Patents by Inventor Kenichi Tezuka

Kenichi 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).

  • Publication number: 20240332822
    Abstract: An antenna device includes: a dielectric layer; radiation conductors provided to the dielectric layer; and a plurality of columnar conductors disposed around the radiation conductor in plan view seen from a normal direction of the radiation conductor, and peripheral conductors are disposed on an outer side of the plurality of columnar conductors in plan view seen from the normal direction.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    Applicant: TDK Corporation
    Inventors: Kenichi TEZUKA, Yasuharu MIYAUCHI, Yousuke FUTAMATA, Misaki TABATA
  • Publication number: 20240332823
    Abstract: An antenna device includes: a dielectric layer; radiation conductors and a ground conductor disposed at the dielectric layer; and side surface conductors in which a plurality of conductor patterns are laminated, the side surface conductors are disposed on an outer side of the ground conductors in a first direction in plan view seen from a normal direction of the radiation conductors, and the dimensions of the side surface conductors in a second direction perpendicular to the first direction are larger than the dimensions in the second direction of the radiation conductors.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    Applicant: TDK Corporation
    Inventors: Kenichi TEZUKA, Yasuharu Miyauchi, Yousuke Futamata, Misaki Tabata
  • Publication number: 20240235033
    Abstract: An antenna module is an antenna module including at least a first radiation electrode, and a first power feeding electrode coupled with the first radiation electrode, and includes: a first dielectric layer including the first power feeding electrode; and a second dielectric layer disposed at one side of the first dielectric layer in a thickness direction of the first power feeding electrode, and a fracture toughness value of the second dielectric layer is larger than a fracture toughness value of the first dielectric layer.
    Type: Application
    Filed: October 24, 2023
    Publication date: July 11, 2024
    Applicant: TDK CORPORATION
    Inventors: Kenichi TEZUKA, Aozora KAWASAKI, Shin TAKANE, Yousuke FUTAMATA, Yasufumi FUKASAWA
  • Publication number: 20240136719
    Abstract: An antenna module is an antenna module including at least a first radiation electrode, and a first power feeding electrode coupled with the first radiation electrode, and includes: a first dielectric layer including the first power feeding electrode; and a second dielectric layer disposed at one side of the first dielectric layer in a thickness direction of the first power feeding electrode, and a fracture toughness value of the second dielectric layer is larger than a fracture toughness value of the first dielectric layer.
    Type: Application
    Filed: October 23, 2023
    Publication date: April 25, 2024
    Applicant: TDK CORPORATION
    Inventors: Kenichi TEZUKA, Aozora KAWASAKI, Shin TAKANE, Yousuke FUTAMATA, Yasufumi FUKASAWA
  • Publication number: 20230307810
    Abstract: A filter includes a first port, a second port, a path, a circuit part, and at least one cavity resonator. The path connects the first port and the second port. The circuit part is provided in the path. Each of the at least one cavity resonator is coupled with the path from an outside of the path in a circuit configuration. The first cavity resonator is coupled with the path between the first port and the circuit part. The second cavity resonator is coupled with the path between the second port and the circuit part.
