公开(公告)号：US20130196157A1

公开(公告)日：2013-08-01

申请号：US13739913

申请日：2013-01-11

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Terunori Yamaguchi ,  Shinji Hashiguchi ,  Mitsuo Ueno

IPC: D01F11/04

CPC classification number: D01F11/04 ,  B29C67/0014 ,  D01D5/24 ,  D06M11/09 ,  D06M11/11 ,  D06M11/17 ,  D06M11/22

Abstract: It is intended to provide a method of producing a hollow construct, which may be in various shapes such as a fiber or a film as well as in various sizes and has chemical resistance, made of a fluorinated hydrocarbon polymer, a fluorinated carbon polymer or a polymer carrying a nitrogen-containing group, a silicon-containing group, an oxygen-containing group, a phosphorus-containing group or a sulfur-containing group having been introduced into the above-described polymer; and a hollow construct obtained by this method.

公开(公告)号：US20250011576A1

公开(公告)日：2025-01-09

申请号：US18709948

申请日：2022-11-09

Applicant: Kyoto University ,  STELLA CHEMIFA CORPORATION

Inventor： Hiroki Tanaka ,  Yoshinori Sato ,  Masashi Yamamoto ,  Keiichi Nii ,  Tetsuo Nishida

IPC: C08K5/55 ,  C08J3/205 ,  G21F1/10

Abstract: Provided is a neutron shielding material having good light transparency and excellent shielding performance against thermal neutron rays, and a method for producing the same. A neutron shielding material according to the present invention includes a light transmitting material and a boron compound enriched in a boron isotope having a mass number of 10, the neutron shielding material being formed of a molded product having light transparency. Shielding performance against thermal neutron rays is improved by containing a boron compound enriched in a boron isotope having a mass number of 10. As a result, the neutron shielding material can be widely applied to members requiring visibility and neutron blocking properties.

公开(公告)号：US20240240084A1

公开(公告)日：2024-07-18

申请号：US18559459

申请日：2021-06-11

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Yosuke YAMAZAKI ,  Kenta HORIGAMI ,  Kazuya DATE ,  Rui HASEBE ,  Keiichi NII ,  Tetsuo NISHIDA

IPC: C09K13/08 ,  H01L21/311

CPC classification number: C09K13/08 ,  H01L21/31111

Abstract: Provided are a micromachining processing agent and a micromachining processing method that enable favorable micromachining while suppressing remaining of fine particles on an object to be processed having at least a silicon-containing insulating film. The micromachining processing agent according to the present invention is a micromachining processing agent for micromachining an object to be processed having at least a silicon-containing insulating film, the micromachining processing agent containing: a compound represented by a chemical formula (1) below; hydrogen fluoride; ammonium fluoride; and water,




wherein Rf represents perfluoroalkyl group having 1 to 4 carbon atoms, and M+ represents a hydrogen ion or an ammonium ion, wherein a content of the compound is 0.001 mass % or more and 0.5 mass % or less with respect to a total mass of the micromachining processing agent, a content of the hydrogen fluoride is 0.05 mass % or more and 25 mass % or less with respect to a total mass of the micromachining processing agent, a content of the ammonium fluoride is 0.5 mass % or more and 40 mass % or less with respect to a total mass of the micromachining processing agent, and the content of the hydrogen fluoride and the content of the ammonium fluoride satisfy a relational expression (1) below:







Y
≦



-

0
.
8


⁢
X

+

4
⁢
0






(
1
)







wherein X represents a concentration (mass %) of hydrogen fluoride and Y represents a concentration (mass %) of ammonium fluoride.

公开(公告)号：US11005125B2

公开(公告)日：2021-05-11

申请号：US15548639

申请日：2016-01-21

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Toshitaka Sakaguchi ,  Sojiro Kon ,  Yoshifumi Katsura ,  Tetsuo Nishida

IPC: H01M10/0567 ,  H01M10/052 ,  C07F9/09 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/42

Abstract: A nonaqueous electrolytic solution for a secondary battery exhibits excellent cycle characteristics even in high-temperature environments. The solution includes at least one of boric acid esters, acid anhydrides, cyclic carbonates having an unsaturated bond, cyclic carbonates having a halogen atom, cyclic sulfonic acid esters, and amines having an acetoacetyl group. A secondary battery having a positive electrode and a negative electrode makes use of this electrolytic solution.

公开(公告)号：US20210036334A1

公开(公告)日：2021-02-04

申请号：US17043753

申请日：2019-04-15

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Sojiro KON ,  Natsuki MINE ,  Yoshinori SATO ,  Masashi YAMAMOTO ,  Tetsuo NISHIDA

IPC: H01M4/92 ,  H01M8/1004 ,  H01M4/96

Abstract: A fuel cell catalyst which has high power output characteristics and suppresses degradation of power generation performance due to starting, stopping or load variation; a manufacturing method thereof; a membrane electrode assembly for fuel cell; and a fuel cell including the same. The fuel cell catalyst includes at least catalytically active species and a carrier supporting the catalytically active species. The catalytically active species are at least one selected from the group consisting of platinum, a platinum alloy, and a core-shell catalyst in which a core of a metal different from platinum is coated with a shell containing platinum, the carrier is a carbon material, and at least one of the catalytically active species and the carrier contain(s) fluorine atoms.

