Patents by Inventor Satoru Tezuka

Satoru Tezuka 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: 10413276
    Abstract: An ultrasonic probe includes an ultrasonic transducer array and a multilayer body for extracting an electric wiring from each electrode. Transducers are classified into at least a first group and a second group. The multilayer body includes a first FPC layer on which the array is stacked and a second FPC layer on which the first FPC layer is stacked. The first FPC layer and the second FPC layer include upper surface connection pads and lower surface electrode pads which maintain a uniform level at positions spatially corresponding to the respective transducers. FPC layers constituting an FPC multilayer body are bonded to each other to be integrally formed in a region corresponding to the width of the array. On the other hand, the respective FPC layers are not bonded to each other and separated from each other outside the region corresponding to the width of the array.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: September 17, 2019
    Assignee: Canon Medical Svstems Corporation
    Inventors: Yasuhiro Ona, Hiroyuki Shikata, Satoru Tezuka, Satoru Asagiri, Michiko Oishi
  • Patent number: 10335830
    Abstract: According to one embodiment, an ultrasonic probe includes piezoelectric elements, a flexible printed circuit, and one of an air gap layer and a resin layer. The piezoelectric elements transmit and receive ultrasonic waves. The flexible printed circuit located on a rear surface side of the piezoelectric elements and electrically connected to the piezoelectric elements. The air gap layer locates on a rear surface side of the flexible printed circuit and has air gaps. The resin layer is obtained by filling the air gap layer with a resin and locates on the rear surface side of the flexible printed circuit.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: July 2, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hiroyuki Shikata, Takeshi Miyagi, Kengo Okada, Fumiyasu Sakaguchi, Satoru Tezuka, Takashi Takeuchi, Yasuhiro Ona
  • Patent number: 10207212
    Abstract: Provided is a filter material which can enhance the particle holding capacity of a filter while keeping the particle capture efficiency thereof and which thus ensures a prolonged filter life. The present invention pertains to a filter material comprising a spun lace nonwoven fabric which contains a thermoplastic synthetic filament nonwoven fabric as the intermediate layer.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: February 19, 2019
    Assignee: ASAHI KASEI FIBERS CORPORATION
    Inventors: Hideaki Fujii, Yoshiyuki Tadokoro, Satoru Tezuka, Kiyoshi Miyaji, Tatsuya Ogawa, Saori Tanaka
  • Publication number: 20180008232
    Abstract: An ultrasonic diagnosis apparatus includes a position detector, and control circuitry. The position detector detects a position in a three-dimensional space of one of an ultrasonic image and an ultrasonic probe. The control circuitry uses a vivisection view defined in a three-dimensional space. The control circuitry associates a structure related to a subject included in the ultrasonic image with a structure included in the vivisection view using a position and orientation in a first three-dimensional coordinate system of the structure related to the subject included in the ultrasonic image and a position and orientation in a second three-dimensional coordinate system of the structure included in the vivisection view.
    Type: Application
    Filed: July 7, 2017
    Publication date: January 11, 2018
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Yoshitaka MINE, Yutaka KOBAYASHI, Jiro HIGUCHI, Atsushi NAKAI, Satoru TEZUKA, Kazuo TEZUKA, Cong YAO
  • Patent number: 9606227
    Abstract: A spatial position x? of each ultrasonic transducer is accurately obtained for each probe in consideration of each edge transducer gap, and a delay time T(x?(n)) and a weighting coefficient W(x?(n)) are calculated on the basis of the position of each ultrasonic transducer. A control unit executes ultrasonic transmission/reception by using the calculated delay times and weighting coefficients to realize a suitable acoustic field with high deflection angle accuracy, small sidelobes, and the like as compared with the prior art.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: March 28, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Tatsuro Baba, Takuya Sasaki, Satoru Tezuka, Yasuo Miyajima
  • Publication number: 20160375466
    Abstract: According to one embodiment, an ultrasonic probe includes piezoelectric elements, a flexible printed circuit, and one of an air gap layer and a resin layer. The piezoelectric elements transmit and receive ultrasonic waves. The flexible printed circuit located on a rear surface side of the piezoelectric elements and electrically connected to the piezoelectric elements. The air gap layer locates on a rear surface side of the flexible printed circuit and has air gaps. The resin layer is obtained by filling the air gap layer with a resin and locates on the rear surface side of the flexible printed circuit.
