公开(公告)号：US20200066481A1

公开(公告)日：2020-02-27

申请号：US16489299

申请日：2018-05-31

Applicant: NIPPON STEEL CORPORATION

Inventor： Takashige MORI ,  Takafumi AMINO ,  Naoki MARUYAMA ,  Akira TANIYAMA ,  Shunsuke TANIGUCHI ,  Chie YOKOYAMA

IPC: H01J37/20 ,  H01J37/28

Abstract: There is provided a tilting parameters calculating device for use in a charged particle beam device for making a charged particle beam irradiated to a surface of a sample mounted on a sample stage, the tilting parameters calculating device being configured to calculate tilting parameters, the tilting parameters being input parameters to control a tilting direction and a tilting value of the sample and/or the charged particle beam, the input parameters being necessary to change an incident direction of the charged particle beam with respect to the sample, the tilting parameters calculating device including a tilting parameters calculating unit for calculating the tilting parameters based on information that indicates the incident direction of the charged particle beam with respect to a crystal lying at a selected position on the surface in a state where the incident direction of the charged particle beam with respect to the sample is in a predetermined incident direction, the information being designated on a crystal orientation figure, which is a diagram illustrating the incident direction of the charged particle beam with respect to a crystal coordinate system of the crystal.

公开(公告)号：US20220085362A1

公开(公告)日：2022-03-17

申请号：US17422830

申请日：2020-01-17

Applicant: NIPPON STEEL CORPORATION

Inventor： Sukeyoshi YAMAMOTO ,  Tatsuo NAGATA ,  Shunsuke TANIGUCHI ,  Takafumi AMINO ,  Akira TANIYAMA

IPC: H01M4/38 ,  C22C9/00 ,  H01M10/0525

Abstract: Provided is a negative electrode active material which is excellent in capacity, capacity retention ratio, and a coulombic efficiency when charging/discharging is repeated. The chemical composition of the alloy particles of the negative electrode active material of the present disclosure includes 0.50 to 3.00 mass % of oxygen, and alloy elements containing Sn: 13.0 to 40.0 at % and Si: 6.0 to 40.0 at %, with the balance being Cu and impurities. The structure of the alloy particles includes: one or more types selected from the group consisting of a phase having a D03 structure, and a δ phase; one or more types selected from the group consisting of an ε phase and an η′ phase; and a SiOx phase (x=0.50 to 1.70). The SiOx phase (x=0.50 to 1.70) has a volume fraction of 5.0 to 60.0% and the η′ phase has a volume fraction of 0 to 60.0%.