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Hideaki Numata, Tokyo JP

Hideaki Numata, Tokyo JP

Patent application numberDescriptionPublished
20090296454MAGNETIC MEMORY CELL AND MAGNETIC RANDOM ACCESS MEMORY - A magnetic memory cell 12-03-2009
20100096715MAGNETIC RANDOM ACCESS MEMORY - A magnetic recording layer 04-22-2010
20100142264MAGNETIC MEMORY CELL, MAGNETIC RANDOM ACCESS MEMORY, AND DATA READ/WRITE METHOD FOR MAGNETIC RANDOM ACCESS MEMORY - The present invention provides a new data writing method for an MRAM which can suppress deterioration of a tunnel barrier layer.06-10-2010
20100149862MAGNETIC RANDOM ACCESS MEMORY - A magnetic random access memory comprises a magnetic recording layer equipped with a magnetization reversal region having a reversible magnetization and through which a write current is made to flow in the in-plane direction, a magnetization fixed layer having a fixed magnetization, a nonmagnetic layer provided between the magnetization reversal region and the magnetization fixed layer, and a heat absorbing structure provided opposing to the magnetic recording layer and having a function of receiving heat generated in the magnetic recording layer and of radiating the heat. Such magnetic random access memory can radiate heat generated in the magnetic recording layer by using the heat absorbing structure and prevent temperature rising caused by the write current flowing in the in-plane direction.06-17-2010
20100163858SWITCHING ELEMENT AND METHOD FOR MANUFACTURING THE SAME - A problem of a switching element using for the active layer a carbon nanotube (CNT) dispersion film that can be manufactured at low temperature has been that sufficient electrical contact and thermal conductivity between the CNTs and the source and drain electrode surfaces are not obtained. The switching element of the present invention has a structure in which a mixed layer of carbon nanotubes and a metal material, and a metal layer of the metal material are laminated in this order on source and drain electrodes, and thereby, the CNT-dispersed film and the electrode surfaces can be in firm electrical, mechanical, and thermal contact with each other. Thus, a switching element exhibiting good and stable transistor characteristics is obtained with a low-temperature, convenient, and low-cost process.07-01-2010
20100224862CARBON NANOTUBE STRUCTURE AND THIN FILM TRANSISTOR - When an electronic element using a carbon nanotube (CNT) is fabricated, particularly when a carbon nanotube thin film is formed on a previously formed electrode, a CNT film is manufactured on the previously formed electrode, and the CNT film on the electrode is used as an electronic element, as it is. In this case, a problem is that unless the carbon nanotubes and the electrode are in sufficient contact with each other, the contact resistance increases, and sufficient element properties are not obtained. When a carbon nanotube thin film is formed on a previously formed electrode, a conductive organic polymer thin film is formed, before or after the carbon nanotube thin film is manufactured, to decrease the contact resistance.09-09-2010
20100252802SEMICONDUCTOR ELEMENT - This invention provides a semiconductor element which uses a plurality of carbon nanotubes as a current path, can reduce contact resistance of its electrode contact part, and has excellent electrical characteristics. This semiconductor element is characterized in that the semiconductor element includes a current path (10-07-2010
20110114914FIELD EFFECT TRANSISTOR AND CIRCUIT DEVICE - An end portion (05-19-2011

Patent applications by Hideaki Numata, Tokyo JP