公开(公告)号：US20240218140A1

公开(公告)日：2024-07-04

申请号：US18397004

申请日：2023-12-27

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Atsushi NAKANISHI ,  Yuta KINE ,  Takeshi WATARI ,  Takashi KURITA ,  Hiroshi SATOZONO

IPC: C08J7/12

CPC classification number: C08J7/123 ,  C08J2323/12 ,  C08J2355/02 ,  C08J2377/02 ,  C08J2497/02

Abstract: Provided is a method of manufacturing a resin member. The method includes irradiating a surface of a member containing a resin and a plant powder dispersed in the resin with laser light to change the plant powder or both the resin and the plant powder into diamond-like carbon in a surface layer region including the surface of the member.

公开(公告)号：US20240208822A1

公开(公告)日：2024-06-27

申请号：US18545069

申请日：2023-12-19

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Atsushi NAKANISHI ,  Yuta KINE ,  Takeshi WATARI ,  Takashi KURITA

IPC: C01B32/184 ,  B23K26/0622 ,  B23K26/70

CPC classification number: C01B32/184 ,  B23K26/0624 ,  B23K26/705

Abstract: A graphene manufacturing method includes a step of preparing a workpiece including a base material made of a resin material and a plant powder dispersed in the base material, a step of irradiating a surface of the workpiece with a terahertz wave and an evaluation laser beam and detecting the terahertz wave from the surface, a step of irradiating a processing region of the surface with a processing laser beam to form graphene in the processing region, a step of irradiating the processing region with the terahertz wave and the evaluation laser beam and detecting the terahertz wave from the processing region, and a step of evaluating quality of the graphene in the processing region based on an intensity difference between the terahertz wave detected in the step and the terahertz wave detected in the step.