JPS5144917A - - Google Patents
Info
- Publication number
- JPS5144917A JPS5144917A JP50090355A JP9035575A JPS5144917A JP S5144917 A JPS5144917 A JP S5144917A JP 50090355 A JP50090355 A JP 50090355A JP 9035575 A JP9035575 A JP 9035575A JP S5144917 A JPS5144917 A JP S5144917A
- 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.)
- Granted
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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
-
- 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
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
-
- 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
- Y10T29/4906—Providing winding
- Y10T29/49064—Providing winding by coating
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US498504A US3908194A (en) | 1974-08-19 | 1974-08-19 | Integrated magnetoresistive read, inductive write, batch fabricated magnetic head |
US498504 | 1990-03-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5144917A true JPS5144917A (ja) | 1976-04-16 |
JPS5935088B2 JPS5935088B2 (ja) | 1984-08-27 |
Family
ID=23981361
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50090355A Expired JPS5935088B2 (ja) | 1974-08-19 | 1975-07-25 | 磁気ヘツド |
JP6055679A Pending JPS5525886A (en) | 1974-08-19 | 1979-05-18 | Producing magnetic head |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6055679A Pending JPS5525886A (en) | 1974-08-19 | 1979-05-18 | Producing magnetic head |
Country Status (17)
Country | Link |
---|---|
US (1) | US3908194A (ja) |
JP (2) | JPS5935088B2 (ja) |
BE (1) | BE830432A (ja) |
BR (1) | BR7505283A (ja) |
CA (1) | CA1039849A (ja) |
CH (1) | CH586443A5 (ja) |
DD (1) | DD121849A5 (ja) |
DE (1) | DE2527934C2 (ja) |
ES (1) | ES440136A1 (ja) |
FR (1) | FR2282689A1 (ja) |
GB (1) | GB1479360A (ja) |
IT (1) | IT1039310B (ja) |
NL (1) | NL172894C (ja) |
SE (1) | SE408494B (ja) |
SU (1) | SU906396A3 (ja) |
YU (1) | YU201775A (ja) |
ZA (1) | ZA755016B (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5215217U (ja) * | 1975-07-21 | 1977-02-03 | ||
JPS5449109A (en) * | 1977-09-02 | 1979-04-18 | Magnex Corp | Head of magnetic transducer and its preparation |
JPS5616932A (en) * | 1979-07-18 | 1981-02-18 | Olympus Optical Co Ltd | Recording and reproducing head for vertical magnetic recording and manufacture of this recording and reproducing head and recording and reproducing unit using this recording and reproducing head |
JPS5856223A (ja) * | 1981-09-29 | 1983-04-02 | Sharp Corp | 薄膜磁気ヘツド |
US5218497A (en) * | 1988-12-02 | 1993-06-08 | Hitachi, Ltd. | Magnetic recording-reproducing apparatus and magnetoresistive head having two or more magnetoresistive films for use therewith |
US5390061A (en) * | 1990-06-08 | 1995-02-14 | Hitachi, Ltd. | Multilayer magnetoresistance effect-type magnetic head |
US5723198A (en) * | 1993-06-11 | 1998-03-03 | Hitachi, Ltd. | Multi-layered magnetic recording medium and magnetic recording system employing the same |
US6111723A (en) * | 1990-04-16 | 2000-08-29 | Hitachi, Ltd. | Narrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layer |
Families Citing this family (94)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4065797A (en) * | 1974-12-20 | 1977-12-27 | Matsushita Electric Industrial Co., Ltd. | Multi-element magnetic head |
US3975772A (en) * | 1975-06-02 | 1976-08-17 | International Business Machines Corporation | Double shielded magnetorestive sensing element |
US4176362A (en) * | 1975-07-10 | 1979-11-27 | Am International, Inc. | High density magnetic image recording head |
