Abstract: An antenna element is provided with an upper conductor, lower conductors, leg portions and feeding portions. The upper conductor is formed with aperture portions. The upper conductor has a middle portion, a ring portion and coupling portions. The ring portion is located apart from the middle portion and continuously surrounds the middle portion. The aperture portions are located between the middle portion and the ring portion in plan view. Each of the coupling portions couples the middle portion onto the ring portion. The leg portions extend from the ring portion. The lower conductors are apart from the upper conductor in an up-down direction and connected to the leg portions. the feeding portions extend from the upper conductor.

Abstract: An antenna element comprises an upper conductor, first lower conductors, second lower conductors, first leg portions, second leg portions and feeding portions. The upper conductor has a middle portion, a ring portion and coupling portions. The ring portion continuously surrounds the middle portion, and the coupling portions couple the middle portion and the ring portion to each other. The first leg portions extend from the middle portion, and the second leg portions extend from the ring portion. The first lower conductors and the second lower conductors are distinct and separated from one another and are apart from the upper conductor in an up-down direction. The first lower conductors are connected to the first leg portions, and the second lower conductors are connected to the second leg portions. The feeding portions extend from the upper conductor.

Abstract: Provided is a connector and a connector assembly with improved properties of a frame while the number of components is further reduced. The connector can be fitted with a counter connector and includes: a frame including a side wall which surrounds the counter connector; a first terminal and a second terminal which are situated inside the frame; and a blocking portion disposed between the first terminal and the second terminal. The side wall seamlessly continues over an entire periphery of the frame, the frame and the blocking portion are constituted of a same member to be integrated with each other, the blocking portion has a joint portion which joins one end portion to another end portion of the frame, and the joint portion is fixed to the board while being in contact with the board continuously from the one end portion to the other end portion of the frame.

Abstract: A socket contact includes a cylindrical sleeve, a plurality of cantilever-shaped spring pieces arranged in rotational symmetry with respect to the central line of the sleeve as a symmetric axis, and a base portion to which fixed ends of the plurality of spring pieces are fixed. The sleeve is movably mounted to the base portion, the plurality of spring pieces has bent portions between free ends and the fixed ends, the plurality of spring pieces is elastically deformed so that the free ends come close to each other when the sleeve is moved and covers the free ends, and a pin contact inserted among the plurality of spring pieces is sandwiched by the bent portions of the plurality of spring pieces elastically deformed by the moved sleeve, electrically connected, and held.

Abstract: An electrochemical measurement method is provided in which a working electrode that causes an oxidation-reduction reaction with a measurement target and a counter electrode connected to the working electrode are provided in an electrolytic solution containing the measurement target, and a measuring voltage is applied between the working electrode and the counter electrode to measure a current that flows between the working electrode and the counter electrode in proportion to the amount of the measurement target, wherein an eliminating electrode is provided in the electrolytic solution, and the method performs: eliminating the measurement target by applying an eliminating voltage, which has the same polarity as the measuring voltage, between the eliminating electrode and the counter electrode to oxidize or reduce the measurement target; diffusing a new measurement target; and measuring the current by applying the measuring voltage between the working electrode and the counter electrode.

Abstract: A terminal-accommodation portion of a housing pierces a terminal-holding portion in a front-rear direction. A recess portion pierces the terminal-holding portion in a width direction and is opened upward. The recess portion communicates with the terminal-accommodation portions through an aperture formed in a bottom portion thereof. A latched portion of the terminal-accommodation portion protrudes in the recess portion. A protrusion portion of a retainer is provided with a latching portion and a retaining portion. When the protrusion portion is accommodated in the recess portion, the protrusion portion is positioned upward of the bottom portion of the recess portion. The latching portion is positioned downward of the latched portion. The retaining portion is positioned rearward of and faces a retained portion of a terminal.

Abstract: An RFID tag is provided with a base member, an antenna portion and an IC chip. A split-ring resonator portion of the antenna portion has a first part and a second part. First end portions of the first part are provided with a first facing portion and a first connection portion, respectively. Second end portions of the second part are provided with a second facing portion and a second connection portion, respectively. The first and the second facing portions are apart from and face each other. A third end portion of the impedance matching portion is connected to the first part between the first facing portion and the first connection portion, and another third end portion is connected to the second part between the second facing portion and the second connection portion. The IC chip is connected to the first connection portion and the second connection portion.

Abstract: A cable assembly comprises a cable, a holding member and a contact. The holding member holds the cable. The contact is located above the holding member in an upper-lower direction. The cable comprises a conductive wire. The conductive wire has a fixed portion. The holding member has a predetermined surface. The contact has a facing surface. The facing surface is in contact with the predetermined surface in the upper-lower direction or faces the predetermined surface with a distance formed therebetween in the upper-lower direction. The fixed portion is fixed and connected to the predetermined surface.

Abstract: A connector electrically connecting a module substrate and a main substrate includes: a housing mounted on the main substrate; contacts held on the housing, the contacts including contact parts and connection parts connected to the main substrate; a frame including a flat board part and side board parts, the flat board part fixed to the main substrate, one of a cam groove and a projection formed on the side board parts; a slider attached between the side board parts during the projection's insertion into the cam groove, the other of the cam groove and the projection formed at opposite side portions; a plate contained between the side board parts, the plate forming an insertion space between the plate and the housing, where when the slider slides in the module substrate's insertion direction into the insertion space, the slider presses the module substrate against the contact parts through the plate.

Abstract: A connector electrically connecting a module substrate and a main substrate includes: a housing mounted on the main substrate; contacts held on the housing and including contact parts and connection parts connected to the main substrate; a frame including side board parts sandwiching a flat board part and the main substrate, the side board parts forming one of a cam groove and a projection; and a slider having opposite side portions forming the other of the cam groove and the projection, forming an insertion space between the slider and the housing upon the projection's insertion into the cam groove and the slider's attachment to the frame, pressing the module substrate against the contact parts upon the slider sliding in the module substrate's insertion direction, sandwiching main substrate, the housing and the module substrate between the slider and the flat board part.