Patents by Inventor Tadashi Watanabe

Tadashi Watanabe 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: 20170355194
    Abstract: An ink replenish container comprises a container main body that is able to store the ink; an ink outlet formation member, attached to a front end side of the container main body, to form an ink outlet; and a cap attachable to a front end side of the ink outlet formation member. The ink outlet includes an outer circumferential surface and an inner circumferential surface located inward of the outer circumferential surface, the inner circumferential surface surrounding an opening through which the ink passes. The cap includes a first protrusion that is configured to contact with the outer circumferential surface of the ink outlet to form a first exit seal portion, and a second protrusion that is configured to contact with the inner circumferential surface of the ink outlet to form a second exit seal portion.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Applicant: Seiko Epson Corporation
    Inventors: Noriyuki FUKASAWA, Taku ISHIZAWA, Tadashi WATANABE, Ryoichi TANAKA, Tadahiro MIZUTANI
  • Publication number: 20170355196
    Abstract: An ink replenish adjunctive device is used to replenish an ink to an ink tank that includes an ink inlet member having a flow path in an axial direction. The ink replenish adjunctive device includes a connection portion having an end that is connectable to the ink inlet member in a liquid-tight state, and an ink inflow portion that is configured to allow the ink flow toward the connection portion.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Applicant: Seiko Epson Corporation
    Inventors: Satoshi SHINADA, Tadahiro MIZUTANI, Taku ISHIZAWA, Noriyuki FUKASAWA, Tadashi WATANABE, Ryoichi TANAKA, Eiko YANAGIDA
  • Patent number: 9784450
    Abstract: A glow plug including a substantially cylindrical housing extending in an axial direction; a rod-shaped heater unit having a front end protruding from the front end of the housing and movable in the axial direction; a connecting member connecting the heater unit to the housing within the housing and allowing the heater unit to move in the axial direction; and a pressure sensor that detects pressure received by the heater unit. The heater unit has a large-diameter portion at the rear end thereof and a small-diameter portion frontward of the large-diameter portion and having a diameter smaller than the diameter of the large-diameter portion. The connecting member connects the small-diameter portion of the heater unit to the housing within the housing.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: October 10, 2017
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Yoshihiro Nakamura, Shunsuke Maeda, Tadashi Watanabe, Masayoshi Matsui
  • Publication number: 20170283639
    Abstract: An aqueous ink composition contains an organic solvent, a surfactant, and resin fine particles. The resin of the resin fine particles takes 500 minutes or more to melt at 40° C. with the surfactant.
    Type: Application
    Filed: March 1, 2017
    Publication date: October 5, 2017
    Inventors: Kenichi SEGUCHI, Takayoshi KAGATA, Tsuyoshi SANO, Akira MIZUTANI, Tadashi WATANABE
  • Publication number: 20170278702
    Abstract: A surface treatment method for a semiconductor layer includes growing a first layer on a substrate in a growth reactor, the first layer consisting of one of gallium nitride, aluminum gallium nitride and indium aluminium nitride; growing a second layer of gallium nitride on a surface of the first layer, the gallium nitride of the second GaN layer having a composition ratio of gallium to nitrogen larger than 2; taking the substrate out of the growth reactor after growing the second layer; and removing the second layer after taking the substrate out of the growth reactor.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 28, 2017
    Inventor: Tadashi Watanabe
  • Patent number: 9739487
    Abstract: A glow plug includes a cylindrical housing, a rod-shaped heater, a membrane portion, and a pressure sensor. The cylindrical housing extends along an axial direction. The rod-shaped heater extending along the axial direction is displaced along the axial direction and has one end portion disposed within the housing, and an other end portion which is exposed from the housing. The membrane portion connects together the heater and the housing and has a multi-layer construction which has a first layer and a second layer of which at least part is positioned nearer to the other end portion in the axial direction of the heater than the first layer. The pressure sensor measures a pressure within a combustion chamber in which the other end portion is disposed by making use of a displacement of the heater. A thickness of the second layer is larger than a thickness of the first layer.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: August 22, 2017
    Assignee: NGK SPARK PLUG CO. LTD.
    Inventors: Tadashi Watanabe, Yoshihiro Yamamoto, Toshiki Hirokawa, Akimitsu Sassa
  • Patent number: 9726376
    Abstract: A glow plug wherein a combustion gas prevention wall (67) extends radially outward on the outer circumferential surface of heater (10) such that when the heater (10) is viewed rearward from its forward end (10a) along the axial direction, the combustion gas prevention wall (67) closes an annular gap K1 at a position forward of annular membrane portion (63) of seal member (60). The combustion gas prevention wall (67) has an outer diameter D2 greater than the inner diameter D1 of forward end (136) of the housing.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: August 8, 2017
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Tadashi Watanabe, Yoshihiro Nakamura, Shunsuke Maeda, Masayoshi Matsui
  • Publication number: 20170166767
    Abstract: Provided is an ink composition that includes a color material, water, an organic solvent, and polymer particles, the organic solvent including an organic solvent with a standard boiling point of equal to or greater than 150° C. and equal to or less than 250° C., the content of the organic solvent that is an alkyl polyol with a standard boiling point of equal to or greater than 280° C. being equal to or less than 2.0% by mass with respect to a total amount of the ink composition, the polymer particles having a core-shell structure including core polymer and shell polymer, and a glass transition temperature of the shell polymer being higher than that of the core polymer, and that is used for a recording method using the ink composition and an aggregating liquid containing an aggregating agent capable of aggregating components of the ink composition and increasing viscosity of the components.
