Patents by Inventor Masaharu Myoi

Masaharu Myoi 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: 10283728
    Abstract: There is provided a high gloss electrodeposited copper foil which can be manufactured in a short time. The electrodeposited copper foil has a fraction of the areas occupied by the {100} plane deviating by 18° or less from the <001> crystal orientation of 10% or more determined by analysis of the surface by electron backscatter diffraction (EBSD) and at least one surface of the electrodeposited copper foil has a glossiness Gs (20°) of 1,500 or more, determined in accordance with JIS Z 8741-1997.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 7, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yoshinori Matsuura, Toshimi Nakamura, Masaharu Myoi, Hajime Watanabe
  • Patent number: 9786404
    Abstract: There is provided a metal foil suitable for an electrode substrate for an electronic element, which makes it possible to suppress oxidation of the ultra-smooth surface and also prevent roll scratches when wound in a roll. The metal foil of the present invention is made of copper or copper alloy. The front surface of the metal foil has an ultra-smooth surface profile having an arithmetic mean roughness Ra of 30 nm or less as determined in accordance with JIS B 0601-2001. The back surface of the metal has a concave-dominant surface profile having a Pv/Pp ratio of 1.5 or more, the Pv/Pp ratio being a ratio of a maximum profile valley depth Pv to a maximum profile peak height Pp of a profile curve as determined in a rectangular area of 181 ?m by 136 ?m in accordance with JIS B 0601-2001.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: October 10, 2017
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi
  • Patent number: 9508951
    Abstract: There is provided an electrode foil that can form an organic electroluminescent device having a high external quantum efficiency despite the presence of the organic nitrogen compound at the interface of a metal foil and a reflective layer. The electrode foil of the invention includes a metal foil made of copper or copper alloy and a reflective layer provided on at least one surface of the metal foil. The electrode foil has an organic nitrogen compound at the interface between the metal foil and the reflective layer in such an amount that the ratio of the number of counts on the C—N bond to the total number of counts on the copper and the C—N bond: CN/(CN+Cu) in the organic nitrogen compound is 0.4 or less determined by time-of-flight secondary ion mass spectrometric analysis (TOF-SIMS) of the interface.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: November 29, 2016
    Assignees: Mitsui Mining & Smelting Co., Ltd., Panasonic Corporation
    Inventors: Yoshinori Matsuura, Toshimi Nakamura, Masaharu Myoi, Nozomu Kitajima, Mitsuo Yaguchi
  • Publication number: 20160285030
    Abstract: There is provided a high gloss electrodeposited copper foil which can be manufactured in a short time.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 29, 2016
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yoshinori MATSUURA, Toshimi NAKAMURA, Masaharu MYOI, Hajime WATANABE
  • Publication number: 20150207096
    Abstract: There is provided an electrode foil that can form an organic electroluminescent device having a high external quantum efficiency despite the presence of the organic nitrogen compound at the interface of a metal foil and a reflective layer. The electrode foil of the invention includes a metal foil made of copper or copper alloy and a reflective layer provided on at least one surface of the metal foil. The electrode foil has an organic nitrogen compound at the interface between the metal foil and the reflective layer in such an amount that the ratio of the number of counts on the C—N bond to the total number of counts on the copper and the C—N bond: CN/(CN+Cu) in the organic nitrogen compound is 0.4 or less determined by time-of-flight secondary ion mass spectrometric analysis (TOF-SIMS) of the interface.
    Type: Application
    Filed: June 7, 2013
    Publication date: July 23, 2015
    Inventors: Yoshinori Matsuura, Toshimi Nakamura, Masaharu Myoi, Nozomu Kitajima, Mitsuo Yaguchi
  • Publication number: 20150194232
    Abstract: There is provided a metal foil suitable for an electrode substrate for an electronic element, which makes it possible to suppress oxidation of the ultra-smooth surface and also prevent roll scratches when wound in a roll. The metal foil of the present invention is made of copper or copper alloy. The front surface of the metal foil has an ultra-smooth surface profile having an arithmetic mean roughness Ra of 30 nm or less as determined in accordance with JIS B 0601-2001. The back surface of the metal has a concave-dominant surface profile having a Pv/Pp ratio of 1.5 or more, the Pv/Pp ratio being a ratio of a maximum profile valley depth Pv to a maximum profile peak height Pp of a profile curve as determined in a rectangular area of 181 ?m by 136 ?m in accordance with JIS B 0601-2001.
    Type: Application
    Filed: April 24, 2013
    Publication date: July 9, 2015
    Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi
  • Patent number: 9029885
    Abstract: There is provided an electrode foil, which can show superior light scattering, while preventing short circuit between electrodes. The electrode foil of the present invention comprises a metal foil having a thickness of from 1 ?m to 250 ?m, wherein the electrode foil comprises, on at least one outermost surface thereof, a light-scattering surface having a Pv/Pp ratio of 2.0 or higher, wherein the Pv/Pp ratio is a ratio of a maximum profile valley depth Pv of a profile curve to a maximum profile peak height Pp of the profile curve as measured in a rectangular area of 181 ?m×136 ?m in accordance with JIS B 0601-2001.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: May 12, 2015
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi
  • Publication number: 20150001519
    Abstract: An electrode foil functioning as both a supporting substrate and an electrode and suitable for low-cost high-efficiency production of flexible electronic devices having functionality on their both sides is provided. An electrode foil of the present invention comprises a metal foil, wherein the metal foil has a thickness of 1 to 250 ?m, and wherein the outermost surfaces on both sides of the electrode foil are ultra-smooth surfaces each having an arithmetic mean roughness Ra of 30.0 nm or less as determined in accordance with JIS B 0601-2001.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 1, 2015
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi
  • Publication number: 20140061701
    Abstract: There is provided an electrode foil, which can show superior light scattering, while preventing short circuit between electrodes. The electrode foil of the present invention comprises a metal foil having a thickness of from 1 ?m to 250 ?m, wherein the electrode foil comprises, on at least one outermost surface thereof, a light-scattering surface having a Pv/Pp ratio of 2.0 or higher, wherein the Pv/Pp ratio is a ratio of a maximum profile valley depth Pv of a profile curve to a maximum profile peak height Pp of the profile curve as measured in a rectangular area of 181 ?m×136 ?m in accordance with JIS B 0601-2001.
    Type: Application
    Filed: December 26, 2012
    Publication date: March 6, 2014
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi