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公开(公告)号:US20170219746A1
公开(公告)日:2017-08-03
申请号:US15507018
申请日:2015-08-10
Applicant: National Institute for Materials Science
Inventor: Tadaaki Nagao , Thang Duy Dao , Takahiro Yokoyama , Satoski Ishii
CPC classification number: G02B5/003 , C23C14/081 , C23C14/18 , C23C14/5873 , C23F1/02 , G01J5/0853 , G02B1/002 , G02B5/22 , H01B1/02 , H05K9/00 , H05K9/0088
Abstract: The present invention relates to an electromagnetic wave absorbing/radiating material which includes: a conductor; and a plurality of conductor discs disposed in an array above the surface of the conductor or a perforated conductor layer with a plurality of holes defined in an array above the surface of the conductor.
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公开(公告)号:US11454858B2
公开(公告)日:2022-09-27
申请号:US16809787
申请日:2020-03-05
Inventor: Yosuke Suzuki , Tadaaki Nagao , Akio Watanabe
Abstract: An optical deflector includes: a light transmitting portion through which a light passes; and a pair of electrodes arranged to oppose to each other with the light transmitting portion interposed therebetween. The light transmitting portion is a transparent ion conductor made of a single crystal or polycrystal. The pair of electrodes apply a predetermined voltage to the light transmitting portion to move ions inside the transparent ion conductor so as to change a traveling direction of the light passing through the light transmitting portion.
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公开(公告)号:US11142687B2
公开(公告)日:2021-10-12
申请号:US16486017
申请日:2018-03-01
Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
Inventor: Tadaaki Nagao , Karuna Kar Nanda
IPC: C09K11/65 , C09K11/02 , B82Y30/00 , B82Y40/00 , C01B32/182 , A01G7/00 , H01L33/50 , H01L31/055 , B82Y20/00 , C08L101/14
Abstract: The present invention has for its object to provide a composition in which a photoluminescent carbon nanoparticle having no dependency of an emission wavelength on an excitation wavelength and being enhanced in terms of quantum efficiency is dispersed, a process of producing the same, and an application of the same. The composition of the invention has a photoluminescent carbon nanoparticle dispersed in a water-soluble solvent. The photoluminescent carbon nanoparticle contains a carbon atom, an oxygen atom, a nitrogen atom, and a hydrogen atom if required. As shown in FIG. 6, the photoluminescent carbon nanoparticle has an intensity of a C—N bond and/or C—O bond-derived peak (285.98 eV) larger than that of a C—C bond and/or C—H bond-derived peak (284.95 eV) in terms of X-ray photoelectron spectroscopic spectra, and a Raman spectrum having a peak based on a G-band and a D-band.
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公开(公告)号:US10290802B2
公开(公告)日:2019-05-14
申请号:US15536150
申请日:2016-01-13
Applicant: National Institute for Materials Science
Inventor: Toshihide Nabatame , Tadaaki Nagao
IPC: H01L45/00 , H01L27/24 , H01L27/105 , C23C16/40 , H01L49/00
Abstract: The forming voltage of a variable resistance device used in a non-volatile memory and the like is decreased, and repetition characteristics are improved. In an element structure in which a metal oxide film is sandwiched between a lower electrode and an upper electrode, an island-shaped/particulate region of amorphous aluminum oxide or aluminum oxycarbide is formed on the metal oxide film. Because an oxide deficiency, serving as the nucleus of a filament for implementing an on/off operation of the variable resistance device, is formed from the beginning under the island-shaped or particulate aluminum oxide or the like, the conventional creation of an oxide deficiency by high-voltage application in the initial period of forming can be eliminated. Such a region can be fabricated using a small number of cycles of an ALD process.
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5.
公开(公告)号:US10067270B2
公开(公告)日:2018-09-04
申请号:US15507018
申请日:2015-08-10
Applicant: National Institute for Materials Science
Inventor: Tadaaki Nagao , Thang Duy Dao , Takahiro Yokoyama , Satoshi Ishii
IPC: G02B5/20 , G02B5/00 , G02B1/00 , C23C14/58 , C23F1/02 , H05K9/00 , H01B1/02 , C23C14/18 , C23C14/08
Abstract: The present invention relates to an electromagnetic wave absorbing/radiating material which includes: a conductor; and a plurality of conductor discs disposed in an array above the surface of the conductor or a perforated conductor layer with a plurality of holes defined in an array above the surface of the conductor.
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