    Type: Application
    Filed: December 7, 2016
    Publication date: June 15, 2017
    Inventors: Tadashi WATANABE, Takayoshi KAGATA, Akira MIZUTANI, Kenichi SEGUCHI, Akiko MATSUZAKI
  • Patent number: 9673094
    Abstract: A semiconductor device having a via hole whose side surface is covered with nitride metal is disclosed. The via hole is formed within an insulating region that surrounds a conductive region, where both regions are made of nitride semiconductor materials. The via hole is filled with a back metal and in side surfaces thereof is covered with the nitride metal which is heat treated at a preset temperature for a preset period. Nitrogen atoms in the nitride metal diffuse into the nitride semiconductor materials in the insulating regions and compensate nitride vacancies therein. The interface between the nitride metal and the nitride semiconductor material is converted into an altered region that shows enough resistivity to suppress currents leaking from the via hole metal to the conductive region of the nitride semiconductor material.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: June 6, 2017
    Assignee: SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
    Inventors: Tadashi Watanabe, Hajime Matsuda
  • Publication number: 20170111995
    Abstract: Disclosed herein is a coil component that includes a first planar spiral conductor; a second planar spiral conductor laminated on the first planar spiral conductor and wound in an opposite direction to the first planar spiral conductor; a first external terminal electrically connected to an outer peripheral end of the first planar spiral conductor; a second external terminal electrically connected to an outer peripheral end of the second planar spiral conductor; and a third external terminal electrically connected in common to inner peripheral ends of the first and second planar spiral conductors.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Applicant: TDK Corporation
    Inventors: Tomonaga NISHIKAWA, Kouji KAWAMURA, Tomokazu ITO, Tadashi WATANABE, Mitsuhiko ENDO, Fumio WATANABE
  • Publication number: 20170110234
    Abstract: Disclosed herein is a coil component that includes first and second magnetic members; a coil layer arranged between the first and second magnetic members, the coil layer including a plurality of conductor layers and a plurality of non-magnetic insulating layers, the conductor layers and the non-magnetic insulating layers being alternately laminated, the conductor layers being connected to each other via through holes formed in the non-magnetic insulating layers to form a coil pattern; a first external terminal covering one end of the coil pattern exposed to at least one of side surfaces of the coil layer without covering the first and second magnetic members; and a second external terminal covering other end of the coil pattern exposed to at least one of the side surfaces of the coil layer without covering the first and second magnetic members.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 20, 2017
    Applicant: TDK Corporation
    Inventors: Tomonaga NISHIKAWA, Tomokazu ITO, Takeshi OKUMURA, Kouji KAWAMURA, Tadashi WATANABE, Hidenori TSUTSUI
  • Publication number: 20160190299
    Abstract: A semiconductor device having a via hole whose side surface is covered with nitride metals is disclosed. The via hole is formed within an insulating region that surrounds a conductive region, where both regions are made of nitride semiconductor materials. The via hole is filled with a back metal and in side surfaces thereof is covered with a nitride metal which is heat treated at a preset temperature for a preset period. Nitrogen atoms in the nitride metal diffuse into the nitride semiconductor materials in the insulating regions and compensate nitride vacancies therein. The interface between the nitride metal and the nitride semiconductor material is converted into an altered region that shows high resistivity enough to suppress currents leaking from the via hole metal to the conductive region of the nitride semiconductor material.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 30, 2016
    Applicant: SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
    Inventors: Tadashi WATANABE, Hajime MATSUDA
  • Patent number: 9199197
    Abstract: A fuel addition valve that adds fuel into the exhaust gas passage of the engine in the form of fine fuel droplets, an upstream NOx adsorption-reduction catalyst, and a downstream NOx adsorption-reduction catalyst are arranged in this order. Platinum Pt and palladium Pd, as noble metal, are supported on the downstream NOx adsorption-reduction NOx catalyst such that the ratio of the mole number of the platinum Pt to the sum of the mole numbers of the platinum Pt and the palladium Pd is approx. 50% to approx. 80%. Only platinum Pt is supported on the upstream NOx adsorption-reduction catalyst. According to this structure, even when liquid fuel is supplied into exhaust gas, NOx can be effectively released from the NOx adsorption-reduction catalyst, and further the amount of NOx that the NOx adsorption-reduction catalyst can adsorb at a low temperature increases.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: December 1, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kohei Yoshida, Yasuaki Nakano, Tadashi Watanabe, Kotaro Hayashi, Takamitsu Asanuma
  • Publication number: 20150179429
    Abstract: A surface treatment method for a semiconductor layer includes growing a first layer on a substrate in a growth reactor, the first layer consisting of one of gallium nitride, aluminum gallium nitride and indium aluminium nitride; growing a second layer of gallium nitride on a surface of the first layer, the gallium nitride of the second GaN layer having a composition ratio of gallium to nitrogen larger than 2; taking the substrate out of the growth reactor after growing the second layer; and removing the second layer after taking the substrate out of the growth reactor.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 25, 2015
