ວິທີການເພື່ອຜະລິດຊັບສະເຕຣດແກ້ວ ແລະ ວິທີການເພື່ອຜະລິດແຜ່ນດິສແມ່ເຫຼັກ
This Laos Patent “MANUFACTURING METHOD FOR GLASS SUBSTRATE AND MANUFACTURING METHOD FOR MAGNETIC DISC” is a public DIP intellectual-property record, filed by HOYACORPORATION on 2019-07-26; current status: Registered. Identifiers include application No. P/756; DIP id LAP756; protection kind Patent - PCT National Phase. Key dates: publication 2026-01-23; grant 2026-01-08; expiry reference 2039-07-26. Classification: B23K 26/53. Inventor(s)/designer(s): Shuhei AZUMA. Abstract hint: A method for manufacturing a glass substrate including an opening includes forming an inner circumferential portion and an outer circumfere…. Use LaoBiz.com to hop between this IP record, related filings by the same applicant, and the matched company profile when present.
P/756
Mark
Key facts
- Type
- Patent
- App. no.
P/756- Status
- Registered
- Applicant
- HOYACORPORATION
- Agent
- Tilleke & Gibbins International Ltd
- Filing date
- 2019-07-26
- Reg. no.
P/756- Publication
- 2026-01-23
- Registration / grant
- 2026-01-08
- Expiry
- 2039-07-26
- Protection kind
- Patent - PCT National Phase
- Gazette
- 338 · 2026-01-09
- Priority
- JP · PCT/2018/028269 · 2018-07-27
- Applicant address
- HOYACORPORATION · 6-10-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo 1608347, JAPAN · JP
- Agent address
- Tilleke & Gibbins International Ltd · No. 302/1B, 3rd Floor, Vieng Vang Tower, Unit 15, Boulichan Road, Dongpalan Thong Village, Sisattanak District, Vientiane Capital, Lao PDR · LA
- Nice / IPC classes
- B23K 26/53
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination
-
Substantive examination
-
Published
-
Granted
Related records
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Abstract
ວິທີການເພື່ອຜະລິດຊັບສະເຕຣດແກ້ວ ລວມເຖິງປ໋ອງເປີດ ລວມມີການສ້າງສັດສ່ວນວົງມົນຮອບໃນ ແລະ ສັດສ່ວນວົງມົນຮອບນອກທີ່ຖືກສາຍດ້ວຍລໍາແສງເລເຊີ້ຕາມວົງມົນທີ່ມີຈຸດສູນກາງຢ່າງໝັ້ນຄົງໃນພື້ນຜິວຂອງແກ້ວວ່າງເປົ່າທີ່ຊັບສະເຕຣດແກ້ວໄດ້ມາ, ການແຍກສັດສ່ວນທາງດ້ານໃນຂອງສັດສ່່ວນວົງມົນຮອບນອກຂອງແກ້ວວ່າງເປົ່າ ແລະ ສັດສ່ວນທາງດ້ານນອກຂອງສັດສ່ວນວົງມົນຮອບນອກ ອອກຈາກກັນ ໂດຍການເຮັດໃຫ້ສັດສ່ວນທາງດ້ານນອກຂອງສັດສ່ວນວົງມົນຮອບນອກຮ້ອນຂື້ນ ເພື່ອເຮັດໃຫ້ເກີດການຂະຫຍາຍຄວາມຮ້ອນຂອງສັດສ່ວນທາງດ້ານນອກຂອງສັດສ່ວນວົງມົນຮອບນອກຂອງ ຊຶ່ງກ່ຽວຂ້ອງກັບສັດສ່ວນທາງດ້ານໃນຂອງສັດສ່ວນວົງມົນຮອບນອກ ແລະ ສ້າງຊ່ອງວ່າງໃນສັດສ່ວນວົງມົນຮອບນອກ, ແລະ ການແຍກສັດສ່ວນທາງດ້ານໃນຂອງສັດສ່ວນວົງມົນຮອບໃນຂອງແກ້ວວ່າງເປົ່າ ແລະ ສັດສ່ວນທາງດ້ານນອກຂອງສັດສ່ວນວົງມົນຮອບໃນອອກຈາກກັນ ໂດຍການເຮັດໃຫ້ສັດສ່ວນທາງດ້ານນອກຂອງສັດສວ່ນວົງມົນຮອບໃນນໍຮ້ອນຂື້ນ ເພື່ອເຮັດໃຫ້ການຂະຫຍາຍຄວາມຮ້ອນທີ່ກ່ຽວຂ້ອງຂອງສັດສ່ວນທາງດ້ານນນອກຂອງສັດສ່ວນວົງມົນຮອບໃນ ແລະ ສ້າງຊ່ອງວ່າງໃນສັດສ່ວນວົງມົນຮອບໃນ.
A method for manufacturing a glass substrate including an opening includes forming an inner circumferential portion and an outer circumferential portion that are irradiated with a laser
beam along substantially concentric circles in a surface of a glass blank from which the glass substrate is obtained separating a portion on an inner side ofthe outer circumferential glass blank and a portion on an outer side of the outer circumferential portion from each other by heating the portion on the outer side of the outer circumferential portion to cause thermal expansion of the portion on the outer side ofthe outer circumferential portion relative to the portion on the
inner side of the outer circumferential portion and form a gap in the outer circumferential portion, and separating a portion on an inner side of the inner circumferential portion of the glass blank
and a portion on an outer side of the inner circumferential portion from each other by heating the portion on the outer side of the inner circumferential portion to cause relative thermal expansion of the portion on the outer side of the inner circumferential portion and form a the inner circumferential portion. portion of the gap in
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