FR2166372B1 - - Google Patents
Info
- Publication number
- FR2166372B1 FR2166372B1 FR7245983A FR7245983A FR2166372B1 FR 2166372 B1 FR2166372 B1 FR 2166372B1 FR 7245983 A FR7245983 A FR 7245983A FR 7245983 A FR7245983 A FR 7245983A FR 2166372 B1 FR2166372 B1 FR 2166372B1
- Authority
- FR
- France
- 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.)
- Expired
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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/1871—Shaping or contouring of the transducing or guiding surface
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/37—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using galvano-magnetic devices, e.g. Hall-effect devices using Hall or Hall-related effect, e.g. planar-Hall effect or pseudo-Hall effect
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Hall/Mr Elements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47001722A JPS5229607B2 (US06265458-20010724-C00056.png) | 1972-01-01 | 1972-01-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2166372A1 FR2166372A1 (US06265458-20010724-C00056.png) | 1973-08-17 |
| FR2166372B1 true FR2166372B1 (US06265458-20010724-C00056.png) | 1976-10-29 |
Family
ID=11509443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7245983A Expired FR2166372B1 (US06265458-20010724-C00056.png) | 1972-01-01 | 1972-12-22 |
Country Status (6)
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3821815A (en) * | 1972-10-11 | 1974-06-28 | Ibm | Apparatus for batch fabricating magnetic film heads and method therefor |
| NL7406962A (nl) * | 1974-05-24 | 1975-11-26 | Philips Nv | Magneetkop welke gebruik maakt van een mag- neetveldgevoelig element en werkwijze voor het vervaardigen daarvan. |
| JPS5347813A (en) * | 1977-10-19 | 1978-04-28 | Hitachi Ltd | Production of magnetic reproducing head of hall effect |
| JPS5585578U (US06265458-20010724-C00056.png) * | 1978-12-08 | 1980-06-12 | ||
| JPS5671819A (en) * | 1979-11-14 | 1981-06-15 | Olympus Optical Co Ltd | Multichannel magnetic head and its manufacture |
| JPS56101617A (en) * | 1980-01-18 | 1981-08-14 | Olympus Optical Co Ltd | Multichannel magnetic head and its manufacture |
| JPS6025695Y2 (ja) * | 1980-02-25 | 1985-08-02 | 松下電器産業株式会社 | 磁気抵抗効果型磁気ヘッド |
| JPS5718018A (en) * | 1980-07-07 | 1982-01-29 | Olympus Optical Co Ltd | Magnetic head |
| US4511942A (en) * | 1982-05-07 | 1985-04-16 | Computer & Communications Technology Corp. | Automatic throat height control for film heads |
| US4841625A (en) * | 1982-05-07 | 1989-06-27 | Computer And Communications Technology Corporation | Automatic throat height control for film head |
| US4559743A (en) * | 1982-09-30 | 1985-12-24 | Magnetic Peripherals, Inc. | Method for calibrating a machining sensor |
| DE3333369A1 (de) * | 1982-09-30 | 1984-04-05 | Magnetic Peripherals Inc., Minneapolis, Minn. | Verfahren zum eichen eines bearbeitungsfuehlers |
| US4675986A (en) * | 1985-07-29 | 1987-06-30 | International Business Machines | Electrical lapping guide for controlling the batch fabrication of thin film magnetic transducers |
| US4670732A (en) * | 1985-08-15 | 1987-06-02 | International Business Machines | Electrical lapping guide resistor |
