Patents by Inventor Miki Niwa

Miki Niwa 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: 9018664
    Abstract: An object of the invention is to provide a method for producing a conductive member having low electrical resistance, and the conductive member is obtained using a low-cost stable conductive material composition that does not contain an adhesive. A method for producing a semiconductor device in which silver or silver oxide provided on a surface of a base and silver or silver oxide provided on a surface of a semiconductor element are bonded, includes the steps of arranging a semiconductor element on a base such that silver or silver oxide provided on a surface of the semiconductor element is in contact with silver or silver oxide provided on a surface of the base, temporarily bonding the semiconductor element and the base by applying a pressure or an ultrasonic vibration to the semiconductor element or the base, and permanently bonding the semiconductor element and the base by applying heat having a temperature of 150 to 900° C. to the semiconductor device and the base.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: April 28, 2015
    Assignee: Nichia Corporation
    Inventors: Masafumi Kuramoto, Satoru Ogawa, Miki Niwa
  • Patent number: 9011728
    Abstract: The object of the present invention is to provide a method for producing a conductive material that has a low electric resistivity and that is obtained using an inexpensive and stable conductive material composition. A conductive material having a low electric resistivity can be obtained by a method including the step of heating a conductive material composition that contains at least one of a full-cured or semi-cured thermosetting resin and a thermoplastic resin, as well as silver particles. Such a conductive material is a conductive material that includes fused silver particles, and thermosetting resin fine particles that have an average particle diameter of 0.1 ?m to 10 ?m both inclusive and are dispersed in the fused silver particles. Further, in such a conductive material is a conductive material that includes fused silver particles, and a thermoplastic resin welded among the fused silver particles.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: April 21, 2015
    Assignee: Nichia Corporation
    Inventors: Masafumi Kuramoto, Satoru Ogawa, Miki Niwa, Katsuaki Suganuma, Keun-Soo Kim
  • Patent number: 8927341
    Abstract: An object of the invention is to provide a method for producing a conductive member having low electrical resistance, and the conductive member is obtained using a low-cost stable conductive material composition that does not contain an adhesive. A method for producing a semiconductor device in which silver or silver oxide provided on a surface of a base and silver or silver oxide provided on a surface of a semiconductor element are bonded, includes the steps of arranging a semiconductor element on a base such that silver or silver oxide provided on a surface of the semiconductor element is in contact with silver or silver oxide provided on a surface of the base, and bonding the semiconductor element and the base by applying heat having a temperature of 200 to 900° C. to the semiconductor device and the base.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: January 6, 2015
    Assignee: Nichia Corporation
    Inventors: Masafumi Kuramoto, Satoru Ogawa, Miki Niwa
  • Patent number: 8809218
    Abstract: There is provided a substance having much higher catalytic activity for a Suzuki-Miyaura coupling reaction than conventional heterogenous catalysts. The present invention provides a zeolite-palladium complex including USY-zeolite and Pd supported on the USY-zeolite, the Pd having a Pd—Pd coordination number of 4 or less and an oxidation number of 0.5 or less.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: August 19, 2014
    Assignee: National University Corporation Tottori University
    Inventors: Kazu Okumura, Miki Niwa, Hirosuke Matsui, Yoshinori Enmi, Takuya Tomiyama, Shizuyo Okuda
  • Publication number: 20140141550
    Abstract: An object of the invention is to provide a method for producing a conductive member having low electrical resistance, and the conductive member is obtained using a low-cost stable conductive material composition that does not contain an adhesive. A method for producing a semiconductor device in which silver or silver oxide provided on a surface of a base and silver or silver oxide provided on a surface of a semiconductor element are bonded, includes the steps of arranging a semiconductor element on a base such that silver or silver oxide provided on a surface of the semiconductor element is in contact with silver or silver oxide provided on a surface of the base, and bonding the semiconductor element and the base by applying heat having a temperature of 200 to 900° C. to the semiconductor device and the base.
    Type: Application
    Filed: January 28, 2014
    Publication date: May 22, 2014
    Applicant: NICHIA CORPORATION
    Inventors: Masafumi KURAMOTO, Satoru OGAWA, Miki NIWA
  • Publication number: 20140110740
    Abstract: An object of the invention is to provide a method for producing a conductive member having low electrical resistance, and the conductive member is obtained using a low-cost stable conductive material composition that does not contain an adhesive. A method for producing a semiconductor device in which silver or silver oxide provided on a surface of a base and silver or silver oxide provided on a surface of a semiconductor element are bonded, includes the steps of arranging a semiconductor element on a base such that silver or silver oxide provided on a surface of the semiconductor element is in contact with silver or silver oxide provided on a surface of the base, temporarily bonding the semiconductor element and the base by applying a pressure or an ultrasonic vibration to the semiconductor element or the base, and permanently bonding the semiconductor element and the base by applying heat having a temperature of 150 to 900° C. to the semiconductor device and the base.
