-
公开(公告)号：US20240190639A1
公开(公告)日：2024-06-13
申请号：US18279409
申请日：2022-03-11
Applicant: DENKA COMPANY LIMITED
Inventor： Hiroyuki SHIOTSUKI , Teruhiro AIKYO , Takashi FUKUDA
CPC classification number: B65D81/24 , B65B31/00 , B65D81/2084 , C01B33/18 , C01F5/02 , C09C1/028 , C09C1/3081 , C09C3/12
Abstract: A method for producing a packaging body of the present invention includes a production step of producing a metal oxide powder, and a sealing step of placing the metal oxide powder in a bag that is filled with at least one gas selected from the group consisting of a noble gas, nitrogen gas, oxygen gas, and dry air, followed by sealing the bag, the metal oxide powder being a silica powder or a magnesia powder, the bag having a moisture permeability as measured according to JIS Z 0222-1959 of 0.30 g/(m2·day) or less.
-
公开(公告)号：US20250136454A1
公开(公告)日：2025-05-01
申请号：US18837178
申请日：2023-02-06
Applicant: Denka Company Limited
Inventor： Takaaki MINAMIKAWA , Hiroyuki SHIOTSUKI , Genta KARINO
Abstract: This spherical silica powder is configured such that when the spherical silica powder is measured using a wet flow type image analyzer, a sphericity of a particle size of more than or equal to 5 μm and less than 10 μm is represented by S1, a sphericity of a particle size of more than or equal to 10 μm and less than 20 μm is represented by S2, a sphericity of a particle size of more than or equal to 20 μm and less than 30 μm is represented by S3, a sphericity of a particle size of more than or equal to 30 μm and less than 45 μm is represented by S4, and a sphericity of a particle size of more than or equal to 45 μm is represented by S5, at least two of S1, S2, S3, S4, and S5 are more than or equal to 0.74.
-
公开(公告)号：US20240158242A1
公开(公告)日：2024-05-16
申请号：US18282319
申请日：2022-03-22
Applicant: DENKA COMPANY LIMITED
Inventor： Takaaki MINAMIKAWA , Hiroyuki SHIOTSUKI , Koji MIYAZAKI
IPC: C01B33/18
CPC classification number: C01B33/18 , C01P2004/51 , C01P2006/12 , C01P2006/20 , C01P2006/90
Abstract: A silicon dioxide powder has a uranium content of 0.8 ppb by mass or less and a sphericity of 0.80 or more. The silicon dioxide powder has a low uranium content and a high sphericity.
-
公开(公告)号：US20240150184A1
公开(公告)日：2024-05-09
申请号：US18282347
申请日：2022-03-11
Applicant: DENKA COMPANY LIMITED
Inventor： Hiroyuki SHIOTSUKI , Takaaki MINAMIKAWA , Koji MIYAZAKI
IPC: C01B33/18
CPC classification number: C01B33/18 , C01P2004/61 , C01P2006/12 , C01P2006/40 , C01P2006/80
Abstract: Silica powder having a dielectric loss tangent of 0.004 or less, in which the number of silicon metal particles in 10 g of the silica powder is 30 or less. A method for producing silica powder, including a heating step of heating silica powder in the presence of chlorine. Silica powder having a low dielectric loss tangent and a low silicon metal content, and a method for producing the silica powder can be provided.
-
Patent Agency Ranking
公开(公告)号：US20240182318A1
公开(公告)日：2024-06-06
申请号：US18282440
申请日：2022-03-22
Applicant: DENKA COMPANY LIMITED
Inventor： Takaaki MINAMIKAWA , Hiroyuki SHIOTSUKI , Koji MIYAZAKI
CPC classification number: C01F7/46 , C01B33/181 , C01P2004/32 , C01P2004/61 , C01P2006/12
Abstract: A metal oxide powder in which the metal is other than uranium, iron and titanium, and, in the metal oxide powder, the content rate of uranium is 1.0 ppb by mass or less, the content rate of iron is 100 ppm by mass or less in terms of Fe2O3, the content rate of titanium in terms of TiO2 oxide is 8 ppm by mass or less. Included is a method of producing a metal oxide powder which removes impurities from a metal oxide powder so that a metal oxide powder having a high purity can be obtained, and a metal oxide powder produced according to the method.
-
公开(公告)号：US20230357008A1
公开(公告)日：2023-11-09
申请号：US18246159
申请日：2021-09-27
Applicant: Denka Company Limited
Inventor： Go TAKEDA , Hiroyuki SHIOTSUKI , Takaaki TANAKA
IPC: C01B21/064
CPC classification number: C01B21/0648 , C01P2002/76 , C01P2004/50 , C01P2004/61 , C01P2006/80 , C01P2006/12
Abstract: One aspect of the present disclosure provides a boron nitride powder containing agglomerated particles formed by agglomeration of primary particles of hexagonal boron nitride, in which a degree of purity is 98.5% by mass or more, and a concentration of elutable impurities is 700 ppm or less.
-
公开(公告)号：US20250033982A1
公开(公告)日：2025-01-30
申请号：US18836730
申请日：2023-02-06
Applicant: Denka Company Limited
Inventor： Takaaki MINAMIKAWA , Hiroyuki SHIOTSUKI , Genta KARINO
IPC: C01B33/18
Abstract: In spherical silica powder according to an embodiment of the present invention, an NO3− content obtained based on an ion chromatography method is less than or equal to 5 ppm.
-
公开(公告)号：US20230399264A1
公开(公告)日：2023-12-14
申请号：US18246811
申请日：2021-09-27
Applicant: Denka Company Limited
Inventor： Go TAKEDA , Hiroyuki SHIOTSUKI , Takaaki TANAKA
IPC: C04B35/583 , C04B35/626
CPC classification number: C04B35/583 , C04B35/62645 , C04B2235/5409 , C04B2235/5436 , C04B2235/386
Abstract: One aspect of the present disclosure provides a boron nitride powder containing agglomerated particles formed by agglomeration of primary particles of hexagonal boron nitride, in which a degree of purity is 98.5% by mass or more, and a number of particles containing carbon is 10 or less per 10 g of the boron nitride powder.
-
公开(公告)号：US20230357007A1
公开(公告)日：2023-11-09
申请号：US18246145
申请日：2021-09-27
Applicant: Denka Company Limited
Inventor： Go TAKEDA , Hiroyuki SHIOTSUKI , Takaaki TANAKA
IPC: C01B21/064
CPC classification number: C01B21/0648 , C01P2004/50 , C01P2006/80 , C01P2006/42 , C01P2004/61 , C01P2006/12
Abstract: One aspect of the present disclosure provides a boron nitride powder containing agglomerated particles formed by agglomeration of primary particles of hexagonal boron nitride, in which a degree of purity is 98.5% by mass or more, and a number of particles having a magnetizing ability is 10 or less per 10 g of the boron nitride powder.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.014 seconds)