US4044392A (en) * | 1975-08-14 | 1977-08-23 | International Business Machines Corporation | Process for making a read-while-write tape head and the product made thereby |
JPS52119213A (en) * | 1976-03-30 | 1977-10-06 | Matsushita Electric Ind Co Ltd | Magnetic head and its production |
US4052749A (en) * | 1976-05-19 | 1977-10-04 | Matsushita Electric Industrial Co., Ltd. | Thin film magnetic head |
US4321641A (en) * | 1977-09-02 | 1982-03-23 | Magnex Corporation | Thin film magnetic recording heads |
US4489484A (en) * | 1977-09-02 | 1984-12-25 | Lee Fred S | Method of making thin film magnetic recording heads |
US4195323A (en) * | 1977-09-02 | 1980-03-25 | Magnex Corporation | Thin film magnetic recording heads |
JPS54119220A (en) * | 1978-03-08 | 1979-09-17 | Olympus Optical Co Ltd | Magnetic head |
US4219853A (en) * | 1978-12-21 | 1980-08-26 | International Business Machines Corporation | Read/write thin film head |
US4255772A (en) * | 1979-06-29 | 1981-03-10 | International Business Machines Corporation | Read/write magnetic head assembly with magnetoresistive sensor |
JPS56169171U (ja) * | 1980-05-20 | 1981-12-14 | ||
JPS56165922A (en) * | 1980-05-23 | 1981-12-19 | Matsushita Electric Ind Co Ltd | Production of magnetic head |
DE3266466D1 (en) * | 1981-03-17 | 1985-10-31 | Secr Defence Brit | Thin film magneto-resistive sensors and methods for their manufacture |
US4458279A (en) * | 1981-03-23 | 1984-07-03 | Magnex Corporation | Thin film transducer and method of making same |
JPS57189320A (en) * | 1981-05-15 | 1982-11-20 | Comput Basic Mach Technol Res Assoc | Thin film magnetic head |
US4823216A (en) * | 1987-10-23 | 1989-04-18 | Applied Magnetics Corporation | Microminimonolithic magnetic head slider |
US4972279A (en) * | 1981-10-23 | 1990-11-20 | Applied Magnetics Corporation | Microminimonolithic magnetic head slider |
US4520413A (en) * | 1982-04-13 | 1985-05-28 | Minnesota Mining And Manufacturing Company | Integrated magnetostrictive-piezoelectric-metal oxide semiconductor magnetic playback head |
US4499515A (en) * | 1982-07-14 | 1985-02-12 | Minnesota Mining And Manufacturing Company | Integrated magnetostrictive-piezoresistive magnetic recording playback head |
JPS5924403A (ja) * | 1982-07-30 | 1984-02-08 | Toshiba Corp | 回転型磁気ヘツド装置 |
US4504880A (en) * | 1982-08-09 | 1985-03-12 | International Business Machines Corporation | Integrated magnetic recording head assembly including an inductive write subassembly and a magnetoresistive read subassembly |
US4589043A (en) * | 1982-08-31 | 1986-05-13 | Grundtner Matthias J | Magnetic head having a thermoplastic or a thermosetting plastic housing |
US4668526A (en) * | 1982-08-31 | 1987-05-26 | Data Recording Technology Corporation | Method of making magnetic head for computers |
NL8301188A (nl) * | 1983-04-05 | 1984-11-01 | Philips Nv | Magneetkop met een dunne strook magnetoweerstandmateriaal als leeselement. |
US4639806A (en) * | 1983-09-09 | 1987-01-27 | Sharp Kabushiki Kaisha | Thin film magnetic head having a magnetized ferromagnetic film on the MR element |
US4783711A (en) * | 1985-07-12 | 1988-11-08 | Hitachi, Ltd. | Magnetoresistive sensor having magnetic shields of ferrite |
JPS6349988U (ja) * | 1986-09-18 | 1988-04-05 | ||
JPS63106910A (ja) * | 1986-10-24 | 1988-05-12 | Hitachi Ltd | 薄膜磁気ヘツド |
US4857418A (en) * | 1986-12-08 | 1989-08-15 | Honeywell Inc. | Resistive overlayer for magnetic films |
US4754431A (en) * | 1987-01-28 | 1988-06-28 | Honeywell Inc. | Vialess shorting bars for magnetoresistive devices |
