Patents by Inventor Yumi Iwanari

Yumi Iwanari 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: 20160345425
    Abstract: This wiring film for a flat panel display comprises a laminate structure which is formed by laminating a first layer, which includes at least one type of high melting-point metal selected from the group consisting of Mo, Ti, Cr, W, and Ta, and a second layer, which comprises an Al alloy that includes at least 0.01 atom % but less than 0.2 atom % of at least one from among the rare earth elements, Ni, and Co. In this wiring film, even when subjected to a thermal history of high temperatures from 400-500° C., inclusive, increase in wiring resistance is suppressed, hillocks or the like do not occur, and heat resistance is excellent.
    Type: Application
    Filed: January 21, 2015
    Publication date: November 24, 2016
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroshi GOTO, Yumi IWANARI
  • Patent number: 9299474
    Abstract: There is provided an oxide for semiconductor layers of thin-film transistors, which oxide can provide thin-film transistors with excellent switching characteristics and by which oxide favorable characteristics can stably be obtained even after the formation of passivation layers. The oxide to be used for semiconductor layers of thin-film transistors according to the present invention includes Zn, Sn, and Si.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: March 29, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Shinya Morita, Aya Miki, Yumi Iwanari, Toshihiro Kugimiya, Satoshi Yasuno, Jae Woo Park, Je Hun Lee, Byung Du Ahn
  • Patent number: 8907334
    Abstract: Disclosed is an oxide for a semiconductor layer of a thin-film transistor, said oxide being excellent in the switching characteristics of a thin-film transistor, specifically enabling favorable characteristics to be stably obtained even in a region of which the ZnO concentration is high and even after forming a passivation layer and after applying stress. The oxide is used in a semiconductor layer of a thin-film transistor, and the aforementioned oxide contains Zn and Sn, and further contains at least one element selected from group X consisting of Al, Hf, Ta, Ti, Nb, Mg, Ga, and the rare-earth elements.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: December 9, 2014
    Assignees: Kobe Steel, Ltd., Samsung Display Co., Ltd.
    Inventors: Aya Miki, Yumi Iwanari, Toshihiro Kugimiya, Shinya Morita, Yasuaki Terao, Satoshi Yasuno, Jae Woo Park, Je Hun Lee, Byung Du Ahn
  • Patent number: 8558382
    Abstract: A novel interconnection structure which is excellent in adhesion and is capable of realizing low resistance and low contact resistance is provided. An interconnection structure including an interconnection film and a semiconductor layer of a thin film transistor above a substrate in this order from the side of a substrate, wherein the semiconductor layer is composed of an oxide semiconductor, is provided.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: October 15, 2013
    Assignee: Kobe Steel, Ltd.
    Inventors: Takeaki Maeda, Hiroshi Goto, Yumi Iwanari, Takayuki Hirano
  • Publication number: 20130119324
    Abstract: There is provided an oxide for semiconductor layers of thin-film transistors, which oxide can provide thin-film transistors with excellent switching characteristics and by which oxide favorable characteristics can stably be obtained even after the formation of passivation layers. The oxide to be used for semiconductor layers of thin-film transistors according to the present invention includes Zn, Sn, and Si.
    Type: Application
    Filed: July 28, 2011
    Publication date: May 16, 2013
    Applicants: Samsung Display Co., Ltd., KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
    Inventors: Shinya Morita, Aya Miki, Yumi Iwanari, Toshihiro Kugimiya, Satoshi Yasuno, Jae Woo Park, Je Hun Lee, Byung Du Ahn
  • Publication number: 20130032798
    Abstract: Disclosed is an oxide for a semiconductor layer of a thin-film transistor, said oxide being excellent in the switching characteristics of a thin-film transistor, specifically enabling favorable characteristics to be stably obtained even in a region of which the ZnO concentration is high and even after forming a passivation layer and after applying stress. The oxide is used in a semiconductor layer of a thin-film transistor, and the aforementioned oxide contains Zn and Sn, and further contains at least one element selected from group X consisting of Al, Hf, Ta, Ti, Nb, Mg, Ga, and the rare-earth elements.
    Type: Application
    Filed: April 18, 2011
    Publication date: February 7, 2013
    Applicants: SAMSUNG DISPLAY CO., LTD., KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Aya Miki, Yumi Iwanari, Toshihiro Kugimiya, Shinya Morita, Yasuaki Terao, Satoshi Yasuno, Jae Woo Park, Je Hun Lee, Byung Du Ahn
  • Publication number: 20120199866
    Abstract: Disclosed is a reflective anode electrode for an organic EL display, which comprises a novel Al-based alloy reflective film. The reflective anode electrode is capable of assuring low contact resistance and high reflectance even in cases where the Al reflective film is in direct contact with an oxide conductive film such as an ITO or IZO film. In addition, when the Al reflective film is formed into a laminated structure together with the oxide conductive film, the work function of the surface of the upper oxide conductive film is equally high with the work function of a laminated structure that is composed of a general-purpose Ag-based alloy film and an oxide conductive film. Specifically disclosed is a reflective anode electrode for an organic EL display, which is formed on a substrate and characterized by comprising a laminated structure that is composed of an Al-based alloy film containing 0.
    Type: Application
    Filed: November 16, 2010
    Publication date: August 9, 2012
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yumi Iwanari, Toshihiro Kugimiya, Takayuki Hirano, Takeaki Maeda
  • Publication number: 20120126227
    Abstract: A novel interconnection structure which is excellent in adhesion and is capable of realizing low resistance and low contact resistance is provided. An interconnection structure including an interconnection film and a semiconductor layer of a thin film transistor above a substrate in this order from the side of a substrate, wherein the semiconductor layer is composed of an oxide semiconductor, is provided.
    Type: Application
    Filed: July 27, 2010
    Publication date: May 24, 2012
    Applicant: Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
    Inventors: Takeaki Maeda, Hiroshi Goto, Yumi Iwanari, Takayuki Hirano