Patents by Inventor Hiroyasu Toyosawa

Hiroyasu Toyosawa 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: 20210394308
    Abstract: In order to provide a laser irradiation system, a method for removing a coating, and a laser irradiation apparatus capable of efficiently removing a coating on a surface of a structure and recovering the removed substance using suction, a laser head (3) is configured from an optical system (4) for irradiating laser beam (30), a suctioning means (33) for suctioning removed matter (60) produced at the point where the laser beam (30) is directed, and an attachment (5) configured to be capable of abutting a surface (20) of a structure, the optical system (4) being operated to scan the irradiation point of the laser beam so as to draw a trajectory of a circle having a radius r1 around the optical axis of the laser beam (30) on a surface substantially perpendicular to the optical axis.
    Type: Application
    Filed: September 1, 2021
    Publication date: December 23, 2021
    Applicant: TOYOKOH Co., Ltd.
    Inventors: Hiroyasu TOYOSAWA, Kazuaki TOYOSAWA, Kazuhisa FUJITA, Shinichiro OKIHARA
  • Patent number: 11135681
    Abstract: In order to provide a laser irradiation system, a method for removing a coating, and a laser irradiation apparatus capable of efficiently removing a coating on a surface of a structure and recovering the removed substance using suction, a laser head (3) is configured from an optical system (4) for irradiating laser beam (30), a suctioning means (33) for suctioning removed matter (60) produced at the point where the laser beam (30) is directed, and an attachment (5) configured to be capable of abutting a surface (20) of a structure, the optical system (4) being operated to scan the irradiation point of the laser beam so as to draw a trajectory of a circle having a radius r1 around the optical axis of the laser beam (30) on a surface substantially perpendicular to the optical axis.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: October 5, 2021
    Assignee: TOYOKOH, Co., Ltd.
    Inventors: Hiroyasu Toyosawa, Kazuaki Toyosawa, Kazuhisa Fujita, Shinichiro Okihara
  • Publication number: 20180085858
    Abstract: In order to provide a laser irradiation system, a method for removing a coating, and a laser irradiation apparatus capable of efficiently removing a coating on a surface of a structure and recovering the removed substance using suction, a laser head (3) is configured from an optical system (4) for irradiating laser beam (30), a suctioning means (33) for suctioning removed matter (60) produced at the point where the laser beam (30) is directed, and an attachment (5) configured to be capable of abutting a surface (20) of a structure, the optical system (4) being operated to scan the irradiation point of the laser beam so as to draw a trajectory of a circle having a radius r1 around the optical axis of the laser beam (30) on a surface substantially perpendicular to the optical axis.
    Type: Application
    Filed: December 1, 2017
    Publication date: March 29, 2018
    Applicant: TOYOKOH Co., Ltd.
    Inventors: Hiroyasu TOYOSAWA, Kazuaki TOYOSAWA, Kazuhisa FUJITA, Shinichiro OKIHARA
  • Patent number: 9868179
    Abstract: In order to provide a laser irradiation system, a method for removing a coating, and a laser irradiation apparatus capable of efficiently removing a coating on a surface of a structure and recovering the removed substance using suction, a laser head (3) is configured from an optical system (4) for irradiating laser beam (30), a suctioning means (33) for suctioning removed matter (60) produced at the point where the laser beam (30) is directed, and an attachment (5) configured to be capable of abutting a surface (20) of a structure, the optical system (4) being operated to scan the irradiation point of the laser beam so as to draw a trajectory of a circle having a radius r1 around the optical axis of the laser beam (30) on a surface substantially perpendicular to the optical axis.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: January 16, 2018
    Assignee: TOYOKOH, Co., Ltd.
    Inventors: Hiroyasu Toyosawa, Kazuaki Toyosawa, Kazuhisa Fujita, Shinichiro Okihara
  • Publication number: 20150076125
    Abstract: In order to provide a laser irradiation system, a method for removing a coating, and a laser irradiation apparatus capable of efficiently removing a coating on a surface of a structure and recovering the removed substance using suction, a laser head (3) is configured from an optical system (4) for irradiating laser beam (30), a suctioning means (33) for suctioning removed matter (60) produced at the point where the laser beam (30) is directed, and an attachment (5) configured to be capable of abutting a surface (20) of a structure, the optical system (4) being operated to scan the irradiation point of the laser beam so as to draw a trajectory of a circle having a radius r1 around the optical axis of the laser beam (30) on a surface substantially perpendicular to the optical axis.
    Type: Application
    Filed: March 8, 2013
    Publication date: March 19, 2015
    Applicant: TOYOKOH, Co., Ltd.
    Inventors: Hiroyasu Toyosawa, Kazuaki Toyosawa, Kazuhisa Fujita, Shinichiro Okihara