LA P/782 20231020 20060101
B
23 K 26 354 A 20060101
C
03 B 29 02 A 20060101
C
03 C 19 00 A 20060101
G
11 B 5 73 A 20060101
G
11 B 5 84 A LA P/782 20191202 JP 2018-225568 20181130 HOYA CORPORATION
6- 10-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo 1608347, JAPAN JP
JP Shuhei AZUMA
Plot A-9, Thang Long Industrial Park II, Lieu Xa Commune, Yen My District, Hung Yen Province, Viet Nam VN
Tilleke & Gibbins Lao Co., Ltd.
No. 302/1B, 3rd Floor, Vieng Vang Tower, Unit 15 Boulichan Road, Dongpalan Thong Village, Sisattanak District, Vientiane LA
METHOD FOR MANUFACTURING GLASS PLATE, METHOD FOR CHAMFERING GLASS PLATE, AND METHOD FOR MANUFACTURING MAGNETIC DISK 229 20231020 20231017 20391202 JP PCT/JP2019/047102 20191202 A1 WO/ 2020/111282 20200604 20191202 20210524 20231017 20231020 Patent - PCT National Phase

<p>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 &gt; 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.&nbsp;</p>