Patents by Inventor Kazuhiro Yamanaka

Kazuhiro Yamanaka 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: 20230037301
    Abstract: A new photosensitive resin composition based on a polysiloxane, that is, a negative photosensitive resin composition is provided. A negative photosensitive resin composition includes (A) a polysiloxane compound containing a first structural unit represented by the following general formula (1), (B) a photoinduced curing accelerator, and (C) a solvent.
    Type: Application
    Filed: September 15, 2022
    Publication date: February 9, 2023
    Inventors: Takashi MASUBUCHI, Yuri OIKAWA, Kazuhiro YAMANAKA, Rikako YOTSUMOTO
  • Publication number: 20230039535
    Abstract: A composition including a polysiloxane compound (A) containing a structural unit represented by formula (1) and a structural unit represented by formula (2), wherein a siloxane structural unit ratio represented by Q unit/(Q unit+T unit) in all Si structural units is 0.60 or more and less than 1.00, and the solvent (B). [(R1)b(R2)m(OR3)lSiOn/2]??(1) [In the formula, R1 is a group represented by following formula.
    Type: Application
    Filed: September 14, 2022
    Publication date: February 9, 2023
    Inventors: Yuri OIKAWA, Takashi MASUBUCHI, Kazuhiro YAMANAKA
  • Patent number: 11547390
    Abstract: Information relevant to a state of a tissue in a subject (state information) is provided with technology reducing the amount of memory and computation necessary at the time of extracting the information. An ultrasonic wave is transmitted towards a subject, a transmission wave transmitted through the subject or a reflection wave reflected on the subject is received. A reception signal is generated on the basis of the transmission wave or the reflection wave. A tissue region candidate, of a region indicating a tissue of the subject, is set on the basis of the reception signal. State information, which is information relevant to a state of the tissue in the tissue region candidate, is calculated on the basis of the reception signal and the tissue region candidate. An ultrasonic image reflecting the state information is generated on the basis of the state information and displayed.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: January 10, 2023
    Assignee: FUJIFILM HEALTHCARE CORPORATION
    Inventors: Kazuhiro Yamanaka, Kenichi Kawabata, Takahide Terada, Yushi Tsubota, Wenjing Wu
  • Patent number: 11518826
    Abstract: A method for producing a polytetrafluoroethylene powder, which includes applying an ultrasonic wave to a polytetrafluoroethylene aqueous dispersion containing polytetrafluoroethylene particles to coagulate the polytetrafluoroethylene particles.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: December 6, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuhiro Mishima, Takahiro Taira, Chiaki Okui, Takayuki Tanaka, Masayoshi Miyamoto, Taku Yamanaka
  • Publication number: 20220384182
    Abstract: Provided is a silicon-containing layer forming composition for forming a silicon-containing layer which exhibits an anti-reflective function during exposure in a multilayer resist process and, during dry etching, shows a high etching rate against a plasma of fluorine-based gas and a low etching rate against a plasma of oxygen-based gas. The silicon-containing layer forming composition includes a polysiloxane compound having a structural unit of the formula: [(R1)bR2mSiOn/2] and a solvent. In the formula, R1 is a group represented by the following formula: (where a is an integer of 1 to 5; and a wavy line means that a line which the wavy line intersects is a bond); R2 is each independently a hydrogen atom, a C1-C3 alkyl group, a phenyl group, a hydroxy group, a C1-C3 alkoxy group or a C1-C3 fluoroalkyl group; b is an integer of 1 to 3; m is an integer of 0 to 2; n is an integer of 1 to 3; and a relationship of b+m+n=4 is satisfied.