    Type: Application
    Filed: December 30, 2013
    Publication date: April 24, 2014
    Applicant: Nichia Corporation
    Inventors: Masafumi KURAMOTO, Satoru OGAWA, Miki NIWA
  • Patent number: 8679898
    Abstract: An object of the invention is to provide a method for producing a conductive member having low electrical resistance, and the conductive member is obtained using a low-cost stable conductive material composition that does not contain an adhesive. A method for producing a semiconductor device in which silver or silver oxide provided on a surface of a base and silver or silver oxide provided on a surface of a semiconductor element are bonded, includes the steps of arranging a semiconductor element on a base such that silver or silver oxide provided on a surface of the semiconductor element is in contact with silver or silver oxide provided on a surface of the base, and bonding the semiconductor element and the base by applying heat having a temperature of 200 to 900° C. to the semiconductor device and the base.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: March 25, 2014
    Assignee: Nichia Corporation
    Inventors: Masafumi Kuramoto, Satoru Ogawa, Miki Niwa
  • Patent number: 8642392
    Abstract: An object of the invention is to provide a method for producing a conductive member having low electrical resistance, and the conductive member is obtained using a low-cost stable conductive material composition that does not contain an adhesive. A method for producing a semiconductor device in which silver or silver oxide provided on a surface of a base and silver or silver oxide provided on a surface of a semiconductor element are bonded, includes the steps of arranging a semiconductor element on a base such that silver or silver oxide provided on a surface of the semiconductor element is in contact with silver or silver oxide provided on a surface of the base, temporarily bonding the semiconductor element and the base by applying a pressure or an ultrasonic vibration to the semiconductor element or the base, and permanently bonding the semiconductor element and the base by applying heat having a temperature of 150 to 900° C. to the semiconductor device and the base.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: February 4, 2014
    Assignee: Nichia Corporation
    Inventors: Masafumi Kuramoto, Satoru Ogawa, Miki Niwa
  • Publication number: 20120059191
    Abstract: There is provided a substance having much higher catalytic activity for a Suzuki-Miyaura coupling reaction than conventional heterogenous catalysts. The present invention provides a zeolite-palladium complex including USY-zeolite and Pd supported on the USY-zeolite, the Pd having a Pd—Pd coordination number of 4 or less and an oxidation number of 0.5 or less.
    Type: Application
    Filed: February 23, 2010
    Publication date: March 8, 2012
    Inventors: Kazu Okumura, Miki Niwa, Hirosuke Matsui, Yoshinori Enmi, Takuya Tomiyama, Shizuyo Okuda
  • Publication number: 20110186340
    Abstract: The object of the present invention is to provide a method for producing a conductive material that has a low electric resistivity and that is obtained using an inexpensive and stable conductive material composition. A conductive material having a low electric resistivity can be obtained by a method including the step of heating a conductive material composition that contains at least one of a full-cured or semi-cured thermosetting resin and a thermoplastic resin, as well as silver particles. Such a conductive material is a conductive material that includes fused silver particles, and thermosetting resin fine particles that have an average particle diameter of 0.1 ?m to 10 ?m both inclusive and are dispersed in the fused silver particles. Further, in such a conductive material is a conductive material that includes fused silver particles, and a thermoplastic resin welded among the fused silver particles.
    Type: Application
    Filed: July 21, 2010
    Publication date: August 4, 2011
    Applicant: NICHIA CORPORATION
    Inventors: Masafumi Kuramoto, Satoru Ogawa, Miki Niwa, Katsuaki Suganuma, Keun-Soo Kim
  • Publication number: 20100187563
    Abstract: An object of the invention is to provide a method for producing a conductive member having low electrical resistance, and the conductive member is obtained using a low-cost stable conductive material composition that does not contain an adhesive. A method for producing a semiconductor device in which silver or silver oxide provided on a surface of a base and silver or silver oxide provided on a surface of a semiconductor element are bonded, includes the steps of arranging a semiconductor element on a base such that silver or silver oxide provided on a surface of the semiconductor element is in contact with silver or silver oxide provided on a surface of the base, temporarily bonding the semiconductor element and the base by applying a pressure or an ultrasonic vibration to the semiconductor element or the base, and permanently bonding the semiconductor element and the base by applying heat having a temperature of 150 to 900° C. to the semiconductor device and the base.
    Type: Application
    Filed: January 22, 2010
    Publication date: July 29, 2010
    Inventors: Masafumi Kuramoto, Satoru Ogawa, Miki Niwa
  • Publication number: 20100190298
    Abstract: An object of the invention is to provide a method for producing a conductive member having low electrical resistance, and the conductive member is obtained using a low-cost stable conductive material composition that does not contain an adhesive. A method for producing a semiconductor device in which silver or silver oxide provided on a surface of a base and silver or silver oxide provided on a surface of a semiconductor element are bonded, includes the steps of arranging a semiconductor element on a base such that silver or silver oxide provided on a surface of the semiconductor element is in contact with silver or silver oxide provided on a surface of the base, and bonding the semiconductor element and the base by applying heat having a temperature of 200 to 900° C. to the semiconductor device and the base.
    Type: Application
    Filed: January 22, 2010
    Publication date: July 29, 2010
    Inventors: Masafumi KURAMOTO, Satoru Ogawa, Miki Niwa
  • Patent number: 5466483
    Abstract: A method for producing a silica mask on metal oxide surface is disclosed. Benzaldehyde is adsorbed on neutral or weak alkaline metal oxide surface, and then tetra-methoxy silane is deposited. The tetra-methoxy silane is hydrolyzed by water vapor into silica and the adsorbed benzaldehyde is removed by NH3 as benzo-nitrile. Thus a silica mask is produced on the metal oxide surface, and the mask has vacancies corresponding to the removed benzaldehyde. The vacancies act as the adsorption sites for shape selective adsorption.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: November 14, 1995
    Assignees: Miki Niwa, Figaro Engineering Inc.
    Inventors: Miki Niwa, Nobuaki Kodakari, Hisato Funabiki, Naonobu Katada