Patents by Inventor Hiroyuki Izawa

Hiroyuki Izawa 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: 11935669
    Abstract: A method for dispersing conductive particles includes: forming an electric field between a first electrode and a second electrode of an electrostatic adsorption device including the first electrode including a disposition part having electrostatic diffusivity or conductivity on which particles are disposed and the second electrode including an adsorption part having electrostatic diffusivity or conductivity and facing the disposition part, to cause a blend particle in which the conductive particles each having a particle size smaller than a particle size of an intermediate particle are attached to the intermediate particle and which is disposed on the disposition part, to reciprocate between the disposition part and the adsorption part, and to cause the conductive particles to be adsorbed onto the adsorption part.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: March 19, 2024
    Inventors: Shohei Yamazaki, Hiroyuki Izawa, Toshiyuki Sugimoto
  • Publication number: 20240079345
    Abstract: A conductive member includes an adhesive layer and a metal foil layer. The adhesive layer consists of an adhesive composition containing conductive particles. The metal foil layer is disposed on the adhesive layer. The conductive member can be used to form, for example, a predetermined metal film.
    Type: Application
    Filed: January 18, 2022
    Publication date: March 7, 2024
    Inventors: Masashi OHKOSHI, Nozomu TAKANO, Daisuke FUJIMOTO, Hiroyuki IZAWA, Tomohiko KOTAKE, Kunihiko AKAI, Yuka ITOH, Shunsuke TAKAGI
  • Patent number: 11915951
    Abstract: A plasma processing apparatus includes a stage disposed in a processing chamber for mounting a wafer, a plasma generation chamber disposed above the processing chamber for plasma generation using process gas, a plate member having multiple introduction holes, made of a dielectric material, disposed above the stage and between the processing chamber and the plasma generation chamber, and a lamp disposed around the plate member for heating the wafer. The plasma processing apparatus further includes an external IR light source, an emission fiber arranged in the stage, that outputs IR light from the external IR light source toward a wafer bottom, and a light collection fiber for collecting IR light from the wafer. Data obtained using only IR light from the lamp is subtracted from data obtained also using IR light from the external IR light source during heating of the wafer. Thus, a wafer temperature is determined.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: February 27, 2024
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Hiroyuki Kobayashi, Nobuya Miyoshi, Kazunori Shinoda, Tatehito Usui, Naoyuki Kofuji, Yutaka Kouzuma, Tomoyuki Watanabe, Kenetsu Yokogawa, Satoshi Sakai, Masaru Izawa
  • Publication number: 20230397337
    Abstract: A method for manufacturing a substrate with built-in components includes providing an intermediate member including an electronic component with a first electrode provided on a first surface thereof, and a first electrically conductive layer provided on the first surface of the electronic component so as to cover the first electrode, and forming a first insulating resin layer on a first surface of the intermediate member. The first electrically conductive layer includes a first curable adhesive layer formed from a curable adhesive layer including electrically conductive particles and a cured adhesive composition, and a first metal foil layer disposed on the first curable adhesive layer that is a surface on a side opposite to the electronic component. The electrically conductive particles of the first curable adhesive layer electrically connect the first electrode of the electronic component and the first metal foil layer.
    Type: Application
    Filed: August 6, 2021
    Publication date: December 7, 2023
    Inventors: Hiroyuki IZAWA, Hikari MURAI, Nozomu TAKANO, Kunihiko AKAI, Yuka ITOH, Masashi OHKOSHI
  • Publication number: 20230328897
    Abstract: A member for forming a wiring includes an adhesive layer and a metal foil layer. The adhesive layer is formed from an adhesive composition including electrically conductive particles. The metal foil layer is disposed on the adhesive layer. In this member for forming a wiring, a ratio of surface roughness Rz of a first surface of the metal foil layer on a side attached to the adhesive layer with respect to an average particle diameter of the electrically conductive particles is 0.05 to 3.
