Patents by Inventor Kenichi Kawabata

Kenichi Kawabata 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: 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
  • 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
  • Publication number: 20210030393
    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: Application
    Filed: March 12, 2020
    Publication date: February 4, 2021
    Inventors: Yushi TSUBOTA, Kenichi KAWABATA, Takahide TERADA, Atsurou SUZUKI, Wenjing WU, Kazuhiro YAMANAKA
  • Publication number: 20210022705
    Abstract: To provide an ultrasonic CT apparatus that can change an inclination of a side surface of a breast such that an ultrasonic wave is incident on a surface of an entire circumference of the breast at an angle close to perpendicular, and that has less psychological burden on a subject. A container provided with an opening to which the breast is inserted is disposed below a bed provided with a through hole to which the breast of the subject is inserted. In the container, a member that propagates or transmits the ultrasonic wave is disposed, and the member is relatively pressed against a side surface or a nipple portion of the breast such that an inclination of the side surface of the breast is close to perpendicular. A transducer array emits the ultrasonic wave around the breast with the inclination of the side surface being close to perpendicular.
    Type: Application
    Filed: March 12, 2020
    Publication date: January 28, 2021
    Inventors: Atsuro SUZUKI, Yushi TSUBOTA, Takahide TERADA, Kenichi KAWABATA, Kazuhiro YAMANAKA, Wenjing WU
  • Publication number: 20210027925
    Abstract: Disclosed herein is a composite magnetic powder that includes an iron-containing magnetic powder, and an insulating layer comprising a silicon oxide formed on a surface of the iron-containing magnetic powder. An O/Si ratio of the silicon oxide constituting the insulating layer is 2.1 or more and 2.2 or less.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 28, 2021
    Applicant: TDK CORPORATION
    Inventors: Masataka KITAGAMI, Kenichi Kawabata
  • Publication number: 20210027923
    Abstract: Disclosed herein is a composite magnetic powder that includes an iron-containing magnetic powder and an insulating layer comprising a silicon oxide formed on a surface of the iron-containing magnetic powder. The insulating layer contains pores, and an area ratio of the pores in a cross section of the insulating layer is 5% or less.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 28, 2021
    Applicant: TDK CORPORATION
    Inventors: Masataka KITAGAMI, Kenichi KAWABATA
  • Publication number: 20210000985
    Abstract: To provide an acoustic coupler capable of achieving both acoustic characteristics and mechanical characteristics required for ultrasonic imaging. The invention provides a hydrogel preparation method in which a plurality of kinds of polymerizations are performed under reduced pressure, and a gel for an acoustic coupler obtained by the preparation method. For example, a gel for an acoustic coupler includes polyacrylamide having a matrix structure and alginic acid, and the alginic acid is retained in a matrix of the matrix structure of the polyacrylamide.
    Type: Application
    Filed: June 10, 2020
    Publication date: January 7, 2021
    Inventors: Kenichi KAWABATA, Hideki YOSHIKAWA
  • Publication number: 20200352061
    Abstract: A method of forming a metal magnetic film includes forming the metal magnetic film by a plating process, wherein the metal magnetic film comprises a permalloy and carbon atoms and a content of the carbon atoms is 0.3 to 3.0 at % based on a total amount of the carbon atoms and metal elements.
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Applicant: TDK CORPORATION
    Inventors: Takashi YAMADA, Miyuki YANAGIDA, Atsushi SATO, Kenichi KAWABATA
  • Patent number: 10799217
    Abstract: A sinogram is corrected in a form that can use a straight-ray type reconstruction method while considering trajectory of refracted waves. Specifically, based on the sequentially estimated path information of the virtual waves, an arrival time difference sinogram is corrected by a difference or a ratio between “shortest arrival time of wave” and “arrival time of the wave through the shortest path” to each detection element.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 13, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Yushi Tsubota, Kenichi Kawabata, Atsurou Suzuki, Takahide Terada, Wenjing Wu, Kazuhiro Yamanaka
  • Publication number: 20200143979
    Abstract: In a coil component, a shield layer is provided after the unevenness of the surface of an element body is smoothened by the surface being covered with an insulating layer. A Cu layer of the shield layer is provided on a smooth surface, and thus a thickness variation can be suppressed and the Cu layer can be formed with a substantially uniform thickness. In the coil component, a point where the shield layer is thin or a point lacking the shield layer is unlikely to be generated and a functional degradation of the shield layer is effectively suppressed.
