公开(公告)号：US12277254B2

公开(公告)日：2025-04-15

申请号：US18003275

申请日：2021-06-23

Applicant: TOSHIBA INFORMATION SYSTEMS (JAPAN) CORPORATION ,  Waseda University

Inventor： Shinichi Nagata ,  Koji Takahashi ,  Nozomu Togawa ,  Masaru Oya

IPC: G06F21/00 ,  G06F21/71 ,  G06F30/327

Abstract: A hardware trojan detection method is provided including an input and output updating step of updating input and output values of all logic cells by performing computations according to logical expressions of all logic cells included in a netlist to be verified and a detection step of performing hardware trojan detection based on a comparison result of the updated input and output values and a threshold.

公开(公告)号：US12237555B2

公开(公告)日：2025-02-25

申请号：US18169211

申请日：2023-02-15

Applicant: Waseda University

Inventor： Seiji Nishi ,  Takuro Sato ,  Kazuhiko Tamesue ,  Tetsuya Kawanishi

IPC: H01P3/02 ,  H01P1/02

Abstract: The first conductor plate has a groove portion that has a rectangular cross section and is formed in parallel with a first main surface such that the longitudinal direction becomes a first direction, and a first vertical tube portion formed in a direction away from the second conductor plate in a second direction orthogonal to the first direction and the first main surface, with a branch position in the groove as a starting point. The second conductor plate includes a reflection portion that is inserted into the groove portion in a manner protruding from a second main surface, which is a flat surface of the second conductor plate in contact with the first main surface, and has a reflection surface that reflects the radio wave, propagated along the groove portion, toward the first vertical tube portion.

公开(公告)号：US20240365668A1

公开(公告)日：2024-10-31

申请号：US18566597

申请日：2022-06-01

Applicant: WASEDA UNIVERSITY

Inventor： Eiji IWASE ,  Shingo TERASHIMA

IPC: H10N10/82 ,  H10N10/01 ,  H10N10/13

CPC classification number: H10N10/82 ,  H10N10/01 ,  H10N10/13

Abstract: A thermoelectric power generation device includes a beam portion, a first leg portion, and a second leg portion formed integrally with a wiring substrate. The beam portion, the first leg portion, and the second leg portion are curved and deformed, and the first contact portion and the second contact portion integrally formed at the distal ends of the first leg portion and the second leg portion, respectively, are mounted in close contact with a heat source. The first leg portion and the second leg portion rise obliquely upward from the heat source, and the beam portion connected to the base ends of the first leg portion and the second leg portion is disposed above the heat source. Thermoelectric elements are mounted to the first leg portion and the second leg portion.

公开(公告)号：US20240254448A1

公开(公告)日：2024-08-01

申请号：US18565425

申请日：2022-05-27

Applicant: WASEDA UNIVERSITY

Inventor： Naoya TAKEDA ,  Yuji TSUCHIDO ,  Mai ONUKI

IPC: C12N5/071 ,  C12M1/12 ,  C12M3/00

CPC classification number: C12N5/0679 ,  C12M21/08 ,  C12M25/02 ,  C12N2503/04 ,  C12N2513/00 ,  C12N2533/54 ,  C12N2533/78

Abstract: The purpose of the present invention is to provide: a cell culture substrate, which is suitable for the fabrication of an in vitro biological tissue model of a biological tissue having an air-liquid interface and which enables temporal and real-time observation under an optical microscope, and a method for manufacturing the same; and a biological tissue model fabricated by using the cell culture substrate and a method for fabricating the same. A cellulose derivative membrane that is light-permeable under a wet condition by an aqueous medium is made porous to thereby impart water absorption properties suitable for a culture substrate thereto. This porous cellulose derivative membrane is combined with polymer microfibers to give a transparent dual-layer substrate as a cell culture substrate. Further, cells are cultured at an air-liquid interface using the transparent dual-layer substrate to give an in vitro biological tissue model having characteristics similar to a biological tissue.

公开(公告)号：US20240104268A1

公开(公告)日：2024-03-28

申请号：US18256552

申请日：2021-11-16

Applicant: WASEDA UNIVERSITY

Inventor： Nozomu TOGAWA ,  Masashi TAWADA ,  Daisuke OKU ,  Shu TANAKA

IPC: G06F30/23

CPC classification number: G06F30/23 ,  G06F2119/06

Abstract: A calculation method reduces a bit-width of an Ising model, the Ising model being expressed in terms of a plurality of spins, interaction coefficients between the plurality of spins, and external magnetic field coefficients acting respectively on the plurality of spins. The calculation method includes: adding an auxiliary spin to the Ising model; and setting a new interaction coefficient between the auxiliary spin and at least one of the plurality of spins to obtain a new Ising model, thereby reducing a bit-width of at least one of the interaction coefficients between the plurality of spins and the external magnetic field coefficients acting respectively on the plurality of spins.

