428 patents
Utility
Positive Electrode Active Material for Lithium Ion Secondary Battery and Lithium Ion Secondary Battery
18 Jan 24
Yuki Koshika, Haruki Kaneda
Filed: 30 Jun 20
Utility
Positive electrode active material precursor for non-aqueous electrolyte secondary battery, and method of manufacturing positive electrode active material precursor for non-aqueous electrolyte secondary battery
16 Jan 24
A positive electrode active material precursor for a non-aqueous electrolyte secondary battery, including a nickel composite hydroxide particle, is provided, wherein a cross section of the nickel composite hydroxide particle includes a void, a ratio of an area of the void to the cross section of the nickel composite hydroxide particle is less than or equal to 5.0%, a circular region having a radius of 1.78 μm is set at a position where a ratio of an area of the void to the circular region is maximum, on the cross section of the nickel composite hydroxide particle, and the ratio of the area of the void to the circular region is less than or equal to 20%.
Kentaro Sogabe, Kenji Tashiro
Filed: 27 Nov 18
Utility
Nickel composite hydroxide and manufacturing method thereof, cathode active material for nonaqueos-electrolyte secondary battery and manufacturing method thereof, and nonaqueous-electrolyte secondary battery
16 Jan 24
Provided are a cathode active material having a suitable particle size and high uniformity, and a nickel composite hydroxide as a precursor of the cathode active material.
Atsushi Fukui, Katsuya Inoue, Shuhei Oda, Hiroyuki Toya
Filed: 29 Aug 22
Utility
Flotation Method and Flotation System
11 Jan 24
The purpose of the present invention is to provide a flotation method with which a flotation treatment can be efficiently performed even when the substance to undergo flotation is fine mineral particles including particles having a particle diameter of about 25 μμm or less.
Hayato Fujita, Yuji Aoki
Filed: 24 Aug 21
Utility
Positive electrode active material for non-aqueous electrolyte secondary battery and method for producing the same, method for evaluating positive electrode active material for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery
9 Jan 24
A positive electrode active material for non-aqueous electrolyte secondary battery containing a lithium-nickel-manganese composite oxide formed of secondary particles with a plurality of aggregated primary particles, in which the positive electrode active material is represented by a general formula (1): LidNi1−a−b−cMnaMbNbcO2+α, at least a part of niobium is solid-dissolved inside the primary particles, and an amount of lithium to be eluted into water when the positive electrode active material is immersed in water is 0.02% by mass or more and 0.10% by mass or less with respect to the entire positive electrode active material as determined by a neutralization titration method.
Takuma Nakamura, Haruki Kaneda, Yuki Koshika
Filed: 25 Jan 19
Utility
Process for Manufacturing Positive Electrode Active Material for Lithium Ion Secondary Battery, Positive Electrode Active Material for Lithium Ion Secondary Battery, and Lithium Ion Secondary Battery
4 Jan 24
A mixing process of mixing a lithium-transition metal composite oxide with lithium phosphate; a milling process of applying mechanical stress to a mixture obtained in the mixing process to form the lithium-transition metal composite oxide having a layered crystal structure and the lithium phosphate into an amorphous or low-crystalline NiO-like rock-salt type crystal structure; and a heat treatment process of subjecting the mixture to a heat treatment to obtain a lithium-transition metal composite oxide having a layered rock-salt type crystal structure in which lithium phosphate is finely crystallized and dispersed, wherein the lithium-transition metal composite oxide is represented by a general formula: LisNi1-x-y-zCoxMnyMzO2+α, and the crystallized lithium phosphate covers a surface of a primary particle of the lithium-transition metal composite oxide, and is dispersed inside or on a surface of a secondary particle of the lithium-transition metal composite oxide having the layered rock-salt type crystal structure.
Taira AIDA, Naoaki YABUUCHI
Filed: 27 Sep 21
Utility
Alloy powder and method for producing same
2 Jan 24
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
Positive electrode active material for non-aqueous electrolyte secondary battery and method for producing the same, and non-aqueous electrolyte secondary battery and method for producing the same
2 Jan 24
The positive electrode active material is for a non-aqueous electrolyte secondary battery, suppressing deterioration of battery characteristics due to exposure to the atmosphere and having excellent battery capacity.
Kazuomi Ryoshi, Motoaki Saruwatari, Hiroko Oshita, Yoshihiro Otsuka
Filed: 23 Aug 18
Utility
Surface-treated Infrared-absorbing Fine Particles and Method for Producing the Same, Infrared-absorbing Fine-particle Dispersion Liquid, and Infrared-absorbing Fine-particle Dispersion Body
7 Dec 23
Surface-treated infrared-absorbing fine particles, including: infrared-absorbing fine particles; and a coating film containing a metal oxide hydrate provided so as to coat surfaces of the infrared-absorbing fine particles, wherein a carbon concentration is 5.0% by mass or less as measured by a combustion-infrared absorption method.
Hirofumi TSUNEMATSU, Takeshi CHONAN
Filed: 20 Oct 21
Utility
METHOD FOR MANUFACTURING IRON (Fe)-NICKEL (Ni) ALLOY POWDER
30 Nov 23
The method is: a preparation step in which a magnetic metal source, a nucleating agent, a complexing agent, a reducing agent, and a pH adjusting agent are prepared as starting materials; a crystallization step in which a reaction liquid that includes the starting materials and water is prepared, and a crystallized powder that includes the magnetic metals is made to crystallize in the reaction liquid by a reduction reaction; and a recovery step in which the crystallized powder is recovered from the reaction liquid.
