Patents by Inventor Yuji Koga

Yuji Koga 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: 20240332430
    Abstract: The present disclosure provides a semiconductor device. The semiconductor device includes: a bottom gate region of a first conductivity type and formed in a semiconductor layer; a top gate region of the first conductivity type and formed in a surface layer portion of a first surface of the semiconductor layer, wherein the top gate region faces the bottom gate region along a thickness direction of the semiconductor layer; a source region of a second conductivity type, formed in the surface layer portion of the first surface of the semiconductor layer and separated from the top gate region in a direction along the first surface; and a drain region of the second conductivity type, formed in the surface layer portion of the first surface of the semiconductor layer and separated from the top gate region at an opposite side of the source region in the direction along the first surface.
    Type: Application
    Filed: March 27, 2024
    Publication date: October 3, 2024
    Applicant: ROHM CO., LTD.
    Inventor: Yuji KOGA
  • Publication number: 20240288405
    Abstract: A sample vaporization unit for vaporizing a sample injected from a syringe needle while supplying a carrier gas into a column is provided with a pipe, a heat conductive member, and a heater. The column is inserted into the pipe. The heat conductive member is provided along the outer circumference of the pipe. The heater is provided along the outer circumference of the heat conductive member. The heat conductive member is in line contact with the pipe along the axial direction in which the column extends at a plurality of circumferential locations on the outer circumferential surface of the pipe.
    Type: Application
    Filed: May 31, 2021
    Publication date: August 29, 2024
    Inventors: Kiyonori KOGA, Kenichi OKUMURA, Yuji NAKAMA
  • Publication number: 20240190146
    Abstract: An image recording device is provided, having a recording unit configured to record an image on a sheet, and a tray disposed below the recording unit. The tray includes a sheet holding surface configured to hold the sheet. Additionally, the image recording device includes a sheet feeder disposed between the recording unit and the tray. The sheet feeder includes a roller for feeding the sheet from the tray. The roller is configured to move between a first roller position in which the roller contacts the sheet holding surface of the tray and a second roller position in which the roller is separated from the sheet holding surface. A return guide, disposed between the recording unit and the sheet feeder, defines a second conveying path to guide the sheet having an image recorded on one side thereof back to the feed guide. The return guide has a first opening configured to accommodate the roller of the sheet feeder when the roller is in the second roller position.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 13, 2024
    Inventors: Tetsuo ASADA, Hirotaka AOKI, Satoru NAKAKITA, Shota IIJIMA, Kenji SAMOTO, Yuji KOGA
  • Publication number: 20240170436
    Abstract: A semiconductor device includes a semiconductor layer having a first surface, an insulating layer formed at the first surface of the semiconductor layer, a Cu conductive layer formed on the insulating layer, the Cu conductive layer made of a metal mainly containing Cu, a second insulating layer formed on the insulating layer, the second insulating layer covering the Cu conductive layer, a Cu pillar extending in a thickness direction in the second insulating layer, the Cu pillar made of a metal mainly containing Cu and electrically connected to the Cu conductive layer, and an intermediate layer formed between the Cu conductive layer and the Cu pillar, the intermediate layer made of a material having a linear expansion coefficient smaller than a linear expansion coefficient of the Cu conductive layer and smaller than a linear expansion coefficient of the Cu pillar.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 23, 2024
    Applicant: ROHM CO., LTD.
    Inventors: Shoji TAKEI, Yuji KOGA
  • Patent number: 11961816
    Abstract: A semiconductor device includes a semiconductor layer having a first surface, an insulating layer formed at the first surface of the semiconductor layer, a Cu conductive layer formed on the insulating layer, the Cu conductive layer made of a metal mainly containing Cu, a second insulating layer formed on the insulating layer, the second insulating layer covering the Cu conductive layer, a Cu pillar extending in a thickness direction in the second insulating layer, the Cu pillar made of a metal mainly containing Cu and electrically connected to the Cu conductive layer, and an intermediate layer formed between the Cu conductive layer and the Cu pillar, the intermediate layer made of a material having a linear expansion coefficient smaller than a linear expansion coefficient of the Cu conductive layer and smaller than a linear expansion coefficient of the Cu pillar.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: April 16, 2024
    Assignee: ROHM CO., LTD.
    Inventors: Shoji Takei, Yuji Koga
  • Patent number: 11916034
    Abstract: A semiconductor device includes a semiconductor layer having a first surface, an insulating layer formed at the first surface of the semiconductor layer, a Cu conductive layer formed on the insulating layer, the Cu conductive layer made of a metal mainly containing Cu, a second insulating layer formed on the insulating layer, the second insulating layer covering the Cu conductive layer, a Cu pillar extending in a thickness direction in the second insulating layer, the Cu pillar made of a metal mainly containing Cu and electrically connected to the Cu conductive layer, and an intermediate layer formed between the Cu conductive layer and the Cu pillar, the intermediate layer made of a material having a linear expansion coefficient smaller than a linear expansion coefficient of the Cu conductive layer and smaller than a linear expansion coefficient of the Cu pillar.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: February 27, 2024
    Assignee: ROHM CO., LTD.
