公开(公告)号：US20210184100A1

公开(公告)日：2021-06-17

申请号：US17116099

申请日：2020-12-09

Applicant: DENSO CORPORATION ,  TOKYO UNIVERSITY OF SCIENCE FOUNDATION

Inventor： Noriyuki MATSUSHITA ,  Yoshihiro KOZAWA ,  Kazuhiko KANOH ,  Yumi TANAKA

IPC: H01L41/18 ,  H01L41/187 ,  H01L41/113 ,  H02N1/08

Abstract: An electret includes a substrate and an electret layer formed above a surface of the substrate. The electret layer is a composite metal compound containing two or more different metal elements, and is obtained by subjecting a thin film mainly composed of an inorganic dielectric material having a bandgap energy of 4 eV or more to a polarization treatment.

公开(公告)号：US20240015854A1

公开(公告)日：2024-01-11

申请号：US18475000

申请日：2023-09-26

Applicant: DENSO CORPORATION

Inventor： Katsuma ISHINO ,  Yoshihiro KOZAWA ,  Kenji NAKAMURA ,  Hidehiko HIRAMATSU

IPC: H05B3/14 ,  H05B3/84

CPC classification number: H05B3/14 ,  H05B3/84 ,  H05B2203/017

Abstract: A transparent heater includes: a substrate that is transparent to a visible light and has one surface; and a conductive layer that is disposed on the one surface, is transparent to the visible light, and contains an aggregate of carbon nanotubes. The conductive layer includes: a patterned portion that includes a linear portion linearly extending in a first direction parallel to the one surface; and a non-patterned portion that is a film-shaped portion connecting to the patterned portion in a second direction parallel to the one surface and orthogonal to the first direction, and has a thickness smaller than that of the patterned portion in a third direction orthogonal to the one surface. The non-patterned portion has an orientation direction of the carbon nanotubes defining less than 45 degrees with respect to the second direction, the orientation direction being measure by an orientation evaluation method.

公开(公告)号：US20240399315A1

公开(公告)日：2024-12-05

申请号：US18775512

申请日：2024-07-17

Applicant: DENSO CORPORATION

Inventor： Yoshihiro KOZAWA

IPC: B01D69/02 ,  B01D69/06

Abstract: A collecting filter has a filter membrane with a porous structure to filter a nanocarbon material from a dispersion medium containing the nanocarbon material, and a dense film having an opening through which the dispersion medium passes. The opening has a reverse tapered shape in which a first width at an inlet of the dispersion medium opposite to the filter membrane is smaller than a second width at a bottom side adjacent to the filter membrane.