    Type: Application
    Filed: August 6, 2021
    Publication date: October 12, 2023
    Inventors: Hiroyuki IZAWA, Hikari MURAI, Nozomu TAKANO, Kunihiko AKAI, Yuka ITOH, Masashi OHKOSHI
  • Publication number: 20230002644
    Abstract: A method of producing a connected body, containing: disposing an adhesive film between a first electronic member having a first electronic electrode and a second electronic member having a second electrode; and pressure-bonding the second electronic member to the first electronic member via the adhesive film so that the second electrode is electrically connected to the first electrode; wherein the first electronic member has an indented surface, the first electrode is provided in a depressed portion of the indented surface, the second electrode has a substantially flat surface having an area larger than an area of the first electrode, the adhesive film contains: first conductive particles that are dendritic conductive particles; and second conductive particles containing a non-conductive core and a conductive layer provided on the core, and the second conductive particles have an average particle diameter of not less than a depth of the depressed portion.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 5, 2023
    Inventors: Tetsuyuki SHIRAKAWA, Hiroyuki IZAWA, Takuya MORI, Kenta KIKUCHI
  • Publication number: 20220392670
    Abstract: A method for dispersing conductive particles includes: forming an electric field between a first electrode and a second electrode of an electrostatic adsorption device including the first electrode including a disposition part having electrostatic diffusivity or conductivity on which particles are disposed and the second electrode including an adsorption part having electrostatic diffusivity or conductivity and facing the disposition part, to cause a blend particle in which the conductive particles each having a particle size smaller than a particle size of an intermediate particle are attached to the intermediate particle and which is disposed on the disposition part, to reciprocate between the disposition part and the adsorption part, and to cause the conductive particles to be adsorbed onto the adsorption part.
    Type: Application
    Filed: November 10, 2020
    Publication date: December 8, 2022
    Inventors: Shohei YAMAZAKI, Hiroyuki IZAWA, Toshiyuki SUGIMOTO
  • Patent number: 11319466
    Abstract: One aspect of the present invention is an adhesive film comprising: a first adhesive layer comprising a first adhesive component, a first conductive particle that is a dendritic conductive particle, and a second conductive particle that is a conductive particle other than the first conductive particle, the second conductive particle comprising a nonconductive core body and a conductive layer provided on the core body; and a second adhesive layer comprising a second adhesive component, wherein a volume proportion of the second adhesive component in the second adhesive layer is larger than a volume proportion of the first adhesive component in the first adhesive layer.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: May 3, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Tetsuyuki Shirakawa, Hiroyuki Izawa, Tatsuya Kumada
  • Patent number: 11242472
    Abstract: One aspect of the present invention is an adhesive film comprising a first adhesive layer comprising a first conductive particle that is a dendritic conductive particle; and a second adhesive layer containing a second conductive particle that is a conductive particle other than the first conductive particle, the second conductive particle comprising a nonconductive core body and a conductive layer provided on the core body.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: February 8, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Tetsuyuki Shirakawa, Hiroyuki Izawa, Takahiro Fukui, Tatsuya Kumada
  • Publication number: 20190367783
    Abstract: One aspect of the present invention is an adhesive film comprising: a first adhesive layer comprising a first adhesive component, a first conductive particle that is a dendritic conductive particle, and a second conductive particle that is a conductive particle other than the first conductive particle, the second conductive particle comprising a nonconductive core body and a conductive layer provided on the core body; and a second adhesive layer comprising a second adhesive component, wherein a volume proportion of the second adhesive component in the second adhesive layer is larger than a volume proportion of the first adhesive component in the first adhesive layer.
    Type: Application
    Filed: February 14, 2018
    Publication date: December 5, 2019
    Inventors: Tetsuyuki SHIRAKAWA, Hiroyuki IZAWA, Tatsuya KUMADA
  • Publication number: 20190367782
    Abstract: One aspect of the present invention is an adhesive film comprising a first adhesive layer comprising a first conductive particle that is a dendritic conductive particle; and a second adhesive layer containing a second conductive particle that is a conductive particle other than the first conductive particle, the second conductive particle comprising a nonconductive core body and a conductive layer provided on the core body.
    Type: Application
    Filed: February 14, 2018
    Publication date: December 5, 2019
    Inventors: Tetsuyuki SHIRAKAWA, Hiroyuki IZAWA, Takahiro FUKUI, Tatsuya KUMADA
  • Patent number: 8696942
    Abstract: The adhesive composition of the invention comprises a radical generator, a thermoplastic resin and a urethane(meth)acrylate having two or more radical-polymerizing groups in the molecule and a weight-average molecular weight of 3000-30,000.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 15, 2014
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shigeki Katogi, Hiroyuki Izawa, Houko Sutou, Masami Yusa, Tohru Fujinawa
  • Patent number: 8518303
    Abstract: The adhesive composition of the invention comprises a radical generator, a thermoplastic resin and a urethane(meth)acrylate having two or more radical-polymerizing groups in the molecule and a weight-average molecular weight of 3000-30,000.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: August 27, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shigeki Katogi, Hiroyuki Izawa, Houko Sutou, Masami Yusa, Tohru Fujinawa
  • Patent number: 8426588
    Abstract: Specified phenylalanine derivatives and analogues thereof have an antagonistic activity to ?4 integrin. They are used as therapeutic agents for various diseases concerning ?4 integrin.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: April 23, 2013
    Assignee: Ajinomoto Co, Inc.
