公开(公告)号：US20250146122A1

公开(公告)日：2025-05-08

申请号：US19015943

申请日：2025-01-10

Applicant: Atsuhito Sawabe ,  Yutaka Kimura ,  National University Corporation Nagaoka University of Technology ,  WASEDA UNIVERSITY ,  DISCO Corporation

Inventor： Hideo Aida ,  Atsuhito Sawabe ,  Yutaka Kimura ,  Jun Mizuno ,  Ryuji Oshima

IPC: C23C14/14 ,  C30B23/02 ,  C30B25/18 ,  C30B29/02 ,  C30B33/00

Abstract: Provided are a structure for producing a high-quality single crystal diamond, and a method for manufacturing the structure for producing diamond. A structure for producing a diamond is composed of a base substrate and an Ir thin film formed on the base substrate. The thermal expansion coefficient of the base substrate is 5 times or less of the thermal expansion coefficient of diamond and the melting point of the base substrate is 700° C. or higher. The peak angle in the X-ray diffraction pattern of the Ir thin film is different from the peak angle in the X-ray diffraction pattern of the base substrate.

公开(公告)号：US12269739B2

公开(公告)日：2025-04-08

申请号：US18273283

申请日：2022-02-03

Applicant: NIPPON ELECTRIC GLASS CO., LTD. ,  NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY

Inventor： Tsuyoshi Honma ,  Masafumi Hiratsuka ,  Hideo Yamauchi ,  Ayumu Tanaka ,  Kei Tsunoda ,  Yoshinori Yamazaki

IPC: C01B25/45 ,  C01D15/02 ,  H01M4/58 ,  H01M10/054

Abstract: Provided is a method for producing a positive electrode active material for an alkali ion secondary battery, the positive electrode active material containing a large amount of a transition metal and enabling operation of the battery. In the method for producing a positive electrode active material for an alkali ion secondary battery, in which the positive electrode active material contains 34 mol % or more of CrO+FeO+MnO+CoO+NiO, the method includes: a step of preparing a positive electrode active material precursor containing crystals; and a step of irradiating the positive electrode active material precursor with light to melt the crystals and amorphize at least a portion of the positive electrode active material precursor.

公开(公告)号：US12227828B2

公开(公告)日：2025-02-18

申请号：US17507417

申请日：2021-10-21

Applicant: National University Corporation Nagaoka University of Technology ,  Atsuhito Sawabe ,  Yutaka Kimura ,  WASEDA UNIVERSITY ,  DISCO Corporation

Inventor： Hideo Aida ,  Atsuhito Sawabe ,  Yutaka Kimura ,  Jun Mizuno ,  Ryuji Oshima

IPC: C23C16/02 ,  C23C14/14 ,  C23C16/27 ,  C30B23/02 ,  C30B25/18 ,  C30B29/02 ,  C30B33/00

Abstract: Provided are a structure for producing a high-quality single crystal diamond, and a method for manufacturing the structure for producing diamond. A structure for producing a diamond is composed of a base substrate and an Ir thin film formed on the base substrate. The thermal expansion coefficient of the base substrate is 5 times or less of the thermal expansion coefficient of diamond and the melting point of the base substrate is 700° C. or higher. The peak angle in the X-ray diffraction pattern of the Ir thin film is different from the peak angle in the X-ray diffraction pattern of the base substrate.

公开(公告)号：US20240313211A1

公开(公告)日：2024-09-19

申请号：US18273284

申请日：2022-02-14

Applicant: NIPPON ELECTRIC GLASS CO., LTD. ,  NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY

Inventor： Tsuyoshi HONMA ,  Aoi ODA ,  Hideo YAMAUCHI ,  Ayumu TANAKA ,  Kei TSUNODA ,  Yoshinori YAMAZAKI

IPC: H01M4/52 ,  C03C4/14 ,  C03C14/00 ,  H01G11/04 ,  H01G11/46 ,  H01M10/054

CPC classification number: H01M4/52 ,  C03C4/14 ,  C03C14/006 ,  H01M10/054 ,  C03C2204/00 ,  C03C2214/16 ,  H01G11/04 ,  H01G11/46

Abstract: A negative electrode active material for a sodium ion secondary battery is provided, in which the negative electrode active material has a low initial irreversible capacity. The negative electrode active material for a sodium ion secondary battery includes a crystallized glass formed by precipitation of metallic Bi in a matrix containing at least one compound selected from Fe2O3 and CuO, and SiO2.

