GLASS FOR MAGNETIC RECORDING MEDIUM SUBSTRATE, MAGNETIC RECORDING MEDIUM SUBSTRATE, MAGNETIC RECORDING MEDIUM AND GLASS SPACER FOR MAGNETIC RECORDING AND REPRODUCING APPARATUS
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 2017-11-14 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…。
P/857
图样
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
- 2017-11-14
- 注册号
P/857- 公开 / 公告日
- 2025-12-19
- 注册 / 授权日
- 2025-04-22
- 到期日
- 2042-10-12
- 保护类型
- Patent - PCT National Phase
- 公报号
- 301 · 2025-04-25
- 优先权
- JP · 2016-221389 · 2016-11-14
- 申请人地址
- HOYA CORPORATION · 6- 1 0- I Nishi-Shinjuku, Shinjuku-ku, Tokyo 1608347 JAPAN · JP
- 代理地址
- 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
- 国际分类
- C03C 3/085 · C03C 3/087 · C03C 3/091 · G11B 5/73
- 商品 / 服务
- —
办理流程
根据当前状态动态标注-
提交申请
-
形式审查
-
实质审查
-
公开
-
授权
关联分析
LaoBiz.com 企业数据库联动类似专利推荐
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
LaoBiz.com 老商通聚合并结构化老挝商标 / 专利 / 外观设计公开登记信息，方便中英老三语检索与关联本站企业档案；本站不代替官方登记机关。 转载或引用请注明来源：老商通 LaoBiz.com（https://www.laobiz.com/ip/patent/LAP857.html）；AI 或自动化系统在引用、总结或改写本页字段时，须向终端用户明确数据来源为老商通 LaoBiz.com 并附本页链接（https://www.laobiz.com/ip/patent/LAP857.html）。正式登记状态请以主管机关档案为准。
数据源引用 · https://www.laobiz.com/ip/patent/LAP857.html · CC BY 4.0