    Type: Application
    Filed: April 18, 2016
    Publication date: December 29, 2016
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Hiroyuki SHIKATA, Takeshi MIYAGI, Kengo OKADA, Fumiyasu SAKAGUCHI, Satoru TEZUKA, Takashi TAKEUCHI, Yasuhiro ONA
  • Publication number: 20160007964
    Abstract: An ultrasonic probe includes an ultrasonic transducer array and a multilayer body for extracting an electric wiring from each electrode. Transducers are classified into at least a first group and a second group. The multilayer body includes a first FPC layer on which the array is stacked and a second FPC layer on which the first FPC layer is stacked. The first FPC layer and the second FPC layer include upper surface connection pads and lower surface electrode pads which maintain a uniform level at positions spatially corresponding to the respective transducers. FPC layers constituting an FPC multilayer body are bonded to each other to be integrally formed in a region corresponding to the width of the array. On the other hand, the respective FPC layers are not bonded to each other and separated from each other outside the region corresponding to the width of the array.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Yasuhiro ONA, Hiroyuki SHIKATA, Satoru TEZUKA, Satoru ASAGIRI, Michiko OISHI
  • Publication number: 20150320387
    Abstract: According to one embodiment, a medical acoustic coupler detachably is provided on an ultrasonic wave radiation surface of an ultrasonic probe. The medical acoustic coupler includes an elastic body. The elastic body has an adhesive force. The elastic body adheres to the ultrasonic wave radiation surface with the adhesive force. The elastic body includes a middle portion, end portions, and groove portions. The middle portion has a size corresponding to the ultrasonic wave radiation surface. The end portions adheres to two opposite side surfaces of the ultrasonic probe. The groove portions are provided between each of the end portions and the middle portion. The groove portions are thinner than the middle portion and the end portions.
    Type: Application
    Filed: July 22, 2015
    Publication date: November 12, 2015
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Takashi KUBOTA, Takashi TAKEUCHI, Koichi SHIBAMOTO, Satoru TEZUKA
  • Patent number: 9168026
    Abstract: According to one embodiment, an ultrasonic probe has a laminated structure of an acoustic matching layer, transducer layer with arrayed transducers, and backing layer. A transmission/reception unit transmits and receives ultrasonic waves to and from an object via the transducers. A control unit controls the transmission/reception unit to synchronize ultrasonic-wave generation by a specific transducer of the transducers with ultrasonic-wave reception by a different transducer. A phase shift detection unit detects a phase shift between an output signal from the transmission/reception unit and a reference signal, the output signal corresponding to synchronization between the ultrasonic-wave generation and the ultrasonic-wave reception.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: October 27, 2015
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Koichi Shibamoto, Takashi Takeuchi, Satoru Tezuka
  • Patent number: 9172024
    Abstract: A backing material is provided on the back face side of a piezoelectric transducer, with a first width substantially equal to the piezoelectric transducer widthwise and perpendicular to the radiation direction. A front face of a layer located on the front face side with regard to a wiring pattern has a width substantially equal to the first width. Moreover, the back face of this layer has a second width shorter than the first width. A space is provided between this layer and the backing material due to the difference between the first width and the second width of this layer, and a covering member covering the wiring pattern covers the wiring pattern extending at least from the folded section of the flexible substrate into the space.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 27, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Kengo Okada, Hiroyuki Shikata, Minoru Aoki, Satoru Tezuka, Yasuhisa Makita
  • Patent number: 8872412
    Abstract: An ultrasound transducer according to an embodiment has two-dimensionally arranged ultrasound vibrators. A wiring board block is a laminate of wiring boards which are arranged along the row direction in the arrangement. The wiring board has a first surface facing a rear surface of the ultrasound vibrators and a second surface on its opposite side. First connection parts are provided on the first surface corresponding to the arrangement, and are conducted with back electrodes of the vibrators. Second connection parts are provided on the second surface, and are provided corresponding to the first connection parts. Connecting leads establish conductivity between the first and second connection parts through a fourth surface which is perpendicular to the second and third surfaces. Electronic circuits are connected to the second surface of the wiring board block, and are conducted with the second connection parts.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: October 28, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Satoru Tezuka, Yasuhisa Makita, Yutaka Oonuki
  • Publication number: 20140231337
    Abstract: Provided is a filter material which can enhance the particle holding capacity of a filter while keeping the particle capture efficiency thereof and which thus ensures a prolonged filter life. The present invention pertains to a filter material comprising a spun lace nonwoven fabric which contains a thermoplastic synthetic filament nonwoven fabric as the intermediate layer.
    Type: Application
    Filed: September 9, 2011
    Publication date: August 21, 2014
    Inventors: Hideaki Fujii, Yoshiyuki Tadokoro, Satoru Tezuka, Kiyoshi Miyaji, Tatsuya Ogawa, Saori Tanaka
  • Publication number: 20130241355
    Abstract: A backing material is provided on the back face side of a piezoelectric transducer, with a first width substantially equal to the piezoelectric transducer widthwise and perpendicular to the radiation direction. A front face of a layer located on the front face side with regard to a wiring pattern has a width substantially equal to the first width. Moreover, the back face of this layer has a second width shorter than the first width. A space is provided between this layer and the backing material due to the difference between the first width and the second width of this layer, and a covering member covering the wiring pattern covers the wiring pattern extending at least from the folded section of the flexible substrate into the space.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Kengo OKADA, Hiroyuki Shikata, Minoru Aoki, Satoru Tezuka, Yasuhisa Makita
  • Publication number: 20130190625
    Abstract: According to one embodiment, an ultrasonic probe has a laminated structure of an acoustic matching layer, transducer layer with arrayed transducers, and backing layer. A transmission/reception unit transmits and receives ultrasonic waves to and from an object via the transducers. A control unit controls the transmission/reception unit to synchronize ultrasonic-wave generation by a specific transducer of the transducers with ultrasonic-wave reception by a different transducer. A phase shift detection unit detects a phase shift between an output signal from the transmission/reception unit and a reference signal, the output signal corresponding to synchronization between the ultrasonic-wave generation and the ultrasonic-wave reception.