    Type: Application
    Filed: July 26, 2022
    Publication date: December 1, 2022
    Inventors: Junya NAKATSUJI, Kazuhiro YAMANAKA
  • Patent number: 11461938
    Abstract: An object of the invention is to provide a user with information that serves as a material for determining whether an image generated by processing including a neural network is valid. A reception signal output by an ultrasonic probe that has received an ultrasonic wave from a subject is received, and an ultrasonic image is generated based on the reception signal. A trained neural network receives the reception signal or the ultrasonic image, and outputs an estimated reception signal or an estimated ultrasonic image. A validity information generation unit generates information indicating validity of the estimated reception signal or the estimated ultrasonic image by using one or more of the reception signal, the ultrasonic image, the estimated reception signal, the estimated ultrasonic image, and output of an intermediate layer of the neural network.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: October 4, 2022
    Assignee: FUJIFILM HEALTHCARE CORPORATION
    Inventors: Kazuhiro Yamanaka, Hiroki Tanaka, Junichi Shiokawa, Tomofumi Nishiura
  • Patent number: 11437237
    Abstract: Provided is a silicon-containing layer forming composition for forming a silicon-containing layer which exhibits an anti-reflective function during exposure in a multilayer resist process and, during dry etching, shows a high etching rate against a plasma of fluorine-based gas and a low etching rate against a plasma of oxygen-based gas. The silicon-containing layer forming composition includes a polysiloxane compound having a structural unit of the formula and a solvent. [(R1)bR2mSiOn/2] In the formula, R1 is a group represented by the following formula: (where a is an integer of 1 to 5; and a wavy line means that a line which the wavy line intersects is a bond); R2 is each independently a hydrogen atom, a C1-C3 alkyl group, a phenyl group, a hydroxy group, a C1-C3 alkoxy group or a C1-C3 fluoroalkyl group; b is an integer of 1 to 3; m is an integer of 0 to 2; n is an integer of 1 to 3; and a relationship of b+m+n=4 is satisfied).
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: September 6, 2022
    Assignee: Central Glass Company, Limited
    Inventors: Junya Nakatsuji, Kazuhiro Yamanaka
  • Patent number: 11369338
    Abstract: In an ultrasonic CT device for breast examination, unevenness of an ultrasonic image due to a distribution of inclination angles of a breast is reduced. The distribution of the inclination angles of a surface of a subject in a contour of the subject is obtained from a tomographic image, and a signal level of a reception signal or a pixel value of the tomographic image is corrected using the distribution of the inclination angles.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: June 28, 2022
    Assignee: FUJIFILM HEALTHCARE CORPORATION
    Inventors: Yushi Tsubota, Kenichi Kawabata, Takahide Terada, Atsurou Suzuki, Wenjing Wu, Kazuhiro Yamanaka
  • Patent number: 11259775
    Abstract: Provided is a device that transmits and receives an ultrasonic wave to and from an entire periphery of a specimen while preventing a movement of the specimen. An ultrasonic wave transmission and reception device includes: an oscillator array that is arrayed with an oscillator, the oscillator transmitting and receiving an ultrasonic wave; a fixing tool that is disposed between the oscillator array and the specimen and retains the specimen; and a drive mechanism that presses at least a part of the fixing tool against the specimen as to retain the specimen. An ultrasonic wave transmitted by the oscillator array passes through the fixing tool and irradiates on the specimen, and as for the oscillator array, the oscillator array and the fixing tool are disposed in a positional relationship such that the ultrasonic wave reflected by and/or passing through by the specimen and passing through the fixing tool is received.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: March 1, 2022
    Assignee: FUJIFILM HEALTHCARE CORPORATION
    Inventors: Kazuhiro Yamanaka, Kenichi Kawabata, Takahide Terada, Atsurou Suzuki, Yushi Tsubota, Wenjing Wu
  • Publication number: 20220031282
    Abstract: A sound wave is transmitted to a subject from one or more transducers in an transducer array in which a plurality of the transducers are arranged. A measured sound pressure measured by a plurality of transducers for the sound wave transmitted through an imaging region of the subject is received from the transducers. The measured sound pressure is processed to generate a transmitted wave image in the imaging region. A simulated sound wave having a sound pressure changing with time is generated from a simulated sound source, the sound pressure when the simulated sound wave is transmitted through the imaging region and reaches a plurality of simulated detectors is obtained by calculation as a calculated sound pressure, and the transmitted wave image is sequentially corrected using the calculated sound pressure with the transmitted wave image as an initial image.
    Type: Application
    Filed: May 28, 2021
    Publication date: February 3, 2022
    Inventors: Atsuro SUZUKI, Yushi TSUBOTA, Takahide TERADA, Kazuhiro YAMANAKA, Kenichi KAWABATA
  • Publication number: 20210395461
    Abstract: Provided is a polysiloxane composition containing a polysiloxane compound including a constitutional unit represented by Formula (1) and at least one of a constitutional unit of Formula (2) and a constitutional unit of Formula (3), and a solvent. [(Rx)bR1mSiOn/2]??(1) [(Ry)cR2pSiOq/2]??(2) [SiO4/2]??(3) Here, Rx is a monovalent group represented by Formula (1a) (X is a hydrogen atom or an acid-labile group, a is an integer of 1 to 5, and a broken line represents a bond), Ry is a monovalent organic group having 1 to 30 carbon atoms, which contains any one of an epoxy group, an oxetane group, an acryloyl group, and a methacryloyl group.
