Patents by Inventor Makoto Sakuma

Makoto Sakuma 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: 20240074269
    Abstract: A display device is a display device provided with a display region including a plurality of pixels and a frame region surrounding the display region, and includes: a thin film transistor layer; and a light-emitting element layer including a plurality of light-emitting elements, each including a first electrode, a function layer, and a second electrode, and each having a different luminescent color, wherein the function layer includes a light-emitting layer, and a pair of holding layers sandwiching the light-emitting layer and each including a photosensitive material and a conductive nanoparticle.
    Type: Application
    Filed: January 18, 2021
    Publication date: February 29, 2024
    Inventors: MAKOTO KITAGAWA, JUN SAKUMA, Yunting SHEN
  • Publication number: 20160181148
    Abstract: In one embodiment, a semiconductor device includes a substrate, first and second interconnects provided on the substrate to be apart from each other, and third and fourth interconnects provided on the substrate to be apart from each other. The device further includes a first pad portion connected with the first or third interconnect, and a second pad portion connected with the second or fourth interconnect, and provided to be apart from the first pad portion. The device further includes one or more fifth interconnects including an interconnect provided between the first interconnect and the second interconnect, and provided between at least one of the first and second pad portions and the first interconnect, and one or more sixth interconnects including an interconnect provided between the third interconnect and the fourth interconnect, and provided between at least one of the first and second pad portions and the third interconnect.
    Type: Application
    Filed: March 9, 2015
    Publication date: June 23, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Makoto SAKUMA
  • Patent number: 8313997
    Abstract: A manufacturing method for a semiconductor memory having a memory cell area, a peripheral area and a boundary area having a specific width provided therebetween, including performing a first exposure to the memory cell array area using a first mask formed of a first patterned transparent substrate and a first light shielding portion provided on the first transparent substrate and positioned above the peripheral circuit area; and performing a second exposure to the peripheral circuit area using a second mask including a second patterned transparent substrate and a second light shielding portion positioned above the memory cell array area. The first and second masks have respective first and second unpatterned areas positioned above the peripheral circuit and boundary areas, and the memory cell array area, respectively, the first and the second exposures forming a same wiring layer above the semiconductor substrate.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: November 20, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Sakuma, Takuya Futatsuyama
  • Publication number: 20120135356
    Abstract: A semiconductor device includes a memory cell array area, a peripheral circuit area on a periphery of the memory cell array area, and a boundary area having a specific width between the memory cell array area and the peripheral circuit area, the memory cell array area including a cell area including nonvolatile semiconductor memory cells, linear wirings extending from inside of the cell area to an area outside the cell area, and lower layer wirings in a lower layer than the linear wirings in the boundary area and electrically connected to the linear wirings, and wiring widths of the lower layer wirings being larger than widths of the linear wirings, the peripheral circuit area including a patterns electrically connected to the linear wirings via the lower layer wirings, the boundary area failing to be provided with the linear wirings and a wiring in same layer as the linear wirings.
    Type: Application
    Filed: January 27, 2012
    Publication date: May 31, 2012
    Inventors: Makoto Sakuma, Takuya Futatsuyama
  • Patent number: 8133867
    Abstract: A therapeutic agent for rheumatoid arthritis, particularly a therapeutic agent for ameliorating an inflammatory symptom or bone deformity in rheumatoid arthritis, which comprises an antibody that binds to a hepatocyte growth factor receptor as an active ingredient.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: March 13, 2012
    Assignee: Seikagaku Corporation
    Inventors: Akira Otsuka, Makoto Sakuma
  • Patent number: 8129776
    Abstract: A semiconductor device includes a memory cell array area, a peripheral circuit area on a periphery of the memory cell array area, and a boundary area having a specific width between the memory cell array area and the peripheral circuit area, the memory cell array area including a cell area including nonvolatile semiconductor memory cells, linear wirings extending from inside of the cell area to an area outside the cell area, and lower layer wirings in a lower layer than the linear wirings in the boundary area and electrically connected to the linear wirings, and wiring widths of the lower layer wirings being larger than widths of the linear wirings, the peripheral circuit area including a patterns electrically connected to the linear wirings via the lower layer wirings, the boundary area failing to be provided with the linear wirings and a wiring in same layer as the linear wirings.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 6, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Sakuma, Takuya Futatsuyama
  • Publication number: 20110267867
    Abstract: A semiconductor device includes a memory cell array area, a peripheral circuit area on a periphery of the memory cell array area, and a boundary area having a specific width between the memory cell array area and the peripheral circuit area, the memory cell array area including a cell area including nonvolatile semiconductor memory cells, linear wirings extending from inside of the cell area to an area outside the cell area, and lower layer wirings in a lower layer than the linear wirings in the boundary area and electrically connected to the linear wirings, and wiring widths of the lower layer wirings being larger than widths of the linear wirings, the peripheral circuit area including a patterns electrically connected to the linear wirings via the lower layer wirings, the boundary area failing to be provided with the linear wirings and a wiring in same layer as the linear wirings.
