Patents by Inventor Akira Sugiyama

Akira Sugiyama 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: 20200295171
    Abstract: A semiconductor device of an embodiment includes a first nitride semiconductor layer; a second nitride semiconductor layer placed on the first nitride semiconductor layer; a first electrode placed on the second nitride semiconductor layer; a second electrode placed on the first nitride semiconductor layer; a gate electrode placed between the first electrode and the second electrode; a first field plate electrode placed on the second nitride semiconductor layer, the first field plate electrode having the same height as the gate electrode; and a second field plate electrode provided on an upper side of the first field plate electrode, the second field plate electrode being placed on a side of the second electrode compared to the first field plate electrode.
    Type: Application
    Filed: September 3, 2019
    Publication date: September 17, 2020
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Hung Hung, Yasuhiro Isobe, Akira Yoshioka, Toru Sugiyama, Masaaki Iwai, Naonori Hosokawa, Masaaki Onomura
  • Patent number: 10771057
    Abstract: A semiconductor device of embodiments includes a first normally-off transistor having a first electrode, a second electrode, and a first control electrode, a normally-on transistor having a third electrode electrically connected to the second electrode via a first wiring, a fourth electrode, and a second control electrode, a second normally-off transistor having a fifth electrode, a sixth electrode electrically connected to the third electrode via a second wiring, and a third control electrode, a first diode having a first anode electrically connected to the second control electrode and a first cathode electrically connected to the third electrode, and a capacitor having a first end portion connected to the first anode and the second control electrode and a second end portion.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: September 8, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Akira Yoshioka, Toru Sugiyama, Masaaki Iwai, Naonori Hosokawa, Masaaki Onomura, Hung Hung, Yasuhiro Isobe
  • Patent number: 10731025
    Abstract: A powder contains particles containing a water-soluble material and a water-insoluble material. When dependence on temperature of a storage elastic modulus and a loss elastic modulus of a cylindrical compact of the powder in a shear direction, the cylindrical compact having a diameter of 10 mm and a thickness of 1 mm, is measured with a rotational rheometer at an angular frequency of 1 Hz and a rate of temperature increase of 2° C./min, letting a temperature at which the storage elastic modulus is 1 MPa be T° C., the storage elastic modulus is always higher than the loss elastic modulus in a temperature range of T° C. to (T+10)° C.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: August 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yukio Hanyu, Tomohiro Saito, Akira Sugiyama, Naotake Sato, Masahiko Takahashi
  • Patent number: 10695988
    Abstract: A method of producing a three-dimensional shaped article includes a step of forming particle layers by arranging particles containing a material for forming a shaped article and particles containing a material having higher solubility in fluid than the material for forming the shaped article, a step of forming a stack by melting and stacking the particle layers, and a step of removing the material having higher solubility in the fluid than the material for forming the shaped article from the stack by dissolving the material having higher solubility in the fluid than the material for forming the shaped article in the fluid.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: June 30, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yukio Hanyu, Akira Sugiyama, Naotake Sato, Tatsuya Tada, Satoru Yamanaka
  • Publication number: 20200199848
    Abstract: A storage battery (21) is configured of a plurality of cells (22A) to (22N) series-connected to each other. A battery controller (27) receives power supplied from a lead battery (31). The battery controller (27) executes balancing control that reduces variation in cell voltages (VcA) to (VcN) of the plurality of cells (22A) to (22N). The battery controller (27) executes the balancing control in a time range during which a voltage of the lead battery (31) becomes equal to or more than a predetermined given voltage value (V1) and a charging rate of the storage battery (21) becomes equal to or more than a predetermined given charging rate value (SOC1) after a key switch (16) is switched from an on state to an off state.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 25, 2020
    Inventors: Haruki SUGIYAMA, Ken TAKEUCHI, Akira WATANABE
  • Publication number: 20200198179
