公开(公告)号：US11135681B2

公开(公告)日：2021-10-05

申请号：US15828909

申请日：2017-12-01

Applicant: TOYOKOH Co., Ltd.

Inventor： Hiroyasu Toyosawa ,  Kazuaki Toyosawa ,  Kazuhisa Fujita ,  Shinichiro Okihara

IPC: B23K26/36 ,  B08B7/00 ,  B23K26/00 ,  B01J19/12 ,  B23K26/16 ,  B23K26/402 ,  B23K26/04 ,  B23K26/06 ,  B23K26/08 ,  B23K26/14 ,  B23K26/064 ,  B23K26/082 ,  B23K26/035 ,  B23K103/00

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.

公开(公告)号：US20240091880A1

公开(公告)日：2024-03-21

申请号：US18522873

申请日：2023-11-29

Applicant: TOYOKOH Co.,Ltd.

Inventor： Kenjiro MOMI ,  Manabu HARAGUCHI ,  Momo TOSUE

IPC: B23K26/082

CPC classification number: B23K26/0821

Abstract: A laser irradiation apparatus irradiates an irradiation object with a laser beam. The apparatus comprises scanning pattern formation sections that change at least either of an emitting direction and a shift amount (size) of a laser beam periodically so that a position irradiated with a laser beam moves periodically along a predetermined scanning pattern on a predetermined plane. And the apparatus comprises an irradiation control section that stops irradiation of a laser beam directed to an excessive irradiation prevention area set in some area in the scanning pattern or makes an intensity of the laser beam lower in comparison with an intensity of a laser beam directed to an area other than the excessive irradiation prevention area.

公开(公告)号：US20230347448A1

公开(公告)日：2023-11-02

申请号：US18220058

申请日：2023-07-10

Applicant: TOYOKOH Co.,Ltd.

Inventor： Yoichi HONMO ,  Yasunori KATO ,  Tsuyoshi SAITO ,  Masafumi HOSOKAWA ,  Kenjiro MOMI ,  Manabu HARAGUCHI ,  Yuji FURUMAKI ,  Hiroshi SENDA

IPC: B23K26/362 ,  B08B3/04 ,  B32B15/01

CPC classification number: B23K26/362 ,  B08B3/04 ,  B32B15/013 ,  B23K2101/34

Abstract: Provided is a surface treatment method of a metallic material having a protective layer formed thereon. A surface of the protective layer is scanned while irradiating the surface and the surface is scanned while moving an irradiation spot along the surface, in a state in which a side layer of the protective layer along the metallic material remains covering the metallic material, and a side layer of the protective layer opposite to the metallic material side is removed by irradiation with the laser beam.

公开(公告)号：US20230019043A1

公开(公告)日：2023-01-19

申请号：US17780278

申请日：2020-11-26

Applicant: TOYOKOH CO.,LTD.

Inventor： Kenjiro MOMI ,  Kazuhisa FUJITA ,  Manabu HARAGUCHI ,  Daisuke MORI ,  Momo TOSUE

IPC: G01N21/17 ,  H04R1/08 ,  H04R1/40 ,  H04R3/00

Abstract: Disclosed is a laser irradiation state diagnosing method which allows accurately diagnosing a laser irradiation state. When irradiating a laser beam so that an irradiation spot scans the surface of the irradiation object, acoustic information in vicinity of the irradiation spot is acquired. And based on characteristics of the acoustic information, such as an intensity of a component of a specific frequency band or a frequency band distribution, a state of peeling of the adhered substances existing on the surface of the irradiation object is determined.

公开(公告)号：US20170252862A1

公开(公告)日：2017-09-07

申请号：US15310207

申请日：2015-07-13

Applicant: TOYOKOH Co., Ltd.

Inventor： Kazuaki TOYOSAWA ,  Akihiro KUROYANAGI ,  Kazuhisa FUJITA ,  Shinichiro OKIHARA

IPC: B23K26/082 ,  B23K26/16

CPC classification number: B23K26/082 ,  B23K26/0648 ,  B23K26/0652 ,  B23K26/08 ,  B23K26/10 ,  B23K26/14 ,  B23K26/16

Abstract: 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.

公开(公告)号：US20150076125A1

公开(公告)日：2015-03-19

申请号：US14379646

申请日：2013-03-08

Applicant: TOYOKOH, Co., Ltd.

Inventor： Hiroyasu Toyosawa ,  Kazuaki Toyosawa ,  Kazuhisa Fujita ,  Shinichiro Okihara

IPC: B23K26/36 ,  B23K26/06 ,  B23K26/08

CPC classification number: B23K26/36 ,  B01J19/12 ,  B08B7/0035 ,  B23K26/00 ,  B23K26/0006 ,  B23K26/037 ,  B23K26/04 ,  B23K26/06 ,  B23K26/064 ,  B23K26/08 ,  B23K26/082 ,  B23K26/0869 ,  B23K26/14 ,  B23K26/16 ,  B23K26/402 ,  B23K2103/56

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.

Abstract translation: 为了提供激光照射系统，除去涂层的方法以及能够有效地去除结构表面上的涂层并且利用抽吸回收去除的物质的激光照射装置，激光头（3）由 用于照射激光束（30）的光学系统（4），用于吸引在激光束（30）所指向的点处产生的去除物质（60）的抽吸装置（33）和被配置为 能够邻接结构的表面（20），所述光学系统（4）被操作以扫描激光束的照射点，以便围绕激光束的光轴绘制具有半径r1的圆的轨迹 （30）在基本上垂直于光轴的表面上。