US 12,248,829 B2
Method of manufacturing metal product and metal product
Jin Oda, Kitakyushu (JP); Junya Satake, Kitakyushu (JP); and Tomoki Hirayama, Kitakyushu (JP)
Filed by Mitsui High-tec, Inc., Kitakyushu (JP)
Filed on May 19, 2022, as Appl. No. 17/748,100.
Application 17/748,100 is a division of application No. 16/597,857, filed on Oct. 10, 2019, granted, now 11,366,994.
Application 16/597,857 is a continuation of application No. PCT/JP2018/004071, filed on Feb. 6, 2018.
Claims priority of application No. 2017-080582 (JP), filed on Apr. 14, 2017.
Prior Publication US 2022/0277180 A1, Sep. 1, 2022
Int. Cl. G06K 19/06 (2006.01); B23K 26/082 (2014.01); B23K 26/362 (2014.01); G06K 7/14 (2006.01); H02K 15/02 (2006.01)
CPC G06K 19/06037 (2013.01) [B23K 26/082 (2015.10); B23K 26/362 (2013.01); G06K 7/1417 (2013.01); H02K 15/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of manufacturing a metal product, the method comprising:
forming a base region on a surface of a metal member by repeatedly scanning along a predetermined first direction while irradiating the surface of the metal member with a base laser beam over a first set of adjacent rows; and
forming a marking by repeatedly scanning along a predetermined second direction while irradiating the surface of the metal member with a marking laser beam over a second set of adjacent rows,
wherein the second direction is different from the first direction, and
wherein an identification code having a predetermined pattern comprises a combination of the base region and the marking.