SUBSTRATE FOR MAGNETIC DISKS, AND MAGNETIC DISK
This Laos Patent “SUBSTRATE FOR MAGNETIC DISKS, AND MAGNETIC DISK” is a public DIP intellectual-property record, filed by HOYA CORPORATION on 2018-07-02; current status: Registered. Identifiers include application No. P/684; DIP id LAP684; protection kind Patent - PCT National Phase. Key dates: publication 2022-10-07; grant 2022-10-04; expiry reference 2038-07-02. Classification: G11B 5/73. Inventor(s)/designer(s): OSAKABE Kinobu. Abstract hint: This substrate for magnetic disks is provided with: a substrate main body having two main surfaces; and films of a material having a loss c…. Use LaoBiz.com to hop between this IP record, related filings by the same applicant, and the matched company profile when present.
P/684
Mark
Key facts
- Type
- Patent
- App. no.
P/684- Status
- Registered
- Applicant
- HOYA CORPORATION
- Agent
- Tilleke & Gibbins International Ltd
- Filing date
- 2018-07-02
- Reg. no.
P/684- Publication
- 2022-10-07
- Registration / grant
- 2022-10-04
- Expiry
- 2038-07-02
- Protection kind
- Patent - PCT National Phase
- Gazette
- 175 · 2022-10-07
- Applicant address
- HOYA CORPORATION · 6-10-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo 1608347 · 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
- G11B 5/73
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination
-
Substantive examination
-
Published
-
Granted
Related records
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Abstract
This substrate for magnetic disks is provided with: a substrate main body having two main surfaces; and films of a material having a loss coefficient of 0.1 or more, said films being arranged on the main surfaces. The thickness T of this substrate for magnetic disks including the films is 0.700 mm or less; and the thickness D (mm) of the films, which are arranged on the main surfaces, and the thickness T (mm) of this substrate for magnetic disks including the films satisfy the relational expression D ≥ 0.0082/T - 0.0015.
This substrate for magnetic disks is provided with: a substrate main body having two main surfaces; and films of a material having a loss coefficient of 0.1 or more, said films being arranged on the main surfaces. The thickness T of this substrate for magnetic disks including the films is 0.700 mm or less; and the thickness D (mm) of the films, which are arranged on the main surfaces, and the thickness T (mm) of this substrate for magnetic disks including the films satisfy the relational expression D ≥ 0.0082/T - 0.0015.
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