Patents by Inventor Seiji Takagi

Seiji Takagi 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: 11920015
    Abstract: To provide an expansion molded product not only excellent in sound absorption properties and rigidity but also resistant to tearing after bending deformation, and a web and a stampable sheet suitable for producing the expansion molded product. The presently disclosed web, stampable sheet, and expansion molded product contain a reinforcing fiber containing an inorganic fiber and an organic fiber, a thermoplastic resin, and a thermal expandable particle, where the proportion of the reinforcing fiber is 20 mass % or more and 55 mass % or less based on a total amount of the reinforcing fiber and the thermoplastic resin, the proportion of the organic fiber is 25 mass % or more and 77 mass % or less based on a total amount of the organic and inorganic fibers, the reinforcing fiber has an average length of 8 mm or more, and the organic fiber has a breaking elongation of 15% or more.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: March 5, 2024
    Assignees: K-PLASHEET CORPORATION, TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yutaka Araki, Seiji Hanatani, Tadaaki Yasumi, Tsutomu Takagi, Atsuhiro Hattori
  • Publication number: 20230295467
    Abstract: An epoxy adhesive that includes an epoxy resin (A) and a curing agent (B), with the epoxy resin (A) including a bisphenol-A epoxy resin (A1), a bisphenol-F epoxy resin (A2) and a rubber-modified epoxy resin (A3). The content ratio [(A1)/(A2)] of the bisphenol-A epoxy resin (A1) to the bisphenol-F epoxy resin (A2) is less than 2.7.
    Type: Application
    Filed: May 25, 2023
    Publication date: September 21, 2023
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Seiji TAKAGI, Masashi IKEDA
  • Patent number: 11723224
    Abstract: An imaging apparatus includes a first electrode, a second electrode, and a photoelectric conversion layer located between the first electrode and the second electrode. The photoelectric conversion layer contains a first material, a second material, and a third material. The first material is a fullerene or a fullerene derivative. The second material is a donor-like organic semiconductor material. The average absorption coefficient in the visible light wavelength range of the third material is less than the average absorption coefficient in the visible light wavelength range of the first material.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: August 8, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tatsunori Momose, Hiroaki Iijima, Masumi Izuchi, Seiji Takagi
  • Publication number: 20220298397
    Abstract: A laminate produced by laminating a plurality of materials having different linear expansion coefficients via an adhesive agent and is less liable to warp after the adhesive agent is heat-cured. The laminate has a structure including a first material, an adhesive agent layer, and a second material. The first material and the second material have different linear expansion coefficients, and the adhesive agent layer contains an adhesive agent having a warpage reduction index of not less than 30 as calculated from the following expression (1): Warpage reduction index=100?(WA/WB)×100??(1).
    Type: Application
    Filed: June 9, 2022
    Publication date: September 22, 2022
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masashi IKEDA, Seiji TAKAGI, Toru SEO, Jun MATSUI
  • Publication number: 20210335889
    Abstract: An imaging apparatus includes a first electrode, a second electrode, and a photoelectric conversion layer located between the first electrode and the second electrode. The photoelectric conversion layer contains a first material, a second material, and a third material. The first material is a fullerene or a fullerene derivative. The second material is a donor-like organic semiconductor material. The average absorption coefficient in the visible light wavelength range of the third material is less than the average absorption coefficient in the visible light wavelength range of the first material.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 28, 2021
    Inventors: TATSUNORI MOMOSE, HIROAKI IIJIMA, MASUMI IZUCHI, SEIJI TAKAGI
  • Patent number: 10484794
    Abstract: A loudspeaker diaphragm includes resin and hollow glass member particles contained in the resin. Further, a loudspeaker includes the above-described loudspeaker diaphragm, a magnetic circuit, a frame connected to the magnetic circuit, and a voice coil body having one end connected to the loudspeaker diaphragm and the other end disposed inside a magnetic gap in the magnetic circuit.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: November 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tetsushi Itano, Seiji Takagi, Kenji Endou, Kazuaki Nishimura, Makoto Kurozawa
  • Patent number: 10393963
    Abstract: A composition for an optical waveguide is cured into a sheet to give a cured product. A difference in light transmittance with respect to light having a wavelength of 450 nm is 15% or less between this cured product and this cured product after retention in atmosphere at 175° C. for 40 hours, the light transmittance being calculated in terms of the cured product at a thickness of 50 ?m.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: August 27, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Naoyuki Kondou, Shinji Hashimoto, Toru Nakashiba, Shingo Maeda, Seiji Takagi
  • Publication number: 20190212495
    Abstract: A composition for an optical waveguide is cured into a sheet to give a cured product. A difference in light transmittance with respect to light having a wavelength of 450 nm is 15% or less between this cured product and this cured product after retention in atmosphere at 175° C. for 40 hours, the light transmittance being calculated in terms of the cured product at a thickness of 50 ?m.