US4967298A (en) * | 1987-02-17 | 1990-10-30 | Mowry Greg S | Magnetic head with magnetoresistive sensor, inductive write head, and shield |
US4885649A (en) * | 1987-04-01 | 1989-12-05 | Digital Equipment Corporation | Thin film head having a magneto-restrictive read element |
US5159511A (en) * | 1987-04-01 | 1992-10-27 | Digital Equipment Corporation | Biasing conductor for MR head |
US4849250A (en) * | 1988-01-27 | 1989-07-18 | Storage Technology Corporation | Method and apparatus for producing magnetically oriented films on substrates |
US4918655A (en) * | 1988-02-29 | 1990-04-17 | Honeywell Inc. | Magnetic device integrated circuit interconnection system |
US5075956A (en) * | 1988-03-16 | 1991-12-31 | Digital Equipment Corporation | Method of making recording heads with side shields |
US5081553A (en) * | 1988-03-31 | 1992-01-14 | Applied Magnetics Corporation | Combination of elongated load arm and microminimonolithic head slider |
US5124865A (en) * | 1988-03-31 | 1992-06-23 | Applied Magnetics Corporation | Microminimonolithic magnetic head slider having vertically extending slots to reduce flux leakage losses |
US4900650A (en) * | 1988-05-12 | 1990-02-13 | Digital Equipment Corporation | Method of producing a pole piece with improved magnetic domain structure |
JP2761223B2 (ja) * | 1988-09-30 | 1998-06-04 | 株式会社日立製作所 | 記録再生複合ヘッド及びその製造方法 |
US5227212A (en) * | 1989-03-16 | 1993-07-13 | International Business Machines Corporation | Magnetic recording disk, magnetoresistive read head, inductive write head combination |
NL8902569A (nl) * | 1989-10-17 | 1991-05-16 | Philips Nv | Dunnefilm magneetkop. |
JPH04351706A (ja) * | 1991-05-30 | 1992-12-07 | Matsushita Electric Ind Co Ltd | 複合型薄膜磁気ヘッド |
US5241439A (en) * | 1991-07-02 | 1993-08-31 | U.S. Philips Corporation | Combined read/write thin film magnetic head with two pairs of flux guides |
US5270895A (en) * | 1991-07-05 | 1993-12-14 | U.S. Philips Corporation | Combined read/write thin-film magnetic head with composite shared flux guide |
US5212611A (en) * | 1991-07-16 | 1993-05-18 | Storage Technology Corporation | Integral read/write recording head with dual gap dimension |
US5206774A (en) * | 1991-07-26 | 1993-04-27 | Storage Technology Corporation | Process for making a magneto-resistive magnetic transducer having increased sensitivity and an improved flux path and the product made thereby |
JP2662334B2 (ja) * | 1992-01-28 | 1997-10-08 | ティーディーケイ株式会社 | 薄膜磁気ヘッド |
JP3099928B2 (ja) * | 1992-07-07 | 2000-10-16 | ティーディーケイ株式会社 | 磁気ディスク装置 |
US5326429A (en) * | 1992-07-21 | 1994-07-05 | Seagate Technology, Inc. | Process for making studless thin film magnetic head |
US5820770A (en) * | 1992-07-21 | 1998-10-13 | Seagate Technology, Inc. | Thin film magnetic head including vias formed in alumina layer and process for making the same |
US5945007A (en) | 1992-10-20 | 1999-08-31 | Cohen; Uri | Method for etching gap-vias in a magnetic thin film head and product |
US5778514A (en) * | 1993-01-06 | 1998-07-14 | Das Devices, Inc. | Method for forming a transducing head |
JP2584179B2 (ja) * | 1993-01-14 | 1997-02-19 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 高透磁率Fe基合金 |
US5455730A (en) * | 1993-02-18 | 1995-10-03 | International Business Machines Corporation | Contact magnetic recording disk file with a magnetoresistive read sensor |
JPH06259729A (ja) * | 1993-03-03 | 1994-09-16 | Tdk Corp | 磁気ヘッド |
EP0689707A4 (en) * | 1993-03-16 | 1996-05-29 | Shyam C Das | HYBRID READ-WRITE HEAD OBTAINED BY GAP AND THIN-LAYER METAL PROCESSES |
