# US 10,770,782 B2 · Electronic apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,782 B2 - Document ID: US10770782B2 - Status: Granted - Kind: B2 - Application number: 16/296,792 - Filed: 2019-03-08 - Published: 2019-09-12 - Granted: 2020-09-08 - Earliest claimed: 2018-03-09 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Tadashi Aizawa; Seiji Osawa - Web page: https://patentgrep.com/patent/US10770782B2 ## CPC - G01S 19/19: Sporting applications - H01Q 1/241: {used in mobile communications, e.g. GSM (H01Q1/247, H01Q1/248 take precedence)} - G01S 19/14: specially adapted for specific applications - G01S 19/36: relating to the receiver frond end - G04G 17/04: Mounting of electronic components - G04G 21/04: using radio waves (radio-controlled time-pieces G04R) - G04R 60/10: inside cases - H01Q 1/273: {Adaptation for carrying or wearing by persons or animals} - H01Q 9/42: with folded element, the folded parts being spaced apart a small fraction of the operating wavelength - H01Q 21/065: {Patch antenna array} - G04B 47/00: Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece ({clockwork cases for special purposes G04B37/12; clocks with magnifying glass built in the face G04B39/00; time-pieces in which parts or cases produce special effects, e.g. aesthetic effects, G04B45/00, particularly with inscriptions or pictures moved by hand G04B45/003, with specially shaped cases or parts G04B45/0069; combination of} writing or drawing implements with devices for indicating time B43K29/087; combined with cameras, projectors, or photographic printing apparatus G03B29/00) - G04C 10/02: the power supply being a radioactive {or photovoltaic} source - G04G 17/045: {Mounting of the display} - G04G 17/08: Housings - G04G 21/025: {for measuring physiological data} - H01Q 1/12: Supports; Mounting means - H01Q 1/125: {Means for positioning} - H01Q 1/242: {specially adapted for hand-held use} - H01Q 1/42: Housings not intimately mechanically associated with radiating elements, e.g. radome - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - G04G: ELECTRONIC TIME-PIECES - G04R: RADIO-CONTROLLED TIME-PIECES - G04B: MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS (spring- or weight-driven mechanisms in general F03G; electromechanical clocks or watches G04C; electromechanical clocks with attached or built-in means operating any device at pre-selected times or after predetermined time intervals G04C23/00; clocks or watches with stop devices G04F7/08) - G04C: ELECTROMECHANICAL CLOCKS OR WATCHES ## Abstract An electronic apparatus includes: a circuit substrate on which circuit components are disposed; and an antenna that includes a first electrode and a second electrode which is opposite to a surface of the circuit substrate, on which the circuit components are disposed, and includes a projection portion protruding in a direction from the second electrode toward the circuit substrate, a top portion of the projection portion not overlapping with the circuit components in plan view along a thickness direction of the circuit substrate. In the antenna including the first electrode and the second electrode, even if a surface of the antenna has an unevenness shape, as an average of thicknesses of the antenna is thicker, sensitivity of the antenna is improved. ## Claims ### Claim 1 An electronic apparatus comprising: a circuit substrate on which circuit components are disposed; and an antenna that includes a first electrode, and a second electrode which is disposed between the first electrode and the circuit substrate, is opposite to a surface, on which the circuit components are disposed, of the circuit substrate, and includes a projection portion protruding in a direction from the first electrode toward the circuit substrate, the projection portion not overlapping with the circuit components in plan view along a thickness direction of the circuit substrate. ### Claim 2 (depends on 1) The electronic apparatus according to claim 1, the projection portion surrounds the circuit components in the plan view, and the projection portion is in contact with the circuit substrate. ### Claim 3 (depends on 2) The electronic apparatus according to claim 2, wherein the circuit substrate is connected with the first electrode by a signal line, and the circuit substrate is connected with the second electrode by a ground line. ### Claim 4 (depends on 1) The electronic apparatus according to claim 1, wherein the second electrode covers the circuit components. ### Claim 5 (depends on 1) The electronic apparatus according to claim 1, wherein the second electrode functions as an electromagnetic shield. ### Claim 6 (depends on 1) The electronic apparatus according to claim 1, wherein the antenna includes a short circuit which shunts the first electrode and the second electrode, and in a case where the antenna is divided into a first area and a second area by a second virtual straight line passing through a center of a first virtual straight line connecting one end and the other end of the short circuit in the plan view and equally dividing an area of the first electrode in half, a volume of the first area is different from a volume of the second area. ### Claim 7 (depends on 1) The electronic apparatus according to claim 1, wherein the circuit substrate is connected with the first electrode by a signal line, and the circuit substrate is connected with the second electrode by a ground line. ### Claim 8 (depends on 1) The electronic apparatus according to claim 1, further comprising: a display unit, wherein the antenna is positioned between the display unit and the circuit substrate. ### Claim 9 (depends on 8) The electronic apparatus according to claim 8, wherein the electronic apparatus is an electronic timepiece, and further comprises a housing which includes an opening, a bottom surface, and a side surface and accommodates the circuit substrate, the antenna, and the display unit, and a light-transmissive member which covers the opening. ### Claim 10 An electronic apparatus comprising: a circuit substrate on which circuit components are disposed; and an antenna that includes a first electrode, and a second electrode which is disposed between the first electrode and the circuit substrate, is opposite to a surface, on which the circuit components are disposed, of the circuit substrate, and includes a recess portion recessing in a direction from the circuit substrate toward the first electrode, the recess portion overlapping with the circuit component in plan view along a thickness direction of the circuit substrate. ### Claim 11 (depends on 10) The electronic apparatus according to claim 10, wherein a volume of the recess portion is larger than a volume of the circuit components. ### Claim 12 (depends on 10) The electronic apparatus according to claim 10, wherein the recess portion surrounds the circuit components. ### Claim 13 (depends on 10) The electronic apparatus according to claim 10, wherein the antenna includes a short circuit which shunts the first electrode and the second electrode, and in a case where the antenna is divided into a first area and a second area by a second virtual straight line passing through a center of a first virtual straight line connecting one end and the other end of the short circuit when seen in the plan view and equally dividing an area of the first electrode in half, a volume of the first area is different from a volume of the second area. ### Claim 14 (depends on 10) The electronic apparatus according to claim 10, wherein the circuit substrate and the first electrode are connected by a signal line, and the circuit substrate and the second electrode are connected by a ground line.