Patents by Inventor Akira Ishigami

Akira Ishigami 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: 8710662
    Abstract: A light-reflective anisotropic conductive paste is used as an anisotropic conductive paste when a light-emitting device is produced by flip-chip mounting a light-emitting element such as a light-emitting diode element (LED) on a wiring board. The light-reflective anisotropic conductive paste includes light-reflective insulating particles, in order to improve light emission efficiency without providing, in the LED, a light-reflecting layer that causes an increase in manufacturing cost. With the light-reflective anisotropic conductive paste, a reduction in bonding strength of the light-emitting element to the wiring board in a high-temperature environment can be suppressed, and a reduction in conduction reliability after a TCT can also be suppressed. In the light-reflective anisotropic conductive paste, conductive particles and the light-reflective insulating particles are dispersed in a thermosetting resin composition.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: April 29, 2014
    Assignee: Sony Corporation & Information Device Corporation
    Inventors: Hideaki Umakoshi, Hidetsugu Namiki, Akira Ishigami, Masaharu Aoki, Shiyuki Kanisawa, Yoshihisa Shinya
  • Publication number: 20130264602
    Abstract: A light-reflective anisotropic conductive adhesive used for anisotropic conductive connection of a light-emitting element to a wiring board contains a thermosetting resin composition, conductive particles, light-reflective needle-shaped insulating particles, and light-reflective spherical insulating particles. Each of the amount of the light-reflective needle-shaped insulating particles and the amount of the light-reflective spherical insulating particles in the thermosetting resin composition is 1 to 50 percent by volume based on the volume of the thermosetting resin composition, and the mixing ratio (V/V) of the light-reflective spherical insulating particles to the light-reflective needle-shaped insulating particles is 1:1 to 10. The light-reflective needle-shaped insulating particles are titanium oxide whiskers, zinc oxide whiskers, titanate whiskers, aluminum borate whiskers, or wollastonite.
    Type: Application
    Filed: February 23, 2012
    Publication date: October 10, 2013
    Applicant: DEXERIALS CORPORATION
    Inventors: Hidetsugu Namiki, Shiyuki Kanisawa, Hideaki Umakoshi, Akira Ishigami
  • Publication number: 20130092310
    Abstract: A buffer film for multi-chip packaging which does not cause out of alignment during multi-chip packaging and ensures favorable connection reliability has a structure in which a heat-resistant resin layer having a linear expansion coefficient of 80 ppm/° C. or less and a flexible resin layer made of a resin material having a Shore A hardness according to JIS K6253 of 10 to 80 are laminated. A multi-chip module can be produced by aligning a plurality of chip devices on a substrate through an adhesive to perform temporary adhesion, disposing the buffer film for multi-chip packaging between the chip devices and a bonding head so that the heat-resistant resin layer is on a chip device side, and connecting the plurality of chip devices with the substrate by applying heat and pressure to the chip devices toward the substrate with the bonding head.
    Type: Application
    Filed: September 12, 2011
    Publication date: April 18, 2013
    Applicant: DEXERIALS CORPORATION
    Inventors: Akira Ishigami, Shiyuki Kanisawa, Hidetsugu Namiki, Hideaki Umakoshi, Masaharu Aoki
  • Publication number: 20130087825
    Abstract: A light-reflective anisotropic conductive adhesive used for anisotropic conductive connection of a light-emitting element to a wiring board includes a thermosetting resin composition containing a silicone resin and a curing agent, conductive particles and light-reflective insulating particles. The light-reflective insulating particle is at least one kind of inorganic particles selected from the group consisting of titanium oxide, boron nitride, zinc oxide, silicon oxide, and aluminum oxide. The silicone resin is a glycidyloxyalkyl-alicyclic alkyl-modified organopolysiloxane.
    Type: Application
    Filed: March 14, 2012
    Publication date: April 11, 2013
    Applicant: DEXERIALS CORPORATION
    Inventors: Hideaki Umakoshi, Hidetsugu Namiki, Masaharu Aoki, Akira Ishigami, Shiyuki Kanisawa
  • Publication number: 20130056686
    Abstract: To provide a curable resin composition that can improve resistant properties such as thermal impact resistance even in a high-temperature and high-humidity environment and has a high adhesive property, high conduction reliability and superior crack resistant property. The curable resin composition contains an epoxy resin and an epoxy resin-use curing agent, and is characterized in that a difference between a maximum value of tan ? in a viscoelastic spectrum and a value of the tan ? at ?40° C. thereof is 0.1 or more.
    Type: Application
    Filed: April 13, 2011
    Publication date: March 7, 2013
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventors: Hidetsugu Namiki, Akira Ishigami, Hideaki Umakoshi, Shiyuki Kanisawa
  • Publication number: 20130049054
    Abstract: A light-reflective anisotropic conductive adhesive and light-emitting device capable of maintaining luminous efficiency of a light-emitting element and preventing the occurrence of a crack to obtain conduction reliability are provided. The light-reflective anisotropic conductive adhesive contains a thermosetting resin composite, conductive particles, and a light-reflective acicular insulating particles. These light-reflective acicular insulating particles are inorganic particles of at least one type selected from the group including titanium oxide, zinc oxide, and titanate.
    Type: Application
    Filed: April 13, 2011
    Publication date: February 28, 2013
    Applicant: Sony Chemical & Information Device Corporation
    Inventors: Hidetsugu Namiki, Shiyuki Kanisawa, Hideaki Umakoshi, Akira Ishigami
  • Publication number: 20120248495
    Abstract: A light-reflective anisotropic conductive paste is used as an anisotropic conductive paste when a light-emitting device is produced by flip-chip mounting a light-emitting element such as a light-emitting diode element (LED) on a wiring board. The light-reflective anisotropic conductive paste includes light-reflective insulating particles, in order to improve light emission efficiency without providing, in the LED, a light-reflecting layer that causes an increase in manufacturing cost. With the light-reflective anisotropic conductive paste, a reduction in bonding strength of the light-emitting element to the wiring board in a high-temperature environment can be suppressed, and a reduction in conduction reliability after a TCT can also be suppressed. In the light-reflective anisotropic conductive paste, conductive particles and the light-reflective insulating particles are dispersed in a thermosetting resin composition.
    Type: Application
    Filed: May 27, 2011
    Publication date: October 4, 2012
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventors: Hideaki Umakoshi, Hidetsugu Namiki, Akira Ishigami, Masaharu Aoki, Shiyuki Kanisawa, Yoshihisa Shinya
  • Patent number: 4398280
    Abstract: The chassis of an information recording disk player, carrying various mechanisms is made of a noncontractive synthetic resin. The chassis comprises a flat body and peripheral walls integrally formed with the flat body so that the flat body is reinforced providing sufficient rigidity comparable to a conventional diecasting-made chassis. A casing which encloses the chassis comprises front, rear, top and bottom plates. The front and rear plates function as stands of an intermediate product for holding horizontally the chassis so that assembly and adjustment are readily performed. The casing is made of a conductive material to prevent spurious irradiation of electromagnetic waves from the pickup assembly of the player.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: August 9, 1983
    Assignee: Victor Company of Japan Limited
    Inventors: Akira Ishigami, Yoshikatsu Imano