公开(公告)号：JPH0668444A

公开(公告)日：1994-03-11

申请号：JP21793592

申请日：1992-08-17

Applicant: SONY CORP

Inventor： MORITA OSAMI

IPC: G11B5/596 ,  G11B5/55 ,  G11B21/10

Abstract: PURPOSE:To improve productivity by easily performing write work without performing the exchange work of a magnetic head when a positioning signal for a magnetic disk on the surface of which irregularity is formed is written. CONSTITUTION:The magnetic head 2 is moved in the radius direction of the magnetic disk 1 by rotating the magnetic disk 1 and as impressing a first DC current to the magnetic head 2, and all the magnetic layers 12 of the recessed part 13 and projecting part 14 of the magnetic disk 1 are magnetized in the same direction. After that, the magnetic head 2 is moved in the radius direction of the magnetic disk 1 as impressing a second DC current with polarity opposite to that of the first DC current to the magnetic head 2, and only the magnetic layer 12 of the projecting part 13 of the magnetic disk 1 is magnetized in an opposite direction.

公开(公告)号：JPH04221410A

公开(公告)日：1992-08-11

申请号：JP41352990

申请日：1990-12-22

Applicant: SONY CORP

Inventor： MORITA OSAMI ,  TAKINO HIROSHI

IPC: G11B5/31

Abstract: PURPOSE:To suppress side reading and side writing and to improve output power and resolution in reproduction when high density recording is performed particularly through a vertical magnetic recording system. CONSTITUTION:A magnetic gap 3 is formed between the tip parts 1A and 2A of a first high permeability core 1 having a high saturated flux density and a second high permeability core 2 having a saturated flux density lower than the first one. A single-pole magnetic recording head is composed of the first core 1 and a reproduction ring type magnetic head is composed of the first and second cores 1.

公开(公告)号：JPH0434718A

公开(公告)日：1992-02-05

申请号：JP14068490

申请日：1990-05-30

Applicant: SONY CORP

Inventor： TAKINO HIROSHI ,  MORITA OSAMI

IPC: G11B5/82 ,  G11B5/64 ,  G11B5/65 ,  G11B5/66

Abstract: PURPOSE:To increase the respective quantities of servo information and data information by adopting the structure to laminate patterned magnetic layers for servo on at least one surface of a substrate and magnetic layers for data thereon. CONSTITUTION:The constitution to laminate the magnetic layers 12 for servo which have a high coercive force Hc and are patterned and the magnetic layers 13 for data which have the coercive force Hc lower than the coercive force of the above-mentioned magnetic layers thereon on at least one surface of the substrate 11 is adopted. The servo information and the data information can be recorded at the respectively large recording quantities without hindering the respective information quantities thereof with each other by such laminated constitution. The servo information in the magnetic layers 12 for servo are recorded as the shape patterns of the magnetic layers 12 and further the magnetic layers 12 for servo are constituted by the high-coercive force magnetic layers and, therefore, the servo information is surely held regardless of recording, reproducing, rewriting, etc., of the magnetic layers 13 for data constituted of the high-coercive force magnetic layers. The recording quantities of both of the servo information and the data information are sufficiently increased in this way.

公开(公告)号：JPS63134902A

公开(公告)日：1988-06-07

申请号：JP28110086

申请日：1986-11-26

Applicant: SONY CORP

Inventor： SAITO ICHIRO ,  SHIMAMURA TOSHIKI ,  KAWAZOE KAZUSHIGE ,  MORITA OSAMI

IPC: G01B11/14 ,  G11B21/21

Abstract: PURPOSE:To measure a minute gap with high accuracy by notching the rear end side of a recording medium opposed-contact surface of a pseudo head, to an inclined surface shape and using it as a reflection surface, and changing a light beam from a light source, to the head direction of the pseudo head by this reflection surface. CONSTITUTION:A light beam generated from a light source 1 passes through a filter system 2 and reflected by a half mirror 4 in a microscope 3, and radiated to a pseudo head 6 provided on a rotary drum 5. The tip side of the pseudo head 6, namely, a recording medium opposed-contact surface 11 is polished to a cylindrical shape, and the rear end side is notched to an inclined surface shape, and a slanting surface 12 of a specular state is formed. The light beam of a two-wavelength component, which has been inputted to the pseudo head 6 is reflected by the reflection surface 12, and reflected by the recording medium opposed-contact surface 11 and the surface 7a of a recording medium 7. These reflected light beams become interference light beams and form an image by a video camera 8 through the reflection surface 12 and the half mirror 4 again. A luminance signal from the camera 8 is inputted to a waveform storage device 9 and A/D-converted, and thereafter, a spacing quantity S is calculated by a personal computer 10.

