# US 2025/0164936 A1 · Electronic device and electronic timepiece

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- Number: US 2025/0164936 A1
- Document ID: US20250164936A1
- Status: Published application
- Kind: A1
- Application number: 18/954,788
- Filed: 2024-11-21
- Published: 2025-05-22
- Earliest claimed: 2023-11-21
- Assignees: Casio Computer Co., Ltd.
- Applicants: Casio Computer Co., Ltd.
- Inventors: Tomoyasu KUROKAWA; Takayuki SATOU
- Web page: https://patentgrep.com/patent/US20250164936A1

## CPC

- G04C 3/001: {Electromechanical switches for setting or display}
- G04C 3/008: {Mounting, assembling of components}
- G04G 17/06: Electric connectors, e.g. conductive elastomers
- G04C: ELECTROMECHANICAL CLOCKS OR WATCHES
- G04G: ELECTRONIC TIME-PIECES

## Abstract

Disclosed is an electronic device, including: a first metal component and a second metal component that are externally mounted to a case; a first terminal plate that is electrically connected to the first metal component and the second metal component on an outside of the case; and a GND functional section that is provided inside the case and is electrically connected to the first terminal plate.

## Claims

### Claim 1

An electronic device, comprising:
a first metal component and a second metal component that are externally mounted to a case;
a first terminal plate that is electrically connected to the first metal component and the second metal component on an outside of the case; and
a GND functional section that is provided inside the case and is electrically connected to the first terminal plate.

### Claim 2 (depends on 1)

The electronic device according to claim 1, further comprising:
a third metal component and a fourth metal component that are externally mounted to the case; and
a second terminal plate that is electrically connected to the third metal component and the fourth metal component on an outside of the case,
wherein the GND functional section is electrically connected to the second terminal plate.

### Claim 3 (depends on 2)

The electronic device according to claim 2, wherein each of the first metal component, the second metal component, the third metal component, and the fourth metal component includes any of a metal bezel, a metal button, and a metal button pipe.

### Claim 4 (depends on 3)

The electronic device according to claim 3, wherein
the metal button is provided with a button head and a shaft, one end side of the shaft being connected to the button head and the other end side of the shaft being inserted into a coil spring, and
the metal button is electrically connected to the terminal plate via the coil spring and the metal button pipe.

### Claim 5 (depends on 1)

The electronic device according to claim 1, wherein the first metal component and the second metal component are attached to the case using a fastener via the first terminal plate.

### Claim 6 (depends on 2)

The electronic device according to claim 2, wherein the first metal component and the second metal component are attached to the case using a fastener via the first terminal plate.

### Claim 7 (depends on 3)

The electronic device according to claim 3, wherein the first metal component and the second metal component are attached to the case using a fastener via the first terminal plate.

### Claim 8 (depends on 4)

The electronic device according to claim 4, wherein the first metal component and the second metal component are attached to the case using a fastener via the first terminal plate.

### Claim 9 (depends on 2)

The electronic device according to claim 2, wherein the third metal component and the fourth metal component are attached to the case using a fastener via the second terminal plate.

### Claim 10 (depends on 6)

The electronic device according to claim 6, wherein the third metal component and the fourth metal component are attached to the case using a fastener via the second terminal plate.

### Claim 11 (depends on 1)

The electronic device according to claim 1, wherein an antenna is provided within the case.

### Claim 12 (depends on 2)

The electronic device according to claim 2, wherein an antenna is provided within the case.

### Claim 13 (depends on 3)

The electronic device according to claim 3, wherein an antenna is provided within the case.

### Claim 14 (depends on 4)

The electronic device according to claim 4, wherein an antenna is provided within the case.

### Claim 15 (depends on 1)

The electronic device according to claim 1, wherein the GND functional section is a diaphragm that is configured from a metal plate.

### Claim 16 (depends on 2)

The electronic device according to claim 2, wherein the GND functional section is a diaphragm that is configured from a metal plate.

### Claim 17 (depends on 3)

The electronic device according to claim 3, wherein the GND functional section is a diaphragm that is configured from a metal plate.

### Claim 18

An electronic timepiece comprising:
a first metal component and a second metal component that are externally mounted to a case;
a first terminal plate that is electrically connected to the first metal component and the second metal component on an outside of the case; and
a GND functional section that is provided inside the case and is electrically connected to the first terminal plate.

### Claim 19 (depends on 18)

The electronic timepiece according to claim 18, further comprising:
a third metal component and a fourth metal component that are externally mounted to the case; and
a second terminal plate that is electrically connected to the third metal component and the fourth metal component on an outside of the case,
wherein the GND functional section is electrically connected to the second terminal plate.

### Claim 20 (depends on 19)

The electronic timepiece according to claim 19, wherein
the first metal component, the second metal component, and the first terminal plate are disposed on a 3 o'clock side, and
the third metal component, the fourth metal component, and the second terminal plate are disposed on a 9 o'clock side.