公开(公告)号：US20240272107A1

公开(公告)日：2024-08-15

申请号：US18567069

申请日：2022-06-09

Applicant: NAGAOKA UNIVERSITY OF TECHNOLOGY ,  KOA CORPORATION

Inventor： Tomoichiro OKAMOTO ,  Kenichi IGUCHI ,  Yukiko OTA ,  Ryosuke KOMATSU ,  Tetsuro TANAKA ,  Katsuhide NISHIZAWA

IPC: G01N27/12 ,  G01N33/00

CPC classification number: G01N27/125 ,  G01N33/0036

Abstract: An oxygen sensor element that can achieve electric power saving without losing sensor characteristics has a structure in which an outer surface of a ceramic sintered body as a sensing layer made of a composition LnBa2Cu3O7−δ (Ln denotes rare earth element) is covered with heat insulating layers. A heat insulating material having a composition Ln2BaCuO5 is used for the heat insulating layers, and that composition Ln2BaCuO5 is added with 20 mol % of LnBa2Cu3O7−δ. This allows a sintering behavior of the heat insulating layers to come close to a sintering behavior of the sensing layer, and can thus prevent the occurrence of separation of the layers and cracks. The oxygen sensor element has a sandwich structure where the sensing layer is sandwiched between the heat insulating layers, thereby reducing the amount of heat dissipated from the sensing layer, and making it possible to achieve electric power saving.

公开(公告)号：US20240217061A1

公开(公告)日：2024-07-04

申请号：US18044862

申请日：2021-09-15

Applicant: National University Corporation Nagaoka University of Technology ,  Sanoh Industrial Co., Ltd.

Inventor： Hideo Aida ,  Natsuko Omiya

IPC: B24B49/12 ,  G01N23/2254

CPC classification number: B24B49/12 ,  G01N23/2254 ,  G01N2223/611

Abstract: Provided are a polishing state analysis prediction program, a storage, a cathodeluminescence device, and a polishing state analysis prediction method. The polishing state analysis prediction program to predict a future polishing state of a polishing-target substrate to be polished based on a cathodeluminescence image of the polishing-target substrate, the image being obtained by a cathodeluminescence method, the program, when executed by a computer, causing the computer to perform: calculating average light emission intensity data or average luminance data from the cathodeluminescence image of each predetermined time after start of polishing the substrate; and plotting the average light emission intensity data or the average luminance data, and deriving a formula representing a fitting curve resulted from the plotting by using a predetermined function.

公开(公告)号：US20230093066A1

公开(公告)日：2023-03-23

申请号：US17789278

申请日：2020-12-25

Applicant: NAGAOKA UNIVERSITY OF TECHNOLOGY ,  NISSAN CHEMICAL CORPORATION ,  UNIVERSITY OF HYOGO

Inventor： Tomoyuki SASAKI ,  Hiroshi ONO ,  Nobuhiro KAWATSUKI ,  Kohei GOTO ,  Kimiaki TSUTSUI