公开(公告)号：JP2004213843A

公开(公告)日：2004-07-29

申请号：JP2003002664

申请日：2003-01-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MORITA OSAMI ,  TANAKA SATOSHI ,  KURODA KIYOTAKA

IPC: G11B20/10 ,  G11B33/12

CPC classification number: G11B33/121

Abstract: PROBLEM TO BE SOLVED: To provide a portable and externally mounted hard disk system. SOLUTION: The hard disk system is provided with a hard disk unit 1 and an conversion unit 2 which is made freely attachable and detachable to and from the unit 1. The unit 1 is provided with an IDE interface terminal 10. The unit 2 is provided with the terminal 10 and a USB terminal 44. Further, the unit 2 is internally provided with a storage battery. The unit 2 supplies combined power of USB power supply line power and storage battery power to the unit 1. COPYRIGHT: (C)2004,JPO&NCIPI

Abstract translation: 要解决的问题：提供便携式和外部安装的硬盘系统。 解决方案：硬盘系统设有硬盘单元1和转换单元2，该单元1和单元1可自由地安装和拆卸。单元1设置有IDE接口终端10.单元 2设置有端子10和USB端子44.此外，单元2内部设置有蓄电池。 单元2向单元1提供USB电源线电源和蓄电池电源的组合电源。版权所有（C）2004，JPO＆NCIPI

公开(公告)号：JP2004063029A

公开(公告)日：2004-02-26

申请号：JP2002222073

申请日：2002-07-30

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MORITA OSAMI

IPC: G11B33/12 ,  G11B25/04 ,  G11B33/14

Abstract: PROBLEM TO BE SOLVED: To provide an information storage device in which impact resistance of a storage device of especially hard disk drive or the like is improved, and environmental resistance is improved.
SOLUTION: This device is an information storage device in which a HDD 14 is stored in a sealed case 30, and a buffer member 15 protecting the HDD 14 from impact is provided in a sealed case 30, the device is provided with a air bag 17 having an opening part 17a, the HDD 14 has at least one hole 21a for ventilation, while the other holes except the hole 21a are sealed, the opening part 17a is attached to each of all holes 21a for ventilation.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004055013A

公开(公告)日：2004-02-19

申请号：JP2002209871

申请日：2002-07-18

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MORITA OSAMI

IPC: G11B33/14 ,  G11B25/04 ,  G11B33/12

Abstract: PROBLEM TO BE SOLVED: To provide a data storage apparatus capable of increasing its shock resistance and environmental resistance, and a casing used therefor.
SOLUTION: The data storage apparatus 10 is provided with a storage device 14 incorporating a storage medium to store data, and a casing for surrounding the storage device 14 to seal it. Thus, the apparatus is not adversely affected by the adverse external environment of the casing. For example, even when the external air pressure, temperature or humidity of the casing is changed, or a corrosive gas is generated outside the casing, no adverse influence is given to the storage device 14 in the sealed casing.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2001184629A

公开(公告)日：2001-07-06

申请号：JP36326499

申请日：1999-12-21

Applicant: SONY CORP

Inventor： MORITA OSAMI

IPC: G11B5/82 ,  G11B5/596 ,  G11B21/10

Abstract: PROBLEM TO BE SOLVED: To realize stable recording/reproducing by reducing the degradation of magnetic properties with time. SOLUTION: A striped texture 5 is formed in the primary surface of a substrate 2, and a magnetic layer 3 is formed on the substrate 2. In a servo mark portion 5a for detecting a tracking signal, a striped texture 5 is formed in a direction parallel to the traveling direction of a magnetic head and, in a data track portion 5b for recording/reproducing an information signal, a striped texture 5 is formed in a direction vertical to the traveling direction of the magnetic head. Then, in the servo mark portion 5a and the data track portion 5b, initialization operations are carried out by magnetization in a direction parallel to the traveling direction of the magnetic head, and in directions different from each other.

公开(公告)号：JP2001084580A

公开(公告)日：2001-03-30

申请号：JP25809599

申请日：1999-09-10

Applicant: SONY CORP

Inventor： MORITA OSAMI ,  FUKUYAMA MUNEKATSU

IPC: G11B5/82 ,  G11B5/73 ,  G11B5/84 ,  G11B21/10

Abstract: PROBLEM TO BE SOLVED: To form a stripe-shaped texture having extremely shallow depth by forming a resist thin film having a prescribed uneven pattern on a master dish of a stamper, then forming a plated layer by laminating a first plated layer formed by an electroless plating method and a second plated layer formed by an electrolytic plating method and peeling off the plated layer from the master disk to produce the stamper having the inverted uneven pattern. SOLUTION: A photoresist layer 11 having the prescribed uneven pattern is formed on an almost disc-shaped glass substrate 10 having a hole of a prescribed diameter in the center. The first plated layer 13 is formed into a thin film shape on the glass substrate 10 having the formed layer 11 by the electroless plating method by using NiP or the like. The second plated layer 14 is formed on the layer 13 by changing the electroless plating method to the electrolytic plating method when the layer 13 reached to the prescribed thickness to form the plated layer 15. The layer 15 is peeled off from the substrate 10. The front surface of the peeled layer 15 is washed and the rear surface is polished to prepare the stamper.

公开(公告)号：JP2001043653A

公开(公告)日：2001-02-16

申请号：JP21751599

申请日：1999-07-30

Applicant: SONY CORP

Inventor： MORITA OSAMI

IPC: G11B23/033

Abstract: PROBLEM TO BE SOLVED: To obtain the sure protection of a disk by maintaining rigidity while reducing the thickness of a cartridge body for housing the disk. SOLUTION: This disk cartridge has the disk 5 formed in thickness to =2.4 mm and is formed by bending this cartridge body 4 and thixotropic molding of a nonferrous metallic material having a modulus of elasticity of >=2.4 GPamm2. A magnesium alloy or aluminum alloy is used as the nonferrous metallic material.