Hitachi, Ltd.

Hitachi Global Storage Technologies Netherlands B.v.

Canon Kabushiki Kaisha

Hgst Netherlands, B.v.

Hitachi Global Storage Technologies Japan, Ltd.

Hitachi Storage Technologies Japan, Ltd.

Koji Sakamoto

Yoshibumi Matsuda

Yotsuo Yahisa

Yuzuru Hosoe

Tetsuya Kanbe

Akira Kato

Koichi Nishioka

Hiroyuki Suzuki

Akira Ishikawa

Norihiro Okawa

Koji Okazaki

Jo Inagaki

Takashi Hotta

Kiwamu Tanahashi

Tatsuya Hinoue

Hirokazu Suzuki

Kotaro Shimamura

Yo Sato

Akira Bando

Katsumi Hoshino

Hiroshi Tani

Shigeta Ueda

Kouichi Nishioka

Yoshitaka Takahashi

Hideki Mashima

Norihiro Ookawa

Masashi Hattori

Yoko Ogawa

Takao Yonekawa

Susumu Funamoto

Kouji Okazaki

Tsutomu Yasuda

Yuuichiro Morita

Hiroyasu Satou

Atsushi Katou

Tatsumi Hirano

Katsuya Mitsuoka

The present invention provides a system in which, via a web page provided using a web browser by a management server, a management screen provided by a network device can be accessed while the management server does not need to have a private IP address of the network device.

System and method using the same, information processing apparatus and method using the same, and storage medium

A management system that manages a plurality of network devices includes managing a delivery flag to manage delivery of each consumable for each of the plurality of network devices, receiving a first notification, from a network device, notifying that a remaining amount of a consumable has become small, where the notification includes remaining amount information about each consumable included in the network device, managing the remaining amount information for each consumable in the network device based on a content of the first notification, and determining the consumable to be delivered based on the first notification and the delivery flag.

Management system and method

A management system collects operation information of a network device and comprises a management unit configured to manage a condition and a period for distributing a setting value to the network device; a reception unit configured to receive the operation information of the network device; an acquisition unit configured to acquire device information of the network device; a determination unit configured to determine whether or not the operation information meets the condition; a decision unit configured to decide a setting value to be distributed to the network device; and a response unit configured to return the determined setting value to the network device when the acquisition of the setting value is requested from the network device via a network within the period. The response unit does not return the decided setting value to the network device when the acquisition of the setting value is requested outside of the period.

Management system and management method

In one embodiment, a magnetic head includes a sensor stack of thin films including a free layer; a hard bias structure comprising a first foundation layer, a second foundation layer formed on the first foundation layer and a hard bias layer formed above the second foundation layer, wherein portions of the first and second foundation layers positioned along a side wall of the sensor stack have a discrete island structure. Additional embodiments are also disclosed.

Easy axis hard bias structure

An apparatus includes a storage device configured to store a map image of one or more floors on which a network device is installed, positional information about an installation location of the network device on the map image, and configuration information about the network device, a setting unit configured to set a region on the map image and a rule that the network device complies with in the region, a moving unit configured to designate a movement destination for moving the network device by changing the positional information, a determination unit configured, if the positional information has been changed, to determine a content of a change of a configuration required to be executed to the network device when the network device is moved, and a notification unit configured to notify to an operator the content of the change of the configuration.

Management apparatus, management apparatus control method, and storage medium

A method for manufacturing a magnetic sensor that decreases area resistance and decreases MR ratio of the sensor by eliminating any oxide formation in the capping layer of the sensor. The method includes forming a sensor stack having a multi-layer capping structure formed there-over. The multi-layer capping structure can include first, second, third and fourth layers. The second layer is constructed of a material that is not easily oxidized and which is different from the first layer. The sensor can be formed using a mask that includes a carbon hard mask. After the sensor stack has been formed by ion milling, the hard mask can be removed by reactive ion etching. Then, a cleaning process is performed to remove the second, third and fourth layers of the capping layer structure using an end point detection method such as secondary ion mass spectrometry to detect the presence of the second layer.

Method of manufacturing a magnetic read sensor having a low resistance cap structure

According to one embodiment, a method for producing a Tunneling Magnetoresistance (TMR) read head includes forming a fixed layer, forming an insulating barrier layer above the fixed layer, forming a free layer above the insulating barrier layer, and annealing the free layer, the fixed layer, and the insulating barrier layer. The fixed layer includes a first ferromagnetic layer having a CoFe (0&#x2266;x&#x2266;15) interface layer and a Co-based amorphous metallic layer between the CoFe interface layer and the insulating barrier layer, an antiparallel coupling layer below the first ferromagnetic layer, and a second ferromagnetic layer below the antiparallel coupling layer. In another embodiment, a TMR read head includes the layers described above, and may be included in a magnetic data storage system.

