| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 200516000 | Including auxiliary dome/disc type spring | 7 |
| 20080237020 | Switch device having a spacer organizing contact tails - A casing, in which a plurality of contacts are fixed, an operation element which is arranged so as to be able to move in translation in the casing, a conductive dome-like member which is arranged in the casing and which is resiliently deformable under the action of the displacement of the operation element between a first state and a second state of commutation, the light source is fixedly joined to the casing, the switch device further defines a spacer which connected the casing for fixing the tail of the contacts so as to prevent the contacts from distorting. | 10-02-2008 |
| 20100206707 | ELECTRONIC APPARATUS - An electronic apparatus includes an operation member which includes an operation portion, a substrate which includes a switch detecting pattern and a ground pattern, and a sheet member which is disposed between the operation member and the substrate and provided with a metal piece for causing the switch detecting pattern to be electrically continuous to the ground pattern according to an operation to the operation portion, wherein the metal piece is in contact with the ground pattern, and the sheet member covers the metal piece with an insulating member in such a manner that at least a part of a surface of the metal piece is exposed. | 08-19-2010 |
| 20100264007 | PORTABLE TERMINAL - Disclosed is a portable terminal, including, a first conductor formed on one surface of a board and having a contact surface, a second conductor formed at an outer periphery of the first conductor and having a support surface, and a metal dome supported by the support surface and transformed responsive to a key being pressed so as to contact the contact surface, wherein the contact surface is located at a position lower than the support surface so as to increase a transformation stroke of the metal dome. | 10-21-2010 |
| 20110155554 | METAL DOME PUSH BUTTON SWITCH - A push button switch using a metal dome is provided that can ensure stable contact between the metal dome and fixed electrodes without using a through-hole in a PCB, can maintain the stable contact even after being operated many times, and can be obtained at low cost. The push button switch includes: a central electrode to which a circuit trace is connected without using a through-hole and with which the apex of the metal dome comes into contact when the push button switch is depressed; and an annular electrode with which the outer circumference of the metal dome is in contact. These fixed electrodes are printed with a conductive ink on the PCB, and the springy metal dome is placed over these fixed electrodes. The structure of the printed layers is identical over the entire region of the annular electrode with which region the metal dome is in contact. | 06-30-2011 |
| 20110180379 | SWITCH MODULE WITH LIGHTED KEY - A switch module with lighted key has a cover sheet having an adhesive layer on a rear surface, a dome-shaped contact spring adhered on a rear surface of the cover sheet by the adhesive layer, a substrate including a fixed contact switched to an electrically conducted state or an insulated state with the contact spring, and a light guide sheet arranged on a front surface side of the cover sheet. One or more recesses are formed in a region facing the contact spring of at least one of a front surface and a rear surface of the light guide sheet so as not to penetrate toward a surface on an opposite side. | 07-28-2011 |
| 20120292171 | SWITCH - Provided is a switch including a click spring, stationary contacts, spring holding sheet, switch base, and Nub disposed on the sheet and having a non-linear acting load to displacement characteristic. Spring constant k | 11-22-2012 |
| 20140318943 | PUSH SWITCH - Provided is a push switch that can be made thin without requiring that a notch be made into a mounting board. The push switch includes a substrate having a L-shaped cross section and wherein the substrate has a front surface, a back surface and a side face, an accommodating recess provided on the front surface, a center contact provided so as to be substantially centralized in the accommodating recess, a pair of peripheral contacts each provided at a circumferential edge of the accommodating recess, a movable contact spring constructed so as to extend across the pair of peripheral contacts and designed to be brought into contact with the center contact when pressed, a connection pad provided on the back surface and electrically connected to the mounting substrate, and an electrode provided on the side face and electrically connected to the connection pad. | 10-30-2014 |
