Patents by Inventor Hidekazu Nakayama

Hidekazu Nakayama 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: 20240120709
    Abstract: The present technology provides a surface emitting element capable of enabling highly accurate detection of an optical characteristic of an emitted light and/or enabling adjustment of the optical characteristic of the emitted light. The surface emitting element of the present technology provides a surface emitting element including a light emitting layer, a characteristic layer that is disposed on an optical path of light generated in the light emitting layer, exhibits an electrical characteristic due to light incidence, and/or has variability in an optical characteristic due to voltage application, and a plurality of electrodes provided on the characteristic layer.
    Type: Application
    Filed: January 19, 2022
    Publication date: April 11, 2024
    Inventors: EIJI NAKAYAMA, TATSUSHI HAMAGUCHI, KENTARO HAYASHI, RINTARO KODA, HIDEKAZU KAWANISHI
  • Patent number: 11948865
    Abstract: A film-shaped firing material (1) is provided, including first metal particles (10), second metal particles (20), and a binder component (30), in which the average particle diameter of the first metal particles (10) is 100 nm or less, and the maximum particle diameter thereof is 250 nm or less, the average particle diameter of the second metal particles (20) is in a range of 1000 to 7000 nm, the minimum particle diameter thereof is greater than 250 nm, and the maximum particle diameter thereof is 10000 nm or less, and the mass ratio of the first metal particles to the second metal particles is 0.1 or greater.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: April 2, 2024
    Assignee: LINTEC CORPORATION
    Inventors: Takeshi Mori, Isao Ichikawa, Hidekazu Nakayama
  • Publication number: 20240009792
    Abstract: A wafer grinding method includes a step of forming a protective member on one side of a wafer, a first grinding step of grinding the other side of the wafer by setting a chuck-table rotating shaft and a grinding-stone rotating shaft at a first tilt correlation that has taken into consideration sinking of the wafer by compression of the protective member during grinding, and a second grinding step of grinding the wafer on its one side to a predetermined thickness by setting the shafts at a second tilt correlation such that a lower surface of the grinding stone, where the grinding stone is to be in contact with the wafer, and the holding surface become parallel, and bringing the grinding stone into contact at its lower surface with a radial segment of the one side of the wafer.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 11, 2024
    Inventors: Hidekazu NAKAYAMA, Kazutaka KUWANA
  • Publication number: 20230018086
    Abstract: The present invention relates to a film-shaped firing material (1) which contains: sinterable metal particles (10); a binder component (20) that is a solid at room temperature; and a liquid component (30) that is a liquid at room temperature, the liquid component having a boiling point from 300 to 450° C.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 19, 2023
    Inventors: Hidekazu NAKAYAMA, Isao ICHIKAWA, Yosuke SATO
  • Publication number: 20220293555
    Abstract: A method of manufacturing a laminate, the method including: providing a film-form firing material on a support sheet, the film-form firing material containing a sinterable metal particle and a binder component and having an identical or substantially identical shape and an identical size to a shape and size of a semiconductor chip; applying, to a substrate, the film-form firing material on the support sheet; peeling off the support sheet from the substrate and the film-form firing material; applying a back surface side of the semiconductor chip to the film-form firing material on the substrate to face each other; and sinter-bonding the semiconductor chip and the substrate by heating the film-form firing material to 200° C. or higher.
    Type: Application
    Filed: August 20, 2020
    Publication date: September 15, 2022
    Inventors: Isao ICHIKAWA, Hidekazu NAKAYAMA, Yosuke SATO
  • Publication number: 20220293554
    Abstract: A method of manufacturing a laminate, the method including: providing a film-form firing material on a support sheet, the film-form firing material containing a sinterable metal particle and a binder component and having an identical or substantially identical shape and an identical size to a shape and size of a semiconductor chip; applying a back surface side of the semiconductor chip to the film-form firing material on the support sheet to face each other; peeling off the film-form firing material and the semiconductor chip from the support sheet; applying, to a substrate, a film-form firing material side of the semiconductor chip to which the film-form firing material has been applied; and heating the film-form firing material to 200° C. or higher to sinter-bond the semiconductor chip and the substrate.