Tunneling magnetoresistance read head having a cofe interface layer and methods for producing the same

A magnetic read head having a novel magnetic bias structure that provides improved magnetic biasing for improved free layer robustness and reduced Barkhausen noise. The bias structure includes hard magnetic layer formed over first and second under-layers. At least a portion of the first under-layer is formed as discrete islands of material, and the second under-layer is formed over the first under-layer. The first under-layer has a thickness of 0.25 to 0.75 nm. The novel seed layer structure causes hard magnetic layer to have a magnetic anisotropy that is substantially parallel with the free layer of the sensor stack even in regions adjacent to the sensor stack.

Magnetic bias structure for magnetoresistive sensor

In one embodiment, a magnetic head includes a magnetoresistive free layer, wherein a width of the free layer nearest an air bearing surface (ABS) is less than a width of the free layer at a point away from the ABS in a track width direction, with the magnetic head being configured to pass a sense current in a direction perpendicular to a plane of deposition of the free layer. In another embodiment, a method includes forming a magnetoresistive film above a shield, forming a masking layer above the magnetoresistive film, patterning the masking layer such that it exposes portions of the magnetoresistive film, wherein the masking layer defines an area which is narrow near an area that forms an ABS side of a free layer and wider at an area away from the ABS, and removing the exposed portions of the magnetoresistive film to form the free layer.

Magnetic head with wide sensor back edge, low resistance, and high signal to-noise ratio and methods of production thereof

According to one embodiment, a TMR effect element includes a ground layer, an antiferromagnetic layer above the ground layer, a first ferromagnetic layer above the antiferromagnetic layer and exchange-coupled to the antiferromagnetic layer, an anti-parallel coupling layer above the first ferromagnetic layer, a second ferromagnetic layer having a magnetic moment coupled anti-parallel to the magnetic moment of the first ferromagnetic layer via the anti-parallel coupling layer, an insulation barrier layer above the second ferromagnetic layer, and a third ferromagnetic layer above the insulation barrier layer. At least a portion of the second ferromagnetic layer and at least a portion of the third ferromagnetic layer on an insulation barrier layer side are comprised of a crystal, and the insulation barrier layer comprises MgO and an oxide material having an independent cubic crystal structure and complete solid solubility with MgO. Other elements, heads, and formation methods are described according to various embodiments.

Tunneling junction magnetoresistive effect element and manufacturing method thereof

One general embodiment of the present invention is a magnetic read head including a magnetoresistive sensor where sense current flows in a stacking direction of the magnetoresistive sensor, i.e., perpendicular to the plane of the layers of the head. The magnetoresistive sensor comprises a free layer having a magnetization direction that is affected by external magnetic fields and includes a Heusler alloy layer and a Co-based amorphous metal layer, a fixed layer which is stacked with the free layer and has a fixed magnetization direction, and a non-magnetic intermediate layer between the free layer and the fixed layer.

Current perpendicular to plane (CPP) magnetic read head

Embodiments of the present invention provide a magnetic recording medium for use in high-reliable magnetic recording apparatus capable of reading/writing information with high density. In one embodiment, a magnetic recording apparatus includes a magnetic recording medium, a driver for driving the medium in a recording direction, a compound type magnetic head having an electromagnetic induction type magnetic head for recording and a spin-valve type magnetic head for reading in combination, a mechanism to move the head relative to the medium, and a read/write signal processing module for the head. The magnetic recording medium has a magnetic layer formed by way of a first underlayer, a second underlayer and a third underlayer on a substrate. The first underlayer comprises an alloy of an amorphous structure, the second underlayer comprises a W element or a W-containing alloy layer, the third underlayer comprises one or more Cr-based alloy layers of a body-centered cubic structure, and the magnetic layer comprises one or more Co-based alloy layers of a hexagonal close-packed structure.

Magnetic recording medium

The longitudinal magnetic recording medium includes a non-magnetic substrate, a first underlayer having at least one of an amorphous structure and a fine crystal structure formed on the non-magnetic substrate, a second underlayer having a body-centered cubic structure formed on the first underlayer, a third underlayer having a hexagonal closed packed structure formed on the second underlayer, and a magnetic layer having the hexagonal closed packed structure formed on the third underlayer, wherein the third underlayer is composed of an alloy containing Co and Ru.

Magnetic recording medium and magnetic recording apparatus

A magnetic recording medium includes a first underlying film of a NiTa alloy having a nonmagnetic amorphous structure and formed on a nonmagnetic substrate, and a second underlying film made of an alloy containing Cr and Ti, further a first magnetic film of a CoCrPt alloy, a nonmagnetic intermediate film of Ru and a second magnetic film of a CoCrPtB alloy that are serially formed over the first underlying film, wherein oxygen locally exists in an interface between the first underlying film and the second underlying film.

Magnetic recording medium and manufacturing method thereof

A magnetic recording medium includes an underlayer of a nonmagnetic alloy containing chromium and titanium, a magnetic layer of a Co&mdash;Cr&mdash;Pt&mdash;Ta or Co&mdash;Cr&mdash;Pt&mdash;B alloy, and an intermediate layer of a Co&mdash;Cr&mdash;Pt alloy and being disposed between the underlayer and the magnetic layer, thereby carrying out high-density information recording and reproducing operation.

Growing community of inventors

Odawara, Japan

Koji Sakamoto