    Inventors: Shoji Takei, Yuji Koga
  • Patent number: 11890862
    Abstract: An image recording device is provided, having a recording unit configured to record an image on a sheet, and a tray disposed below the recording unit. The tray includes a sheet holding surface configured to hold the sheet. Additionally, the image recording device includes a sheet feeder disposed between the recording unit and the tray. The sheet feeder includes a roller for feeding the sheet from the tray. The roller is configured to move between a first roller position in which the roller contacts the sheet holding surface of the tray and a second roller position in which the roller is separated from the sheet holding surface. A return guide, disposed between the recording unit and the sheet feeder, defines a second conveying path to guide the sheet having an image recorded on one side thereof back to the feed guide. The return guide has a first opening configured to accommodate the roller of the sheet feeder when the roller is in the second roller position.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: February 6, 2024
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuo Asada, Hirotaka Aoki, Satoru Nakakita, Shota Iijima, Kenji Samoto, Yuji Koga
  • Publication number: 20240030450
    Abstract: Carbon black having a specific surface area of 150 m2/g or more and 400 m2/g or less, and a ratio (Lc/SSA) of a crystallite size (Le (?)) to a specific surface area (SSA (m2/g)) of 0.15 or less.
    Type: Application
    Filed: December 2, 2021
    Publication date: January 25, 2024
    Applicant: Denka Company Limited
    Inventors: Yusaku HARADA, Yuji KOGA
  • Publication number: 20240021834
    Abstract: Carbon black having a specific surface area of 150 m2/g or more and 400 m2/g or less, and a ratio (DBP/CDBP) of a DBP absorption (DBP) to a compressed DBP absorption (CDBP) of 2.0 or less.
    Type: Application
    Filed: December 2, 2021
    Publication date: January 18, 2024
    Applicant: Denka Company Limited
    Inventors: Yusaku HARADA, Yuji KOGA
  • Publication number: 20240006615
    Abstract: Carbon black having a specific surface area of 150 m2/g or more and 400 m2/g or less, and a ratio (S2/S1) of a peak area (S2) of a peak at m/z 128 to a peak area (S1) of a peak at m/z 57 detected through thermal desorption spectroscopy of less than 2.00.
    Type: Application
    Filed: December 2, 2021
    Publication date: January 4, 2024
    Applicant: Denka Company Limited
    Inventors: Yusaku HARADA, Yuji KOGA
  • Publication number: 20240002670
    Abstract: Carbon black having a specific surface area of 150 m2/g or more and 400 m2/g or less and a hydrochloric acid absorption amount of 30 mL/5 g or more, wherein, when a 3 mass % slurry is prepared using N-methyl-2-pyrrolidone as a dispersion medium, the slurry viscosity at 25° C. and a shear rate of 10 s?1 is 200 mPa·s or more and 1,200 mPa·s or less.
    Type: Application
    Filed: December 2, 2021
    Publication date: January 4, 2024
    Applicant: Denka Company Limited
    Inventors: Yusaku HARADA, Yuji KOGA
  • Publication number: 20230356528
    Abstract: There is provided an ink-jet recording apparatus which includes a recording portion, and a contact portion configured to come into contact with an upper surface of the sheet. The contact portion has a storage portion provided on a side of the recording portion and configured to store an ink, and a protruding portion is provided between both ends in a width direction intersecting the transporting direction of the storage portion, and which is protruded toward the recording section, and an upper end of the protruding portion is the highest in the contact portion.
    Type: Application
    Filed: April 10, 2023
    Publication date: November 9, 2023
    Inventors: Tsuyoshi Ito, Yuji Koga, Wataru Sugiyama, Kenji Samoto
  • Patent number: 11648776
    Abstract: There is provided an ink-jet recording apparatus which includes a recording portion, and a contact portion configured to come into contact with an upper surface of the sheet. The contact portion has a storage portion provided on a side of the recording portion and configured to store an ink, and a protruding portion provided between both ends in a width direction intersecting the transporting direction of the storage portion, and which is protruded toward the recording section, and an upper end of the protruding portion is the highest in the contact portion.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: May 16, 2023
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tsuyoshi Ito, Yuji Koga, Wataru Sugiyama, Kenji Samoto
  • Publication number: 20220344299
    Abstract: A semiconductor device includes a semiconductor layer having a first surface, an insulating layer formed at the first surface of the semiconductor layer, a Cu conductive layer formed on the insulating layer, the Cu conductive layer made of a metal mainly containing Cu, a second insulating layer formed on the insulating layer, the second insulating layer covering the Cu conductive layer, a Cu pillar extending in a thickness direction in the second insulating layer, the Cu pillar made of a metal mainly containing Cu and electrically connected to the Cu conductive layer, and an intermediate layer formed between the Cu conductive layer and the Cu pillar, the intermediate layer made of a material having a linear expansion coefficient smaller than a linear expansion coefficient of the Cu conductive layer and smaller than a linear expansion coefficient of the Cu pillar.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 27, 2022
    Applicant: ROHM CO., LTD.