    Type: Application
    Filed: August 20, 2020
    Publication date: September 15, 2022
    Inventors: Isao ICHIKAWA, Hidekazu NAKAYAMA, Yosuke SATO
  • Patent number: 11420255
    Abstract: A film-shaped firing material 1 is provided, including sinterable metal particles 10 and a binder component 20, in which a content of the sinterable metal particles 10 is in a range of 15% to 98% by mass, a content of the binder component 20 is in a range of 2% to 50% by mass, a shrinkage factor in a planar direction of the film-shaped firing material after being pressurized and fired under conditions of a temperature of 350° C. and a pressure of 10 MPa for 3 minutes is 10% or less with respect to the shrinkage factor before the firing, and a volume shrinkage factor thereof is in a range of 15% to 90% with respect to the volume shrinkage factor before the firing, and a contact ratio of the film-shaped firing material with an adherend after being pressurized and fired under conditions of a temperature of 350° C. and a pressure of 10 MPa for 3 minutes in a state in which the film-shaped firing material is in contact with the adherend is 90% or greater with respect to a contact area of the adherend.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: August 23, 2022
    Assignee: LINTEC Corporation
    Inventors: Isao Ichikawa, Hidekazu Nakayama
  • Patent number: 11389927
    Abstract: A processing apparatus includes a first distinguishing display unit which, when a mechanism making a holding force or a processing force act on a workpiece causes an error, displays a workpiece illustration representing the workpiece to which the error is caused and on which the holding force or the processing force acts distinguishably from another workpiece illustration. The workpiece on which the holding force or the processing force of the mechanism causing the error acts can be thereby identified easily.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: July 19, 2022
    Assignee: DISCO CORPORATION
    Inventors: Nobuyuki Fukushi, Souichi Matsubara, Suzu Hoshino, Hidekazu Nakayama
  • Publication number: 20220134504
    Abstract: A wafer grinding method includes a step of holding a wafer on a holding surface of a chuck table, a first grinding step of controlling a grinding feeding mechanism by a control unit so as to increase or decrease a load value measured by a load measuring unit and grinding the wafer to a thickness not reaching a predetermined finished thickness of the wafer, and a second grinding step of imparting a preset load value and grinding the wafer until the predetermined finished thickness is reached, after the first grinding step.
    Type: Application
    Filed: September 30, 2021
    Publication date: May 5, 2022
    Inventors: Tetsuo KUBO, Hidekazu NAKAYAMA
  • Patent number: 11315899
    Abstract: The present invention provides a die bonding material containing the following component (A) and a solvent and having a refractive index (nD) at 25° C. of 1.41 to 1.43 and a thixotropic index of 2 or more, a light-emitting device including an adhesive member derived from the die bonding material, and a method for producing the light-emitting device. The die bonding material of the present invention is preferably used for fixing a light emitting element at a predetermined position. Component (A): a curable polysilsesquioxane compound having a repeating unit represented by the following formula (a-1) and satisfying predetermined requirements related to 29Si-NMR and mass average molecular weight (Mw) R1-D-SiO3/2??(a-1) [wherein R1 represents a fluoroalkyl group represented by a compositional formula: CmH(2m?n+1)Fn; m represents an integer of 1 to 10, and n represents an integer of 2 to (2m+1); and D represents a linking group (excluding an alkylene group) for connecting R1 and Si, or a single bond].
