control table that has been updated with the measured RSSI level, and controls the transmission power of a control signal transmitted to the handset.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: April 18, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Ken Ohbuchi, Takashi Yamamoto, Kouji Yoshida, Takashi Terada, Shinji Fukuda, Katsumi Nakagawa
  • Patent number: 9583637
    Abstract: A novel amorphous oxide applicable, for example, to an active layer of a TFT is provided. The amorphous oxide comprises microcrystals.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: February 28, 2017
    Assignees: Canon Kabushiki Kaisha, Tokyo Institute of Technology, Japan Science and Technology Agency
    Inventors: Masafumi Sano, Katsumi Nakagawa, Hideo Hosono, Toshio Kamiya, Kenji Nomura