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专利 已注册

GLASS FOR MAGNETIC RECORDING MEDIUM SUBSTRATE, MAGNETIC RECORDING MEDIUM SUBSTRATE, MAGNETIC RECORDING MEDIUM AND GLASS SPACER FOR MAGNETIC RECORDING AND REPRODUCING APPARATUS

Overview

关于老挝专利「GLASS FOR MAGNETIC RECORDING MEDIUM SUBSTRATE, MAGNETIC RECORDING MEDIUM SUBSTRATE, MAGNETIC RECORDING MEDIUM AND GLASS SPACER FOR MAGNETIC RECORDING AND REPRODUCING APPARATUS」，老商通整理了如下公开信息，由 HOYA CORPORATION 于 2022-10-12 提交申请，当前状态为已注册。关键编号与类型标注为 申请号 P/857 / DIP 编号 LAP857 / 主管局代码 LA / 保护类型 Patent - PCT National Phase。时间线要点：公开/公告日 2025-12-19；授权日 2025-04-22；届满/失效参考日 2042-10-12。国际分类 / IPC 标注为 C03C 3/085、C03C 3/087、C03C 3/091、G11B 5/73。发明人 / 设计人包括 HASHIMOTO Kazuaki、SATO Koichi。代理机构 / 代理人记载为 Tilleke & Gibbins International Ltd。公开摘要提示：Provided is a glass for magnetic recording rnedium substrate, which is an amorphous oxide glass, wherein, in terms of mol7o, an SiOz conten…。

专利 老挝 DIP

申请号 P/857
申请日期 2022-10-12
注册/授权日 2025-04-22
申请人 HOYA CORPORATION
代理机构 Tilleke & Gibbins International Ltd
类别 C03C 3/085 · C03C 3/087 · C03C 3/091 · G11B 5/73

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基础信息

类型
专利
申请号
P/857
状态
已注册
申请人
HOYA CORPORATION
代理机构
Tilleke & Gibbins International Ltd
申请日期
2022-10-12
注册号
P/857
公开/公告日
2025-12-19
注册/授权日
2025-04-22
届满日
2042-10-12
国际分类
C03C 3/085 · C03C 3/087 · C03C 3/091 · G11B 5/73
商品 / 服务
—

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摘要

Provided is a glass for magnetic recording rnedium substrate, which is an amorphous oxide glass, wherein, in terms of mol7o, an SiOz content ranges from 45 to 680/o; an AlzOr content ranges from 5 to 20o/o; a total content of SiOz and AlzOl ranges from 60 to 80o/r; a BzO: content ranges from 0 to 5o/o; an MgO content ranges from 3 to 28o/o; a CaO content ranges from 0 to I8%o; a total content of BaO and SrO ranges from 0 to 2o/o; a total content of alkali earth metal oxides ranges from 12 to 30o/o; a total content of alkali metal oxides ranges fi'om 3.5 to l5o/o; and at least one kind selected fi'orn the group consisting of Sn oxide and Ce oxide being included, a total content of Sn oxide and Ce oxide ranges from 0.05 to 2.00Yo, a glass transition temperature is equal to or higher than 625"C; a Young's modulus is equal to or more than 83 GPa; a specific gravity is equal to or less than 2.85; and an average linear expansion coeffrcient at 100 to 300oC is equal to or more than 48x l0'7 P

Provided is a glass for magnetic recording rnedium substrate, which is an amorphous oxide glass, wherein, in terms of mol7o, an SiOz content ranges from 45 to 680/o; an AlzOr content ranges from 5 to 20o/o; a total content of SiOz and AlzOl ranges from 60 to 80o/r; a BzO: content ranges from 0 to 5o/o; an MgO content ranges from 3 to 28o/o; a CaO content ranges from 0 to I8%o; a total content of BaO and SrO ranges from 0 to 2o/o; a total content of alkali earth metal oxides ranges from 12 to 30o/o; a total content of alkali metal oxides ranges fi'om 3.5 to l5o/o; and at least one kind selected fi'orn the group consisting of Sn oxide and Ce oxide being included, a total content of Sn oxide and Ce oxide ranges from 0.05 to 2.00Yo, a glass transition temperature is equal to or higher than 625"C; a Young's modulus is equal to or more than 83 GPa; a specific gravity is equal to or less than 2.85; and an average linear expansion coeffrcient at 100 to 300oC is equal to or more than 48x l0'7 P