公开(公告)号：US10793585B2

公开(公告)日：2020-10-06

申请号：US15751841

申请日：2016-08-09

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Toshitaka Sakaguchi ,  Sojiro Kon ,  Yoshifumi Katsura ,  Masashi Yamamoto ,  Tetsuo Nishida

IPC: C07F9/11 ,  H01M10/054 ,  H01M10/0567 ,  C07F9/09 ,  H01M10/052 ,  H01G11/64 ,  H01M10/0568 ,  C07F9/12 ,  C07H15/252 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569

Abstract: Disclosed is a phosphoric acid diester salt which can suppress deterioration of charge-discharge characteristics of a power storage element, and can suppress the rise in internal resistance after storage at high temperature, a production method therefor, a non-aqueous electrolytic solution for a power storage element, and a power storage element. Disclosed is a phosphoric acid diester salt represented by the following chemical formula (1): wherein Mn+ represents a hydrogen ion, an alkali metal ion, an alkali earth metal ion, an aluminum ion, a transition metal ion, or an onium ion; R1 and R2 are different from each other and represent a hydrocarbon group having 1 to 10 carbon atoms, or a hydrocarbon group having 1 to 10 carbon atoms and having at least one of a halogen atom, a heteroatom, and an unsaturated bond; and n represents a valence.

公开(公告)号：US10046971B2

公开(公告)日：2018-08-14

申请号：US14971685

申请日：2015-12-16

Applicant: Stella Chemifa Corporation ,  Tohoku University

Inventor： Kazuyuki Tohji ,  Yoshinori Sato ,  Koji Yokoyama ,  Kazutaka Hirano ,  Yoshinori Sato

IPC: H01M4/96 ,  C01B21/082 ,  C01B31/02

Abstract: A nitrogen-containing carbon material to the present invention comprises a carbon material having a carbon skeleton formed of carbon atoms and nitrogen atoms introduced into the carbon material, wherein part of carbon atoms in the carbon skeleton are substituted with nitrogen atoms. The nitrogen-containing carbon material according to the present invention can be produced by a production method including the steps of bringing the carbon material into contact with a first treatment gas containing a fluorine-containing gas to subject a surface of the carbon material to a fluorination treatment; and bringing the carbon material after being subjected to the fluorination treatment into contact with a second treatment gas containing a nitrogen-containing gas with heating to perform a nitriding treatment.

公开(公告)号：US20180072574A1

公开(公告)日：2018-03-15

申请号：US15563698

申请日：2016-04-22

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Yoshinori SATO ,  Kazutaka HIRANO ,  Yuki KIKUI

IPC: C01B32/168 ,  C01B32/156 ,  C01B32/18 ,  C01B32/194 ,  C01B32/21 ,  C01B32/28 ,  C01B32/354 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: C01B32/168 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/05 ,  C01B32/156 ,  C01B32/18 ,  C01B32/194 ,  C01B32/21 ,  C01B32/28 ,  C01B32/354 ,  C01B2202/26

Abstract: A cross-linked structure of a carbon material is excellent in mechanical strength, such as tensile strength. The carbon materials such as carbon nanotube, graphite, fullerene, and carbon nanocoil, are cross-linked with each other. The carbon materials are cross-linked through a linking group derived from a nucleophilic compound having two or more nucleophilic groups in the molecule.

公开(公告)号：US20180034102A1

公开(公告)日：2018-02-01

申请号：US15548738

申请日：2016-01-21

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Toshitaka SAKAGUCHI ,  Sojiro KON ,  Yoshifumi KATSURA ,  Tetsuo NISHIDA

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0028

Abstract: A nonaqueous electrolytic solution exhibits excellent storage characteristics even in high-temperature environments. The solution for the secondary battery includes at least one of boron complex salts, boric acid esters, acid anhydrides, cyclic carbonates having an unsaturated bond, cyclic carbonates having a halogen atom, cyclic sulfonic acid esters, and amines having an acetoacetyl group. A secondary battery having a positive electrode and a negative electrode makes use of this electrolytic solution.

公开(公告)号：US20170054178A1

公开(公告)日：2017-02-23

申请号：US15118827

申请日：2015-02-16

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Toshitaka SAKAGUCHI ,  Yoshifumi KATSURA ,  Tetsuo NISHIDA

IPC: H01M10/0567 ,  H01M10/054 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/054 ,  H01M2300/0025

Abstract: A phosphodiester salt is added to the electrolytic solution to form a nonaqueous electrolytic solution for a secondary battery. The nonaqueous electrolytic solution has excellent storage characteristics in a temperature load environment. Deterioration of the charge-discharge characteristics of the nonaqueous electrolytic solution and increase in internal resistance of the nonaqueous electrolytic solution are suppressed during storage. A secondary battery having a positive electrode and a negative electrode makes use of this electrolytic solution.

Abstract translation: 向电解液中加入磷酸二酯盐，形成二次电池用非水电解液。 非水电解液在温度负荷环境下具有优良的储存特性。 储存期间，抑制了非水电解液的充放电特性的劣化和非水电解液的内阻增加。 具有正极和负极的二次电池利用该电解液。