    Type: Application
    Filed: October 28, 2019
    Publication date: December 23, 2021
    Inventors: Yutaka SUGITA, Tomohiro KATAMURA, Junya NAKATSUJI, Kazuhiro YAMANAKA, Takashi MASUBUCHI
  • Patent number: 11141132
    Abstract: According to the present invention, a clear transmitted wave image of a boundary of tissues is generated in a short time. An ultrasonic imaging device of the present invention includes a transducer array in which a plurality of transducers transmitting and receiving an ultrasound wave are arrayed; a transmission unit which delivers an electric signal to at least one of the plurality of transducers, such that the delivered electric signal is converted into an ultrasound wave, and transmits the ultrasound wave to a target; a reception unit which receives a received signal that is an electric signal output by each of the plurality of transducers having received a reflected wave and a transmitted wave of the ultrasound wave of the target; and an image generation unit which individually generates a reflected wave image of a cross section of the target using a received signal of the reflected wave and a transmitted wave image of the cross section of the target using a received signal of the transmitted wave.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: October 12, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Wenjing Wu, Yushi Tsubota, Kenichi Kawabata, Takahide Terada, Kazuhiro Yamanaka
  • Patent number: 11141137
    Abstract: The invention is to provide an ultrasonic image with a clear tissue structure while reducing speckle noise of the ultrasonic image. An ultrasonic wave is transmitted from the transducer to the subject, and an echo generated in the subject is received. The first ultrasonic image and the second ultrasonic image are generated using a reception signal. The second ultrasonic image is an image smoother than the first ultrasonic image. The image processing unit calculates filter coefficients using pixel values of corresponding pixels of the first ultrasonic image and the second ultrasonic image, and generates an output image by processing one of the first ultrasonic image and the second ultrasonic image using the filter coefficients.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: October 12, 2021
    Assignee: HITACHI, LTD.
    Inventors: Kazuhiro Yamanaka, Kenichi Kawabata
  • Publication number: 20210312594
    Abstract: An ultrasonic imaging apparatus is capable of removing noise for each tissue from a received signal of a living tissue in which a plurality of tissues are intricately intertwined, and suppressing artifacts even at a tissue boundary. An evaluator receives one or more time-series ultrasonic signals obtained by receiving an ultrasonic wave from a subject by an ultrasonic probe after transmitting an ultrasonic wave, and generates a filter control signal for setting a characteristic value of a filter for removing noise contained in the ultrasonic signal, for a time-series direction of the ultrasonic signal. A filter processor removes the noise by processing the ultrasonic signal of the corresponding signal characteristic value by the filter having the characteristic value set based on the filter control signal. A smoothing processor that smooths distribution of the filter control signal is disposed between the evaluator and the filter processor.
    Type: Application
    Filed: March 30, 2021
    Publication date: October 7, 2021
    Inventors: Kazuhiro YAMANAKA, Teiichiro IKEDA, Nobuhiko FUJII, Misaki HIROSHIMA
  • Publication number: 20210275132
    Abstract: Provided is an ultrasonic CT device capable of shaping a measurement part such as a breast of a measurement target into a shape suitable for measurement and reducing burden on the measurement target. The ultrasonic CT device includes a tubular measurement container, and a transducer array configured to transmit ultrasonic waves to a measurement target inserted in the measurement container and receive ultrasonic waves from the measurement target. Gel is disposed in the measurement container, and a surface of the gel is inclose contact with at least a surface of the measurement target to which the ultrasonic waves are transmitted. The ultrasonic waves transmitted from the transducer array pass through the gel and are emitted to the measurement target from the surface in close contact with the measurement target.