IPC: G02F1/1337 ,  G02F1/01

Abstract: The present invention provides a polarization-independent terahertz wave control element, and provides a method for manufacturing a polarization-independent terahertz wave control element. The present invention provides a terahertz wave control element comprising: (A) a first flat plate having (A1) a first substrate, (A2) a first electrode formed on the first substrate, and (A3) a first liquid crystal alignment film formed on the first electrode; (B) a second flat plate having (B1) a second substrate, (B2) a second electrode formed on the second substrate, and (B3) a second liquid crystal alignment film formed on the second electrode; and (C) a liquid crystal present in a space formed by disposing (A) the first flat plate and (B) the second flat plate parallel to each other with a predetermined distance therebetween so that the first and second liquid crystal alignment films face each other, wherein (D1) the terahertz wave control element has a first portion in which the liquid crystal is aligned in a first direction parallel to (A) the first flat plate and (B) the second flat plate, and a second portion in which the liquid crystal is aligned in a second direction orthogonal to the first direction and parallel to (A) the first flat plate and (B) the second flat plate when no voltage is applied, (D2) the first portion has a first width, the second portion has a second width, the first and second portions are disposed adjacent to each other and alternately disposed in a predetermined cycle, (D3) when voltage is applied, the liquid crystal in each of the first portion and the second portion is aligned in a direction orthogonal to (A) the first substrate and (B) the second substrate, and (E) a phase change in which a terahertz wave transmitted through the terahertz wave control element is independent of the state of polarization.

公开(公告)号：US11177757B2

公开(公告)日：2021-11-16

申请号：US16754755

申请日：2017-12-07

Applicant: Mitsubishi Electric Corporation ,  National University Corporation Nagaoka University of Technology

Inventor： Sota Sano ,  Akira Satake ,  Kiyoshi Ohishi ,  Yuki Yokokura ,  Tenjiro Hiwatari

IPC: H02P27/06 ,  H02P21/22 ,  H02M7/5387

Abstract: The present invention includes a control amount calculation unit which calculates two or more control amounts each indicating a driving condition of a rotary electric machine on the basis of output current from and a switching state in a power converter; a limitation range-provided command value generation unit which generates limitation range-provided command values relative to command values for the control amounts; and a switching state determination unit which determines a switching state such that each control amount falls within the limitation range of the corresponding limitation range-provided command value. For at least one of the limitation range-provided command values, the limitation range thereof is temporally changed on the basis of the driving condition of the rotary electric machine.

公开(公告)号：US20210203261A1

公开(公告)日：2021-07-01

申请号：US16754755

申请日：2017-12-07

Applicant: Mitsubishi Electric Corporation ,  National University Corporation Nagaoka University of Technology

Inventor： Sota SANO ,  Akira SATAKE ,  Kiyoshi OHISHI ,  Yuki YOKOKURA ,  Tenjiro HIWATARI

IPC: H02P27/06 ,  H02P21/22 ,  H02M7/5387

Abstract: The present invention includes a control amount calculation unit which calculates two or more control amounts each indicating a driving condition of a rotary electric machine on the basis of output current from and a switching state in a power converter; a limitation range-provided command value generation unit which generates limitation range-provided command values relative to command values for the control amounts; and a switching state determination unit which determines a switching state such that each control amount falls within the limitation range of the corresponding limitation range-provided command value. For at least one of the limitation range-provided command values, the limitation range thereof is temporally changed on the basis of the driving condition of the rotary electric machine.

公开(公告)号：US20200295674A1

公开(公告)日：2020-09-17

申请号：US16650059

申请日：2018-09-20

Applicant: Mitsubishi Electric Corporation ,  National University Corporation Nagaoka University of Technology

Inventor： Yu KAWAI ,  Tatsuya OKUDA ,  Jun-ichi ITOH ,  Hoai Nam LE

IPC: H02M7/5387 ,  H02M1/08

Abstract: A power conversion device which reduces switching losses and stabilizes the output power. A switching-mode changer generates a reference signal for switching a mode of operation of the full-bridge circuit to a first switching mode or a second switching mode. In the first switching mode, an upper arm and a lower arm are switched synchronously, and a lower arm and an upper arm are non-conducting. In the second switching mode, the lower arm and the upper arm are switched synchronously, and the upper arm and the lower arm are non-conducting. The switching-mode changer adjusts the phase of the reference signal so that the reactive power is reduced.