    Abstract: A three-dimensional object is obtained by repeating multiple times forming a ceramic powder layer formed of a ceramic powder and applying to a desired region of the ceramic powder layer a liquid precursor composition at least containing at least any one of a metal alkoxide, a metal chloride, a hydrolysate of the metal alkoxide and a polycondensate of the hydrolysate, and water, thereby obtaining a laminated body; subsequently heating the laminated body at a temperature lower than the sintering temperature of the ceramic powder; and removing the ceramic particle in a region to which the precursor composition has not been applied.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Inventors: Akira Sugiyama, Yukio Hanyu, Naotake Sato, Masahiko Takahashi, Tomohiro Saito
  • Patent number: 10647593
    Abstract: The object of the invention is to provide an adsorbent that can adsorb ammonia with no large volume change between absorption and desorption, that has a high ammonia and/or ammonium ion adsorption capacity, and that can have an additional function by gaining proper control of composition, etc. The invention makes it possible to provide an adsorbent that absorbs ammonia and/or ammonium ions through the use of a metal cyanocomplex as an ammonia adsorbent, experiences no or little volume change, exhibits high enough capacity for adsorbing ammonia and/or ammonium ions, and has a function of decomposing ammonia as well as a function of varying optical responses before and after adsorption, etc.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: May 12, 2020
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Akira Takahashi, Tohru Kawamoto, Parajuli Durga, Hisashi Tanaka, Yutaka Sugiyama, Yukiya Hakuta
  • Patent number: 10616394
    Abstract: A cordless telephone that establishes a call with a telephone of a destination via a base unit includes a controller and a radio unit. The controller modulates control data for controlling radio communication and voice data to be transmitted to the telephone, and stores a modulation control signal of the control data and a modulation voice signal of the voice data in a half slot of a Digital Enhanced Cordless Telecommunications (DECT) system. The radio unit transmits, by radio, the half slot to the base unit.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: April 7, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroyuki Ishihara, Akira Shibuta, Hirokazu Sugiyama
  • Publication number: 20200091331
    Abstract: A semiconductor device includes first and second nitride semiconductor layers, a first electrode electrically connected to the first nitride semiconductor layer, a second electrode electrically connected to the first nitride semiconductor layer, a gate electrode between the first and second electrodes, a first field plate electrode electrically connected to the first electrode, a second field plate electrode between the gate electrode and the second electrode and electrically connected to the first electrode, a first conductive layer on the gate electrode, and a second conductive layer on the first conductive layer. A distance between the gate electrode and the second field plate electrode in a lateral direction is shorter than a distance between the first conductive layer and the second field plate electrode in the lateral direction, and is equal to or shorter than a distance between the second conductive layer and the second field plate electrode.
    Type: Application
    Filed: March 1, 2019
    Publication date: March 19, 2020
    Inventors: Hung HUNG, Akira YOSHIOKA, Toru SUGIYAMA, Masaaki IWAI, Naonori HOSOKAWA
  • Publication number: 20200086559
    Abstract: An object shaping method includes a step of forming a powder layer using first powder, a step of placing second powder having an average particle diameter smaller than an average particle diameter of the first powder at a part of a region of the powder layer, and a first heating step of heating the powder layer in which the second powder is placed. The average particle diameter is equal to or larger than 1 nm and equal to or smaller than 500 nm, and the first heating step performs heating the powder layer at a temperature at which particles contained in the second powder are sintered or melted.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventors: Akira Sugiyama, Hirokazu Usami, Yohei Masada, Takaharu Aotani
  • Publication number: 20200055873
    Abstract: The present invention provides a novel compound having antiviral activity, especially HIV replication inhibitory activity and a medicament containing the same. The compound represented by the formula: wherein A3 is CR3A, CR3AR3B, N or NR3C; R3A, R3B, R4A and R4B are each independently a hydrogen atom, halogen, cyano, substituted or unsubstituted alkyl, substituted or unsubstituted alkynyl, or substituted or unsubstituted non-aromatic carbocyclyl; R3C is a hydrogen atom, substituted or unsubstituted alkyl, or substituted or unsubstituted non-aromatic carbocyclyl; ring T1 is substituted or unsubstituted nitrogen-containing non-aromatic heterocycle; R1 is a hydrogen atom, halogen, cyano, or substituted or unsubstituted alkyl; R2 is each independently substituted or unsubstituted alkyl or the like: n is 1 or 2; R3 is substituted or unsubstituted aromatic carbocyclyl or the like; R4 is a hydrogen atom or a carboxy protecting group.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 20, 2020
    Applicant: Shionogi & Co., Ltd.
