227 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
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
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
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 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
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
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
Utility
Method for Treating Sulfide
21 Sep 23
Provided is a method for treating a sulfide, the method being suitable for obtaining nickel and/or cobalt from a sulfide containing copper and nickel and/or cobalt.
Hiroshi Takenouchi, Shin-ichi Heguri, Satoshi Asano, Hirofumi Shouji
Filed: 5 Aug 21
Utility
Method for Recovering Lithium and Method for Producing Lithium Carbonate
21 Sep 23
Disclosed is A method for recovering lithium from slag containing at least aluminum and lithium, the slag being provided by melting a lithium-ion secondary battery to be disposed of to obtain molten metal containing valuable metal and molten slag containing at least aluminum and lithium and separating the slag containing at least aluminum and lithium from the molten metal containing valuable metal.
Takuro ABE, Naoki HOSODA, Shinsuke KATAYAMA, Satoshi ASANO, Toshihiko NAGAKURA
Filed: 13 Apr 21
Utility
Thick Film Resistor Paste, Thick Film Resistor, and Electronic Component
31 Aug 23
To provide a thick film resistor paste for a resistor having a smaller resistance change rate and excellent surge resistance, a thick film resistor using the thick film resistor paste, and an electronic component provided with the thick film resistor.
Masaki Ando
Filed: 30 Apr 21
Utility
Dark Powder Dispersion Liquid, Dark Powder Dispersion Body and Colored Layer-attached Base Material
31 Aug 23
A dark powder dispersion liquid including a dark pigment, composite tungsten oxide particles and a solid medium, wherein a mass ratio of the dark pigment to the composite tungsten oxide particles (mass of dark-colored pigment/mass of composite tungsten oxide fine particles) is 0.01 or more and 5 or less.
Takafumi ITO, Keiichi SATO, Mika OKADA
Filed: 9 Apr 21
Utility
Alloy Powder, Method for Manufacturing Same, and Method for Recovering Valuable Metal
17 Aug 23
Provided are: an alloy powder in which nickel and cobalt can be easily dissolved in an acid and stably leached with an acid; a manufacturing method with which an alloy powder that enables stable acid leaching can be obtained at low cost; and a method for recovering a valuable metal using the manufacturing method.
Ryo Togashi
Filed: 18 Aug 21
Utility
Method for Recovering Valuable Metal
17 Aug 23
Provided is a method which allows for strict control of an oxygen partial pressure required for the heating and melting of a raw material, and thereby more efficient recovery of a valuable metal.
Yu Yamashita, Toshihiko Nagakura, Tomoya Hagio
Filed: 29 Jun 21
Utility
Method for Recovering Valuable Metal
10 Aug 23
Provided is a method that allows for efficient removal of an impurity metal, and further, the recovery of a valuable metal with high efficiency.
Kazunari Maeba, Yu Yamashita, Toshihiko Nagakura, Junichi Takahashi, Ryo Togashi
Filed: 12 Jul 21
Utility
Nickel-manganese Composite Hydroxide, Method for Producing the Same, Positive Electrode Active Material for Nonaqueous Electrolyte Secondary Battery, Method for Producing the Same, and Nonaqueous Electrolyte Secondary Battery
10 Aug 23
Provided are a positive electrode active material with which a nonaqueous electrolyte secondary battery having a high energy density can be obtained, a nickel-manganese composite hydroxide suitable as a precursor of the positive electrode active material, and production methods capable of easily producing these in an industrial scale.
Haruki Kaneda, Yuki Koshika, Takaaki Ando
Filed: 13 Apr 23
Utility
Rare Earth-iron-nitrogen-based Magnetic Powder, Compound for Bonded Magnet, Bonded Magnet, and Method for Producing Rare Earth-iron-nitrogen-based Magnetic Powder
3 Aug 23
A rare earth-iron-nitrogen-based magnetic powder according to this invention contains, as main constituent components, a rare-earth element (R), iron (Fe), and nitrogen (N).
Satoshi Sugimoto, Masashi Matsuura, Takashi Ishikawa, Yukinobu Yoneyama
Filed: 31 Mar 21
Utility
Bubble Measurement Device and Bubble Measurement Method
20 Jul 23
A bubble measurement device for measurement of bubbles moving in a liquid includes a measurement chamber having an image capturing surface; an image capturing device that captures an image of the bubbles passing along the image capturing surface; an introduction pipe that introduces the bubbles into the measurement chamber; a retaining tank that stores the liquid; a supply pump that draws up the liquid; a drain pipe that returns the liquid into the retaining tank; and a flow velocity adjusting mechanism that adjusts a flow velocity of the liquid passing along the image capturing surface.
Yoshihiko NAKAO
Filed: 20 Mar 23