    Type: Application
    Filed: March 24, 2023
    Publication date: September 28, 2023
    Applicant: TDK CORPORATION
    Inventors: Yuta ASHIDA, Masahiro TATEMATSU, Shuhei SAWAGUCHI, Kenichi TEZUKA, Aozora KAWASAKI, Tetsuzo GOTO, Tomoyuki GOI
  • Patent number: 11688946
    Abstract: An antenna device according to the present disclosure includes two wiring layers and an antenna layer. One of the two wiring layers is divided in the x-direction by a first slit extending in the y-direction, and the antenna layer is divided in the x-direction into first and second antenna areas by a second slit extending in the y-direction. The first and second slits overlap each other in the z-direction. One of the first and second slits is larger in width than the other one thereof. The antenna layer includes an antenna conductor formed in the first antenna area and another antenna conductor formed in the second antenna area.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: June 27, 2023
    Assignee: TDK CORPORATION
    Inventors: Hisashi Kobuke, Yasumasa Harihara, Kenichi Tezuka, Tomoyuki Goi
  • Publication number: 20220085508
    Abstract: An antenna device according to the present disclosure includes two wiring layers and an antenna layer. One of the two wiring layers is divided in the x-direction by a first slit extending in the y-direction, and the antenna layer is divided in the x-direction into first and second antenna areas by a second slit extending in the y-direction. The first and second slits overlap each other in the z-direction. One of the first and second slits is larger in width than the other one thereof. The antenna layer includes an antenna conductor formed in the first antenna area and another antenna conductor formed in the second antenna area.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 17, 2022
    Inventors: Hisashi KOBUKE, Yasumasa HARIHARA, Kenichi TEZUKA, Tomoyuki GOI
  • Patent number: 9890360
    Abstract: A method that includes bringing a nuclear reprogramming substance (DLX4 gene, OCT3/4 gene, and SOX2 gene) into contact with a cell and thereby producing iPS cells.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: February 13, 2018
    Assignees: GIFU UNIVERSITY, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Kenichi Tezuka, Naritaka Tamaoki, Kazuki Iida, Tomoko Kawaguchi, Hitomi Aoki, Takahiro Kunisada, Toshiyuki Shibata, Naoki Goshima
  • Publication number: 20160296669
    Abstract: An object of the present invention is to provide a method for efficiently and reproducibly producing a graft material having a high recovery effect on dysfunction caused by nerve damage. The present invention provides a method for producing a graft material for treating nerve damage, including a step of culturing a dental pulp stem cell in a medium substantially containing no growth factors except FGF2, and others.
    Type: Application
    Filed: May 14, 2014
    Publication date: October 13, 2016
    Inventors: Kenichi TEZUKA, Tomoko KAWAGUCHI, Takahiro KUNISADA, Toshiyuki SHIBATA, Hidefumi FUKUMITSU, Shoei FURUKAWA
  • Publication number: 20160208218
    Abstract: A method that includes bringing a nuclear reprogramming substance (DLX4 gene, OCT3/4 gene, and SOX2 gene) into contact with a cell and thereby producing iPS cells.
    Type: Application
    Filed: August 28, 2014
    Publication date: July 21, 2016
    Applicants: GIFU UNIVERSITY, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Kenichi TEZUKA, Naritaka TAMAOKI, Kazuki IIDA, Tomoko KAWAGUCHI, Hitomi AOKI, Takahiro KUNISADA, Toshiyuki SHIBATA, Naoki GOSHIMA
  • Publication number: 20110201110
    Abstract: The present invention provides a method of producing induced pluripotent stem (iPS) cells, comprising bringing a nuclear reprogramming substance into contact with dental pulp stem cells. By using dental pulp stem cells as a source of somatic cells, the efficiency of establishment of human iPS cells by transfer of 3 or 4 factors can be improved dramatically. Additionally, dental pulp stem cells are easily available because they can be isolated and prepared from extracted wisdom teeth and teeth extracted because of periodontal disease and the like, so that they can be used widely as a source of somatic cells for iPS cell banks.
    Type: Application
    Filed: October 2, 2008
    Publication date: August 18, 2011
    Applicants: GIFU UNIVERSITY, KYOTO UNIVERSITY
    Inventors: Kenichi Tezuka, Toshiyuki Shibata, Takahiro Kunisada, Naritaka Tamaoki, Tomoko Takeda, Shinya Yamanaka, Kazutoshi Takahashi
  • Publication number: 20100226469
    Abstract: A technology for accurately measuring with the use of an ultrasonic flowmeter the flow rate through a nuclear reactor water supply piping interposed between a nuclear reactor and a nuclear reactor water supply pump. In a reactor coolant cleaning system (30), piping to be joined with a reactor water supply system (10) is branched, thereby forming an auxiliary path (A) to be similarly joined with the reactor water supply system (10). The auxiliary path (A) is provided with a restriction part (C) having an inside diameter narrower than that of other parts of the auxiliary path (A) to complete a nuclear reactor water supply piping structure. Through this structure, cavitation bubbles are generated from the restriction part (C). An ultrasonic transducer (40) is disposed between the nuclear reactor (1) and the auxiliary path (A) in the piping for composing the reactor water supply system (10), thereby conducting measurement of the flow rate of fluid within the piping.
