US 12,386,315 B2
Case and timepiece
Yoshihiro Maruyama, Hamura (JP); and Masakuni Iwanaga, Akishima (JP)
Assigned to CASIO COMPUTER CO., LTD., Tokyo (JP)
Filed by CASIO COMPUTER CO., LTD., Tokyo (JP)
Filed on Oct. 19, 2021, as Appl. No. 17/504,748.
Application 17/504,748 is a continuation of application No. 16/574,153, filed on Sep. 18, 2019, granted, now 11,181,866.
Claims priority of application No. 2018-189354 (JP), filed on Oct. 4, 2018.
Prior Publication US 2022/0035316 A1, Feb. 3, 2022
Int. Cl. G04B 37/08 (2006.01); G04B 37/00 (2006.01); G04B 37/22 (2006.01); G04D 3/00 (2006.01)
CPC G04B 37/084 (2013.01) [G04B 37/0008 (2013.01); G04B 37/08 (2013.01); G04B 37/22 (2013.01); G04D 3/0064 (2013.01); G04D 3/0069 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for manufacturing a case comprising:
a first step of placing an exterior member on an upper side of a main case body; and
a second step of welding a welding part of the main case body and the exterior member from a rear side of the main case body with laser light such that the main case body and the exterior member adhere to each other,
wherein:
an irradiation surface of the welding part to be irradiated with the laser light is oblique to a height direction of a column shape of the case that includes the main case body and the exterior member and perpendicular to the laser light that is incident on the irradiation surface; or
the irradiation surface of the welding part is an almost vertical surface extending along the height direction of the column shape of the case that includes the main case body and the exterior member, the laser light is irradiated obliquely at a predetermined incidence angle with respect to the irradiation surface, and a reflected-light receiving part is formed at a position on which a reflected light from the irradiation surface arrives.