Tdk Corporation

The Furukawa Electric Co., Ltd.

Hidekazu Kojima

Hiromichi Umehara

Toshio Shibata

Hiraku Hirabayashi

Hideki Watanabe

Kenzo Makino

Satoshi Miura

Takayasu Kanaya

Tomohiro Akiyama

Hisayoshi Watanabe

Naomichi Degawa

Minoru Ota

Masachika Hashino

Tetsuya Hiraki

Kohei Honma

Hideyuki Ukita

Seiryo Mishima

A magnetic sensor includes a substrate including a top surface, an insulating layer including an inclined surface, an MR element disposed on the inclined surface, a first insulating portion of an insulating material disposed on a part of the MR element, and a second insulating portion of an insulating material disposed on another part of the MR element at a position forward of the first insulating portion in a direction along the inclined surface, the direction being a direction away from the top surface of the substrate.

Magnetic sensor including magnetic detection element disposed on inclined surface

A magnetic sensor includes a substrate including a top surface; an insulating layer disposed on the substrate, the insulating layer including first and second inclined surfaces each inclined with respect to the top surface of the substrate; and an MR element. The MR element is disposed on the first inclined surface or the second inclined surface. The MR element includes a first side surface including a first portion and a second portion, the first portion and the second portion having different angles with respect to the first inclined surface or the second inclined surface.

A magnetic sensor includes a substrate including a top surface; an insulating layer disposed on the substrate, the insulating layer including first and second inclined surfaces each inclined with respect to the top surface of the substrate; and an MR element structure. An MR element is disposed on the first inclined surface or the second inclined surface. The MR element includes a bottom surface facing the first inclined surface or the second inclined surface, a top surface, and a first surface connecting the bottom surface and the top surface and including two steps.

Magnetic sensor including magnetic detection element including bottom surface facing inclined surface

Magnetic sensor

A magneto-resistive effect element (MR element) has an upper shield that is magnetized in a cross track direction, a lower shield that is positioned at an interval relative to the upper shield in a down track direction, and a multilayer film that is positioned between the upper shield and the lower shield and that faces an air bearing surface (ABS). The multilayer film has a free layer where its magnetization direction fluctuates relative to an external magnetic field, a pinned layer where its magnetization direction is pinned against the external magnetic field, a nonmagnetic spacer layer that is positioned between the free layer and the pinned layer, and an insulating layer that is positioned at a back side of the free layer viewed from the ABS. The MR element further has a pair of side shields that are positioned at both sides of the free layer and the insulating layer in a cross track direction. The side shields contact the upper shield on the sides of the free layer and the insulating layer in the cross track direction.

Magneto-resistive effect element having side shield integrated with upper shield

A TMR element includes a stack having a sidewall, and an insulating layer in contact with the sidewall. The stack includes a first ferromagnetic layer, a second ferromagnetic layer, and a tunnel barrier layer located between the first and second ferromagnetic layers. The insulating layer includes an island-like structure section in contact with only a part of the sidewall, and a coating section covering the island-like structure section and the sidewall. The tunnel barrier layer contains a first oxide. The island-like structure section contains a second oxide. Each of the first and second oxides is a metal oxide or semiconductor oxide. G2&#x2212;G1 is 435 kJ/mol or smaller, where G1 and G2 are standard Gibbs energies of formation at 280&#xb0; C. of the first oxide and the second oxide, respectively.

Magnetoresistance element including a stack having a sidewall, and an insulating layer in contact with the sidewall

A mold is provided in which a molding portion, formed between joint surfaces of upper and lower molds superimposed one upon the other, is filled with UV curable resin after arranging a coating formation portion of an optical fiber in the molding portion, the coating formation portion is coated with the UV curable resin when the resin is cured by irradiating light thereto from outside, and a shading plate is arranged in the periphery of the molding portion. In a case equipped with the mold, there is provided a mirror or a lens for reflecting UV light to UV curable resin.

Molding die for covering optical fiber and optical fiber cover forming device

In an optical fiber observing image processing apparatus, at least two different capturing modes is provided in an image capturing means for capturing image data from two or more television cameras, so that, by automatically switching capturing modes in synchronous with or independently from progress of the image processing, high speed processing can be achieved regardless of limitation of a data capturing speed. A scanning converting means is provided in a rear stage of the image capturing means, and a plurality of different transfer modes for transferring data between the scanning converting means and the image capturing means are prepared. Further, a delay means may be provided in a front stage of the scanning converting means.

Optical fiber fusion-splicer

An optical fiber coating forming device forms a coating of an ultraviolet light hardening type in an optical fiber by precisely controlling an ultraviolet light output of a light source. The optical fiber coating forming device has a light source ( ) for irradiating ultraviolet light to resin for coating formation molded to a coating removing portion ( ) of an optical fiber core wire ( ), a light receiver ( ) for detecting intensity of the ultraviolet light by receiving the ultraviolet light irradiated to the resin for coating formation from the light source ( ), and an environmental sensor ( ) for detecting environmental information. The environmental sensor ( ) includes at least a temperature sensor ( ) and selectively includes a humidity sensor ( ) and an atmospheric pressure sensor ( ). An optical output controller ( ) feedback-controls the optical output of the light source ( ) on the basis of the environmental information detected by the environmental sensor ( ), the ultraviolet light intensity detected by the light receiver ( ), and control data for controlling the optical output of the light source ( ) based on the ultraviolet light intensity and the above environmental information.

Coating forming device of optical fiber

An optical fiber coating device that recoats a coating removed portion of an optical fiber with light-curing resin has an observation window through which a mold inside of a shielding lid that covers the mold can be confirmed in a state where the shielding lid remains closed. There is provided an open/close lid that can open/close the observation window. An optical shielding guard plate is provided around the observation window. A filter that cuts off the external light having a specific wavelength is provided on the observation window. There is provided a photo sensor that can detect the amount of light of a light source that irradiates a light onto the light-curing resin, and the amount of light can be automatically adjusted on the basis of the detected result of the photo sensor. An alarm that urges to exchange the light source is raised on the basis of the detected result of the photo sensor. There is provided a TV camera that can capture the interior of the mold and other portions to be observed. There is provided a mirror that projects a portion that cannot be directly observed among the portions to be observed.

Growing community of inventors

Tokyo, Japan

Hidekazu Kojima