    Type: Application
    Filed: February 12, 2019
    Publication date: July 11, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Naoyuki KONDOU, Shinji HASHIMOTO, Toru NAKASHIBA, Shingo MAEDA, Seiji TAKAGI
  • Patent number: 10247883
    Abstract: A composition for an optical waveguide is cured into a sheet to give a cured product. A difference in light transmittance with respect to light having a wavelength of 450 nm is 15% or less between this cured product and this cured product after retention in atmosphere at 175° C. for 40 hours, the light transmittance being calculated in terms of the cured product at a thickness of 50 ?m.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: April 2, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD
    Inventors: Naoyuki Kondou, Shinji Hashimoto, Toru Nakashiba, Shingo Maeda, Seiji Takagi
  • Publication number: 20180339480
    Abstract: A bag making machine for manufacturing bags from an elongated film having print patterns repeatedly printed on one surface or two surfaces at a print pitch corresponding to a predetermined number of bags includes a processing unit configured to process the film for each length corresponding to the predetermined number of bags, a moving mechanism configured to move the processing unit, a shooting device, and an image processing device. The shooting device includes not less than one line sensor installed with a longitudinal direction of the line sensor extending along the widthwise direction of the film and obtains a linear image extending throughout a width of the film for each shooting operation. The image processing device sequentially receives the linear images from the shooting device and detects the actual length of the predetermined number of bags of the film based on an image extending throughout the width of the film.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 29, 2018
    Applicants: New IWASHO CO., LTD., DAC ENGINEERING CO., LTD.
    Inventors: Shinji Yanagisawa, Hiroshi Takamatsu, Masayuki Yamao, Minoru Hibino, Naoki Kaneko, Yoshitaka Hikami, Atsuto Tamada, Hiromi Okamoto, Seiji Takagi
  • Publication number: 20180324526
    Abstract: A loudspeaker diaphragm includes resin and hollow glass member particles contained in the resin. Further, a loudspeaker includes the above-described loudspeaker diaphragm, a magnetic circuit, a frame connected to the magnetic circuit, and a voice coil body having one end connected to the loudspeaker diaphragm and the other end disposed inside a magnetic gap in the magnetic circuit.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 8, 2018
    Inventors: TETSUSHI ITANO, SEIJI TAKAGI, KENJI ENDOU, KAZUAKI NISHIMURA, MAKOTO KUROZAWA
  • Publication number: 20180224604
    Abstract: A composition for an optical waveguide is cured into a sheet to give a cured product. A difference in light transmittance with respect to light having a wavelength of 450 nm is 15% or less between this cured product and this cured product after retention in atmosphere at 175° C. for 40 hours, the light transmittance being calculated in terms of the cured product at a thickness of 50 ?m.
    Type: Application
    Filed: August 23, 2016
    Publication date: August 9, 2018
    Inventors: NAOYUKI KONDOU, SHINJI HASHIMOTO, TORU NAKASHIBA, SHINGO MAEDA, SEIJI TAKAGI
  • Patent number: 8780528
    Abstract: An electrolyte includes an organic solvent, a solute and a compound represented by chemical formula [1], both contained in the organic solvent. R1 and R2 represent a methyl group or an ethyl group; R3 represents a functional group having a straight chain including three or more carbon atoms and a hydroxyl group bonded to a terminal carbon; C represents a carbon atom; H represents a hydrogen atom; O represents an oxygen atom; and N represents a nitrogen atom.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: July 15, 2014
    Assignee: Panasonic Corporation
    Inventors: Seiji Takagi, Hideki Shimamoto, Hiroyuki Maeshima, Nao Matsumura
  • Patent number: 8717260
    Abstract: An EL display panel 10 including an EL substrate 11 and a CF 12 facing each other and resin 1221 filling space between the EL substrate 11 and the CF 12. A common bank 112 having a greater width than banks between first, second, and third areas in each portion of the CF 12 lies between two portions corresponding to a first pixel and an adjacent second pixel. A portion of a CF layer 113 formed with respect to an outermost area among areas of the first pixel that covers a top surface of a bank closest to the second pixel extends towards the second pixel and overlaps a portion of a CF layer formed with respect to an area adjacent to the first pixel among areas of the second pixel that covers a top surface of a bank closest to the first pixel.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: May 6, 2014
    Assignee: Panasonic Corporation
    Inventor: Seiji Takagi
  • Publication number: 20140085774
    Abstract: An electrolyte includes an organic solvent, a solute and a compound represented by chemical formula [1], both contained in the organic solvent. R1 and R2 represent a methyl group or an ethyl group; R3 represents a functional group having a straight chain including three or more carbon atoms and a hydroxyl group bonded to a terminal carbon; C represents a carbon atom; H represents a hydrogen atom; 0 represents an oxygen atom; and N represents a nitrogen atom.
