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1. 发明专利

JP2004071735A Shield material 审中-公开
标题翻译：屏蔽材料
公开(公告)号：JP2004071735A
公开(公告)日：2004-03-04
申请号：JP2002227001
申请日：2002-08-05
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： ITAGAKI HAJIME , TOYODA MANABU , BIZEN YOSHIO , ASAKI KAZUMI
IPC分类号： B32B15/08 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a shield material which is such that a soft magnetic quenched alloy thin strip and a resin film are laminated, which is improved in workability when pasting to an object to be shielded by improving the visibility of markings.
SOLUTION: In the magnetic shield material which is a combination of the soft magnetic quenched alloy thin strip and the resin film, the resin film is opaque.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种屏蔽材料，其使得软磁淬火合金薄带和树脂膜层压，当通过提高标记的可见性将其粘贴到待屏蔽物体时，其可加工性提高。解决方案：在软磁淬火合金薄带和树脂膜的组合的磁屏蔽材料中，树脂膜是不透明的。版权所有（C）2004，JPO

2. 发明专利

JPH04176007A MANUFACTURE OF FLOATING TYPE MAGNETIC HEAD 失效
公开(公告)号：JPH04176007A
公开(公告)日：1992-06-23
申请号：JP30788190
申请日：1990-11-14
申请人： HITACHI METALS LTD
发明人： KONDO KEIICHI , GOTO MAKOTO , TOYODA MANABU
IPC分类号： G11B5/31 , G11B5/105 , G11B5/127 , G11B5/60 , G11B21/21
摘要： PURPOSE:To enable the upgrading of quality and performance with a smaller size by a method wherein a specified margin is given to the rear on the side of a back gap surface with respect to reference height dimensions and a cutting is performed to regulate a tracking width on the side of a front gap core. CONSTITUTION:A large margin 16 of 0.1-0.3mm equivalent to 15-45% of reference dimensions is given to the rear on the side of a back gap surface with respect to a reference height dimension 11b to an apex from the rear on the side of the back gap surface of a magnetic head core 16 and with a height of the magnetic head core raised as a whole, a cutting is performed to regulate a track width on the side of the front gap surface of the magnetic head core. This enables the formation of the magnetic head of high performance and quality lower in height with a smaller size.

3. 发明专利

JPH03228207A FLOATING TYPE MAGNETIC HEAD 失效
公开(公告)号：JPH03228207A
公开(公告)日：1991-10-09
申请号：JP2159990
申请日：1990-01-31
申请人： HITACHI METALS LTD
发明人： TAKAHASHI HIDEJI , GOTO MAKOTO , TOYODA MANABU
IPC分类号： G11B5/23 , G11B5/187
摘要： PURPOSE:To make improvement in the bit shift characteristic of the floating type magnetic head having the track width of a specific value or below by directing the axis of difficult magnetization of magnetic metallic thin films toward a gap depth direction. CONSTITUTION:The magnetic metallic thin films 11 of the floating type magnetic head which uses the magnetic core 10 constituted with a main magnetic circuit of an oxide magnetic material and formed with the magnetic metallic thin films 11 to constitute an auxiliary magnetic circuit on at least the side faces of the magnetic gap part G and has

4. 发明专利

JPS5614043A PRODUCTION OF HARDENED PISTON RING MADE OF STEEL 失效
公开(公告)号：JPS5614043A
公开(公告)日：1981-02-10
申请号：JP8882979
申请日：1979-07-13
申请人： HITACHI METALS LTD
发明人： SHIGEMOTO NOBUMASA , TOYODA MANABU
IPC分类号： B21D53/16 , B21D53/84 , B21F37/00 , B21F37/02 , F16J9/00
摘要： PURPOSE:To easily produce a hardened piston ring made of steel of high hardness under superior dimensional and shape accuracy by heating a wirelike or striplike steel material and forming the same to a piston ring shape, then immediately hardening and tempering, the same. CONSTITUTION:A steel material being a blank material for piston rings is formed to a strip shape by drawing or roll forming and is heated to a temperature higher than the hardening temperature of this steel material. Next, it is put in a ring forming machine and is thereby formed to a piston ring shape. It is mechanically restrained and held in that state and is then quenched by oil, water, etc. whereby it is hardened. Since the material is formed to a piston ring shape and is quenched and hardened in that state without being removed from the device, it is hardened without giving any change in its shape and after it has been subjected to necessary working, it is fixed in jigs and is hardened. These obviate the production of any strain in shape owing to hardening and tempering and enable the hardened piston ring of steel of superior dimensional and shape accuracy to be produced.

