Patents Assigned to TOYOKOH, Co., Ltd.
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Publication number: 20210394308Abstract: 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: ApplicationFiled: September 1, 2021Publication date: December 23, 2021Applicant: TOYOKOH Co., Ltd.Inventors: Hiroyasu TOYOSAWA, Kazuaki TOYOSAWA, Kazuhisa FUJITA, Shinichiro OKIHARA
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Patent number: 11135681Abstract: 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: GrantFiled: December 1, 2017Date of Patent: October 5, 2021Assignee: TOYOKOH, Co., Ltd.Inventors: Hiroyasu Toyosawa, Kazuaki Toyosawa, Kazuhisa Fujita, Shinichiro Okihara
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Patent number: 10464167Abstract: This is to provide a laser irradiation apparatus which can drive a deflection optical system (33) with a high speed by a small and lightweight structure and can cope with heat generation of the optical system. The laser irradiation apparatus includes a condensing optical system (32) for condensing a laser beam (B) generated by a laser oscillator (10) at a predetermined focal point (FP), a deflection optical system (33) for deflecting the laser beam (B) generated from the condensing optical system (32) with a predetermined deflection angle, and a driving unit (100) for rotationally driving the deflection optical system (33) around a rotation axis provided substantially in parallel to an optical axis of the condensing optical system (32), wherein the driving unit (100) has an air motor (100) which convert an energy possessed by a gas supplied from a gas supplying source (60) to a rotational force.Type: GrantFiled: July 13, 2015Date of Patent: November 5, 2019Assignee: TOYOKOH CO., LTD.Inventors: Kazuaki Toyosawa, Akihiro Kuroyanagi, Kazuhisa Fujita, Shinichiro Okihara
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Publication number: 20180085858Abstract: 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: ApplicationFiled: December 1, 2017Publication date: March 29, 2018Applicant: TOYOKOH Co., Ltd.Inventors: Hiroyasu TOYOSAWA, Kazuaki TOYOSAWA, Kazuhisa FUJITA, Shinichiro OKIHARA
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Patent number: 9868179Abstract: 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: GrantFiled: March 8, 2013Date of Patent: January 16, 2018Assignee: TOYOKOH, Co., Ltd.Inventors: Hiroyasu Toyosawa, Kazuaki Toyosawa, Kazuhisa Fujita, Shinichiro Okihara
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Publication number: 20150076125Abstract: 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: ApplicationFiled: March 8, 2013Publication date: March 19, 2015Applicant: TOYOKOH, Co., Ltd.Inventors: Hiroyasu Toyosawa, Kazuaki Toyosawa, Kazuhisa Fujita, Shinichiro Okihara