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Hidekazu Kobayashi

Hidekazu Kobayashi, Niigata-Ken JP

Patent application numberDescriptionPublished
20080218913TUNNELING MAGNETORESISTIVE ELEMENT WHICH INCLUDES Mg-O BARRIER LAYER AND IN WHICH NONMAGNETIC METAL SUBLAYER IS DISPOSED IN ONE OF MAGNETIC LAYERS - In a tunneling magnetoresistive element, an insulating barrier layer is made of Mg—O, and a first pinned magnetic layer has a laminated structure in which a nonmagnetic metal sublayer made of Ta is interposed between a lower ferromagnetic sublayer and an upper ferromagnetic sublayer. The nonmagnetic metal sublayer has an average thickness of about 1 Å or more and about 5 Å or less.09-11-2008
20080225443TUNNELING MAGNETIC SENSING ELEMENT AND METHOD FOR PRODUCING SAME - A free magnetic layer has a laminated structure in which a first magnetic sublayer composed of Co—Fe or Fe and a second magnetic sublayer composed of Co—Fe—B or Fe—B are formed, in that order, on an insulating barrier layer composed of Mg—O. This effectively improves the rate of change in resistance (ΔR/R) compared with the related art.09-18-2008
20080261082TUNNELING MAGNETORESISTIVE ELEMENT INCLUDING MULTILAYER FREE MAGNETIC LAYER HAVING INSERTED NONMAGNETIC METAL SUBLAYER - A tunnel magnetoresistive element includes a laminate including a pinned magnetic layer, an insulating barrier layer, and a free magnetic layer. The insulating barrier layer is composed of Ti—Mg—O or Ti—O. The free magnetic layer includes an enhancement sublayer, a first soft magnetic sublayer, a nonmagnetic metal sublayer, and a second soft magnetic sublayer. For example, the enhancement sublayer is composed of Co—Fe, the first soft magnetic sublayer and the second soft magnetic sublayer are composed of Ni—Fe, and the nonmagnetic metal sublayer is composed of Ta. The total thickness of the average thickness of the enhancement sublayer and the average thickness of the first soft magnetic sublayer is in the range of 25 to 80 angstroms. Accordingly, the tunneling magnetoresistive element can consistently have a higher rate of resistance change than before.10-23-2008
20100055452TUNNELING MAGNETIC SENSING ELEMENT INCLUDING MGO FILM AS INSULATING BARRIER LAYER - A tunneling magnetic sensing element includes a laminate in which an underlayer, a seed layer, an antiferromagnetic layer, a pinned magnetic layer, an insulating barrier layer, and a free magnetic layer are laminated in order from below. The insulating barrier layer is made of Mg—O. The underlayer is made of Ti, and the seed layer is made of one selected from a group consisting of Ni—Fe—Cr and Ru.03-04-2010
20100270865MAGNETIC COUPLING TYPE ISOLATOR - A magnetic coupling type isolator includes: a magnetic field generator for generating an external magnetic field by an input signal; a magnetoresistive element for detecting the external magnetic field and converting the detected magnetic field into an electric signal, the magnetoresistive element being electrically insulated from the magnetic field generator and positioned in a location capable of being magnetically coupled so as to be overlapped with the magnetic field generator as seen in a top plan view; and first and second shield films overlapped with the magnetic field generator and the magnetoresistive element as seen in a top plan view, wherein a distance between the magnetoresistive element and the second shield film is set to 8 to 100 μm.10-28-2010
20100270866MAGNETIC COUPLING TYPE ISOLATOR - A magnetic coupling type isolator includes: a magnetic field generator for generating an external magnetic field by an input signal; a magnetoresistive element for detecting the external magnetic field and converting the detected magnetic field into an electric signal, the magnetoresistive element being electrically insulated from the magnetic field generator and positioned in a location capable of being magnetically coupled so as to be overlapped with the magnetic field generator as seen in a top plan view; first and second shield films overlapped with the magnetic field generator and the magnetoresistive element as seen in a top plan view; and a third shield film disposed to surround the magnetoresistive element.10-28-2010
20110080165MAGNETIC BALANCE TYPE CURRENT SENSOR - A magnetic balance type current sensor measures a measured current which flows in a feedback coil when electrical conduction is provided by a voltage difference according to an induction magnetic field from the measured current and an equilibrium state is reached in which the induction magnetic field and a cancel magnetic field cancel each other. Sensor elements in a pair are arranged at positions with magnetic field from the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of one sensor element is aligned in a forward direction with respect to the magnetic field formed by the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of the other sensor element is aligned in a reverse direction with respect to the magnetic field formed by the measured current.04-07-2011
20110156798ALPS GREEN DEVICES CO., LTD. - Magnetoresistive effect elements R06-30-2011

