Abstract:
Disclosed herein are a composition for stabilizing Epigallocatechin gallate (EGCG) in water phase comprising 0.1-25.0% by weight of Epigallocatechin gallate, 0.1-5.0% by weight of a cationic polymer, an anionic polymer or a mixture thereof, 0.1-10.0% by weight of antioxidant in a remainder of water or the mixture of water and a hydrophilic solvent and a preparation method thereof. The composition is not easily decomposed in water phase as well as in external envionment consisting of temperature change, light effect etc. because the composition is stabilized by reacting with a cationic polymer or an anionic polymer.
Abstract:
There is provided a keypad assembly operating a dome switch of a mobile phone. The keypad assembly includes a keypad disposed on the dome switch and having a plurality of bosses protruded from a position corresponding to the movable contactys, and a plurality of metal keys each disposed on the keypad at a position corresponding to each boss and protruding from a surface of the housing at a desired height, each of the metal keys formed with a numeral and/or character display penetrating through an upper surface therof. Since the metal key is made of metal, it represents a metal feeling, in addition to various colors. Also, since the metal key is slimmed, it minimizes a thickness of the mobile phone. In addition, a process for forming the keypad is minimized thereby to reduce additional cost.
Abstract:
A low profile tactile switch for actuating a circuit including a conductive member (20, 72, 122, 131) having a dome profile (23, 73, 123a-d, 131a-i) and lead means (24, 74, 75), a conductive contact member (28, 80, 124, 132) having a contact (29, 87) and lead means (30, 90, 122a, 124a, 164a-c, 147a-c) and an insulating member (34, 82, 125, 133) arranged between the conductive member and the contact member but allowing contact between the members upon actuation of the dome profile, wherein the switch may be mass produced from rolls of flat material (45a, 46a, 47a, 93, 95).
Abstract:
In accordance with an example embodiment of the present invention, an apparatus, comprising a key comprising a first key portion, a second key portion, and a third key portion. The first key portion comprises a first material. The second key portion comprising a translucent material where the translucent material different than the first material, the translucent material supports the third key portion.
Abstract:
A foil-type switching element comprises a first carrier foil and a second carrier foil arranged at a certain distance from each other by means of a spacer, said spacer comprising at least one recess defining an active area of the switching element. At least two electrodes are arranged in the active area of the switching element between said first and second carrier foils in such a way that, in response to a pressure acting on the active area of the switching element, the first and second carrier foils are pressed together against the reaction force of the elastic carrier foils and an electrical contact is established between the at least two electrodes. According to the invention, at least one of said carrier foils comprises a multi-layered configuration with at least two layers of different materials.