Patents by Inventor Akiko Hamamoto

Akiko Hamamoto 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: 11378388
    Abstract: A substrate inspection method includes a first process of taking, while rotating a holding table where a reference substrate is held, an image of an end surface of the reference substrate; a second process of obtaining shape data on the end surface of the reference substrate by processing the image; a third process of taking, while rotating the holding table where a target substrate is held, an image of an end surface of the target substrate; a fourth process of obtaining shape data on the end surface of the target substrate by processing the image; and a fifth process of calculating a warpage amount of the target substrate by obtaining a difference between the shape data obtained in the second process and in the fourth process under a condition that a rotational position of the holding table in the first process coincides with that in the third process.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: July 5, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kazuya Hisano, Akiko Kiyotomi, Yasuaki Noda, Keisuke Hamamoto, Tadashi Nishiyama
  • Patent number: 11326032
    Abstract: Provided is a polyamide film which is a stretched film including a polyamide resin composition containing 1 to 10% by mass of a polyester thermoplastic elastomer, wherein the polyamide film satisfies all of the following conditions (A) to (C): (A) elastic moduli in MD and TD of the film are each 1.0 to 2.3 GPa; (B) a ratio between the elastic moduli in MD and TD of the film (MD/TD) is 0.9 to 1.5; and (C) a haze of the film is 7% or less.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: May 10, 2022
    Assignee: Unitika Ltd.
    Inventors: Takayoshi Okuzu, Akiko Hamamoto, Ken Akamatsu
  • Publication number: 20210179843
    Abstract: A polyester film comprises a polyester (A) composed mainly of polybutylene terephthalate and a polyester (B) composed mainly of polyethylene terephthalate, wherein a mass ratio (A/B) between the polyesters (A) and (B) is 70/30 to 55/45, a dry heat shrinkage rate (A) through heat treatment at 160° C. for 30 minutes is 20% or less in any of four directions on a film surface (0°, 45°, 90° and 135®), a difference between a maximum value and a minimum value of these dry heat shrinkage rates is 5% or less, a dry heat shrinkage rate (B) through heat treatment at 200° C. for 15 minutes is 35% or less in any of the four directions, a difference between a maximum value and a minimum value of these dry heat shrinkage rates is 5% or less, and a thickness variation in the four directions is 10% or less.
    Type: Application
    Filed: September 5, 2019
    Publication date: June 17, 2021
    Applicant: UNITIKA LTD.
    Inventors: Takayoshi Okuzu, Ken Akamatsu, Akiko Hamamoto, Hiroshi Ashihara, Goro Araki, Akito Kajita
  • Publication number: 20200392298
    Abstract: Provided is a polyamide film which is a stretched film including a polyamide resin composition containing 1 to 10% by mass of a polyester thermoplastic elastomer, wherein the polyamide film satisfies all of the following conditions (A) to (C): (A) elastic moduli in MD and TD of the film are each 1.0 to 2.3 GPa; (B) a ratio between the elastic moduli in MD and TD of the film (MD/TD) is 0.9 to 1.5; and (C) a haze of the film is 7% or less.
    Type: Application
    Filed: December 26, 2018
    Publication date: December 17, 2020
    Applicant: UNITIKA LTD.
    Inventors: Takayoshi Okuzu, Akiko Hamamoto, Ken Akamatsu