公开(公告)号：US20220256656A1

公开(公告)日：2022-08-11

申请号：US17728641

申请日：2022-04-25

Applicant: DENSO CORPORATION

Inventor： Koutarou FUKUDA ,  Kouji OOTA ,  Syuzou ODA ,  Takumi OKAMOTO ,  Taro OGURA

IPC: H05B3/84 ,  B60J1/00

Abstract: A film heater includes a transparent conductive film and first and second electrodes. The transparent conductive film includes a heat generating portion that generates heat when energized by the first and second electrodes. An outer edge of the heat generating portion has a short side, a long side, and first and second oblique sides. The first and second electrodes include a plurality of first and second connection portions corresponding to a plurality of first and second ports, respectively. A plurality of first and second current suppression portions is disposed to suppress flow of the current between the inside and outside of the heat generating portion through a region between the plurality of first and second ports, respectively. For each of some or all of the plurality of first ports, the current flows through the heat generating portion between the first port and at least two second ports.

公开(公告)号：US20250056682A1

公开(公告)日：2025-02-13

申请号：US18929916

申请日：2024-10-29

Applicant: DENSO CORPORATION

Inventor： Taro OGURA ,  Fuminobu MIKAMI ,  Takahito NAKAMURA

IPC: H05B3/84 ,  F21S45/60 ,  H05B1/02

Abstract: A film heater is to be attached to an object to be heated. The film heater includes a conductive film that generates heat when supplied with electricity, and a pair of electrode sections connected to the conductive film. A structure including the conductive film and the pair of electrode sections includes an attached portion that is to be attached to the object to be heated, and a separated portion that is connected to the attached portion and is to be spaced part from the object to be heated. The separated portion includes a disconnection portion that melts or breaks in response to an occurrence of overcurrent.

公开(公告)号：US20230016506A1

公开(公告)日：2023-01-19

申请号：US17947338

申请日：2022-09-19

Applicant: DENSO CORPORATION

Inventor： Takahito NAKAMURA ,  Taro OGURA

IPC: H05B3/86 ,  B60R13/00 ,  H05B3/20 ,  G01S7/03

Abstract: A film heater has a transparent conductive portion including: at least one non-conductive portion that has electrical insulation properties and extends in a direction intersecting a vibration direction of an electric field included in a radio wave transmitted from a radio wave transmitter-receiver; and a heat generator that generates heat by being energized and that transmits light. The film heater has: a first electrode connected to the heat generator; and a second electrode connected to the heat generator. The heat generator includes at least one conductive portion that is adjacent to the non-conductive portion and generates heat by a current flowing along a direction in which the non-conductive portion extends when the heat generator is energized by the first electrode and the second electrode.

公开(公告)号：US20240206018A1

公开(公告)日：2024-06-20

申请号：US18589716

申请日：2024-02-28

Applicant: DENSO CORPORATION

Inventor： Taro OGURA

IPC: H05B3/03 ,  H05B3/84

CPC classification number: H05B3/03 ,  H05B3/84 ,  H05B2203/003 ,  H05B2203/013

Abstract: A film heater includes a transparent conductive film, a first electrode, and a second electrode. The transparent conductive film includes a first heat generating portion, and a second heat generating portion. The first electrode includes a first connection portion, and a second connection portion. The first connection portion is connected to the first heat generating portion. The second connection portion is connected to the second heat generating portion and the first connection portion. The second electrode faces the first connection portion and is connected to the first heat generating portion and the second heat generating portion. Further, a length of a path of an electric current flowing through the second heat generating portion is shorter than a length of a path of an electric current flowing through the first heat generating portion. Also, an electrical resistance of the second connection portion is higher than that of the first connection portion.

公开(公告)号：US20210235551A1

公开(公告)日：2021-07-29

申请号：US17229327

申请日：2021-04-13

Applicant: DENSO CORPORATION

Inventor： Masashi WATANABE ,  Kotaro FUKUDA ,  Takumi OKAMOTO ,  Taro OGURA

IPC: H05B3/84 ,  H04N5/225 ,  H05B3/20 ,  H05B3/03

Abstract: A heater device includes a light transmissive film heater configured to apply to an optical window that is arranged adjacent to a sensor unit for detecting light and includes a detection surface having a light transmitting property, and including a heating portion heating the optical window, and a heat generating portion configured to generate heat in a predetermined region. The light transmissive film heater includes a first electrode arranged radially outside about a center line of the detection surface in the heating portion, a second electrode arranged in the heating portion so as to interpose the detection surface from both sides together with the first electrode, and a first heat generation region that generates heat according to a potential difference between the first electrode and the second electrode generated by energization from the first electrode to the second electrode via the heating portion.