227 patents
Page 7 of 12
Utility
Composite Tungsten Oxide Film and Method for Producing Same, and Film-deposited Base Material and Article Each Provided with Said Film
20 May 21
A composite tungsten oxide film having high film smoothness, with a function to shield infrared light by reflecting infrared light by a thermal insulation, while maintaining transparency in a visible light region, and a method for manufacturing the composite tungsten oxide film, and a film-deposited base material or an article using these functions.
Keiichi SATO, Isao ANDO
Filed: 6 Jun 19
Utility
Alloy Powder and Method for Producing Same
29 Apr 21
Provided are: an alloy powder that can be obtained from a waste lithium ion battery, wherein the alloy powder can be dissolved in an acid solution and enables recovery of metals contained in the alloy powder; and a method for producing the alloy powder.
Ryo Togashi, Yu Yamashita
Filed: 11 Jul 19
Utility
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22 Apr 21
The present invention provides a positive electrode active material for a non-aqueous electrolyte secondary battery including a lithium metal composite oxide powder represented by a general formula: LizNi1−x−yCoxMyO2+α, wherein 0<x≤0.35, 0≤y≤0.35, 0.95≤z≤1.30, −0.15≤α≤0.15, and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti and Al; and a coating layer placed on particle surfaces of the lithium metal composite oxide powder; wherein the coating layer is a mixed-phase of a crystalline phase and an amorphous phase.
Jiro OKADA, Tetsufumi KOMUKAI, Jun YOKOYAMA, Takahiro OGAWA, Tomoko NAKAYAMA
Filed: 28 Mar 19
Utility
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8 Apr 21
To provide a copper-clad laminate which maintains adhesion between a resin film and a conductor layer and which suppresses the occurrence of wrinkles.
Junichi NAGATA, Hironori TANBA
Filed: 13 May 20
Utility
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25 Mar 21
A near-infrared absorbing material fine particle dispersion, a near-infrared absorber laminate, and a laminated structure for near-infrared absorption can exhibit higher near-infrared absorption property, compared to near-infrared fine particle dispersions, near-infrared absorber laminates, and laminated structures for near-infrared absorption, containing tungsten oxides or composite tungsten oxides according to the conventional art.
Hiroki NAKAYAMA, Hiroshi KOBAYASHI, Kenji FUKUDA
Filed: 1 Feb 19
Utility
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11 Mar 21
Provided are a near-infrared absorbing material fine particle dispersion, a near-infrared absorber, and a laminated structure for near-infrared absorption, which can exhibit higher near-infrared absorption property, compared to near-infrared fine particle dispersions, near-infrared absorber, and laminated structures for near-infrared absorption, containing tungsten oxides or composite tungsten oxides according to the conventional art.
Hiroki NAKAYAMA, Hiroshi KOBAYASHI, Kenji FUKUDA
Filed: 1 Feb 19
Utility
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11 Mar 21
A method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries is disclosed which includes cleaning a powder formed of a lithium-nickel composite oxide represented by a general formula LizNi1-x-yCoxMyO2 where 0≤x≤0.35; 0≤y≤0.10; 0.95≤z≤1.10; and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al with an aqueous lithium carbonate solution and drying the cleaned powder.
Hiroko Oshita, Kazuomi Ryoshi
Filed: 19 Nov 20
Utility
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4 Mar 21
Provided is an infrared absorber object which comprises a resin medium and, disposed therein, agglomerates of composite tungsten oxide particles, wherein the agglomerates of composite tungsten oxide particles have one or more shapes selected from among strips, flakes, and rods.
Kenji FUKUDA, Hiroshi KOBAYASHI, Hiroki NAKAYAMA
Filed: 9 Nov 18
Utility
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18 Feb 21
Surface-treated infrared-absorbing fine particles with excellent moisture and heat resistance and excellent infrared-absorbing properties, surface-treated infrared absorbing fine particle powder containing the surface-treated infrared absorbing fine particles, an infrared absorbing fine particle dispersion liquid and an infrared absorbing fine particle dispersion body using the surface-treated infrared absorbing fine particles, and a method for producing them, wherein a surface of infrared absorbing particles is coated with a coating layer containing at least one selected from hydrolysis product of a metal chelate compound, polymer of hydrolysis product of a metal chelate compound, hydrolysis product of a metal cyclic oligomer compound, and polymer of hydrolysis product of a metal cyclic oligomer compound.
Hirofumi TSUNEMATSU, Takeshi CHONAN, Hideaki FUKUYAMA
Filed: 13 Nov 18
Utility
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11 Feb 21
Provided is a solvent extraction method that allows selectively separating magnesium from an acidic aqueous solution of sulfuric acid.
