Patents by Inventor Katsumi Takahashi

Katsumi Takahashi 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: 10525367
    Abstract: There is provided a spinning top excellent in the dimensional accuracy and excellent in the rotation balance and a method for manufacturing the spinning top. The spinning top 100 includes a rotating shaft 110 and a rotating outer circumference section 120 that is fitted to the outer circumference of the rotating shaft 110 so as to be coaxial with the rotating shaft 110, in which the rotating shaft 110 includes a parallel section 112 that has a circular cylindrical shape parallel to the rotation axis AX of the rotating shaft 110 and is fitted to the rotating outer circumference section 120, a tapered section 114 that continues to the parallel section 112, inclines by a predetermined angle with respect to the rotation axis AX of the rotating shaft 110, and is fitted to the rotating outer circumference section 120, and a tip section 116 that continues to the parallel section 112 or the tapered section 114.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: January 7, 2020
    Assignee: SPINNING TOP CORPORATION
    Inventor: Katsumi Takahashi
  • Publication number: 20190376903
    Abstract: An OH radical detection probe (102) includes an aromatic carboxylic acid, a polar aprotic organic solvent, and a polar protic organic solvent.
    Type: Application
    Filed: August 20, 2019
    Publication date: December 12, 2019
    Applicant: IHI CORPORATION
    Inventors: Takao KURATA, Katsumi TAKAHASHI, Kazuyuki SAKAMOTO
  • Patent number: 10390282
    Abstract: In a wireless communication system that includes a plurality of wireless terminals each of which has a first device type and transmits data to a destination, and a plurality of wireless relay apparatuses each of which has a second device type and relays the data that is received in wireless communication with each wireless terminal to the destination, each of the plurality of wireless terminals detects a wireless frame, receives data contained in the wireless frame when the detected wireless frame contains information that represents the first device type, and avoids receiving data contained in the wireless frame when the detected wireless frame contains information that represents the second device type.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: August 20, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Katsumi Sakurai, Yuji Takahashi, Takashi Higashinakagawa, Yasuyuki Kawaida, Tadashige Iwao
  • Patent number: 10361191
    Abstract: A semiconductor device includes a switching device region including an active region having a first conductivity-type emitter region formed on an upper surface side of a first conductivity-type substrate, a second conductivity-type base region formed on an upper surface side of the substrate, a second conductivity-type collector layer formed on a lower surface side of the substrate, and a diode region having a second conductivity-type anode layer formed on the upper surface side of the substrate and a first conductivity-type cathode layer formed on the lower surface side of the substrate, wherein the cathode layer is separated from the active region when planarly viewed, and on an upper surface side of the active region, a second conductivity type high-concentration region having an impurity concentration higher than that of the anode layer is formed.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: July 23, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsuo Takahashi, Katsumi Uryu
  • Publication number: 20190176045
    Abstract: There is provided a spinning top excellent in the dimensional accuracy and excellent in the rotation balance and a method for manufacturing the spinning top. The spinning top 100 includes a rotating shaft 110 and a rotating outer circumference section 120 that is fitted to the outer circumference of the rotating shaft 110 so as to be coaxial with the rotating shaft 110, in which the rotating shaft 110 includes a parallel section 112 that has a circular cylindrical shape parallel to the rotation axis AX of the rotating shaft 110 and is fitted to the rotating outer circumference section 120, a tapered section 114 that continues to the parallel section 112, inclines by a predetermined angle with respect to the rotation axis AX of the rotating shaft 110, and is fitted to the rotating outer circumference section 120, and a tip section 116 that continues to the parallel section 112 or the tapered section 114.