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: April 26, 2022
    Assignees: LINTEC CORPORATION, NICHIA CORPORATION
    Inventors: Akiko Umeda, Manabu Miyawaki, Hidekazu Nakayama, Hiroki Inoue, Toshifumi Imura
  • Patent number: 11285536
    Abstract: A film-shaped fired material of the present invention is a film-shaped fired material 1 which contains sinterable metal particles 10 and a binder component 20, in which a time (A1) after the start of a temperature increase, at which a negative gradient is the highest, in a thermogravimetric curve (TG curve) measured from 40° C. to 600° C. at a temperature-rising-rate of 10° C./min in an air atmosphere and a maximum peak time (B1) in a time range of 0 seconds to 2160 seconds after the start of a temperature increase in a differential thermal analysis curve (DTA curve) measured from 40° C. to 600° C. at a temperature-rising-rate of 10° C./min in an air atmosphere using alumina particles as a reference sample satisfy a relationship of “A1<B1<A1+200 seconds” and a relationship of “A1<2000 seconds”.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: March 29, 2022
    Assignee: LINTEC Corporation
    Inventors: Isao Ichikawa, Hidekazu Nakayama
  • Patent number: 11267992
    Abstract: The present invention provides a film-shaped firing material 1 including sinterable metal particles 10, and a binder component 20, in which a content of the sinterable metal particles 10 is in a range of 15% to 98% by mass, a content of the binder component 20 is in a range of 2% to 50% by mass, a tensile elasticity of the film-shaped firing material at 60° C. is in a range of 4.0 to 10.0 MPa, and a breaking elongation thereof at 60° C. is 500% or greater; and a film-shaped firing material with a support sheet including the film-shaped firing material 1 which contains sinterable metal particles and a binder component, and a support sheet 2 which is provided on at least one side of the film-shaped firing material, in which an adhesive force (a2) of the film-shaped firing material to the support sheet is smaller than an adhesive force (a1) of the film-shaped firing material to a semiconductor wafer, the adhesive force (a1) is 0.1 N/25 mm or greater, and the adhesive force (a2) is in a range of 0.1 N/25 mm to 0.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: March 8, 2022
    Assignee: LINTEC Corporation
    Inventors: Isao Ichikawa, Hidekazu Nakayama, Akinori Sato
  • Publication number: 20220066625
    Abstract: A control unit of a processing apparatus displays on a display part a selection screen including a screen list, a selection button capable of selecting a first operation screen from the screen list, and an output button for outputting the first operation screen from the screen list as a second operation screen to an external storage device. When an external storage device that has stored a second operation screen on a processing apparatus of the same type as the processing apparatus is connected to a connector, the control unit displays on the display part the second operation screen from the external storage device without going through first operation screens established in a predetermined order.
    Type: Application
    Filed: August 19, 2021
    Publication date: March 3, 2022
    Inventor: Hidekazu NAKAYAMA
  • Patent number: 11219946
    Abstract: The present invention provides a film-shaped firing composition with excellent printability, a method of producing a film-shaped firing material obtained by using the firing material composition, and a method of producing a film-shaped firing material with a support sheet. A paste-like firing material composition is provided, including sinterable metal particles (10), a binder component (20), and a solvent having a relative evaporation rate of 4.0 or less with respect to butyl acetate, in which a content of the solvent is in a range of 12% to 50% by mass with respect to a total mass of the firing material composition.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 11, 2022
    Assignee: LINTEC CORPORATION
    Inventors: Takeshi Mori, Hidekazu Nakayama, Isao Ichikawa, Yukiharu Nose
  • Publication number: 20210078080
    Abstract: A film-shaped firing material (1) is provided, including first metal particles (10), second metal particles (20), and a binder component (30), in which the average particle diameter of the first metal particles (10) is 100 nm or less, and the maximum particle diameter thereof is 250 nm or less, the average particle diameter of the second metal particles (20) is in a range of 1000 to 7000 nm, the minimum particle diameter thereof is greater than 250 nm, and the maximum particle diameter thereof is 10000 nm or less, and the mass ratio of the first metal particles to the second metal particles is 0.1 or greater.