Hideki OHARA, Satoshi ASANO, Hiroshi KOBAYASHI, Masatoshi TAKANO, Shota SANJO
Filed: 21 Nov 18
Utility
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11 Feb 21
Provided is a cathode active material for a non-aqueous electrolyte secondary battery that improves the cycling characteristic and high-temperature storability without impairing the charge/discharge capacity and the output characteristics.
Takehide HONMA, Koji YAMAJI, Ryozo USHIO
Filed: 29 Oct 20
Utility
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4 Feb 21
A method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries, includes: a mixing step of adding a W compound powder having a solubility A adjusted to 2.0 g/L or less to a Li-metal composite oxide powder and stirring in water washing of the composite oxide powder, the solubility A being determined by stirring the W compound in water having a pH of 12.5 at 25° C. for 20 minutes, the composite oxide powder being represented by the formula: LicNi1-x-yCoxMyO2 and composed of primary and secondary particles, followed by solid-liquid separation, to thereby obtain a tungsten-containing mixture with the tungsten compound dispersed in the composite oxide powder; and a heat-treating step of heat-treating the mixture to uniformly disperse W on the surface of primary particles and thereby form a compound containing W and Li from the W and Li in the mixture, on the surface of primary particles.
Yuki Furuichi, Tetsufumi Komukai
Filed: 21 Oct 20
Utility
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4 Feb 21
Provided is a method for obtaining high-purity scandium oxide efficiently from a solution containing scandium.
Tatsuya Higaki, Hiroshi Kobayashi
Filed: 23 Jan 19
Utility
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21 Jan 21
A non-aqueous electrolyte secondary battery that has a low initial resistance and an increase in resistance after charging and discharging is suppressed.
Yuji YAMAMOTO, Momoko PROCTER, Yoshinari MAKIMURA, Tetsutaro HAYASHI, Willy Shun Kai Bong
Filed: 10 Jul 20
Utility
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21 Jan 21
Provided is a nonaqueous electrolyte secondary battery with a positive electrode active material that contains an excess of Li and has a layered structure, the nonaqueous electrolyte secondary battery having a high output and enabling prevention of gelation of the positive electrode active material layer-forming paste during production.
Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
Filed: 15 Jul 20
Utility
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21 Jan 21
A non-aqueous electrolyte secondary battery which is obtained using a lithium composite oxide having a layered structure and coated with a tungsten-containing compound in a positive electrode active substance, and which has a low initial resistance, and in which an increase in resistance following repeated charging and discharging is suppressed.
Yuji YAMAMOTO, Momoko PROCTER, Yoshinari MAKIMURA, Tetsutaro HAYASHI, Willy Shun Kai Bong
Filed: 10 Jul 20
Utility
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21 Jan 21
A non-aqueous electrolyte secondary battery is obtained using a lithium composite oxide having a layered structure in a positive electrode active substance.
Yuji YAMAMOTO, Momoko PROCTER, Yoshinari MAKIMURA, Tetsutaro HAYASHI, Willy Shun Kai Bong
Filed: 10 Jul 20
Utility
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21 Jan 21
A nonaqueous electrolyte secondary battery uses, as a positive electrode active material, a lithium composite oxide having a layered structure and coated with lithium tungstate, and has a low resistance.
Yuji YAMAMOTO, Momoko PROCTER, Yoshinari MAKIMURA, Tetsutaro HAYASHI, Willy Shun Kai BONG
Filed: 10 Jul 20
Utility
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21 Jan 21
The present disclosure can bring excellent output characteristics to a nonaqueous electrolyte secondary battery that uses a cathode active material containing tungsten while desired durability is secured.
Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
Filed: 16 Jul 20
Utility
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21 Jan 21
The production method is a method for producing a positive electrode active material for a lithium ion secondary battery which contains at least nickel and lithium, the method including: a firing process in which a mixture of a nickel compound powder and a lithium compound powder is fired; and a water washing process in which a lithium-nickel composite oxide powder obtained in the firing process is washed with water, wherein the firing process is performed under conditions such that a value obtained by dividing a ratio of an amount-of-substance of lithium to a total amount-of-substance of transition metals other than lithium in the lithium-nickel composite oxide powder after the washing with water by a ratio of an amount-of-substance of lithium to a total amount-of-substance of transition metals other than lithium in the lithium-nickel composite oxide powder before the washing with water exceeds 0.95.
Yasutaka Kamata, Yuji Kawakami, Tomomichi Nihei
Filed: 22 Oct 18