JPS4611940B1 - - Google Patents
Info
- Publication number
- JPS4611940B1 JPS4611940B1 JP7535569A JP7535569A JPS4611940B1 JP S4611940 B1 JPS4611940 B1 JP S4611940B1 JP 7535569 A JP7535569 A JP 7535569A JP 7535569 A JP7535569 A JP 7535569A JP S4611940 B1 JPS4611940 B1 JP S4611940B1
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1207—Testing individual magnetic storage devices, e.g. records carriers or digital storage elements
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Measuring Magnetic Variables (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76801468A | 1968-10-16 | 1968-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4611940B1 true JPS4611940B1 (ja) | 1971-03-26 |
Family
ID=25081267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7535569A Pending JPS4611940B1 (ja) | 1968-10-16 | 1969-09-24 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3535622A (ja) |
| JP (1) | JPS4611940B1 (ja) |
| DE (1) | DE1951740A1 (ja) |
| FR (1) | FR2020787A1 (ja) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4657197A (en) * | 1983-10-07 | 1987-04-14 | American Multimedia, Inc. | Cassette tape loader apparatus for testing the presence of magnetic storage medium on a given side of a tape |
| US4578644A (en) * | 1983-10-07 | 1986-03-25 | American Multimedia, Inc. | Method and apparatus for testing the presence of magnetic storage medium on a given side of a tape |
| US4847558A (en) * | 1987-07-02 | 1989-07-11 | Seagate Technology, Inc. | Non-destructive method and apparatus using DC erase field for magnetic measurement of recording disc |
| US5587654A (en) * | 1993-04-09 | 1996-12-24 | Washington University | Method and apparatus for noise reduction in magnetic media recordings |
| US5959794A (en) * | 1993-04-09 | 1999-09-28 | Washington University | Method for precompensating signals for magnetic media noise |
| US5629620A (en) * | 1995-03-02 | 1997-05-13 | Eastman Kodak Company | Apparatus and method for measurement of magnetic remanence-thickness product of thin magnetic layers |
-
1968
- 1968-10-16 US US768014A patent/US3535622A/en not_active Expired - Lifetime
-
1969
- 1969-09-02 FR FR6930690A patent/FR2020787A1/fr not_active Withdrawn
- 1969-09-24 JP JP7535569A patent/JPS4611940B1/ja active Pending
- 1969-10-14 DE DE19691951740 patent/DE1951740A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2020787A1 (ja) | 1970-07-17 |
| DE1951740A1 (de) | 1970-06-18 |
| US3535622A (en) | 1970-10-20 |