HK1018531A1 - Laser texturing of magnetic recording medium using multiple lens focusing - Google Patents
Laser texturing of magnetic recording medium using multiple lens focusingInfo
- Publication number
- HK1018531A1 HK1018531A1 HK99103597A HK99103597A HK1018531A1 HK 1018531 A1 HK1018531 A1 HK 1018531A1 HK 99103597 A HK99103597 A HK 99103597A HK 99103597 A HK99103597 A HK 99103597A HK 1018531 A1 HK1018531 A1 HK 1018531A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- recording medium
- magnetic recording
- multiple lens
- lens focusing
- laser texturing
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1996/006829 WO1997042628A1 (en) | 1996-05-09 | 1996-05-09 | Laser texturing of magnetic recording medium using multiple lens focusing |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1018531A1 true HK1018531A1 (en) | 1999-12-24 |
Family
ID=22255087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK99103597A HK1018531A1 (en) | 1996-05-09 | 1999-08-19 | Laser texturing of magnetic recording medium using multiple lens focusing |
Country Status (6)
Country | Link |
---|---|
US (1) | US5968608A (xx) |
EP (1) | EP0897576B1 (xx) |
JP (1) | JP3629275B2 (xx) |
DE (1) | DE69607218T2 (xx) |
HK (1) | HK1018531A1 (xx) |
WO (1) | WO1997042628A1 (xx) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6395349B1 (en) | 1999-05-25 | 2002-05-28 | Komag, Inc. | Method of marking disks |
US20030136505A1 (en) * | 2002-01-18 | 2003-07-24 | Wimmer Phillip L. | Method of preparing a surface for adhesion |
CN1962154A (zh) * | 2005-11-10 | 2007-05-16 | 鸿富锦精密工业(深圳)有限公司 | 模仁加工装置及加工方法 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3938878A (en) * | 1970-01-09 | 1976-02-17 | U.S. Philips Corporation | Light modulator |
FR2077738A1 (xx) * | 1970-02-10 | 1971-11-05 | Commissariat Energie Atomique | |
DE2102027C2 (de) * | 1971-01-16 | 1982-12-30 | Ibm Deutschland Gmbh, 7000 Stuttgart | Verfahren zur optischen Erkennung der Lage von Grenzlinien und Einrichtungen zur Durchfühung des Verfahrens |
US4060306A (en) * | 1974-12-16 | 1977-11-29 | American Optical Corporation | Achromatic aplanatic condenser |
US3988532A (en) * | 1975-04-02 | 1976-10-26 | Zenith Radio Corporation | Arrangement for compensating duty factor variations in an optical video disc |
FR2325951A1 (fr) * | 1975-09-29 | 1977-04-22 | Thomson Brandt | Procede de diminution de bruit optique et dispositif mettant en oeuvre un tel procede |
US4307408A (en) * | 1976-04-28 | 1981-12-22 | Canon Kabushiki Kaisha | Recording apparatus using coherent light |
JPS5885940A (ja) * | 1981-11-17 | 1983-05-23 | Hitachi Ltd | 光デイスクの自動焦点引込み方法 |
US5416755A (en) * | 1985-02-28 | 1995-05-16 | Canon Kabushiki Kaisha | Optical pickup using split beams impinging on different photo-detector areas |
US4724219A (en) * | 1986-07-16 | 1988-02-09 | Sprague Electric Company | Radiation melting of semiconductor surface areas through a remote mask |
US5120927A (en) * | 1988-06-03 | 1992-06-09 | Insite Peripherals, Inc. | High track density media with optical servo tracks and method and apparatus for inscribing the tracks on the media |
JPH083910B2 (ja) * | 1989-01-13 | 1996-01-17 | シャープ株式会社 | 光ピックアップ装置 |
US5352495A (en) * | 1989-02-16 | 1994-10-04 | The Wiggins Teape Group Limited | Treatment of a surface by laser energy |
US5202810A (en) * | 1989-04-27 | 1993-04-13 | Hitachi, Ltd. | Magnetic disk having an improved surface configuration |
US5062021A (en) * | 1990-03-12 | 1991-10-29 | Magnetic Peripherals Inc. | Selectively textured magnetic recording media |
US5166006A (en) * | 1991-06-03 | 1992-11-24 | Hmt Technology Corporation | Textured thin-film substrate and method |
JP3075381B2 (ja) * | 1992-02-17 | 2000-08-14 | 株式会社ニコン | 投影露光装置及び転写方法 |
DE69328385T2 (de) * | 1992-06-19 | 2000-10-19 | Sony Corp., Tokio/Tokyo | Optisches Abtastgerät |
TW300879B (xx) * | 1993-11-10 | 1997-03-21 | Ibm | |
US5614114A (en) * | 1994-07-18 | 1997-03-25 | Electro Scientific Industries, Inc. | Laser system and method for plating vias |
US5582878A (en) * | 1995-03-24 | 1996-12-10 | Showa Denko Kabushiki Kaisha | Process for producing magnetic recording medium |
US5691535A (en) * | 1996-02-08 | 1997-11-25 | Eastman Kodak Company | Ganged laser scanning system which corrects beam alignment along a bow-tie path |
US5783797A (en) * | 1996-05-09 | 1998-07-21 | Seagate Technology, Inc. | Laser texturing of magnetic recording medium using a crystal material |
US5980997A (en) * | 1996-06-03 | 1999-11-09 | Komag, Incorporated | Method for preparing a substrate for a magnetic disk |
-
1996
- 1996-05-09 DE DE69607218T patent/DE69607218T2/de not_active Expired - Fee Related
- 1996-05-09 EP EP96913998A patent/EP0897576B1/en not_active Expired - Lifetime
- 1996-05-09 WO PCT/US1996/006829 patent/WO1997042628A1/en active IP Right Grant
- 1996-05-09 US US08/666,374 patent/US5968608A/en not_active Expired - Fee Related
- 1996-05-09 JP JP53987497A patent/JP3629275B2/ja not_active Expired - Fee Related
-
1999
- 1999-08-19 HK HK99103597A patent/HK1018531A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69607218T2 (de) | 2000-07-13 |
EP0897576A1 (en) | 1999-02-24 |
WO1997042628A1 (en) | 1997-11-13 |
JP3629275B2 (ja) | 2005-03-16 |
EP0897576B1 (en) | 2000-03-15 |
JP2000509870A (ja) | 2000-08-02 |
DE69607218D1 (de) | 2000-04-20 |
US5968608A (en) | 1999-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20050509 |