    Inventors: Shingo Makino, Tatsuya Okuzumi, Toshihiko Yoshimura, Yuko Satake, Nobuyasu Suzuki, Hiroyuki Izawa, Kazuyuki Sagi, Akira Chiba, Eiji Nakanishi, Masahiro Murata, Takashi Tsuji
  • Publication number: 20130075142
    Abstract: An adhesive composition for connection between a first circuit member having a first connecting terminal on the main surface and a second circuit member having a second connecting terminal on the main surface, wherein the first circuit member and/or second circuit member are made of a base material containing a thermoplastic resin with a glass transition temperature of no higher than 200° C., the first connecting terminal and/or second connecting terminal are made of ITO and/or IZO, and the adhesive composition includes a phosphate group-containing compound, the free phosphate concentration of the cured adhesive composition being no greater than 100 ppm by mass.
    Type: Application
    Filed: March 24, 2011
    Publication date: March 28, 2013
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventors: Hiroyuki Izawa, Shigeki Katogi
  • Patent number: 8309658
    Abstract: The adhesive composition of the invention comprises a thermoplastic resin, a radical polymerizing compound, a radical polymerization initiator and a radical polymerization regulator. According to the present invention it is possible to provide an adhesive composition, a circuit connecting material, a connection structure for a circuit member and a semiconductor device whereby curing treatment can be carried out with sufficient speed at low temperature, curing treatment can be carried out with a wide process margin, and adequately stable adhesive strength can be obtained.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: November 13, 2012
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shigeki Katogi, Houko Sutou, Hiroyuki Izawa, Toshiaki Shirasaka, Masami Yusa, Takanobu Kobayashi
  • Publication number: 20120273974
    Abstract: The adhesive composition of the invention comprises a radical generator, a thermoplastic resin and a urethane (meth)acrylate having two or more radical-polymerizing groups in the molecule and a weight-average molecular weight of 3000-30,000.
    Type: Application
    Filed: June 12, 2012
    Publication date: November 1, 2012
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventors: Shigeki Katogi, Hiroyuki Izawa, Houko Sutou, Masami Yusa, Tohru Fujinawa
  • Publication number: 20120253041
    Abstract: Specified phenylalanine derivatives and analogues thereof have an antagonistic activity to ?4 integrin. They are used as therapeutic agents for various diseases concerning ?4 integrin.
    Type: Application
    Filed: June 15, 2012
    Publication date: October 4, 2012
    Applicant: Ajinomoto Co., Inc.
    Inventors: Shingo MAKINO, Tatsuya Okuzumi, Toshihiko Yoshimura, Yuko Satake, Nobuyasu Suzuki, Hiroyuki Izawa, Kazuyuki Sagi, Akira Chiba, Eiji Nakanishi, Masahiro Murata, Takashi Tsuji
  • Patent number: 8222405
    Abstract: Specified phenylalanine derivatives and analogues thereof have an antagonistic activity to ?4 integrin. They are used as therapeutic agents for various diseases concerning ?4 integrin.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: July 17, 2012
    Assignee: Ajinomoto Co., Inc.
    Inventors: Shingo Makino, Tatsuya Okuzumi, Toshihiko Yoshimura, Yuko Satake, Nobuyasu Suzuki, Hiroyuki Izawa, Kazuyuki Sagi, Akira Chiba, Eiji Nakanishi, Masahiro Murata, Takashi Tsuji
  • Patent number: 8138268
    Abstract: The adhesive composition of the invention comprises a thermoplastic resin, a radical polymerizing compound, a radical polymerization initiator and a radical polymerization regulator. According to the present invention it is possible to provide an adhesive composition, a circuit connecting material, a connection structure for a circuit member and a semiconductor device whereby curing treatment can be carried out with sufficient speed at low temperature, curing treatment can be carried out with a wide process margin, and adequately stable adhesive strength can be obtained.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: March 20, 2012
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shigeki Katogi, Houko Sutou, Hiroyuki Izawa, Toshiaki Shirasaka, Masami Yusa, Takanobu Kobayashi