5. 发明专利

JPH02273305A MAGNETIC HEAD AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH02273305A
公开(公告)日：1990-11-07
申请号：JP9445889
申请日：1989-04-14
申请人： HITACHI METALS LTD
发明人： GOTO MAKOTO , TOMITANI TADAFUMI , TOYODA MANABU , NITANDA FUMIO , SUWABE SHIGEKAZU
IPC分类号： G11B5/23 , G11B5/127
摘要： PURPOSE:To drastically decrease the influence of the pseudo gap at the boundary between magnetic cores and ferromagnetic metallic thin films by forming the joint surfaces between the ferromagnetic metallic alloy films and the ferrite cores as passive surfaces. CONSTITUTION:The I core 5 and the C core 6 are separately formed by using Mn-Zn ferrite and Cr is sputtered to 50 to 150Angstrom thickness on the joint surface of the I core 5 with a sputtering device. The O and Cr in the ferrite react and Cr2O3 is thereby partly formed. An Fe-Al-Si alloy layer is formed to 1 to 5mum thickness on the Cr layer in a nonoxidative atmosphere. This Cr is diffused into the Fe-Al-Si layer by a heat treatment to annihilate the Cr layer. The Fe-Al-Si layer 9 contg. the Cr is thereby brought into direct contact with the Cr oxide layer 12. This I core 5 is bonded by glass 7 to the C core 6. The glass having the softening point higher than the softening point used for fixing the magnetic head to a slider is used for this glass 7. The influence of the pseudo gap at the boundary between the magnetic cores and the metallic thin films is drastically decreased by the diffusion and annihilation of the Cr thin films.

6. 发明专利

JPH0227514A FLOATING TYPE COMPOSITE MAGNETIC HEAD 失效
公开(公告)号：JPH0227514A
公开(公告)日：1990-01-30
申请号：JP17508388
申请日：1988-07-15
申请人： HITACHI METALS LTD
发明人： NITANDA FUMIO , GOTO MAKOTO , YAMAZAKI MASANOBU , TOMITANI TADASHI , TOYODA MANABU
IPC分类号： C03C29/00 , C03C8/24 , G11B5/60
摘要： PURPOSE:To prevent the occurrence of stain, discoloration or deposition on the surface of a secondary glass opposed to a medium by forming a layer enriched with the component of the secondary glass which is excellent in weather resistance on the surface of the secondary glass opposed to the medium. CONSTITUTION:The surface opposed to the medium of the secondary glass (glass for burying) 4c of a magnetic head assembled by inserting a core 2 into the groove 3 of a slider 1 and performing secondary bonding by means of the secondary glass 4c is irradiated with ions, especially the ions of inactive gas such as Ar or the mixed gas of said inactive gas and reactive gas such as O2. Then, the more elements of lead having high sputtering rate of the components of the glass are driven out from the surface and the layer enriched with the elements having low sputtering rate such as SiO2 is formed on the surface of the secondary glass 4c which is exposed on the surface opposed to the medium. Thus, the stain and the discoloration of the surface of the secondary glass 4c can be prevented from occurring.