Masaya Yukinobu, Minseob Shin, Shiori Mizuno
Filed: 15 Oct 21
Utility
Near-infrared Absorbing Particles, Method for Producing Near-infrared Absorbing Particles, Near-infrared Absorbing Particle Dispersion Body, Near-infrared Absorbing Laminate, and Near-infrared Absorbing Transparent Base Material
30 Nov 23
Near-infrared absorbing particles that includes a cesium tungstate is provided.
Kenji ADACHI, Masao WAKABAYASHI, Satoshi YOSHIO, Hirofumi TSUNEMATSU
Filed: 13 Oct 21
Utility
Positive electrode material for lithium ion battery, positive electrode for lithium ion battery, and lithium ion battery
28 Nov 23
Tsutomu Nozoe, Toyomasa Nakano
Filed: 21 Sep 21
Utility
Positive Electrode Active Material for Lithium Ion Secondary Battery, Method for Producing the Same, and Lithium Ion Secondary Battery
23 Nov 23
A positive electrode active material for a lithium ion secondary battery, in which the lithium-nickel-manganese composite oxide has a hexagonal layered structure, a mole number ratio of elements is represented as Li:Ni:Mn:M:Ti=a:(1-x-y-z):x:y:z, provided that 0.97≤a≤1.25, 0.035≤x≤0.15, 0≤y≤0.15, and 0.01≤z≤0.05, a ratio of a total amount of peak intensities of most intense peaks of a titanium compound to a (003) diffraction peak intensity that is the most intense peak of the hexagonal layered structure is 0.2 or less, a crystallite diameter at (003) plane is 80 nm or more and less than 160 nm, and a specific surface area is 0.7 m2/g or more and 4.0 m2/g or less.
Yuki Koshika, Haruki Kaneda
Filed: 24 Sep 21
Utility
Precursor of Positive Electrode Active Material for Nonaqueous Electrolyte Secondary Batteries and Production Method Thereof and Positive Electrode Active Material for Nonaqueous Electrolyte Secondary Batteries and Production Method Thereof
16 Nov 23
Taira Aida, Hiroyuki Toya
Filed: 12 Jul 23
Utility
Positive electrode active material for non-aqueous electrolyte secondary battery
7 Nov 23
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
Anti-counterfeit ink composition, anti-counterfeit ink, anti-counterfeit printed matter, and method for producing the anti-counterfeit ink composition
7 Nov 23
There is provided an anti-counterfeit ink composition, an anti-counterfeit ink, and an anti-counterfeit printed matter that transmits a visible light region, having absorption in an infrared region, and capable of judging authenticity of a printed matter, and containing composite tungsten oxide fine particles, the composite tungsten oxide fine particles having a hexagonal crystal structure, having a lattice constant such that a-axis is 7.3850 Å or more and 7.4186 Å or less, and c-axis is 7.5600 Å or more and 7.6240 Å or less, and having a particle size of the near-infrared absorbing material fine particles is 100 nm or less, and a method for producing the anti-counterfeit ink composition, the anti-counterfeit ink, the anti-counterfeit printed matter, and the anti-counterfeit ink composition.
Mika Okada, Hirofumi Tsunematsu, Takeshi Chonan
Filed: 19 Jun 18
Utility
Method for recovering valuable metal
7 Nov 23
The present invention provides a method which is capable of more strictly controlling the oxygen partial pressure required during the melting of a starting material, thereby being capable of recovering a valuable metal more efficiently.
Yu Yamashita
Filed: 21 Jun 21
Utility
Near-infrared Shielding Film and Method for Producing Near-infrared Shielding Film
2 Nov 23
A near-infrared shielding film including a continuous film of a cesium tungsten composite oxide represented by a general formula CsxWyOz where 4.8≤x≤14.6, 20.0≤y≤26.7, 62.2≤z≤71.4, and x+y+z=100, is provided.
Kenji ADACHI, Keiichi SATO, Satoshi YOSHIO
Filed: 20 Aug 21
Utility
Infrared absorbing fine particle dispersed powder, dispersion liquid containing infrared absorbing fine particle dispersed powder, ink containing infrared absorbing fine particle dispersed powder, and anti-counterfeit ink, and anti-counterfeit printed matter
17 Oct 23
An infrared absorbing fine particle dispersed powder, dispersion liquid containing infrared absorbing fine particle dispersed powder, ink containing infrared absorbing fine particle dispersed powder, and anti-counterfeit ink and anti-counterfeit printed matter, which are transparent in a visible light region, have excellent infrared absorption properties, and are also excellent in chemical resistance, and an infrared absorbing fine particle dispersed powder containing particles made of solid media and having an average particle size of 1 μm or more and having infrared absorbing fine particles dispersed inside.
Hirofumi Tsunematsu, Takeshi Chonan
Filed: 23 Jul 18
Utility
Atomization Device, Manufacturing Method of Metal Powder, and Manufacturing Method of Valuable Metal
12 Oct 23
The present invention is an atomization device for manufacturing metal powder by spraying a fluid to molten metal, said device comprising: a tundish into which the molten metal is poured and discharged from a discharge nozzle installed on a bottom part; fluid spray nozzles disposed below the tundish and spraying the fluid to the molten metal dropping from the tundish; a means for measuring a molten-metal surface height inside the tundish from an image obtained by imaging the inside of the tundish; and a means for, upon calculating an amount of the molten metal to be poured into the tundish from the molten-metal surface height, discharging the molten metal in such a manner that the height is maintained substantially constant.
Ryo Togashi
Filed: 18 Aug 21