| US4689877A (en) * | 1985-08-29 | 1987-09-01 | International Business Machines Corp. | Method and apparatus for controlling the throat height of batch fabricated thin film magnetic transducers |
| US4878315A (en) * | 1985-09-03 | 1989-11-07 | The Charles Stark Draper Laboratory, Inc. | Griding guide and method |
| US4748773A (en) * | 1985-09-03 | 1988-06-07 | The Charles Stark Draper Laboratory, Inc. | Biased grinding assembly |
| US4861398A (en) * | 1987-12-04 | 1989-08-29 | Hitachi, Ltd. | Method for making a thin film magnetic head |
| US4912883A (en) * | 1989-02-13 | 1990-04-03 | International Business Machines Corporation | Lapping control system for magnetic transducers |
| JP2540268B2 (ja) * | 1992-05-12 | 1996-10-02 | 日本碍子株式会社 | 磁気ヘッド用コア形成材の研磨方法 |
| US5265378A (en) * | 1992-07-10 | 1993-11-30 | Lsi Logic Corporation | Detecting the endpoint of chem-mech polishing and resulting semiconductor device |
| US5588199A (en) * | 1994-11-14 | 1996-12-31 | International Business Machines Corporation | Lapping process for a single element magnetoresistive head |
| JPH11501442A (ja) * | 1995-12-27 | 1999-02-02 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | 磁気ヘッドの製造方法およびこの製造方法によって製造された磁気ヘッド |
| JP2000251222A (ja) * | 1999-02-26 | 2000-09-14 | Tdk Corp | 複合型薄膜磁気ヘッドの製造方法およびそれに用いるウエファ |
| JP2002260203A (ja) * | 2001-03-02 | 2002-09-13 | Tdk Corp | 薄膜磁気ヘッドの製造方法、及びウエハ構造 |
| US6950289B2 (en) * | 2001-03-16 | 2005-09-27 | Lafe Computer Magnetics Ltd. | Embedded lapping guide for a magnetic head cluster |
| US6700738B1 (en) | 2001-03-16 | 2004-03-02 | Kyusik Sin | Read/write head coil tap having upper and lower portions |
| JP4515420B2 (ja) * | 2006-08-01 | 2010-07-28 | セイコーインスツル株式会社 | 近接場光利用ヘッドの製造方法 |
| GB2478913A (en) * | 2010-03-22 | 2011-09-28 | Colorchip | Monitoring the production of an optical surface for a planar lightwave circuit. |
| JP2017037695A (ja) * | 2015-08-12 | 2017-02-16 | 株式会社東芝 | 磁気記録ヘッドの製造方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3597888A (en) * | 1968-09-19 | 1971-08-10 | Toyoda Machine Works Ltd | Grinding machine |
| US3775910A (en) * | 1970-06-19 | 1973-12-04 | Tokyo Seimitsu Co Ltd | Utomatic sizing device for measuring apparatus |
| US3699720A (en) * | 1971-04-26 | 1972-10-24 | Cincinnati Milacron Inc | Adaptive control for a grinding machine |
| JPS5224404B1 (US06265458-20010724-C00056.png) * | 1971-04-29 | 1977-07-01 | ||
| US3821815A (en) * | 1972-10-11 | 1974-06-28 | Ibm | Apparatus for batch fabricating magnetic film heads and method therefor |
-
1972
- 1972-01-01 JP JP47001722A patent/JPS5229607B2/ja not_active Expired
- 1972-12-18 US US05/316,153 patent/US4155106A/en not_active Expired - Lifetime
- 1972-12-20 GB GB5887472A patent/GB1412305A/en not_active Expired
- 1972-12-21 DE DE2262585A patent/DE2262585A1/de active Pending
- 1972-12-21 NL NL7217442A patent/NL7217442A/xx unknown
- 1972-12-22 FR FR7245983A patent/FR2166372B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2262585A1 (de) | 1974-07-11 |
| NL7217442A (US06265458-20010724-C00056.png) | 1973-07-03 |
| FR2166372A1 (US06265458-20010724-C00056.png) | 1973-08-17 |
| JPS5229607B2 (US06265458-20010724-C00056.png) | 1977-08-03 |
| GB1412305A (en) | 1975-11-05 |
| JPS4875015A (US06265458-20010724-C00056.png) | 1973-10-09 |
| US4155106A (en) | 1979-05-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |