Patents by Inventor Koji Yamamuro

Koji Yamamuro 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: 11938729
    Abstract: A liquid ejection head includes a base plate and at least two device chips in which ejection ports for ejecting a liquid are formed and which are disposed on the base plate. At least one first reference mark is provided on the base plate. A second reference mark is provided on each of the device chips. At least one space is formed between adjacent device chips. The second reference marks and the first reference mark present in the space are disposed on an array axis along which the device chips are arrayed.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: March 26, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Asai, Koji Sasaki, Jun Yamamuro, Shingo Nagata
  • Publication number: 20240092080
    Abstract: A liquid ejection head includes a base plate and at least two device chips in which ejection ports for ejecting a liquid are formed and which are disposed on the base plate. At least one first reference mark is provided on the base plate. A second reference mark is provided on each of the device chips. At least one space is formed between adjacent device chips. The second reference marks and the first reference mark present in the space are disposed on an array axis along which the device chips are arrayed.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 21, 2024
    Inventors: Kazuhiro Asai, Koji Sasaki, Jun Yamamuro, Shingo Nagata
  • Publication number: 20240083167
    Abstract: A liquid ejection head includes a base plate and at least two device chips in which ejection ports for ejecting a liquid are formed and which are disposed on the base plate. At least one first reference mark is provided on the base plate. A second reference mark is provided on each of the device chips. At least one space is formed between adjacent device chips. The second reference marks and the first reference mark present in the space are disposed on an array axis along which the device chips are arrayed.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Inventors: Kazuhiro Asai, Koji Sasaki, Jun Yamamuro, Shingo Nagata
  • Patent number: 9884504
    Abstract: A rear face side substrate for a thermal transfer image-receiving sheet has a first rear face side layer, a second rear face side layer, and a third rear face side layer layered in this order, wherein the first rear face side layer comprises a propylene-based polymer composition A containing at least a propylene-based polymer, the second rear face side layer comprises a propylene-based polymer composition B containing at least a propylene polymer, an antistatic agent and a masking agent, and the third rear face side layer comprises a propylene-based polymer composition (C) containing at least a propylene-based polymer, a three-dimensional center surface average roughness (SRa) of the third rear face side layer being in the range of 0.10 ?m to 1.50 ?m, and the first rear face side layer, the second rear face side layer and the third rear face side layer being biaxially oriented.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: February 6, 2018
    Assignees: Dai Nippon Printing Co., Ltd., Mitsui Chemicals Tohcello, Inc.
    Inventors: Masayuki Tani, Koji Yamamuro, Shinji Kometani, Hiroshi Honda, Tetsuji Tenma
  • Publication number: 20160303884
    Abstract: A rear face side substrate for a thermal transfer image-receiving sheet has a first rear face side layer, a second rear face side layer, and a third rear face side layer layered in this order, wherein the first rear face side layer comprises a propylene-based polymer composition A containing at least a propylene-based polymer, the second rear face side layer comprises a propylene-based polymer composition B containing at least a propylene polymer, an antistatic agent and a masking agent, and the third rear face side layer comprises a propylene-based polymer composition (C) containing at least a propylene-based polymer, a three-dimensional center surface average roughness (SRa) of the third rear face side layer being in the range of 0.10 ?m to 1.50 ?m, and the first rear face side layer, the second rear face side layer and the third rear face side layer being biaxially oriented.
    Type: Application
    Filed: December 9, 2014
    Publication date: October 20, 2016
    Applicants: Dai Nippon Printing Co., Ltd., Mitsui Chemicals Tohcello, Inc.
    Inventors: Masayuki TANI, Koji YAMAMURO, Shinji KOMETANI, Hiroshi HONDA, Tetsuji TENMA
  • Patent number: 9290007
    Abstract: The present invention is to provide a thermal transfer image receiving sheet which is able to provide excellent printing sensitivity and prevent the generation of poor image quality in high density areas and folded lines even during high speed printing, and an image forming method for forming an image on the thermal transfer image receiving sheet. Presented is a thermal transfer image receiving sheet containing a substrate and, on at least one surface of the substrate, a composite porous layer containing a thermoplastic resin, and a dye receiving layer in this order from the substrate, wherein the composite porous layer contains a porous core layer and non-porous skin layers layered on both surfaces of the porous core layer; a total thickness of the non-porous skin layers is 5 to 15% of a whole thickness of the composite porous layer; and a density of the composite porous layer is 0.65 to 0.74 g/cm3.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: March 22, 2016
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Koji Yamamuro, Masayuki Tani, Shinji Kometani
  • Publication number: 20150367651
    Abstract: The present invention is to provide a thermal transfer image receiving sheet which is able to provide excellent printing sensitivity and prevent the generation of poor image quality in high density areas and folded lines even during high speed printing, and an image forming method for forming an image on the thermal transfer image receiving sheet. Presented is a thermal transfer image receiving sheet containing a substrate and, on at least one surface of the substrate, a composite porous layer containing a thermoplastic resin, and a dye receiving layer in this order from the substrate, wherein the composite porous layer contains a porous core layer and non-porous skin layers layered on both surfaces of the porous core layer; a total thickness of the non-porous skin layers is 5 to 15% of a whole thickness of the composite porous layer; and a density of the composite porous layer is 0.65 to 0.74 g/cm3.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 24, 2015
    Inventors: Koji YAMAMURO, Masayuki TANI, Shinji KOMETANI
  • Patent number: 9040453
    Abstract: Disclosed is a thermal transfer image-receiving sheet which excels in adhesiveness to a receiving layer and solvent resistance, and a manufacturing method thereof. In the thermal transfer image-receiving sheet, which includes a porous layer, a barrier layer, a receiving layer which are stacked in this order on a substrate, the porous layer includes a binder resin and hollow particles, and the barrier layer includes (i) (A) a first acrylic resin and (B) one or more kinds of resins selected from the group consisting of polyester resins, polyvinyl pyrrolidone type resins, polyester type urethane resin, and a second acrylic resin which differs from the first acrylic resin; or (ii) a polyvinyl pyrrolidone type resin.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: May 26, 2015
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Koji Yamamuro, Katsuyuki Hirano
  • Publication number: 20130344261
    Abstract: Disclosed is a thermal transfer image-receiving sheet which excels in adhesiveness to a receiving layer and solvent resistance, and a manufacturing method thereof. In the thermal transfer image-receiving sheet, which includes a porous layer, a barrier layer, a receiving layer which are stacked in this order on a substrate, the porous layer includes a binder resin and hollow particles, and the barrier layer includes (i) (A) a first acrylic resin and (B) one or more kinds of resins selected from the group consisting of polyester resins, polyvinyl pyrrolidone type resins, polyester type urethane resin, and a second acrylic resin which differs from the first acrylic resin; or (ii) a polyvinyl pyrrolidone type resin.
    Type: Application
    Filed: March 1, 2012
    Publication date: December 26, 2013
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Koji Yamamuro, Katsuyuki Hirano