    Type: Application
    Filed: December 4, 2020
    Publication date: September 9, 2021
    Inventors: Kenichi KAWABATA, Kazuhiro YAMANAKA, Atsurou SUZUKI, Yushi TSUBOTA, Takahide TERADA
  • Publication number: 20210228180
    Abstract: An object of the invention is to provide an ultrasonic CT device in which a reflected signal or the like from an object disposed close to transducers is received, and a reception signal thereof can be received by a receiver while transceivers whose number is smaller than the number of the transducers are used. The ultrasonic CT device includes: a transducer array in which a plurality of transducers are arranged; transceivers whose number is smaller than the number of the transducers; and a transmission transducer selector and a reception transducer selector disposed for each of the transceivers. While a transmitter included in the transceiver is selectively connected to any of the transducers in the transducer array by the transmission transducer selector, a receiver included in the transceiver is selectively connected to any of the transducers in the transducer array by the reception transducer selector.
    Type: Application
    Filed: May 18, 2020
    Publication date: July 29, 2021
    Inventors: Takahide TERADA, Yushi TSUBOTA, Atsurou SUZUKI, Kenichi KAWABATA, Kazuhiro YAMANAKA
  • Patent number: 11045168
    Abstract: An ultrasonic imaging device according to the present invention includes: a container provided with an opening for inserting a target region of a subject; and a transmission/reception unit that transmits ultrasound to the target region inserted into the container filled with a liquid and receives the ultrasound that penetrates the target region or is reflected from the target region. The container has a pressure reducing unit that holds the target region in the container by reducing a pressure in the container of which the opening is covered with the target region. According to the present invention, since it is possible to maintain a shape close to a predetermined shape when the target region of a breast or the like is inserted into a container filled with the liquid, it is possible to measure the target region with high accuracy by transmitting and receiving ultrasound.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 29, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Kawabata, Hideki Yoshikawa, Rei Asami, Takahide Terada, Kazuhiro Yamanaka, Yushi Tsubota, Wenjing Wu
  • Patent number: 10959706
    Abstract: Provided herein is a phantom capable of mimicking both a dense breast and a fatty breast. A phantom for ultrasound measurement includes: a first member that mimics an object of interest for measurement; and a second member having provided therein the first member. The second member has the property to decrease its sound speed with a temperature increase brought by external temperature control. The sound speed of the second member at a predetermined temperature is equal to the sound speed of a third member surrounding the second member. The first member and the second member are immiscible with each other.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: March 30, 2021
    Assignee: HITACHI, LTD.
    Inventors: Atsuro Suzuki, Kenichi Kawabata, Takahide Terada, Yushi Tsubota, Wenjing Wu, Kazuhiro Yamanaka
  • Publication number: 20210082690
    Abstract: Provided is a silicon-containing layer forming composition for forming a silicon-containing layer which exhibits an anti-reflective function during exposure in a multilayer resist process and, during dry etching, shows a high etching rate against a plasma of fluorine-based gas and a low etching rate against a plasma of oxygen-based gas. The silicon-containing layer forming composition includes a polysiloxane compound having a structural unit of the formula and a solvent. [(R1)bR2mSiOn/2] In the formula, R1 is a group represented by the following formula: (where a is an integer of 1 to 5; and a wavy line means that a line which the wavy line intersects is a bond); R2 is each independently a hydrogen atom, a C1-C3 alkyl group, a phenyl group, a hydroxy group, a C1-C3 alkoxy group or a C1-C3 fluoroalkyl group; b is an integer of 1 to 3; m is an integer of 0 to 2; n is an integer of 1 to 3; and a relationship of b+m+n=4 is satisfied.
    Type: Application
    Filed: February 21, 2019
    Publication date: March 18, 2021
    Inventors: Junya NAKATSUJI, Kazuhiro YAMANAKA
  • Patent number: 10945684
    Abstract: The ultrasonic CT device includes: a first water tank configured such that an object is inserted therein, the first water tank being filled with a medium through which an ultrasonic wave passes; a ring array that irradiates an ultrasonic wave to the object and detects an ultrasonic wave reflected by the object while moving on an outer surface of the first water tank; and a signal processing unit that generates a tomographic image of the object based on a signal obtained by the ring array. The ultrasonic CT device further includes: a second water tank that houses the first water tank and the ring array; and a lid having a hole or a notch which is provided on a side of the object in the second water tank and which drains the medium.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: March 16, 2021
    Assignee: HITACHI, LTD.
    Inventors: Yushi Tsubota, Masakazu Sugaya, Hideo Kashima, Takahide Terada, Kenichi Kawabata, Wenjing Wu, Kazuhiro Yamanaka, Ai Masuda