7. 发明专利

JPS5823812B2 失效
公开(公告)号：JPS5823812B2
公开(公告)日：1983-05-17
申请号：JP8882979
申请日：1979-07-13
申请人： HITACHI METALS LTD
发明人： SHIGEMOTO NOBUMASA , TOYODA MANABU
IPC分类号： B21D53/16 , B21D53/84 , B21F37/00 , B21F37/02 , F16J9/00

8. 发明专利

JPS5726123A Production of hardened piston ring made of steel 失效
标题翻译：钢的硬化活塞环的生产
公开(公告)号：JPS5726123A
公开(公告)日：1982-02-12
申请号：JP10190480
申请日：1980-07-25
申请人： Hitachi Metals Ltd
发明人： TOYODA MANABU
IPC分类号： B21D3/14 , C21D9/40
CPC分类号： C21D9/40
摘要： PURPOSE:To improve the yield of products by working a striplike annealed steel blank material into a ring shape, heating the same to a hardening temp., and plastically screwing down the shape while quickly cooling the same by means of dies at the time of producing a hardened piston ring made of steel. CONSTITUTION:A striplike steel material made by rolling or drawing is annealed to soften, and is hot- or cold-worked to a piston ring shape. Next, the work 1 is heated to a hardening temp., after which it is placed on a female die 4, and a male die 3 is put thereon. While it is quickly cooled by a middle die 2 at above the temp. at which martensite transformation initiates, it is screwed down in an arrow direction, whereby it is plastically screwed down and straightened to have the roundness and flatness of a ring; at the same time, it is hardened, whereby the piston ring of high hardness, high strength and a correct shape is produced at a high yield.
摘要翻译：目的：通过将带状退火钢坯料加工成环状来提高产品的产量，将其加热至硬化温度，并且在生产时通过模具快速冷却形状，并且塑性地拧紧钢制硬化活塞环。构成：通过轧制或拉伸制成的条纹钢材料进行退火以软化，并对活塞环形状进行热或冷加工。接下来，将工件1加热到硬化温度，然后将其放置在阴模4上，并且将阳模3放置在其上。虽然它被中间模具2快速冷却在高于温度。马氏体相变开始时，沿箭头方向旋转，由此被塑性地拧紧并矫直以具有环的圆度和平坦度; 同时硬化，从而以高产率生产高硬度，高强度和正确形状的活塞环。

9. 发明专利

JPS5721234A Production of hardened steel piston ring 失效
标题翻译：生产硬化钢活塞环
公开(公告)号：JPS5721234A
公开(公告)日：1982-02-03
申请号：JP9648480
申请日：1980-07-15
申请人： Hitachi Metals Ltd
发明人： TOYODA MANABU
IPC分类号： B23P15/06 , F16J9/26
摘要： PURPOSE: To produce a piston of high hardness, high strength and very little strain by forming material steel into a spiral ringform, subsequently applying plastic reformation through cold working by means of a metal mould, and later heat treatment.
CONSTITUTION: Line-like or belt-like steel material, annealed after drawing or rolling, is formed into a ringtform through cold or hot working. Formed ring materials 1 are placed on a lower mould 4, covered by an upper mould 3, and pressed down by a middle mould 2 in the direction of an arrow for reforming. Subsequently, in case of salt heating, the ring materials 1 are suspended by a jig, while in case of heating by an electric furnace and the like, the materials 1 are piled up on a tray 5 and subjected to heat treatment such as hardening, tempering and the like.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过将材料钢成形为螺旋形环状产生高硬度，高强度和极小应变的活塞，随后通过金属模具进行冷加工，再进行热处理，进行塑性变形。构成：在拉拔或轧制后退火的线状或带状钢材料通过冷或热加工形成环形。成形环材料1放置在下模具4上，被上模3覆盖，并且通过中间模具2沿箭头方向按压以进行重整。随后，在盐加热的情况下，通过夹具悬挂环材料1，而在通过电炉等加热的情况下，将材料1堆叠在托盘5上并进行硬化等热处理，回火等。

10. 发明专利

JPS5426944A BONDING CARBIDE TIP AND FIXTURE THEREFOR 失效
公开(公告)号：JPS5426944A
公开(公告)日：1979-02-28
申请号：JP9254177
申请日：1977-08-03
申请人： HITACHI METALS LTD
发明人： SHIGEMOTO NOBUMASA , TOYODA MANABU
IPC分类号： B26F1/02 , B21D28/14 , B21D28/32 , B21D28/34 , B21D37/01 , B21J13/02 , B23K20/00 , B26F1/14

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