    Type: Application
    Filed: December 25, 2006
    Publication date: September 9, 2010
    Applicant: THE TOKYO ELECTRIC POWER COMPANY, INCORPORATED
    Inventors: Michitsugu Mori, Kenichi Tezuka, Takeshi Suzuki
  • Publication number: 20100218618
    Abstract: Provided is a technique for performing a precise flow rate measurement of a large-bore pipeline without causing any aliasing. Ultrasonic pulses are transmitted at a first repetition frequency and at a second repetition frequency different from the first one, and a fluid velocity distribution measuring means measures a first flow velocity distribution for the first repetition frequency and a second flow velocity distribution for the second repetition frequency.
    Type: Application
    Filed: January 18, 2007
    Publication date: September 2, 2010
    Applicant: THE TOKYO ELECTRIC POWER CO., INC.
    Inventors: Michitsugu Mori, Kenichi Tezuka, Takeshi Suzuki
  • Patent number: 7509878
    Abstract: Disclosed is an ultrasonic Doppler flow measurment system that achieves flow measurement regardless of the temperature of a fluid. A temperature sensor 7 is combined with a pipe 1 to measure the temperature of a fluid 2. A controller 9 calculates a frequency that will cause cavitation when an ultrasonic transducer 4 exerts an ultrasonic vibration on the fluid 2 on the basis of a temperature measured by the temperature sensor 7 and controls a sinusoidal oscillator 6.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: March 31, 2009
    Assignees: Kabushiki Kaisha Toshiba, Tokyo Electric Power Co. Inc.
    Inventors: Michio Sato, Tadashi Narabayashi, Michitsugu Mori, Kenichi Tezuka, Hideaki Tezuka
  • Patent number: 7415893
    Abstract: A bubble generator to bring out performance of a Doppler ultrasonic flowmeter to the maximum extent is provided. The bubble generator is provided with a bubble generation member generating bubbles suitable for a predetermined frequency of an ultrasonic pulse emitted into a fluid to be measured and feeding the bubbles into the fluid pipe, and a uniform dispersion member dispersing the bubbles fed uniformly in the pipe, the bubble generator is installed on an upstream side of the fluid pipe with respect to an ultrasonic transducer. The bubble generation member has a Venturi tube, and the uniform dispersion member has a negative pressure generating device, in which the fluid to be measured drawn out by the uniform dispersion member from inside the fluid pipe is returned into the fluid pipe together with the bubbles fed into the fluid pipe via the Venturi tube.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: August 26, 2008
    Assignees: The Tokyo Electric Power Company, Incorporated
    Inventors: Yasushi Takeda, Michitsugu Mori, Kenichi Tezuka, Hideaki Tezuka
  • Patent number: 7308533
    Abstract: In an additional writing format optical disk library unit or the like, the processing for automatically reorganizing a volume is carried out effectively so as to intend to reuse media. Whether the number of residual blank media surfaces in a volume is small is judged. If the number is small, media surfaces each having a low data valid rate are extracted from the volume. Valid data on the extracted media surfaces is written and added to a medium surface which is currently set as a writing target, so that data relocation is carried out. Media surfaces occupied only by invalid areas are deregistered from the volume. Further, the media surfaces deregistered from the volume are formatted. The formatted media surfaces are re-registered into the volume.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: December 11, 2007
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Kenichi Tezuka, Junichi Takahashi, Takuya Mizokami
  • Patent number: 7258220