    Inventors: Yoshinori Tamura, Shuichi Sugiyama, Akira Matsumura, Toshiyuki Akiyama, Yutaka Tomida
  • Patent number: 10545448
    Abstract: An image forming apparatus includes a photoconductor unit that supports a photoconductor drum, a transfer roller brought into pressure contact with the photoconductor drum, a transfer unit that supports the transfer roller, a sheet guide provided between the photoconductor unit and the fixing unit, and a support holder that supports the transfer unit and the sheet guide. The support holder moves to bring the transfer unit and the sheet guide into and out of contact with the photoconductor unit and the fixing unit. The transfer unit is provided with a transfer positioning section that positions the transfer unit by coming into abutment therewith. The sheet guide is provided with a guide positioning section that positions the sheet guide by coming into abutment therewith. The transfer unit and the sheet guide are joined to each other by an engagement unit that engages the two with each other.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: January 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sugiyama, Hiroshi Tachiki
  • Publication number: 20200017558
    Abstract: An object of this invention is to provide a streptavidin mutant reduced in affinity to the naturally-occurring biotin, and to provide a modified biotin which shows a high affinity to such streptavidin mutant reduced in affinity to the naturally-occurring biotin. This invention can provide a compound composed of a dimer of modified biotin, a streptavidin mutant, angsd usage of them.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 16, 2020
    Applicant: SAVID THERAPEUTICS INC.
    Inventors: Akira SUGIYAMA, Hirofumi DOI, Tatsuhiko KODAMA, Tsuyoshi INOUE, Eiichi MIZOHATA, Tatsuya KAWATO, Tomohiro MESHIZUKA, Motomu KANAI, Yohei SHIMIZU, Noriaki TAKASU, Mari TAKATSU
  • Patent number: 10534379
    Abstract: A pressure reducing valve includes a body, an annular valve seat, a valve element, and a pressing mechanism configured to press the valve element. The pressing mechanism includes a plug provided downstream of the valve seat and having a plug hole, and a pin including a sliding portion and an upstream end, the sliding portion having a shaft shape and being inserted in the plug hole such that a gap is provided between the sliding portion and an inner peripheral surface of the plug hole, and the upstream end being provided upstream of the sliding portion so as to contact the valve element. A fitting length of the sliding portion with respect to the plug hole and the gap between the sliding portion and the plug hole satisfy 0.0005 L<C<0.00908 L, where L indicates the fitting length, and C indicates the gap.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: January 14, 2020
    Assignees: JTEKT CORPORATION, TOYOTA TECHNICAL DEVELOPMENT CORPORATION, SOKEN, INC.