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LaoBiz.com 是面向全球企业的老挝商业信息与市场研究平台，帮助企业更高效地了解老挝市场、发现商业机会并寻找潜在合作伙伴。平台商业信息主要来源于老挝政府主管机关维护的官方公开登记系统，包括工贸部 NED（企业注册）、BNED（经营许可）、eBRS（工商登记）与财政部 TaxRIS（税务登记），以及知识产权等相关官方公开渠道。LaoBiz.com 不创造或修改企业登记事实，而是在上述官方公开信息基础上，通过数据整理、标准化处理、多语言转换、行业分类和智能检索技术，让分散的信息更加易于查询、理解和应用。平台持续关注官方公开数据变化，并通过数据同步机制帮助用户获取企业最新公开状态。

LaoBiz.com is a Laos business-information and market-research platform for global companies—helping users understand the Lao market, discover opportunities and find potential partners more efficiently. Commercial records are drawn mainly from official public registry systems maintained by Lao competent authorities—including MoIC’s NED (enterprise registration), BNED (business licences) and eBRS (business registration), MoF’s TaxRIS (tax registration), and related official public channels such as intellectual-property filings. LaoBiz.com does not create or alter registry facts; on top of those official public records we organise, standardise, translate, classify by industry and index for search so fragmented filings are easier to find, understand and use. We continuously watch official public-data changes and offer sync tools so users can check an enterprise’s latest public status.

LaoBiz.com is a Laos business-information and market-research platform for global companies—helping users understand the Lao market, discover opportunities and find potential partners more efficiently. Commercial records are drawn mainly from official public registry systems maintained by Lao competent authorities—including MoIC’s NED (enterprise registration), BNED (business licences) and eBRS (business registration), MoF’s TaxRIS (tax registration), and related official public channels such as intellectual-property filings. LaoBiz.com does not create or alter registry facts; on top of those official public records we organise, standardise, translate, classify by industry and index for search so fragmented filings are easier to find, understand and use. We continuously watch official public-data changes and offer sync tools so users can check an enterprise’s latest public status.

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Each LaoBiz.com company profile offers “Sync latest data”. Users can actively request verification for a specific enterprise; the page is then refreshed from what the public systems return. Because company registration, tax status and related public filings are maintained by different authorities, update timing may vary. For business decisions, legal documents, government approvals and other formal uses, please rely on the latest information and official documents issued by the competent authority.

Each LaoBiz.com company profile offers “Sync latest data”. Users can actively request verification for a specific enterprise; the page is then refreshed from what the public systems return. Because company registration, tax status and related public filings are maintained by different authorities, update timing may vary. For business decisions, legal documents, government approvals and other formal uses, please rely on the latest information and official documents issued by the competent authority.

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LaoBiz.com 是独立运营的商业信息服务平台，不属于任何政府机构、登记机关或官方代理机构。平台专注于老挝商业信息整理、企业查询、市场研究和商业数据应用服务，帮助用户完成企业背景查询、行业市场分析、供应链及合作伙伴筛选与投资前期研究。同时，平台可根据用户需求提供老挝市场相关的信息整理、商务咨询及企业服务支持。

LaoBiz.com is an independently operated business information platform and is not a government body, registry office or official agent. We focus on organising Lao commercial information and on company lookup, market research and data-application services—helping users with company background checks, industry analysis, supplier and partner screening, and early-stage investment research. We can also provide Lao-market information support, business advisory and related enterprise services based on user needs.

LaoBiz.com is an independently operated business information platform and is not a government body, registry office or official agent. We focus on organising Lao commercial information and on company lookup, market research and data-application services—helping users with company background checks, industry analysis, supplier and partner screening, and early-stage investment research. We can also provide Lao-market information support, business advisory and related enterprise services based on user needs.

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Rights in Lao government-published registry information and related data remain with the competent authorities. LaoBiz.com does not claim exclusive ownership of raw government data; we provide organisation, search, multilingual presentation and application of open commercial information. If a rights holder believes content should be corrected or adjusted, please contact us through the site—we will process verified requests.

Rights in Lao government-published registry information and related data remain with the competent authorities. LaoBiz.com does not claim exclusive ownership of raw government data; we provide organisation, search, multilingual presentation and application of open commercial information. If a rights holder believes content should be corrected or adjusted, please contact us through the site—we will process verified requests.

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LaoBiz.com is operated by Shynease Global Holdings Limited (Hong Kong, company no. 80032364). The Terms of Service, orders and payments are governed by the laws of the Hong Kong SAR. Legal name, registered office and phone are on the legal-entity page. We organise Lao public commercial information and related market support, and follow applicable laws and public-information use rules.

LaoBiz.com is operated by Shynease Global Holdings Limited (Hong Kong, company no. 80032364). The Terms of Service, orders and payments are governed by the laws of the Hong Kong SAR. Legal name, registered office and phone are on the legal-entity page. We organise Lao public commercial information and related market support, and follow applicable laws and public-information use rules.

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