公开(公告)号：US20210273153A1

公开(公告)日：2021-09-02

申请号：US17323523

申请日：2021-05-18

Applicant: Alps Alpine Co., Ltd.

Inventor： Heishiro FUDO ,  Eiji SHINOHARA ,  Akihito YAMAMOTO ,  Shinya ICHISE ,  Yuki ONO ,  Hisashi KOMATSU ,  Hiroyuki TOBARI

IPC: H01L41/113 ,  H01L41/047

Abstract: A composite piezoelectric element includes a first electrode layer, a piezoelectric substance layer disposed on the first electrode layer, and a second electrode layer disposed on the piezoelectric substance layer, and, in plan view, a measuring unit including the first electrode layer, the piezoelectric substance layer, and the second electrode layer and a buffer portion in which the piezoelectric substance layer is not provided.

公开(公告)号：US20230160780A1

公开(公告)日：2023-05-25

申请号：US17995377

申请日：2021-03-18

Applicant: The Yokohama Rubber Co., LTD. ,  ALPS ALPINE CO., LTD.

Inventor： Masahiro NARUSE ,  Jun MATSUDA ,  Heishiro FUDO ,  Eiji SHINOHARA ,  Shinya ICHISE ,  Hiroyuki TOBARI

IPC: G01M17/02 ,  G01L17/00 ,  G01B7/16 ,  B60C23/06

CPC classification number: G01M17/02 ,  G01L17/00 ,  G01B7/16 ,  B60C23/064 ,  B60C23/061

Abstract: Provided is a tire information detecting device capable of determining an attachment state of a sensor module based on a measurement value supplied from the sensor module installed in a pneumatic tire and accurately detecting tire information. A tire information detecting device (10) configured to detect tire information including at least one of wear of a tire, deformation of the tire, a road surface state, a ground contact state of the tire, presence of failure of the tire, a travel history of the tire, or a load state of the tire includes at least one sensor module (20) disposed on a tire inner surface and a determination unit (15) configured to determine an attachment state of the sensor module (20) based on a measurement value supplied from the sensor module (20).

公开(公告)号：US20220080779A1

公开(公告)日：2022-03-17

申请号：US17535207

申请日：2021-11-24

Applicant: Alps Alpine Co., Ltd.

Inventor： Heishiro FUDO ,  Eiji SHINOHARA ,  Shinya ICHISE ,  Hiroyuki TOBARI ,  Akihito YAMAMOTO ,  Yuki ONO

IPC: B60C11/24 ,  B60C23/06

Abstract: A tire deterioration inferring (estimating) method uses a tire deterioration inferring device placed on the inner surface of a tire. The method has: a deformation velocity measurement step of measuring a tire deformation velocity, which is the deformation velocity of the tire while the tire is rotating, and obtaining time-series changes in the tire deformation velocity; a calculation step of calculating peak values of the tire deformation velocity from the time-series changes in the tire deformation velocity; and an inference step of inferring the degree of the deterioration of the tire by using a first peak value, which is a peak value of the tire deformation velocity before and at the stepping of the tire or at and after the kicking of the tire, the first peak value being in the time-series changes in the tire deformation velocity.

公开(公告)号：US20230415524A1

公开(公告)日：2023-12-28

申请号：US18463814

申请日：2023-09-08

Applicant: ALPS ALPINE CO., LTD.

Inventor： Heishiro FUDO ,  Eiji SHINOHARA ,  Shinya ICHISE ,  Hiroyuki TOBARI ,  Yuki ONO ,  Masanaga TAKAHASHI

IPC: B60C23/04

CPC classification number: B60C23/0416 ,  B60C23/0488

Abstract: A tire position identification device is provided as a device that can identify the positions of wheels to which tires are attached by using information about other than air pressure. The tire position identification device has: deformation detection units, each of which can detect deformation of the relevant tire; a turn detection unit that can detect whether a vehicle having the tires and wheels has made a turn and can also detect the direction of the turn; a speed detection unit that can detect the speed of the vehicle, and a control unit that infers the positions of the wheels to which the tires are attached according to the deformation of the tires, the direction of the turn of the vehicle, and its speed.

公开(公告)号：US20230158837A1

公开(公告)日：2023-05-25

申请号：US18159350

申请日：2023-01-25

Applicant: Alps Alpine Co., Ltd.

Inventor： Yuki IMAI ,  Tokuo NAKAMURA ,  Takafumi NOGUCHI ,  Hiroyuki TOBARI ,  Shinya ICHISE ,  Ryosuke SUZUKI ,  Rie KUROSAWA ,  Heishiro FUDO ,  Eiji SHINOHARA ,  Manabu TAMURA ,  Nobuhiko SUEMATSU

IPC: B60C11/24

CPC classification number: B60C11/243

Abstract: A tire wear measuring device that detects wear of a tire based on a magnetic field from a magnetic object embedded in the tire includes magnetic sensors and a battery. The battery is capable of transmitting the magnetic field from the magnetic object, and has an outer edge from which the magnetic field from the magnetic object is emitted as an emission magnetic field. Each of the magnetic sensors is disposed in a position where the emission magnetic field is detectable by the sensor.