Patent applications by Hidekazu Kobayashi, Niigata-Ken JP

Hidekazu Kobayashi, Tokyo JP

Patent application numberDescriptionPublished
20080278863TUNNELING MAGNETIC SENSING ELEMENT AND METHOD FOR MANUFACTURING THE SAME - A tunneling magnetic sensing element includes: a pinned magnetic layer whose direction of magnetization is pinned in one direction; an insulating barrier layer; and a free magnetic layer whose direction of magnetization changes in response to an external magnetic field. The pinned magnetic layer, the insulating barrier layer and the free magnetic layer are deposited in the named order. A first protective layer composed of a platinum-group element is disposed on the free magnetic layer, and a second protective layer composed of Ti is disposed on the first protective layer.11-13-2008
20080285180MAGNETIC SENSING ELEMENT AND METHOD FOR MANUFACTURING THE SAME - An underlying layer is composed of Co—Fe—B that is an amorphous magnetic material. Thus, the upper surface of the underlying layer can be taken as a lower shield layer-side reference position for obtaining a gap length (GL) between upper and lower shields, resulting in a narrower gap than before. In addition, since the underlying layer has an amorphous structure, the underlying layer does not adversely affect the crystalline orientation of individual layers to be formed thereon, and the surface of the underlying layer has good planarizability. Accordingly, PW50 (half-amplitude pulse width) and SN ratio can be improved more than before without causing a decrease in rate of change in resistance (Δ R/R) or the like, thereby achieving a structure suitable for increasing recording density.11-20-2008
20090115551Noise filter - The invention can provide a miniaturized noise filter. The noise filter for reducing noise comprises a coil with a conductive wire (05-07-2009
20100007566Vehicle Roof Mount Antenna - The vehicle roof mount antenna to be detachably mounted on a vehicle roof is mainly constituted by an antenna cover 01-14-2010
20100055501TUNNELING MAGNETIC SENSING ELEMENT - A tunneling magnetic sensing element includes a laminate in which a pinned magnetic layer having a magnetization direction pinned, an insulating barrier layer, and a free magnetic layer having a magnetization direction variable with an external magnetic field are laminated in order from below. The insulating barrier layer is made of Mg—O. The free magnetic layer has a soft magnetic layer and an enhanced layer disposed between the soft magnetic layer and the insulating barrier layer to have a spin polarization ratio higher than the soft magnetic layer. An insertion magnetic layer made of one selected from Co—Fe—B, Co—B, Fe—B, and Co—Fe is inserted into the soft magnetic layer in a direction parallel to the interface of each layer constituting the laminate, and the soft magnetic layer is divided into multiple layers in a thickness direction through the insertion magnetic layer.03-04-2010

Patent applications by Hidekazu Kobayashi, Tokyo JP

Hidekazu Kobayashi, Toyoshina-Machi JP

Patent application numberDescriptionPublished
20090230858ORGANIC EL DEVICE AND ELECTRONIC APPARATUS - An organic EL device includes light-reflective electrodes; light-transmissive electrodes; organic EL layers that are respectively provided between the light-reflective electrodes and the light-transmissive electrodes to emit a plurality of color light components, the organic EL layer emitting a different color light component in each pixel; and transflective layers that are selectively provide in predetermined color pixels to reflect or transmit light emitted from the organic EL layers, respectively, each transflective layer being opposite to the light-reflective electrode with the organic EL layer interposed therebetween.09-17-2009
20090267503LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS - A light-emitting device includes a transparent substrate, a light-emitting layer which is provided on one surface of the substrate and which emits light in response to an electrical signal, a conductive portion which transmits the electrical signal to the light-emitting layer, such that light from the light-emitting layer is emitted after being transmitted through the substrate, and a light transflective layer which is provided between the conductive portion and the substrate at a predetermined distance from the conductive portion to reflect some of incident light through the substrate and to transmit the remainder.10-29-2009