JP2784457B2 (ja) * | 1993-06-11 | 1998-08-06 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 磁気抵抗センサ装置 |
JP2571347B2 (ja) * | 1993-07-19 | 1997-01-16 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 磁気抵抗変換器及び磁気記憶システム |
JP2854513B2 (ja) * | 1993-10-21 | 1999-02-03 | アルプス電気株式会社 | 複合型薄膜磁気ヘッド及びその製造方法 |
US5486968A (en) * | 1993-11-10 | 1996-01-23 | International Business Machines Corporation | Method and apparatus for simultaneous write head planarization and lead routing |
JP2731506B2 (ja) * | 1993-11-22 | 1998-03-25 | 富士通株式会社 | 磁気抵抗効果型磁気ヘッド及びその製造方法 |
US5435053A (en) * | 1994-03-02 | 1995-07-25 | International Business Machines Corporation | Simplified method of making merged MR head |
JPH07334819A (ja) * | 1994-06-07 | 1995-12-22 | Alps Electric Co Ltd | 薄膜磁気ヘッド |
JPH0845030A (ja) * | 1994-08-03 | 1996-02-16 | Alps Electric Co Ltd | 磁気抵抗効果型磁気ヘッド |
US5539596A (en) * | 1994-12-29 | 1996-07-23 | International Business Machines Corporation | Integrated suspension, actuator arm and coil assembly with common structural support layer |
JPH08279117A (ja) * | 1995-04-03 | 1996-10-22 | Alps Electric Co Ltd | 巨大磁気抵抗効果材料膜およびその製造方法とそれを用いた磁気ヘッド |
JPH0916925A (ja) * | 1995-06-28 | 1997-01-17 | Yamaha Corp | 誘導型・mr型複合磁気ヘッドおよびその製造方法 |
US5650606A (en) * | 1995-08-07 | 1997-07-22 | Magnetic Products International, Corp | Accurate read/write head for preventing credit card alteration and counterfeiting of debit cards |
US5909344A (en) * | 1995-11-30 | 1999-06-01 | International Business Machines Corporation | Magnetoresistive sensor with high resistivity flux guide |
JP2947172B2 (ja) * | 1996-05-23 | 1999-09-13 | ヤマハ株式会社 | 磁気抵抗効果型薄膜磁気ヘッド、誘導型・磁気抵抗効果型複合磁気ヘッド、磁気抵抗効果型薄膜磁気ヘッドの製造方法 |
JP3420896B2 (ja) * | 1996-09-10 | 2003-06-30 | アルプス電気株式会社 | 薄膜磁気ヘッドおよびその製造方法 |
JPH1083517A (ja) * | 1996-09-10 | 1998-03-31 | Alps Electric Co Ltd | 薄膜磁気ヘッド及びその製造方法 |
US7116527B1 (en) * | 1996-09-30 | 2006-10-03 | Kabushiki Kaisha Toshiba | Magnetoresistance effect device having hard magnetic film structural body |
SG71751A1 (en) | 1997-01-25 | 2000-04-18 | Tdk Corp | Thin film magnetic head and method of manufacturing the same |
JPH10247305A (ja) * | 1997-03-03 | 1998-09-14 | Sanyo Electric Co Ltd | 複合型薄膜磁気ヘッドの製造方法 |
JP3155234B2 (ja) | 1997-09-17 | 2001-04-09 | アルプス電気株式会社 | 薄膜磁気ヘッドおよびその製造方法 |
US6392840B1 (en) | 1997-12-08 | 2002-05-21 | International Business Machines Corporation | Planarized side by side design of an inductive writer and single metallic magnetoresistive reader |
JP3188232B2 (ja) | 1997-12-09 | 2001-07-16 | アルプス電気株式会社 | 薄膜磁気ヘッドおよびその製造方法 |
US6317289B1 (en) * | 1998-04-17 | 2001-11-13 | Tdk Corporation | Combination-type thin film magnetic head with improved writing properties |
JP2000048327A (ja) | 1998-07-31 | 2000-02-18 | Alps Electric Co Ltd | 薄膜磁気ヘッド |
US6407891B1 (en) * | 1999-05-24 | 2002-06-18 | International Business Machines Corporation | Magnetic read/write head having electromagnetic field cancellation element |
US6324036B1 (en) | 1999-05-26 | 2001-11-27 | International Business Machines Corporation | Combination inductive write head and magnetoresistive (MR) read head with improved topography |
US6452742B1 (en) | 1999-09-02 | 2002-09-17 | Read-Rite Corporation | Thin film write having reduced resistance conductor coil partially recessed within middle coat insulation |
US6600636B1 (en) | 1999-10-12 | 2003-07-29 | Maxtor Corporation | Magnetic head with write element offset from read element |
US6453542B1 (en) * | 2000-02-28 | 2002-09-24 | Headway Technologies, Inc. | Method for fabricating balanced shield connections for noise reduction in MR/GMR read heads |