    Type: Application
    Filed: May 2, 2017
    Publication date: June 13, 2019
    Applicant: Spinning Top Corporation
    Inventor: Katsumi TAKAHASHI
  • Patent number: 10309401
    Abstract: A vacuum exhaust system which exhausts gas from chambers and which comprises a plurality of branch channels for the exhaustion of the gas from the chambers, a main pipeline in the form of a confluence of the plurality of branch channels, channel open-close valves fitted to correspond with each of the said plurality of branch channels, a channel-switching valve connecting the main channel and a plurality of selection channels and allowing flow between the main channel and any one of the plurality of selection channels, a first pump which functions as a gas exhaust means in the molecular flow region of the gas and is fitted to one of the plurality of branch channels, and second pumps which function as gas exhaust means in the viscous flow region of the gas and are fitted to the plurality of selection channels.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: June 4, 2019
    Assignee: Edwards Limited
    Inventors: Nigel Paul Schofield, Andrew Seeley, Katsumi Nishimura, Katsunori Takahashi
  • Patent number: 9606599
    Abstract: A power supply circuit includes a first power supply for a normal power mode, a second power supply for a power saving mode, which is connected in parallel with the first power supply, a controller to which power from the first power supply and power from the second power supply are supplied via a common connection point, and a switch element which is connected between an output terminal of the first power supply and the connection point and controls power that is supplied to the controller, wherein the switch element includes a diode between a source terminal and a drain terminal of the switch element, the drain terminal of the switch element is connected to the first power supply side to prevent current flowing from the connection point toward the first power supply, and the source terminal of the switch element is connected to the connection point side.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsumi Takahashi
  • Publication number: 20150089924
    Abstract: An exhaust gas processing system includes a cylindrical tube through which an exhaust gas of an engine passes, a sensor configured to detect information regarding the exhaust gas discharged from the engine, a coil antenna provided on an outer periphery of the cylindrical tube and connected to a high-frequency power supply, and a control unit configured to control output power of the high-frequency power supply. The control unit controls output power of the high-frequency power supply based on the information detected by the sensor.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 2, 2015
    Applicant: Hitachi Kokusai Electric Inc.
    Inventors: Unryu Ogawa, Kotaro Takenaga, Katsumi Takahashi
  • Patent number: 8989391
    Abstract: A secret sharing system according to the present invention includes N secret sharing apparatuses. The secret sharing system according to the present invention includes fragment replacement means and reshare means. The fragment replacement means selects a number, smaller than N, of secret sharing apparatuses, generates a bijection ? of {1, . . . , K}?{1, . . . , K} among the selected secret sharing apparatuses and designates a fragment a?(k)i recorded in a selected secret sharing apparatus as a k-th fragment (i represents an identification number that indicates a selected secret sharing apparatus). The reshare means performs reshare of fragments of a numeric value used as replacements by the fragment replacement means to determine new fragments.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: March 24, 2015
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Koki Hamada, Dai Ikarashi, Koji Chida, Katsumi Takahashi
  • Publication number: 20140157029
    Abstract: A power supply circuit includes a first power supply for a normal power mode, a second power supply for a power saving mode, which is connected in parallel with the first power supply, a controller to which power from the first power supply and power from the second power supply are supplied via a common connection point, and a switch element which is connected between an output terminal of the first power supply and the connection point and controls power that is supplied to the controller, wherein the switch element includes a diode between a source terminal and a drain terminal of the switch element, the drain terminal of the switch element is connected to the first power supply side to prevent current flowing from the connection point toward the first power supply, and the source terminal of the switch element is connected to the connection point side.
    Type: Application
    Filed: November 25, 2013
    Publication date: June 5, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Katsumi Takahashi
  • Publication number: 20130337885
    Abstract: The game machine and game program of the present invention display, at the start of a game, multiple static symbols by constantly changing to various types of symbols including the wild symbol. The game machine then executes a static display by displaying such changing symbols statically again in each display area and recognizes the arrangements of each static symbol. Then, the game machine visually displays the arrangement of the symbols by which multiple wins are established or the win line related to such arrangements of the symbols, when the pre-determined combinations of symbols, in which at least one wild symbol is included, are arranged so that multiple wins are established. The game machine and game program according to the present invention increases the player's interest and arouses the player's anticipation.
    Type: Application
    Filed: July 30, 2013
    Publication date: December 19, 2013
    Applicant: Konami Gaming, Inc.
    Inventors: Satoshi Suda, Katsumi Takahashi, Takaaki Inoue, Takayuki Suzuki
  • Patent number: 8587627
    Abstract: An image forming apparatus includes an image forming unit having an exposure unit configured to irradiate each of a plurality of photosensitive members with a corresponding light beam, a light amount control unit configured to control a light amount of the light beams, a plurality of developing units configured to develop electrostatic latent images formed on the photosensitive members by exposure with the light beams, and a transfer unit configured to transfer toner images formed on the photosensitive members onto an image carrier; a pattern forming unit configured to control the image forming unit to form a misalignment detection pattern for detecting a relative misalignment between the toner images transferred onto the image carrier; a pattern reading unit configured to read the misalignment detection pattern; and a correction unit configured to correct the relative misalignment between the toner images based on the reading result obtained by the pattern reading unit.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: November 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Takahashi, Shinya Suzuki
  • Patent number: 8550906
    Abstract: The game machine and game program of the present invention display, at the start of a game, multiple static symbols by constantly changing to various types of symbols including the wild symbol. The game machine then executes a static display by displaying such changing symbols statically again in each display area and recognizes the arrangements of each static symbol. Then, the game machine visually displays the arrangement of the symbols by which multiple wins are established or the win line related to such arrangements of the symbols, when the pre-determined combinations of symbols, in which at least one wild symbol is included, are arranged so that multiple wins are established. The game machine and game program according to the present invention increases the player's interest and arouses the player's anticipation.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: October 8, 2013
    Assignee: Konami Gaming Incorporated
    Inventors: Satoshi Suda, Katsumi Takahashi, Takaaki Inoue, Takayuki Suzuki
  • Patent number: 8496736
    Abstract: The present invention relates to a hydrogen supply device which supplies hydrogen by selectively permitting permeation of hydrogen contained in a hydrogen containing gas (G1). This device includes: a first metal layer (2) which dissociates hydrogen molecules into hydrogen ions by a catalytic reaction and has hydrogen permeability; a second metal layer (3) which creates hydrogen molecules by bonding hydrogen ions to each other using electrons and has hydrogen permeability; a hydrogen permeation layer (1) which is interposed between the first metal layer (2) and the second metal layer (3) and permits permeation of the hydrogen ions from the first metal layer (2) to the second metal layer (3) by the application of a voltage; and a voltage application (7) for applying the voltage to the hydrogen permeation layer (1) by setting the first metal layer (2) as an anode and setting the second metal layer (3) as a cathode.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: July 30, 2013
    Assignees: IHI Corporation, Tamagawa K-12 & University
    Inventors: Junya Nishino, Katsumi Takahashi, Hiroyuki Obara
  • Publication number: 20130182836
    Abstract: A secret sharing system according to the present invention includes N secret sharing apparatuses. The secret sharing system according to the present invention includes fragment replacement means and reshare means. The fragment replacement means selects a number, smaller than N, of secret sharing apparatuses, generates a bijection ? of {1, . . . , K}?{1, . . . , K}among the selected secret sharing apparatuses and designates a fragment a?(k)i recorded in a selected secret sharing apparatus as a k-th fragment (i represents an identification number that indicates a selected secret sharing apparatus). The reshare means performs reshare of fragments of a numeric value used as replacements by the fragment replacement means to determine new fragments.
    Type: Application
    Filed: October 3, 2011
    Publication date: July 18, 2013
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Koki Hamada, Dai Ikarashi, Koji Chida, Katsumi Takahashi
  • Patent number: D854587
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 23, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Atsushi Ninomiya, Yusuke Daimon, Katsumi Usami, Shigehisa Hagura, Ei Takahashi, Takeo Manabe
  • Patent number: D856379
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 13, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Atsushi Ninomiya, Yusuke Daimon, Katsumi Usami, Shigehisa Hagura, Ei Takahashi, Takeo Manabe
  • Patent number: D856380
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 13, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Atsushi Ninomiya, Yusuke Daimon, Katsumi Usami, Ei Takahashi, Takeo Manabe
  • Patent number: D856381
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 13, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Atsushi Ninomiya, Yusuke Daimon, Katsumi Usami, Ei Takahashi, Takeo Manabe
  • Patent number: D857755
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 27, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Atsushi Ninomiya, Yusuke Daimon, Katsumi Usami, Shigehisa Hagura, Ei Takahashi, Takeo Manabe