公开(公告)号：US20230136477A1

公开(公告)日：2023-05-04

申请号：US17910325

申请日：2021-02-17

Applicant: WASEDA UNIVERSITY

Inventor： Hiroshi Kawarada ,  Wenxi Fei ,  Te Bi ,  Masayuki Iwataki

IPC: H01L29/66 ,  H01L29/16 ,  H01L21/02 ,  H01L21/04

Abstract: Provided are a diamond field effect transistor using a silicon oxide film as a gate insulating film including a silicon-terminated layer containing C—Si bonds in order to reduce an interface state density, and a method for producing the same. A FET 100A includes a silicon oxide film 3A formed on a surface of a non-doped diamond layer 2A, a non-doped diamond layer 4A formed on a surface of the non-doped diamond layer 2A using the silicon oxide film 3A as a mask, a silicon-terminated layer 5A formed at an interface between the non-doped diamond layer 2A and the silicon oxide film 3A and at an interface between the non-doped diamond layer 4A and the silicon oxide film 3A, and a gate electrode 12A formed on the silicon oxide film 3A. The FET 100A operates using the silicon oxide film 3A and an insulating film 10A formed on the silicon oxide film 3A as a gate insulating film 11A and using the non-doped diamond layer 4A as each of a source region and a drain region.

公开(公告)号：US20220140351A1

公开(公告)日：2022-05-05

申请号：US17430569

申请日：2020-02-25

Applicant: WASEDA UNIVERSITY ,  ZEON CORPORATION

Inventor： Suguru Noda ,  Keisuke Hori ,  Tomotaro Mae ,  Yuta Hashizume

IPC: H01M4/80 ,  H01M4/66

Abstract: A secondary battery negative electrode according to the invention includes: a three-dimensional current collector formed of a self-supporting sponge-like structure of carbon nanotubes; a metal active material contained inside the three-dimensional current collector; and a plurality of seed particles contained inside the three-dimensional current collector and made of a material different from the metal active material, in which the secondary battery negative electrode does not include a foil of the metal active material.

公开(公告)号：US20220127719A1

公开(公告)日：2022-04-28

申请号：US17507417

申请日：2021-10-21

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: C23C16/27 ,  C23C16/02

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：US11200673B2

公开(公告)日：2021-12-14

申请号：US16616250

申请日：2018-05-22

Applicant: WASEDA UNIVERSITY ,  SHINSHU UNIVERSITY

Inventor： Takayuki Sota ,  Atsushi Nakamura ,  Hiroshi Koga

IPC: G06T7/00 ,  G06T7/90 ,  A61B5/00 ,  A61B5/103

Abstract: An analysis method and a diagnostic device, enabling one to determine whether a longitudinal melanonychia is caused by a malignant melanoma or a benign nevus by correcting color variation in a dermoscopic image through standardization of color balance without depending on an imaging device or an operator; and a computer program for allowing a computer to function as the diagnostic device. Proposed is a structure including: an image reading step of reading a color image of a longitudinal melanonychia or an affected skin site of a subject as a digital color image; an image processing step involving an image size conversion step of converting the whole size of the digital color image into a preset size through pixel size conversion, and a region of interest (ROI)-extraction step of extracting an ROI required for the diagnosis from the digital color image; a chromatic adaptation transformation step of controlling the color balance of the digital color image data through chromatic adaptation transformation; and a discrimination index (DI) calculation step of determining a DI value using the image after the chromatic adaptation transformation.

公开(公告)号：US20210305778A1

公开(公告)日：2021-09-30

申请号：US17210098

申请日：2021-03-23

Applicant: DENSO CORPORATION ,  TOHOKU UNIVERSITY ,  WASEDA UNIVERSITY

Inventor： MASASHIGE SATO ,  TAKU SUZUKI ,  HIROSHI YASAKA ,  NOBUHIDE YOKOTA ,  TOMOHIRO KITA

IPC: H01S5/0687 ,  H01S5/042 ,  H01S5/062 ,  H01S5/00

Abstract: A laser apparatus includes: a light source configured to generate laser light; and an optical negative feedback unit configured to narrow a spectral line of the laser light using optical negative feedback. A modulation signal is input to the light source to modulate a frequency of the laser light. A modulation amount in the frequency of the laser light is detected. A modulation sensitivity is calculated from (i) the modulation amount and (ii) an intensity of the modulation signal.