    Abstract: A token purchasing device that can automatically change the number of tokens purchased for a given price based on time, date, and day of the week information. The token purchasing device includes a banknote accepting unit for accepting a banknote and outputting a banknote value signal based on the denomination of the accepted banknote, a clock unit for outputting the current time and date information, a control unit for computing the number of tokens for dispensing, and a token dispensing unit. The control unit is configured to store a predetermined set of days or a range of times from a start time to an end time defining a special purchasing mode. The control unit can automatically change the number of tokens purchased when the current time and date is within the programmed parameters for the special purchasing mode.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: August 21, 2007
    Assignee: Asahi Seiko Kabushiki Kaisha
    Inventor: Kenichi Tezuka
  • Publication number: 20070161901
    Abstract: A bubble generator to bring out performance of a Doppler ultrasonic flowmeter to the maximum extent is provided. The bubble generator is provided with a bubble generation member generating bubbles suitable for a predetermined frequency of an ultrasonic pulse emitted into a fluid to be measured and feeding the bubbles into the fluid pipe, and a uniform dispersion member dispersing the bubbles fed uniformly in the pipe, the bubble generator is installed on an upstream side of the fluid pipe with respect to an ultrasonic transducer. The bubble generation member has a Venturi tube, and the uniform dispersion member has a negative pressure generating device, in which the fluid to be measured drawn out by the uniform dispersion member from inside the fluid pipe is returned into the fluid pipe together with the bubbles fed into the fluid pipe via the Venturi tube.
    Type: Application
    Filed: May 26, 2004
    Publication date: July 12, 2007
    Applicants: THE TOKYO ELECTRIC POWER COMPANY, INCORPORATED
    Inventors: Yasushi Takeda, Michitsugu Mori, Kenichi Tezuka, Hideaki Tezuka
  • Publication number: 20070151362
    Abstract: In order to provide a technology in an ultrasonic flowmeter to efficiently penetrate through both of a wedge and a fluid pipe surface so as to contribute to more accurate measurement of a flow rate. An ultrasonic flowmeter includes an ultrasonic transmitter for launching ultrasonic pulses of a predetermined frequency into the fluid to be measured in fluid pipe from an ultrasonic transducer along a measurement line; a flow velocity distribution measurement means for measuring flow velocity distribution of the fluid to be measured in a measurement region by receiving ultrasonic echoes (reflection wave A) reflected from the measurement region among the ultrasonic pulses incident into the fluid to be measured; and a flow rate operation means for operating a flow rate of the fluid to be measured in the measurement region based on the flow velocity distribution of the fluid to be measured, and a clamp-on type is adopted.
    Type: Application
    Filed: December 24, 2004
    Publication date: July 5, 2007
    Inventors: Michitsugu Mori, Kenichi Tezuka, Hideaki Tezuka
  • Publication number: 20070107535
    Abstract: [Object] An object of the present invention is to provide a technology to measure a flow rate more accurately by reducing an identification error when identifying the inner wall position from calculation result of flow velocity distribution in an ultrasonic flowmeter. [Organization] An ultrasonic flowmeter includes the fluid velocity distribution measuring means comprising: a graph output means for outputting a flow velocity distribution graph displaying the flow velocity in two axes of positions in the inner diameter direction of the fluid pipe relating to the measuring line and fluid velocities corresponding to the inner diameter direction; and an inner wall position calculating means for calculating the position of the inner wall with respect to the axis in the inner diameter direction; in which the flow rate operation means measures the flow rate of a fluid to be measured by integral operation based on the inner wall position calculated by the inner wall position calculating means.
    Type: Application
    Filed: December 24, 2004
    Publication date: May 17, 2007
    Applicant: The Tokyo Electric Power Company Incorported
    Inventors: Michitsugu Mori, Kenichi Tezuka, Hideaki Tezuki