US6519124B1 (en) | 2000-03-27 | 2003-02-11 | Tdk Corporation | Magnetic tunnel junction read head using a hybrid, low-magnetization flux guide |
KR20020091930A (ko) * | 2001-06-01 | 2002-12-11 | 삼성전기주식회사 | 평면 자기저항 소자 제조방법 |
US20060262593A1 (en) * | 2004-07-27 | 2006-11-23 | Stephane Aouba | Magnetic memory composition and method of manufacture |
TW200617952A (en) * | 2004-07-27 | 2006-06-01 | Univ Toronto | Tunable magnetic switch |
US7701756B2 (en) | 2005-12-21 | 2010-04-20 | Governing Council Of The University Of Toronto | Magnetic memory composition and method of manufacture |
US8472146B2 (en) * | 2010-08-27 | 2013-06-25 | HGST Netherlands B.V. | Current perpendicular magnetoresistive sensor with a dummy shield for capacitance balancing |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS421011Y1 (ja) * | 1966-08-22 | 1967-01-20 | ||
JPS4974523A (ja) * | 1972-10-11 | 1974-07-18 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1952402A1 (de) * | 1969-10-17 | 1971-04-22 | Philips Patentverwaltung | Magnetkopf |
BE758053A (fr) * | 1969-10-28 | 1971-04-01 | Commissariat Energie Atomique | Tete magnetique integree et procede de fabrication de ladite tete |
GB1272044A (en) * | 1971-02-22 | 1972-04-26 | Mullard Ltd | Improvements in or relating to magnetoresistive readout transducers |
US3787964A (en) * | 1971-12-23 | 1974-01-29 | Ibm | Method for manufacturing a magnetic head |
FR2191186B1 (ja) * | 1972-07-03 | 1976-01-16 | Inf Ci Interna Fr | |
US3814863A (en) * | 1972-10-11 | 1974-06-04 | Ibm | Internally biased magnetoresistive magnetic transducer |
US3840898A (en) * | 1972-12-29 | 1974-10-08 | Ibm | Self-biased magnetoresistive sensor |
-
1974
- 1974-08-19 US US498504A patent/US3908194A/en not_active Expired - Lifetime
-
1975
- 1975-06-09 FR FR7518986A patent/FR2282689A1/fr active Granted
- 1975-06-19 BE BE157500A patent/BE830432A/xx not_active IP Right Cessation
- 1975-06-23 DE DE2527934A patent/DE2527934C2/de not_active Expired
- 1975-06-23 IT IT24649/75A patent/IT1039310B/it active
- 1975-07-04 CH CH873475A patent/CH586443A5/xx not_active IP Right Cessation
- 1975-07-17 SE SE7508178A patent/SE408494B/xx not_active IP Right Cessation
- 1975-07-24 CA CA232,202A patent/CA1039849A/en not_active Expired
- 1975-07-25 JP JP50090355A patent/JPS5935088B2/ja not_active Expired
- 1975-08-04 ZA ZA755016A patent/ZA755016B/xx unknown
- 1975-08-05 GB GB32607/75A patent/GB1479360A/en not_active Expired
- 1975-08-06 YU YU02017/75A patent/YU201775A/xx unknown
- 1975-08-08 ES ES440136A patent/ES440136A1/es not_active Expired
- 1975-08-15 NL NLAANVRAGE7509732,A patent/NL172894C/xx not_active IP Right Cessation
- 1975-08-18 SU SU752163208A patent/SU906396A3/ru active
- 1975-08-18 DD DD187918A patent/DD121849A5/xx unknown
- 1975-08-19 BR BR7505283*A patent/BR7505283A/pt unknown
-
1979
- 1979-05-18 JP JP6055679A patent/JPS5525886A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS421011Y1 (ja) * | 1966-08-22 | 1967-01-20 | ||
JPS4974523A (ja) * | 1972-10-11 | 1974-07-18 |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5215217U (ja) * | 1975-07-21 | 1977-02-03 | ||
JPS5635942Y2 (ja) * | 1975-07-21 | 1981-08-24 | ||
JPS5449109A (en) * | 1977-09-02 | 1979-04-18 | Magnex Corp | Head of magnetic transducer and its preparation |
JPS5616932A (en) * | 1979-07-18 | 1981-02-18 | Olympus Optical Co Ltd | Recording and reproducing head for vertical magnetic recording and manufacture of this recording and reproducing head and recording and reproducing unit using this recording and reproducing head |
