ປະ​ເພດ​ຄຳ​ຮ້ອງ
Patent - Foreign
ປະ​ເພດ​ຄຳ​ຮ້ອງຍ່ອຍ
Patent - PCT National Phase
(10) ເລກທີ ແລະ ວັນທີການຈົດທະບຽນ
ສະຖານະ
Filed
(180) ມື້​ໝົດ​ອາຍຸ
(20) ​ເລກທີ ​ແລະ ມື້ ຍື່ນ​ຄຳ​ຮ້ອງ
LA P/782 2019.12.02
(40) ​ເລກທີ ​ແລະ ວັນ​ທີ​ເຜີຍ​ແຜ່
(86) ເລກທີ ແລະ ວັນທີ ເອກະສານ PCT
(87) and Date ເລກທີ ແລະ ວັນທີ່ ເຜີຍແຜ່ PCT
(85) ວັນ​ທີເອກະສານ​ເຂົ້າ
2021.05.24
(30) ລາຍລະອຽດບຸລິມະສິດ
(71/73) ຜູ້​ຍື່ນ​ຄຳ​ຮ້ອງ
(74) ຊຶ່ບໍລິສັດຕົວແທນ
(LA) Tilleke & Gibbins Lao Co., Ltd. : No. 302/1B, 3rd Floor, Vieng Vang Tower, Unit 15 Boulichan Road, Dongpalan Thong Village, Sisattanak District, Vientiane
(54) ຫົວຂໍ້
(LA) METHOD FOR MANUFACTURING GLASS PLATE, METHOD FOR CHAMFERING GLASS PLATE, AND METHOD FOR MANUFACTURING MAGNETIC DISK
(57) ບົດສັງເຂບ
(LA)

With a method for manufacturing a glass plate in which shape processing is performed on an edge surface of a glass plate having a disk shape, the disk-shaped glass plate has a main surface and an edge surface that is perpendicular to the main surface. The method includes a step of processing the edge surface into a target shape by irradiating the edge surface with a laser beam while moving the laser beam relative to the edge surface in a circumferential direction of the glass plate having the disk shape. A cross sectional intensity distribution of the laser beam with which the edge surface is irradiated is a single mode, and W1 > Th holds true and Pd x Th is in a range of 0.8 to 3.5 [W/mm] when a width of luminous flux of the laser beam in a thickness direction of the glass plate at an irradiation position of the edge surface is W1 [mm], a thickness of the glass plate is Th [mm], and a power density of the laser beam is Pd. 

(58) ການ​ຮຽກຮ້ອງ
ປະເພດຂອງເອກະສານ ວັນທີ ການດໍາເນີນການ
ຊື່ຂອງລາຍການວັນ​ທີສະຖານະ
Filing2019.12.02Filed
PCT National Phase Entry2021.05.24PCT National Phase
Filing2021.07.28Filed