    Type: Application
    Filed: June 25, 2012
    Publication date: March 27, 2014
    Inventors: Seiji Takagi, Hideki Shimamoto, Hiroyuki Matsumura, Nao Matsumura
  • Patent number: 8350471
    Abstract: An EL display panel including an EL substrate and a CF facing each other and resin filling space between the EL substrate and the CF. A common bank having a greater width than banks between first, second, and third areas in each portion of the CF lies between two portions corresponding to a first pixel and an adjacent second pixel. A portion of a CF layer formed with respect to an outermost area among the areas of the first pixel and covering a top surface of a bank closest to the second pixel extends towards the second pixel and has a greater length than a portion of the CF layer formed with respect to the outermost area that covers a top surface of a bank opposing the bank closest to the second pixel.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: January 8, 2013
    Assignee: Panasonic Corporation
    Inventor: Seiji Takagi
  • Publication number: 20120206066
    Abstract: An EL display panel 10 including an EL substrate 11 and a CF 12 facing each other and resin 1221 filling space between the EL substrate 11 and the CF 12. A common bank 112 having a greater width than banks between first, second, and third areas in each portion of the CF 12 lies between two portions corresponding to a first pixel and an adjacent second pixel. A portion of a CF layer 113 formed with respect to an outermost area among areas of the first pixel that covers a top surface of a bank closest to the second pixel extends towards the second pixel and overlaps a portion of a CF layer formed with respect to an area adjacent to the first pixel among areas of the second pixel that covers a top surface of a bank closest to the first pixel.
    Type: Application
    Filed: April 25, 2012
    Publication date: August 16, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Seiji TAKAGI
  • Patent number: 8242687
    Abstract: An object of the present invention is to provide an organic EL display that enables accurate measurement of the thickness of a transparent resin in an effective pixel area. The organic EL display of the present invention has a structure in which an organic EL device (21) having a plurality of partitions (25) placed at intervals in a predetermined direction and an organic light emitting layer (26) provided between the adjacent partitions (25), and a color filter (22) having a black matrix (29) and a pigment layer (30) placed in each of frames of the black matrix (29) are bonded via a transparent resin (31), and a light transmissive opening (33) is provided in a section of the black matrix (29) other than a section facing the partition (25).
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: August 14, 2012
    Assignee: Panasonic Corporation
    Inventors: Kunimichi Kanatani, Seiji Takagi
  • Publication number: 20120200222
    Abstract: An EL display panel including an EL substrate and a CF facing each other and resin filling space between the EL substrate and the CF. A common bank having a greater width than banks between first, second, and third areas in each portion of the CF lies between two portions corresponding to a first pixel and an adjacent second pixel. A portion of a CF layer formed with respect to an outermost area among the areas of the first pixel and covering a top surface of a bank closest to the second pixel extends towards the second pixel and has a greater length than a portion of the CF layer formed with respect to the outermost area that covers a top surface of a bank opposing the bank closest to the second pixel.
    Type: Application
    Filed: April 16, 2012
    Publication date: August 9, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Seiji TAKAGI
  • Patent number: 8154854
    Abstract: A solid electrolytic capacitor includes a positive electrode foil made of metal, a dielectric oxide layer provided on a surface of the positive electrode foil, a separator provided on the dielectric oxide layer, a solid electrolyte layer made of conductive polymer impregnated in the separator, a negative electrode foil facing the dielectric oxide layer across the solid electrolyte layer, and a phosphate provided on the dielectric oxide layer. This solid electrolytic capacitor reduces a leakage current.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: April 10, 2012
    Assignee: Panasonic Corporation
    Inventors: Ayumi Kochi, Seiji Takagi, Shigetaka Furusawa, Hiroyuki Matsuura, Tatsuji Aoyama, Yukiya Shimoyama