JPS5856223A (ja) * | 1981-09-29 | 1983-04-02 | Sharp Corp | 薄膜磁気ヘツド |
US5218497A (en) * | 1988-12-02 | 1993-06-08 | Hitachi, Ltd. | Magnetic recording-reproducing apparatus and magnetoresistive head having two or more magnetoresistive films for use therewith |
US6111723A (en) * | 1990-04-16 | 2000-08-29 | Hitachi, Ltd. | Narrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layer |
US6665141B2 (en) | 1990-04-16 | 2003-12-16 | Hitachi, Ltd. | Magnetic head having track width defined by trench portions filled with magnetic shield material |
US6839200B2 (en) | 1990-04-16 | 2005-01-04 | Hitachi, Ltd. | Combination perpendicular magnetic head having shield material formed at both ends of an upper pole of a write element |
US6538844B2 (en) | 1990-04-16 | 2003-03-25 | Hitachi, Ltd. | Method of fabricating a magnetic head by focused ion beam etching |
US6307707B1 (en) | 1990-04-16 | 2001-10-23 | Hitachi, Ltd. | Narrow track thin film head including magnetic poles machined by focused ion beam etching |
US6278578B1 (en) | 1990-04-16 | 2001-08-21 | Hitachi, Ltd. | Narrow track thin film head having a focused ion beam etched air bearing surface |
US6278593B1 (en) | 1990-06-08 | 2001-08-21 | Hitachi, Ltd. | Magnetoresistance effect elements and magnetic heads using the tunneling magnetoresistive effect |
US5390061A (en) * | 1990-06-08 | 1995-02-14 | Hitachi, Ltd. | Multilayer magnetoresistance effect-type magnetic head |
US6483677B2 (en) | 1990-06-08 | 2002-11-19 | Hitachi, Ltd. | Magnetic disk apparatus including magnetic head having multilayered reproducing element using tunneling effect |
US6011674A (en) * | 1990-06-08 | 2000-01-04 | Hitachi, Ltd. | Magnetoresistance effect multilayer film with ferromagnetic film sublayers of different ferromagnetic material compositions |
US6687099B2 (en) | 1990-06-08 | 2004-02-03 | Hitachi, Ltd. | Magnetic head with conductors formed on endlayers of a multilayer film having magnetic layer coercive force difference |
US5726837A (en) * | 1990-06-08 | 1998-03-10 | Hitachi, Ltd. | Multilayer magnetoresistance effect-type magnetic head |
US7054120B2 (en) | 1990-06-08 | 2006-05-30 | Hitachi Global Storage Technologies Japan, Ltd. | Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effect |
US7159303B2 (en) | 1990-06-08 | 2007-01-09 | Hitachi Global Storage Technologies, Ltd. | Method for manufacturing magnetic head device |
US7292417B2 (en) | 1990-06-08 | 2007-11-06 | Hitachi Global Storage Technologies Japan, Ltd. | Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effect |
US5723198A (en) * | 1993-06-11 | 1998-03-03 | Hitachi, Ltd. | Multi-layered magnetic recording medium and magnetic recording system employing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS5935088B2 (ja) | 1984-08-27 |
BE830432A (fr) | 1975-10-16 |
IT1039310B (it) | 1979-12-10 |
JPS5525886A (en) | 1980-02-23 |
SE408494B (sv) | 1979-06-11 |
SU906396A3 (ru) | 1982-02-15 |
SE7508178L (sv) | 1976-02-20 |
YU201775A (en) | 1982-02-28 |
ZA755016B (en) | 1977-03-30 |
CA1039849A (en) | 1978-10-03 |
DD121849A5 (ja) | 1976-08-20 |
DE2527934A1 (de) | 1976-03-04 |
BR7505283A (pt) | 1976-08-03 |
CH586443A5 (ja) | 1977-03-31 |
NL172894C (nl) | 1983-11-01 |
FR2282689A1 (fr) | 1976-03-19 |
ES440136A1 (es) | 1977-06-01 |
DE2527934C2 (de) | 1983-03-31 |
NL7509732A (nl) | 1976-02-23 |
AU8408975A (en) | 1977-02-24 |
GB1479360A (en) | 1977-07-13 |
FR2282689B1 (ja) | 1977-07-22 |
US3908194A (en) | 1975-09-23 |