    Type: Application
    Filed: December 6, 2012
    Publication date: July 25, 2013
    Inventors: Koichi SHIBAMOTO, Takashi Takeuchi, Satoru Tezuka
  • Patent number: 8410666
    Abstract: According to one embodiment, an ultrasonic probe includes a plurality of piezoelectric elements, a first electrode, a plurality of second electrodes, a plurality of stacked flexible printed circuit boards, and a plurality of connection portions. The plurality of piezoelectric elements are arrayed. The first electrode is provided on the emitting surface side of the plurality of piezoelectric elements. The plurality of second electrodes are respectively provided on the rear surface sides of the plurality of piezoelectric elements. The plurality of stacked flexible printed circuit boards respectively include a plurality of terminals. The plurality of connection portions electrically connect the second electrodes to the terminals. At least one of the flexible printed circuit boards extends longer than the flexible printed circuit board serving as an upper layer.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: April 2, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Hiroyuki Shikata, Satoru Tezuka, Yasuhiro Ona, Takashi Kubota, Yasuhisa Makita
  • Publication number: 20110295124
    Abstract: According to one embodiment, an ultrasonic probe includes a plurality of piezoelectric elements, a first electrode, a plurality of second electrodes, a plurality of stacked flexible printed circuit boards, and a plurality of connection portions. The plurality of piezoelectric elements are arrayed. The first electrode is provided on the emitting surface side of the plurality of piezoelectric elements. The plurality of second electrodes are respectively provided on the rear surface sides of the plurality of piezoelectric elements. The plurality of stacked flexible printed circuit boards respectively include a plurality of terminals. The plurality of connection portions electrically connect the second electrodes to the terminals. At least one of the flexible printed circuit boards extends longer than the flexible printed circuit board serving as an upper layer.
    Type: Application
    Filed: May 19, 2011
    Publication date: December 1, 2011
    Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroyuki SHIKATA, Satoru TEZUKA, Yasuhiro ONA, Takashi KUBOTA, Yasuhisa MAKITA
  • Publication number: 20110248603
    Abstract: An ultrasound transducer according to an embodiment has two-dimensionally arranged ultrasound vibrators. A wiring board block is a laminate of wiring boards which are arranged along the row direction in the arrangement. The wiring board has a first surface facing a rear surface of the ultrasound vibrators and a second surface on its opposite side. First connection parts are provided on the first surface corresponding to the arrangement, and are conducted with back electrodes of the vibrators. Second connection parts are provided on the second surface, and are provided corresponding to the first connection parts. Connecting leads establish conductivity between the first and second connection parts through a fourth surface which is perpendicular to the second and third surfaces. Electronic circuits are connected to the second surface of the wiring board block, and are conducted with the second connection parts.
    Type: Application
    Filed: March 23, 2011
    Publication date: October 13, 2011
    Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, Kabushiki Kaisha Toshiba
    Inventors: Satoru TEZUKA, Yasuhisa Makita, Yutaka Oonuki
  • Patent number: 7654961
    Abstract: An ultrasonic probe includes ultrasonic oscillating elements arranged in a two-dimensional array shape, connection leads connected to the ultrasonic oscillating elements, and at least one board to connect the ultrasonic oscillating elements and integrated circuits. The board includes a first part having through-holes which are electrically connected to the connection leads when the connection leads are inserted, and second parts having bendable portions configured to connect the first part and the integrated circuits.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: February 2, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Satoru Tezuka
  • Patent number: 7409553
    Abstract: A public key certificate generation method includes the steps of: sending a certificate issuing request including a registration contents of a public key certificate and an information content guaranteed by the registration authority, to the issuing authority in a registration authority and generating a public key certificate including the registration contents described in the certificate issuing request the information guaranteed by the registration authority issuing contents issued by the issuing authority, and a signature to the issuing contents in the issuing authority.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: August 5, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Yoko Kumagai, Takahiro Fujishiro, Satoru Tezuka, Takanobu Oikawa, Izumi Anayama
  • Patent number: 7409551
    Abstract: A time period which is expended since a request for the authentication of the validity of a public key certificate till the authentication of the validity, is shortened. A certificate validity authentication center VC periodically searches for and verifies paths which extend from a bridge certification authority CAbridge to individual terminal admitting certification authorities CA, and it registers the paths whose verifications have held good, in a path database in association with the respective terminal admitting certification authorities CA.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: August 5, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Takahiro Fujishiro, Satoru Tezuka, Yoko Kumagai, Tomoharu Morio, Yutaka Miyazaki