    Type: Application
    Filed: October 24, 2019
    Publication date: May 7, 2020
    Applicant: TDK CORPORATION
    Inventors: Hitoshi OHKUBO, Masazumi ARATA, Kenichi KAWABATA, Atsushi SATO
  • Patent number: 10615089
    Abstract: Disclosed herein is a composite magnetic sealing material includes a resin material and a filler blended in the resin material in a blended ratio of 30 vol. % or more to 85 vol. % or less. The filler includes a magnetic filler containing Fe and 32 wt. % or more and 39 wt. % or less of a metal material contained mainly of Ni, thereby a thermal expansion coefficient of the composite magnetic sealing material is 15 ppm/° C. or less.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: April 7, 2020
    Assignee: TDK CORPORATION
    Inventor: Kenichi Kawabata
  • Publication number: 20200107479
    Abstract: A metal magnetic film includes a permalloy and a carbon atom, wherein a content of the carbon atom is 0.3 to 3.0 at % based on a total amount of the carbon atom and metal elements.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 2, 2020
    Applicant: TDK CORPORATION
    Inventors: Takashi YAMADA, Miyuki YANAGIDA, Atsushi SATO, Kenichi KAWABATA
  • Publication number: 20200008784
    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: Application
    Filed: April 11, 2019
    Publication date: January 9, 2020
    Inventors: Kazuhiro YAMANAKA, Kenichi KAWABATA
  • Patent number: 10448546
    Abstract: Disclosed is a noise suppression sheet 1 including a resin layer 2, a non-magnetic metal layer 3, and a metal magnetic layer 4 in this order.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: October 15, 2019
    Assignee: TDK CORPORATION
    Inventors: Takashi Yamada, Miyuki Yanagida, Atsushi Sato, Kenichi Kawabata
  • Publication number: 20190290223
    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: Application
    Filed: February 11, 2019
    Publication date: September 26, 2019
    Inventors: Yushi TSUBOTA, Masakazu SUGAYA, Hideo KASHIMA, Takahide TERADA, Kenichi KAWABATA, Wenjing WU, Kazuhiro YAMANAKA, Ai MASUDA
  • Patent number: 10403582
    Abstract: Disclosed herein is an electronic circuit package includes a substrate having a power supply pattern, an electronic component mounted on a surface of the substrate, and a composite molding member having conductivity that covers the surface of the substrate so as to embed the electronic component and that is connected to the power supply pattern. The composite molding member includes a resin material and a first filler blended in the resin material and containing 32 to 39 wt. % of a metal material composed mainly of Ni in Fe.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: September 3, 2019
    Assignee: TDK CORPORATION
    Inventor: Kenichi Kawabata
  • Patent number: 10373917
    Abstract: Disclosed herein is an electronic circuit package that includes a substrate having a power supply pattern, an electronic component mounted on a surface of the substrate; and a molding member having conductivity that covers the surface of the substrate so as to embed the electronic component therein. The power supply pattern includes a first power supply pattern exposed to the surface of the substrate, and the molding member contacts the first power supply pattern.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 6, 2019
    Assignee: TDK CORPORATION
    Inventor: Kenichi Kawabata
  • Publication number: 20190223833
    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: Application
    Filed: January 10, 2019
    Publication date: July 25, 2019
    Applicant: HITACHI, LTD.
    Inventors: Kazuhiro YAMANAKA, Kenichi KAWABATA, Takahide TERADA, Atsurou SUZUKI, Yushi TSUBOTA, Wenjing WU
  • Patent number: D884899
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: May 19, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Ai Masuda, Jiwon Hong, Akira Kojima, Takashi Yamamoto, Kenichi Kawabata, Takahide Terada, Wenjing Wu, Yushi Tsubota