    Type: Application
    Filed: July 14, 2011
    Publication date: November 3, 2011
    Inventors: Makoto SAKUMA, Takuya Futatsuyama
  • Patent number: 7998812
    Abstract: A semiconductor device includes a memory cell array area, a peripheral circuit area on a periphery of the memory cell array area, and a boundary area having a specific width between the memory cell array area and the peripheral circuit area, the memory cell array area including a cell area including nonvolatile semiconductor memory cells, linear wirings extending from inside of the cell area to an area outside the cell area, and lower layer wirings in a lower layer than the linear wirings in the boundary area and electrically connected to the linear wirings, and wiring widths of the lower layer wirings being larger than widths of the linear wirings, the peripheral circuit area including a patterns electrically connected to the linear wirings via the lower layer wirings, the boundary area failing to be provided with the linear wirings and a wiring in same layer as the linear wirings.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: August 16, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Sakuma, Takuya Futatsuyama
  • Patent number: 7994642
    Abstract: A semiconductor memory device includes: a first dielectric formed on top of a semiconductor substrate; a contact plug embedded in the first dielectric; a second dielectric formed on top of the first interlayer dielectric; an interconnection layer embedded in a groove formed in the second dielectric on top of the contact plug; and an insulating film formed in the second dielectric adjacent to a side surface of the interconnection layer. The contact plug has a notch in a part of a top surface of the contact plug. The insulating film is formed to extend from a top surface of the second dielectric to the notch included in the contact plug.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: August 9, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Sakuma, Yasushi Kumagai
  • Publication number: 20100177546
    Abstract: A semiconductor device includes a memory cell array area, a peripheral circuit area on a periphery of the memory cell array area, and a boundary area having a specific width between the memory cell array area and the peripheral circuit area, the memory cell array area including a cell area including nonvolatile semiconductor memory cells, linear wirings extending from inside of the cell area to an area outside the cell area, and lower layer wirings in a lower layer than the linear wirings in the boundary area and electrically connected to the linear wirings, and wiring widths of the lower layer wirings being larger than widths of the linear wirings, the peripheral circuit area including a patterns electrically connected to the linear wirings via the lower layer wirings, the boundary area failing to be provided with the linear wirings and a wiring in same layer as the linear wirings.
    Type: Application
    Filed: March 23, 2010
    Publication date: July 15, 2010
    Inventors: Makoto SAKUMA, Takuya FUTATSUYAMA
  • Patent number: 7728435
    Abstract: A semiconductor device comprising a first insulation layer, a second insulation layer, a first barrier film, a second barrier film, a diffusion layer. The device further comprises an upper contact hole, a lower contact hole, and a contact plug. The upper contact hole penetrates the second insulation layer and has a bottom in the second barrier film. The bottom has a width greater than a trench made in the first insulation layer, as measured in a direction crossing the widthwise direction of the trench. The lower contact hole penetrates the first insulation layer and first barrier film, communicates with the first contact hole via the trench and is provided on the diffusion layer. The upper portion of the lower contact hole has the same width as the trench. The contact plug is provided in the upper contact hole and lower contact hole.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: June 1, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Sakuma, Yasuhiko Matsunaga, Fumitaka Arai, Kikuko Sugimae
  • Patent number: 7701742
    Abstract: A semiconductor device includes a memory cell array area, a peripheral circuit area on a periphery of the memory cell array area, and a boundary area having a specific width between the memory cell array area and the peripheral circuit area, the memory cell array area including a cell area including nonvolatile semiconductor memory cells, linear wirings extending from inside of the cell area to an area outside the cell area, and lower layer wirings in a lower layer than the linear wirings in the boundary area and electrically connected to the linear wirings, and wiring widths of the lower layer wirings being larger than widths of the linear wirings, the peripheral circuit area including a patterns electrically connected to the linear wirings via the lower layer wirings, the boundary area failing to be provided with the linear wirings and a wiring in same layer as the linear wirings.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: April 20, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Sakuma, Takuya Futatsuyama
  • Publication number: 20100084770
    Abstract: A semiconductor memory device includes: a first dielectric formed on top of a semiconductor substrate; a contact plug embedded in the first dielectric; a second dielectric formed on top of the first interlayer dielectric; an interconnection layer embedded in a groove formed in the second dielectric on top of the contact plug; and an insulating film formed in the second dielectric adjacent to a side surface of the interconnection layer. The contact plug has a notch in a part of a top surface of the contact plug. The insulating film is formed to extend from a top surface of the second dielectric to the notch included in the contact plug.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 8, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: MAKOTO SAKUMA, Yasushi Kumagai
  • Patent number: 7679108