    Inventor: Tadashi WATANABE
  • Publication number: 20150047592
    Abstract: A glow plug includes a cylindrical housing, a rod-shaped heater, a membrane portion, and a pressure sensor. The cylindrical housing extends along an axial direction. The rod-shaped heater extending along the axial direction is displaced along the axial direction and has one end portion disposed within the housing, and an other end portion which is exposed from the housing. The membrane portion connects together the heater and the housing and has a multi-layer construction which has a first layer and a second layer of which at least part is positioned nearer to the other end portion in the axial direction of the heater than the first layer. The pressure sensor measures a pressure within a combustion chamber in which the other end portion is disposed by making use of a displacement of the heater. A thickness of the second layer is larger than a thickness of the first layer.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 19, 2015
    Inventors: Tadashi WATANABE, Yoshihiro YAMAMOTO, Toshiki HIROKAWA, Akimitsu SASSA
  • Patent number: 8939121
    Abstract: A glow plug in which a convex portion (70) is formed in an outer peripheral surface (10b) of a heater (10) in a part facing an inner peripheral surface (137b) of a leading end part (137) of a housing (110) and interposed in a leading end side annular gap K1, so as to maintain a gap with the inner peripheral surface (137b). A decline in detection accuracy can be prevented to the extent that combustion gas can be received by the leading end (72) of the convex portion (70) even if soot clogging should occur.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: January 27, 2015
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Kenjiro Nishiyuki, Masahiro Kawakatsu, Yoshihiro Nakamura, Masayoshi Matsui, Shunsuke Maeda, Tadashi Watanabe
  • Publication number: 20130291820
    Abstract: A glow plug with a combustion pressure sensor is improved in airtightness between the same and a combustion chamber. The glow plug 100 includes a housing having a substantially tubular metallic shell extending in an axial direction and a substantially tubular cap member which is provided at the front end of the metallic shell, which is shorter in length along the axial direction than the metallic shell, and whose diameter decreases toward the front end thereof, a heater unit, a connecting member, and a pressure sensor. The cap member is formed of a material higher in tensile strength or yield strength than a material used to form the metallic shell, and the metallic shell is formed of a material higher in thermal expansion coefficient than that used to form the cap member.
    Type: Application
    Filed: February 21, 2012
    Publication date: November 7, 2013
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Tadashi Watanabe, Shunsuke Maeda, Yoshihiro Nakamura, Masayoshi Matsui
  • Publication number: 20130269641
    Abstract: A glow plug wherein a combustion gas prevention wall (67) extends radially outward on the outer circumferential surface of heater (10) such that when the heater (10) is viewed rearward from its forward end (10a) along the axial direction, the combustion gas prevention wall (67) closes an annular gap K1 at a position forward of annular membrane portion (63) of seal member (60). The combustion gas prevention wall (67) has an outer diameter D2 greater than the inner diameter D1 of forward end (136) of the housing.
    Type: Application
    Filed: February 21, 2012
    Publication date: October 17, 2013
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Tadashi Watanabe, Yoshihiro Nakamura, Shunsuke Maeda, Masayoshi Matsui
  • Publication number: 20130269640
    Abstract: A glow plug including a substantially cylindrical housing extending in an axial direction; a rod-shaped heater unit having a front end protruding from the front end of the housing and movable in the axial direction; a connecting member connecting the heater unit to the housing within the housing and allowing the heater unit to move in the axial direction; and a pressure sensor that detects pressure received by the heater unit. The heater unit has a large-diameter portion at the rear end thereof and a small-diameter portion frontward of the large-diameter portion and having a diameter smaller than the diameter of the large-diameter portion. The connecting member connects the small-diameter portion of the heater unit to the housing within the housing.
    Type: Application
    Filed: February 7, 2012
    Publication date: October 17, 2013
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Yoshihiro Nakamura, Shunsuke Maeda, Tadashi Watanabe, Masayoshi Matsui
  • Publication number: 20130042831
    Abstract: A glow plug in which a convex portion (70) is formed in an outer peripheral surface (10b) of a heater (10) in a part facing an inner peripheral surface (137b) of a leading end part (137) of a housing (110) and interposed in a leading end side annular gap K1, so as to maintain a gap with the inner peripheral surface (137b). A decline in detection accuracy can be prevented to the extent that combustion gas can be received by the leading end (72) of the convex portion (70) even if soot clogging should occur.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 21, 2013
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Kenjiro NISHIYUKI, Masahiro KAWAKATSU, Yoshihiro NAKAMURA, Masayoshi MATSUI, Shunsuke MAEDA, Tadashi WATANABE