    Inventors: Shoji TAKEI, Yuji KOGA
  • Publication number: 20220306411
    Abstract: An image recording device having a recording unit to record an image on a sheet is provided. The image recording unit includes a feed guide defining a first conveying path; an arm disposed between the recording unit and the tray, the arm having a feed roller rotatably disposed at a free end and configured to feed the sheet in the tray to the first conveying path. The arm pivots between a first arm position, and a second arm position. The return guide pivots between a first return guide position, and a second return guide position. A space occupied by the return guide in the first return guide position overlaps a space occupied by the arm in the second arm position. The return guide is in the second return guide position when the arm is in the second arm position which is retracted from an insertion space occupied by the tray.
    Type: Application
    Filed: February 9, 2022
    Publication date: September 29, 2022
    Inventors: Kenji SAMOTO, Yuji KOGA
  • Publication number: 20220305799
    Abstract: There is provides liquid discharging apparatus including: head having nozzle; reservoir configured to store the liquid such that liquid surface is positioned higher than opening of the nozzle in a state that the reservoir stores the liquid of maximum storable amount; and atmosphere port connecting gas layer and outside of the reservoir. Inner diameter d of the nozzle and head difference h satisfy expression of ?hd /?cos??4/g, provided that p is specific weight of the liquid, ? is surface tension of the liquid, ? is contact angle of the liquid in the nozzle and g is gravitational acceleration, the head difference h being difference in height between meniscus in the opening of the nozzle and the liquid surface in the state that the reservoir stores the liquid of the maximum storable amount.
    Type: Application
    Filed: March 25, 2022
    Publication date: September 29, 2022
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: FUMIO NAKAZAWA, YOSHINORI OSAKABE, HIROYUKI ISHIKAWA, YUJI KOGA, NAOYA OKAZAKI, AKIRA IRIGUCHI, SHINGO ITO, TOSHIO SUGIURA
  • Patent number: 11417623
    Abstract: A semiconductor device includes a semiconductor layer having a first surface, an insulating layer formed at the first surface of the semiconductor layer, a Cu conductive layer formed on the insulating layer, the Cu conductive layer made of a metal mainly containing Cu, a second insulating layer formed on the insulating layer, the second insulating layer covering the Cu conductive layer, a Cu pillar extending in a thickness direction in the second insulating layer, the Cu pillar made of a metal mainly containing Cu and electrically connected to the Cu conductive layer, and an intermediate layer formed between the Cu conductive layer and the Cu pillar, the intermediate layer made of a material having a linear expansion coefficient smaller than a linear expansion coefficient of the Cu conductive layer and smaller than a linear expansion coefficient of the Cu pillar.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: August 16, 2022
    Assignee: ROHM CO., LTD.
    Inventors: Shoji Takei, Yuji Koga
  • Publication number: 20220254692
    Abstract: Provided is a semiconductor element including a semiconductor substrate; a semiconductor layer laminated to the semiconductor substrate, and having a circuit formed within the semiconductor layer; a conductive layer disposed on an opposite side of the semiconductor layer from the semiconductor substrate and including a part electrically connected to the circuit; and a conductive portion disposed between the semiconductor layer and the conductive layer, and electrically connected to the conductive layer. The conductive layer includes a check pattern not electrically connected to the circuit, and the conductive portion includes a superimposition portion superimposed on the check pattern as viewed in a thickness direction of the semiconductor substrate.
    Type: Application
    Filed: February 4, 2022
    Publication date: August 11, 2022
    Inventor: Yuji KOGA
  • Patent number: 11345170
    Abstract: An image forming apparatus may include a mechanism for forming a corrugated shape in a sheet to be conveyed. The mechanism may include various components include one or more pressing portions, one or more ribs, one or more discharge rollers, a switching mechanism and the like. In one arrangement, ribs and pressing portions configured to create the corrugated shape may be disposed at various locations upstream or downstream of the platen, recording portion and/or nozzles thereof. In one example, pressing portions may be disposed both upstream and downstream of the nozzles of the recording portion to maintain a corrugated shape in the conveyed sheet. Various other configurations may be used.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: May 31, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tsuyoshi Ito, Yuji Koga, Wataru Sugiyama, Kenji Samoto
  • Patent number: 11279577
    Abstract: An image recording device having a recording unit to record an image on a sheet is provided. The image recording unit includes a feed guide defining a first conveying path; an arm disposed between the recording unit and the tray, the arm having a feed roller rotatably disposed at a free end and configured to feed the sheet in the tray to the first conveying path. The arm pivots between a first arm position, and a second arm position. The return guide pivots between a first return guide position, and a second return guide position. A space occupied by the return guide in the first return guide position overlaps a space occupied by the arm in the second arm position. The return guide is in the second return guide position when the arm is in the second arm position which is retracted from an insertion space occupied by the tray.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: March 22, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji Samoto, Yuji Koga