    Inventors: Kazuhisa Sugiyama, Koji Nishi, Akira Nakano, Yutaka Hotta, Akira Yamashita, Shota Yamamoto, Yasushi Mitsuishi
  • Patent number: 10532383
    Abstract: Provided is a method of producing a three-dimensional object, including: a first step of placing and laminating a water-insoluble structural material and a support material each containing a water-soluble material and a fiber material to form a material layer; and a second step of bringing a portion of the shaped object including the support material into contact with a liquid containing water and a bipolar surfactant to remove the portion.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: January 14, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tomohiro Saito, Yukio Hanyu, Akira Sugiyama
  • Patent number: 10514070
    Abstract: A method of manufacturing an outer joint member of a constant velocity universal includes forming cup and shaft members of medium carbon steel, preparing, as the cup member, a cup member having cylindrical and bottom portions integrally formed by forging, and a joining end surface formed on an outer surface of the bottom portion after the forging, preparing, as the shaft member, a shaft member having a joining end surface to be joined to the bottom portion of the cup member, and bringing the joining end surfaces of the cup and shaft members into abutment against each other. The method also includes welding the cup and shaft members from an outer side of the cup member to an abutment portion between the cup and shaft members in a radial direction of the cup member.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: December 24, 2019
    Assignee: NTN CORPORATION
    Inventors: Renji Natsume, Kuniaki Harada, Yoshiya Mano, Kiyohiro Suzuki, Shunichirou Tsuboi, Akira Nagatake, Tatsuro Sugiyama, Masazumi Kobayashi
  • Publication number: 20190386422
    Abstract: A connector connecting structure can block liquid leakage outside a liquid-filled case and reduce the size of the device including a number of elements and a liquid sealed case and the number of electrical connection points. A connector connecting structure is provided with a connector AT connector (first connector) fixed to an AT case, an ECU connector (second connector) connected to the AT connector (first connector), a first sealing member sealing a space between the AT case (liquid sealed case) and the AT connector (first connector), and a second sealing member sealing a space between an ECU side housing (second housing) and a male-type terminal (second terminal).
    Type: Application
    Filed: May 20, 2019
    Publication date: December 19, 2019
    Inventors: Kenji Takahashi, Akira Sato, Kiyotaka Mizuno, Takahiro Sugiyama, Teruo Kato, Riku Kambe
  • Publication number: 20190387090
    Abstract: A cordless telephone that establishes a call with a telephone of a destination via a base unit includes a controller and a radio unit. The controller modulates control data for controlling radio communication and voice data to be transmitted to the telephone, and stores a modulation control signal of the control data and a modulation voice signal of the voice data in a half slot of a Digital Enhanced Cordless Telecommunications (DECT) system. The radio unit transmits, by radio, the half slot to the base unit.
    Type: Application
    Filed: April 17, 2019
    Publication date: December 19, 2019
    Inventors: Hiroyuki ISHIHARA, Akira SHIBUTA, Hirokazu SUGIYAMA
  • Patent number: 10494380
    Abstract: The present invention provides a novel compound having antiviral activity, especially HIV replication inhibitory activity and a medicament containing the same. The compound represented by the formula: wherein A3 is CR3A, CR3AR3B, N or NR3C; R3A, R3B, R4A and R4B are each independently a hydrogen atom, halogen, cyano, substituted or unsubstituted alkyl, substituted or unsubstituted alkynyl, or substituted or unsubstituted non-aromatic carbocyclyl; R3C is a hydrogen atom, substituted or unsubstituted alkyl, or substituted or unsubstituted non-aromatic carbocyclyl; ring T1 is substituted or unsubstituted nitrogen-containing non-aromatic heterocycle; R1 is a hydrogen atom, halogen, cyano, or substituted or unsubstituted alkyl; R2 is each independently substituted or unsubstituted alkyl or the like: n is 1 or 2; R3 is substituted or unsubstituted aromatic carbocyclyl or the like; R4 is a hydrogen atom or a carboxy protecting group.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: December 3, 2019
    Assignee: Shionogi & Co., Ltd.
    Inventors: Yoshinori Tamura, Shuichi Sugiyama, Akira Matsumura, Toshiyuki Akiyama, Yutaka Tomida
  • Patent number: 10496031
    Abstract: To allow easy access to a jammed sheet when a sheet jam occurs in a sheet processing device installed inside the body of an image forming apparatus. An image forming apparatus is provided with a sheet binding unit that applies binding to sheets. The sheet binding unit has a carry-in port for receiving a sheet to be conveyed to a sheet carry-in path formed thereinside and an openable cover for opening the carry-in port. The end portion of the openable cover on the carry-in port side and an end portion of an operation part for inputting an operational item for the operation carried out in the image forming apparatus are arranged spaced apart from each other at a predetermined distance.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: December 3, 2019
    Assignee: CANON FINETECH NISCA INC.
    Inventor: Akira Sugiyama