SG86326A1 - Magnetic disk testing method and surface defect testing device - Google Patents
Magnetic disk testing method and surface defect testing deviceInfo
- Publication number
- SG86326A1 SG86326A1 SG9801511A SG1998001511A SG86326A1 SG 86326 A1 SG86326 A1 SG 86326A1 SG 9801511 A SG9801511 A SG 9801511A SG 1998001511 A SG1998001511 A SG 1998001511A SG 86326 A1 SG86326 A1 SG 86326A1
- Authority
- SG
- Singapore
- Prior art keywords
- magnetic disk
- surface defect
- testing device
- testing method
- testing
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18443297 | 1997-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG86326A1 true SG86326A1 (en) | 2002-02-19 |
Family
ID=16153058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG9801511A SG86326A1 (en) | 1997-06-25 | 1998-06-24 | Magnetic disk testing method and surface defect testing device |
Country Status (2)
Country | Link |
---|---|
MY (1) | MY117417A (en) |
SG (1) | SG86326A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4794265A (en) * | 1987-05-08 | 1988-12-27 | Qc Optics, Inc. | Surface pit detection system and method |
US5031112A (en) * | 1988-06-08 | 1991-07-09 | Dai Nippon Insatsu Kabushiki Kaisha | System for detecting defective portions in data recording portions of optical recording medium |
JPH03273141A (en) * | 1990-03-23 | 1991-12-04 | Hitachi Electron Eng Co Ltd | Defect detecting method for magnetic disk magnetic film and detection optical system |
US5423111A (en) * | 1992-09-22 | 1995-06-13 | Hitachi Electronics Engineering Co., Ltd. | Magnetic disk tester |
US5625193A (en) * | 1995-07-10 | 1997-04-29 | Qc Optics, Inc. | Optical inspection system and method for detecting flaws on a diffractive surface |
US5646415A (en) * | 1994-08-26 | 1997-07-08 | Sony Disc Technology Inc. | Apparatus for detecting a defect of an optical disc based on sensor outputs for adjacent positions |
US5818592A (en) * | 1997-02-07 | 1998-10-06 | Phase Metrics, Inc. | Non-contact optical glide tester |
-
1998
- 1998-06-23 MY MYPI9802849 patent/MY117417A/en unknown
- 1998-06-24 SG SG9801511A patent/SG86326A1/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4794265A (en) * | 1987-05-08 | 1988-12-27 | Qc Optics, Inc. | Surface pit detection system and method |
US5031112A (en) * | 1988-06-08 | 1991-07-09 | Dai Nippon Insatsu Kabushiki Kaisha | System for detecting defective portions in data recording portions of optical recording medium |
JPH03273141A (en) * | 1990-03-23 | 1991-12-04 | Hitachi Electron Eng Co Ltd | Defect detecting method for magnetic disk magnetic film and detection optical system |
US5423111A (en) * | 1992-09-22 | 1995-06-13 | Hitachi Electronics Engineering Co., Ltd. | Magnetic disk tester |
US5646415A (en) * | 1994-08-26 | 1997-07-08 | Sony Disc Technology Inc. | Apparatus for detecting a defect of an optical disc based on sensor outputs for adjacent positions |
US5625193A (en) * | 1995-07-10 | 1997-04-29 | Qc Optics, Inc. | Optical inspection system and method for detecting flaws on a diffractive surface |
US5818592A (en) * | 1997-02-07 | 1998-10-06 | Phase Metrics, Inc. | Non-contact optical glide tester |
Also Published As
Publication number | Publication date |
---|---|
MY117417A (en) | 2004-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
HK1042765B (en) | Recording device and recording method | |
SG40871A1 (en) | Method and apparatus for testing integrated magnetic head assembly | |
SG91914A1 (en) | Method of verifying defect management area information of disc and test apparatus for performing the same | |
EP0984727A4 (en) | Transvascular tmr device and method | |
AU8127498A (en) | Device and method for inspecting surface | |
SG115483A1 (en) | Apparatus for recording and/or reproducing in real time | |
GB9403184D0 (en) | Methods and apparatus for leak testing | |
HUP0003512A3 (en) | Device and method for pipeline inspection | |
GB2315336B (en) | Test method and device for screwers | |
DE69838897D1 (en) | Recording method and apparatus | |
EP1001249A4 (en) | Surface inspecting device and surface inspecting method | |
SG86329A1 (en) | Ic testing apparatus and method | |
SG94802A1 (en) | Method of verifying defect management area information of disc and test apparatus for performing the same | |
SG63791A1 (en) | Ic testing method and apparatus | |
SG111017A1 (en) | Method of verifying defect management area information of disc and test apparatus for performing the same | |
GB2335279B (en) | Leakage inspection method and apparatus | |
HK1018919A1 (en) | Coin testing apparatus and method | |
EP0695946A3 (en) | Methods and apparatus for armature testing | |
SG113387A1 (en) | Method of verifying defect management area information of disc and test apparatus for performing the same | |
GB2342454B (en) | Pipe testing apparatus and method | |
EP0927951A4 (en) | Magnetic recording medium and method for using the same | |
EP0944080A4 (en) | Recording/reproducing device and recording/reproducing method | |
GB9722760D0 (en) | Deadweight calculating apparatus and medium having program recorded thereon for calculating deadweight | |
HK1052400A1 (en) | Method and apparatus for playing dvd-audio disk | |
SG86326A1 (en) | Magnetic disk testing method and surface defect testing device |