    Type: Application
    Filed: February 8, 2019
    Publication date: March 18, 2021
    Inventors: Takeshi MORI, Isao ICHIKAWA, Hidekazu NAKAYAMA
  • Patent number: 10920117
    Abstract: The invention is a curable composition comprising the following component (A) and component (B): Component (A): a curable polysilsesquioxane compound having a repeating unit represented by the following specific formula (a-1): R1—D—SiO3/2??(a-1) Component (B): a silane coupling agent having a nitrogen atom in its molecule, and a method for producing the curable composition, and a cured product obtained by curing the curable composition, and a method for using the curable composition as an adhesive for an optical element-fixing material, and a method for using the curable composition as a sealant for an optical element-fixing material, and an optical device obtained by using the curable composition as an adhesive or a sealant for an optical element-fixing material. One aspect of the curable composition according to one embodiment of the invention can provide a cured product excellent in adhesiveness and heat resistance and having a low refractive index.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 16, 2021
    Assignee: LINTEC CORPORATION
    Inventors: Yutaka Nanashima, Hidekazu Nakayama, Manabu Miyawaki, Mikihiro Kashio
  • Publication number: 20200376549
    Abstract: A film-shaped fired material of the present invention is a film-shaped fired material 1 which contains sinterable metal particles 10 and a binder component 20, in which a time (A1) after the start of a temperature increase, at which a negative gradient is the highest, in a thermogravimetric curve (TG curve) measured from 40° C. to 600° C. at a temperature-rising-rate of 10° C./min in an air atmosphere and a maximum peak time (B1) in a time range of 0 seconds to 2160 seconds after the start of a temperature increase in a differential thermal analysis curve (DTA curve) measured from 40° C. to 600° C. at a temperature-rising-rate of 10° C./min in an air atmosphere using alumina particles as a reference sample satisfy a relationship of “A1<B1<A1+200 seconds” and a relationship of “A1<2000 seconds”.
    Type: Application
    Filed: March 15, 2018
    Publication date: December 3, 2020
    Inventors: Isao ICHIKAWA, Hidekazu NAKAYAMA
  • Publication number: 20200335471
    Abstract: The present invention provides a die bonding material containing the following component (A) and a solvent and having a refractive index (nD) at 25° C. of 1.41 to 1.43 and a thixotropic index of 2 or more, a light-emitting device including an adhesive member derived from the die bonding material, and a method for producing the light-emitting device. The die bonding material of the present invention is preferably used for fixing a light emitting element at a predetermined position. Component (A): a curable polysilsesquioxane compound having a repeating unit represented by the following formula (a-1) and satisfying predetermined requirements related to 29Si-NMR and mass average molecular weight (Mw) R1-D-SiO3/2 ??(a-1) [wherein R1 represents a fluoroalkyl group represented by a compositional formula: CmH(2m-n+1)Fn; m represents an integer of 1 to 10, and n represents an integer of 2 to (2m+1); and D represents a linking group (excluding an alkylene group) for connecting R1 and Si, or a single bond].
    Type: Application
    Filed: April 17, 2020
    Publication date: October 22, 2020
    Applicant: LINTEC Corporation
    Inventors: Akiko UMEDA, Manabu MIYAWAKI, Hidekazu NAKAYAMA, Hiroki INOUE, Toshifumi IMURA
  • Patent number: 10774249
    Abstract: The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1), R1SiO3/2??(a-1) wherein R1 is a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises an acid anhydride structure in its molecule.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: September 15, 2020
    Assignee: LINTEC CORPORATION
    Inventors: Hidekazu Nakayama, Masami Matsui, Mikihiro Kashio
  • Publication number: 20200277515
    Abstract: The present invention provides a film-shaped firing material 1 including sinterable metal particles 10, and a binder component 20, in which a content of the sinterable metal particles 10 is in a range of 15% to 98% by mass, a content of the binder component 20 is in a range of 2% to 50% by mass, a tensile elasticity of the film-shaped firing material at 60° C. is in a range of 4.0 to 10.0 MPa, and a breaking elongation thereof at 60° C. is 500% or greater; and a film-shaped firing material with a support sheet including the film-shaped firing material 1 which contains sinterable metal particles and a binder component, and a support sheet 2 which is provided on at least one side of the film-shaped firing material, in which an adhesive force (a2) of the film-shaped firing material to the support sheet is smaller than an adhesive force (a1) of the film-shaped firing material to a semiconductor wafer, the adhesive force (a1) is 0.1 N/25 mm or greater, and the adhesive force (a2) is in a range of 0.1 N/25 mm to 0.
    Type: Application
    Filed: September 4, 2018
    Publication date: September 3, 2020
    Inventors: Isao ICHIKAWA, Hidekazu NAKAYAMA, Akinori SATO