Patent applications by Hidekazu Kobayashi, Toyoshina-Machi JP

Hidekazu Kobayashi, Hara-Mura JP

Patent application numberDescriptionPublished
20080258617Organic electroluminescence device and manufacturing method therefor - An organic EL device in accordance with the invention has a structure in which a first electrode, a light-emitting layer, and a second electrode are formed on a substrate in this order, and light from the light-emitting layer is emitted to an exterior of the device via the second electrode.10-23-2008
20080274660Electroluminescent display device, method for manufacturing the same, and electronic equipment - A transparent cathode electrode technology for an electroluminescent display device having a top emission structure, provides a top emission type electroluminescent display device and a method to manufacture the same. Oxidation of a substrate film can be reduced or prevented during the film formation of a metal oxide. Electronic equipment including this display device is also provided. A first electrode, a function layer including a luminescent layer, and a transparent second electrode made of a metal oxide are laminated on the substrate in that order from the lower surface. At this time, the oxygen concentration in the second electrode is made to vary in the film thickness direction, and the oxygen concentration in the vicinity of the interface between the second electrode and the function layer is made lower than the average oxygen concentration in the second electrode.11-06-2008
20080315761Light-emitting device having openings in electrode - The invention provides a light-emitting device, a manufacturing method thereof, and an electronic apparatus which can improve the emission efficiency of light, obtain uniform brightness within a display surface in high reliability, in particular, and which can suppress lowering of the emission efficiency of light due to various wiring line structures, even though a large screen is performed. In a light-emitting device having a light-emitting element in which a first electrode on a base substrate, a functional layer having a light-emitting layer, and a second electrode are sequentially deposited, the first electrode and the second electrode are reflective, and the second electrode has an opening through which light from the light-emitting layer passes.12-25-2008
20110148944DISPLAY DEVICE - A display device includes a light emitting functional layer disposed between a first and second substrates; a first pixel which emits light to the second substrate and has a first pixel electrode disposed between the light emitting functional layer and the first substrate, a second electrode disposed between the light emitting functional layer and the second substrate, and a first reflecting layer disposed between the first pixel electrode and the first substrate; a second pixel which emits light to the first substrate side and has a second pixel electrode disposed between the light emitting functional layer and the first substrate, a second electrode disposed between the light emitting functional layer and the second substrate, and a second reflecting layer disposed between the second electrode and the second substrate; and a driving element which drives the first and second pixel electrodes is disposed above first substrate.06-23-2011

Patent applications by Hidekazu Kobayashi, Hara-Mura JP

Hidekazu Kobayashi, Suwa-Gun JP

Patent application numberDescriptionPublished
20110122500HEAD-MOUNTED DISPLAY - A head-mounted display includes: a double-sided display device displayed a image on a first side and a second side opposed the first side; a first optical system that forms the image displayed on the first side of the double-sided display device on one eye of a wearer; and a second optical system that forms the image displayed on the second side of the double-sided display device on the other eye of the wearer. The first optical system and the second optical system have switching mechanisms which make at least a part of view being different from the image displayed on the double-sided display devise visible in eyes of the wearer.05-26-2011

Hidekazu Kobayashi, Hara JP

Patent application numberDescriptionPublished
20110205456IMAGE FORMING APPARATUS AND REAR PROJECTION DISPLAY APPARATUS - An image forming apparatus includes: a screen having a display surface; and a projector that renders an image by scanning light on the display screen, wherein the screen selects, independently in respective regions of the display surface, a light transmission state in which the light is transmitted and a light diffusion state in which the light is diffused, the screen being configured such that the region where address light is irradiated is in the light diffusion state and the region where the address light is not irradiated is in the light transmission state, and the projector scans the address light on the display surface such that an area of the display surface corresponding to an image displayed on the display surface changes to the light diffusion state.08-25-2011

Hidekazu Kobayashi, Miyagi-Ken JP

Patent application numberDescriptionPublished
20110221434CURRENT SENSOR INCLUDING MAGNETIC DETECTING ELEMENT - A current sensor includes a magnetic detecting element, a bridge circuit including a plurality of resistance elements, and a feedback coil placed adjacent to the magnetic detecting element and generating a cancelling magnetic field for cancelling the induced magnetic field based on the output from the bridge circuit. The wiring patterns forming the bridge circuit are routed so as not to intersect with each other when seen in a plan view. Only the resistance elements constituting each series circuit of the bridge circuit are connected to each other by the wiring pattern in an enclosed area which encloses each resistance element constituting the bridge circuit, and the wiring pattern branched from the wiring pattern is connected to the terminal which is installed in a quantity of only one, outside the enclosed area.09-15-2011