公开(公告)号：US20240068897A1

公开(公告)日：2024-02-29

申请号：US18454170

申请日：2023-08-23

Applicant: TDK CORPORATION

Inventor： Masanori KOBAYASHI ,  Ken UNNO ,  Tetsuya SASAHARA ,  Tetsuo HATA

IPC: G01L19/06 ,  G01L9/04 ,  G01L19/00

CPC classification number: G01L19/0627 ,  G01L9/04 ,  G01L19/0069

Abstract: There is provided a sensor member capable of suitably preventing a problem such as the intrusion of moisture or the like through an interface between an electrode and a protective film. A sensor member includes: a protected portion provided on one surface of a metal base and including a detection portion; a protective film including a first protective film portion having a first thickness and a second protective film portion having a second thickness thicker than the first thickness and formed at an opening peripheral edge of an opening leading to the protected portion, and covering at least a part of the protected portion from above; and an electrode portion including a first electrode portion disposed in the opening and connected to the protected portion, and a second electrode portion connected to the first electrode portion at an outer peripheral edge of the first electrode portion and formed on the second protective film portion.

公开(公告)号：US20240117474A1

公开(公告)日：2024-04-11

申请号：US18479526

申请日：2023-10-02

Applicant: TDK CORPORATION

Inventor： Kohei NAWAOKA ,  Ken UNNO ,  Tetsuya SASAHARA ,  Masanori KOBAYASHI ,  Tetsuo HATA

IPC: C22C27/06 ,  G01B7/16

CPC classification number: C22C27/06 ,  G01B7/18

Abstract: A strain resistance film containing a composition represented by Cr100-x-y-zAlxNyOz, satisfying 5≤x≤50, 0.1≤y≤20, 0.1≤z≤17, and y+z≤25.

公开(公告)号：US20240302226A1

公开(公告)日：2024-09-12

申请号：US18599247

申请日：2024-03-08

Applicant: TDK Corporation

Inventor： Tetsuya SASAHARA ,  Ken UNNO ,  Masanori KOBAYASHI ,  Tetsuo HATA ,  Lucie OUEDRAOGO

IPC: G01L1/22 ,  G01L1/16

CPC classification number: G01L1/2262 ,  G01L1/16 ,  G01L1/2281

Abstract: A strain measuring system includes a piezoelectric element and a resistor provided on an object. The system also includes a resistance detection circuit to detect a change in resistance of the resistor, and a piezoelectric effect detection circuit to detect a piezoelectric effect of the piezoelectric element. A strain calculation circuit detects a strain changing time while the strain of the object is changing using a detection result from the piezoelectric effect detection circuit, calculates a change in resistance of the resistor during the strain changing time, and calculates a degree of strain of the object using a calculation result of the change in resistance.

公开(公告)号：US20240068891A1

公开(公告)日：2024-02-29

申请号：US18454194

申请日：2023-08-23

Applicant: TDK CORPORATION

Inventor： Masanori KOBAYASHI ,  Ken UNNO ,  Tetsuya SASAHARA ,  Tetsuo HATA ,  Lucie OUEDRAOGO

IPC: G01L1/22

CPC classification number: G01L1/2287

Abstract: There is provided a sensor member with a small risk of damage. A sensor member includes: a membrane; a protective film covering a part of the membrane; and an electrode portion connected to the membrane. The electrode portion 5 covers at least a part of the protective film.

公开(公告)号：US20250110000A1

公开(公告)日：2025-04-03

申请号：US18895611

申请日：2024-09-25

Applicant: TDK Corporation

Inventor： Masanori KOBAYASHI ,  Ken UNNO ,  Tetsuya SASAHARA ,  Tetsuo HATA ,  Lucie OUEDRAOGO

IPC: G01L9/00

Abstract: A sensor including: a base material having a surface on which streaks are formed along a first direction in a plan view; and a conductive film pattern formed on or above the surface and configured to connect mutually different positions in an in-plane direction of the surface in a shape in which a length of a conductive path is longer than a length of a straight line connecting the different positions, in which in a plan view, the shape of the conductive film pattern comprises a shape in which each of straight lines parallel to the first direction passes across a conductive path center line of the conductive film pattern zero times or once but does not pass across the conductive path center line twice or more.