    Abstract: A semiconductor memory includes a plurality of active regions; a plurality of bit line contacts disposed on respective active regions; a plurality of first local lines formed in an island shape and in contact with upper surfaces of the plurality of bit line contacts; a plurality of first via contacts in contact with the upper surfaces of the plurality of first local lines and aligned in a direction parallel to the active regions; a first bit line in contact with one of the plurality of first via contacts and extending in a direction parallel to the active regions; and a plurality of second via contacts arranged above the first via contacts that are not in contact with the first bit line through respective second local lines.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: March 16, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiko Matsunaga, Fumitaka Arai, Makoto Sakuma
  • Patent number: 7649221
    Abstract: A nonvolatile semiconductor memory includes a plurality of memory cell transistors configured with a first floating gate, a first control gate, and a first inter-gate insulating film each arranged between the first floating gate and the first control gate, respectively, and which are aligned along a bit line direction; device isolating regions disposed at a constant pitch along a word line direction making a striped pattern along the bit line direction; and select gate transistors disposed at each end of the alignment of the memory cell transistors, each configured with a second floating gate, a second control gate, a second inter-gate insulator film disposed between the second floating gate and the second control gate, and a sidewall gate electrically connected to the second floating gate and the second control gate.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: January 19, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Sakuma, Atsuhiro Sato
  • Publication number: 20090242960
    Abstract: A semiconductor memory device includes a semiconductor substrate, a memory cell provided on the semiconductor substrate and having a stacked gate structure formed by sequentially stacking a tunnel insulation film, a charge storage layer, a block insulation film, and a control gate electrode, a first transistor having a first gate electrode provided on the semiconductor substrate via a gate insulation film, and a resistor element provided on the semiconductor substrate and formed of polysilicon. The control gate electrode is entirely formed of a silicide layer. An upper portion of the first gate electrode partially includes a silicide layer.
    Type: Application
    Filed: March 19, 2009
    Publication date: October 1, 2009
    Inventor: Makoto SAKUMA
  • Patent number: 7586786
    Abstract: A method of reading out data from nonvolatile semiconductor memory including the steps of applying a first voltage to a bit line contact; applying a second voltage to a source line contact, wherein the second voltage is substantially smaller than the first voltage; applying a third voltage gates of third and fourth select gate transistors, the third voltage configured to bring the third and fourth select gate transistors into conduction; applying a fourth voltage to gates of the plurality of memory cell transistors of a second memory cell unit, the fourth voltage configured to bring the plurality of memory cell transistors of the second memory cell unit into conduction or not, depending on the data that is stored in the memory cell unit; and applying a fifth voltage to gates of the plurality of memory cell transistors of a first memory cell unit, the fifth voltage configured to bring the plurality of memory cell transistors of the first memory cell unit into conduction; wherein the fifth voltage is bigger tha
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: September 8, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiko Matsunaga, Fumitaka Arai, Makoto Sakuma, Tadashi Iguchi, Hisashi Watanobe, Hiroaki Tsunoda
  • Publication number: 20090209733
    Abstract: A therapeutic agent for rheumatoid arthritis, particularly a therapeutic agent for ameliorating an inflammatory symptom or bone deformity in rheumatoid arthritis, which comprises an antibody that binds to a hepatocyte growth factor receptor as an active ingredient.
    Type: Application
    Filed: March 20, 2007
    Publication date: August 20, 2009
    Applicant: Seikagaku Corporation
    Inventors: Akira Otsuka, Makoto Sakuma
  • Patent number: 7560320
    Abstract: A nonvolatile semiconductor memory includes a plurality of memory cell transistors configured with a first floating gate, a first control gate, and a first inter-gate insulating film each arranged between the first floating gate and the first control gate, respectively, and which are aligned along a bit line direction; device isolating regions disposed at a constant pitch along a word line direction making a striped pattern along the bit line direction; and select gate transistors disposed at each end of the alignment of the memory cell transistors, each configured with a second floating gate, a second control gate, a second inter-gate insulator film disposed between the second floating gate and the second control gate, and a sidewall gate electrically connected to the second floating gate and the second control gate.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: July 14, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Sakuma, Atsuhiro Sato
  • Patent number: 7541654
    Abstract: In a memory cell array are arranged a plurality of cell units having memory cells and selection gate transistors to select the memory cell. A first selection gate line includes a control gate of the selection gate transistors. A second selection gate line is formed above the first selection gate line. The first selection gate line has a first gate electrode, a first inter-gate insulating film and a second gate electrode superimposed in this order. The first inter-gate insulating film has a first opening portion through which the first gate electrode and the second gate electrode come into contact with each other. A contact material is formed on the first selection gate line, and electrically connects the first selection gate line and the second selection gate line with each other. The contact material is arranged on the first selection gate line on which the first opening portion is not arranged.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: June 2, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Fumitaka Arai, Makoto Sakuma