公开(公告)号：US20190322531A1

公开(公告)日：2019-10-24

申请号：US16309284

申请日：2017-06-09

Applicant: Tohoku University ,  Stella Chemifa Corporation

Inventor： Kazuyuki TOHJI ,  Yoshinori SATO ,  Koji YOKOYAMA ,  Kazutaka HIRANO ,  Yoshinori SATO

IPC: C01B32/174 ,  C01B32/159 ,  H01M4/96

Abstract: Disclosed is a carbon material, such as a carbon nanotube, into which a boron atom and/or a phosphorus atom is/are introduced while maintaining its characteristic structures and functions and a method for producing the same. The carbon material of the present invention is one in which a boron atom and/or a phosphorus atom is/are introduced into part of carbon atoms composing the carbon material, and can be produced by a method for producing a carbon material including the steps of: bringing a carbon material into contact with a fluorination treatment gas containing a fluorine-containing gas, thereby subjecting a surface of the carbon material to fluorination treatment; and bringing the carbon material after the fluorination treatment into contact with a boronization treatment gas containing a boron-containing gas, thereby subjecting to boronization treatment and/or into contact with a phosphorization treatment gas containing a phosphorus-containing gas, thereby subjecting to phosphorization treatment.

公开(公告)号：US20190112193A1

公开(公告)日：2019-04-18

申请号：US16097227

申请日：2017-04-20

Applicant: Stella Chemifa Corporation

Inventor： Akira ISHIMARU ,  Yoshinori SATO ,  Hironori MATSUSHITA ,  Kazutaka HIRANO ,  Tetsuo NISHIDA

IPC: C01B32/174 ,  H01B5/14

Abstract: To provide a novel immobilized product in which a carbon material and/or a silicon material is/are immobilized on a base material surface by a chemical bond via a linking group, and a method for producing the same. The immobilized product is an immobilized product in which a carbon material is immobilizing on a surface of a base material, wherein the carbon material is chemically bonded on the surface of the base material via a linking group, and the linking group is at least one selected from the group consisting of a —NH group, a —NH—R1—NH group, a —SO group, a R2 group, a —O—R3—O group, and a R4 group (in which the R1 to R4 each independently represent at least one selected from the group consisting of a chain alkyl group, a cyclic alkyl group, a chain alkenyl group, a cyclic alkenyl group, a chain alkynyl group, etc.).

公开(公告)号：US20250033972A1

公开(公告)日：2025-01-30

申请号：US18911928

申请日：2024-10-10

Applicant: Tohoku University ,  Stella Chemifa Corporation

Inventor： Kazuyuki TOHJI ,  Yoshinori SATO ,  Koji YOKOYAMA ,  Kazutaka HIRANO ,  Yoshinori SATO

IPC: C01B32/174 ,  C01B32/159 ,  H01M4/96

Abstract: Disclosed is a carbon material, such as a carbon nanotube, into which a boron atom and/or a phosphorus atom is/are introduced while maintaining its characteristic structures and functions and a method for producing the same. The carbon material of the present invention is one in which a boron atom and/or a phosphorus atom is/are introduced into part of carbon atoms composing the carbon material, and can be produced by a method for producing a carbon material including the steps of: bringing a carbon material into contact with a fluorination treatment gas containing a fluorine-containing gas, thereby subjecting a surface of the carbon material to fluorination treatment; and bringing the carbon material after the fluorination treatment into contact with a boronization treatment gas containing a boron-containing gas, thereby subjecting to boronization treatment and/or into contact with a phosphorization treatment gas containing a phosphorus-containing gas, thereby subjecting to phosphorization treatment.

公开(公告)号：US20240060024A1

公开(公告)日：2024-02-22

申请号：US18259250

申请日：2021-12-23

Applicant: SHINSHU UNIVERSITY ,  STELLA CHEMIFA CORPORATION

Inventor： Naoto SAITO ,  Takeshi UEMURA ,  Kazutoshi HISANO ,  Yoshinori SATO ,  Masashi YAMAMOTO ,  Keiichi NII ,  Tetsuo NISHIDA

IPC: C12M1/00 ,  C08J7/12

CPC classification number: C12M23/20 ,  C08J7/123

Abstract: Provided are a cell culture member having excellent cell culture performance and its long-term stability, and a method for modifying the surface thereof. The cell culture member according to the present invention is a cell culture member having at least a holding region that holds an adherent cell and contains a polymer compound, wherein at least a part of the holding region is a surface-modified region in which a functional group containing a nitrogen atom is directly chemically bonded to a part of carbon atoms and/or silicon atoms constituting the polymer compound, and the present invention can provide a cell culture member that improves adhesiveness of the adherent cell to the surface-modified region, suppresses deterioration over time of adhesiveness, and is excellent in cell culture performance and its long-term stability.

公开(公告)号：US20240052299A1

公开(公告)日：2024-02-15

申请号：US18259237

申请日：2021-12-23

Applicant: SHINSHU UNIVERSITY ,  STELLA CHEMIFA CORPORATION

Inventor： Naoto SAITO ,  Takeshi UEMURA ,  Kazutoshi HISANO ,  Yoshinori SATO ,  Masashi YAMAMOTO ,  Keiichi NII ,  Tetsuo NISHIDA

IPC: C12N5/00 ,  C12M1/12 ,  C08J7/12

CPC classification number: C12N5/0068 ,  C12M25/04 ,  C08J7/12 ,  C12N2509/00 ,  C12N2533/30 ,  C12N2537/00 ,  C08J2325/06

Abstract: Provided are a cell culture member having excellent cell culture performance and its long-term stability, and a method for modifying the surface thereof. The cell culture member according to the present invention is a cell culture member having at least a holding region that holds an adherent cell and contains a polymer compound, wherein at least a part of the holding region is a surface-modified region in which a fluorine atom is directly chemically bonded to a part of carbon atoms and/or silicon atoms constituting the polymer compound, and the present invention can provide a cell culture member that improves adhesiveness of the adherent cell to the surface-modified region, suppresses deterioration over time of adhesiveness, and is excellent in cell culture performance and its long-term stability.

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：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.