| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Movable contact unit having press-down projections | US10700680 | 2003-11-05 | US20040129548A1 | 2004-07-08 | Masahiro Ito; Naoki Sera; Nobuhiro Numoto |
| Movable contact unit of the present invention comprises a plurality of dome-like movable contacts made of electrically conductive metal sheets capable of making an inflective action when depressed, a base film having an adhesive layer for retaining upper surfaces of the plurality of movable contacts, and a plurality of press-down projections bonded by adhesive to an upper surface of the base film in positions corresponding to center portions of the respective movable contacts, wherein the upper surface of the base film and underside surfaces of the press-down projections are each provided with a pretreated layer. The above structure has an advantage of strengthening the bonding between the adhesive and each of the pretreated layers formed on the adhering surfaces of the base film and the press-down projections, so as to provide the movable contact unit with outstanding reliability in maintaining the bonded condition for a long duration. | ||||||
| 122 | Pressure actuated switching device and method and system for making same | US10227963 | 2002-08-26 | US20030066741A1 | 2003-04-10 | Lester E. Burgess; Richard Lerch |
| A pressure actuated switching device is made by applying at least a first layer of fluid conductive polymeric coating material to a surface of a sheet of green rubber material. The conductive polymeric coating is solidified to form an electrode, and the sheet of green rubber material is vulcanized. Two strips of green rubber may be simultaneously processed and then joined such that the respective layers of conductive coating are in spaced apart opposing relationship. The conductive polymeric coating may optionally be formulated with green rubber. Optionally, a blowing agent may be included in the conductive coating formulation so as to provide a cellular polymeric foam piezoresistive material from which the electrode is constructed. The green rubber sheets may be processed by a continuous rotary method or by a linear method using a clamping press having opening and closing dies for heating and joining the strips of green rubber. | ||||||
| 123 | Binding agent composition for keypad and method for binding keypad | US09953871 | 2001-09-18 | US20020144772A1 | 2002-10-10 | Ming-Rong Wu; Chui-Yu Chiu |
| A binding agent composition for keypad and method for binding keypad to membrane is disclosed. The binding agent composition for keypad according to the present invention comprises a UV-curable ink and a surfactant and optionally silicone oil, ethyl alcohol, or hexane. The keypad is mounted on the membrane applied with the binding agent composition and cured together such that the keypad is firmly bound to the membrane. The problems of dust invade and incorrect key pressing are overcome. | ||||||
| 124 | Decorative backlit components using transparent thermoplastic elastomers and methods of making the same | US20217 | 1998-02-06 | US6156411A | 2000-12-05 | Walter R. Jennings |
| A method of making soft touch components such as a switch button in an automobile. The component part is molded out of optically clear thermoplastic elastomer. In the molding process, a thin decorative ink film is molded onto the surface the part. The decorative film may consist of multiple layers, incorporating colors, graphics and different textures. The backlighting will occur through the transparent optically clear thermoplastic elastomer. | ||||||
| 125 | Method of fabricating key switches and the product thereof | US651497 | 1996-05-22 | US5700984A | 1997-12-23 | Chi-Lung Tsai |
| A key switch fabrication method including the steps of: i) molding a rubber pad from silicone resin, and making a rubber key stitch body from the rubber pad by stamping; ii) printing the desired letter or pattern on the top side (10) of the rubber key switch body (1) thus obtained, then drying the printed key switch body 1 by baking; iii) adhering a liquid silicone rubber on the key switch body over the printing thereof by spot glueing to form a transparent key cap; vi) heating the key switch thus obtained from step iii) in a baking oven at 60.degree. C. for 5 minutes and then heating it at 120.degree. C. for 10 minutes to harden the key cap; and v) examining the quality of the finished key pad. | ||||||
| 126 | Method of treating structures including silicone materials | US247826 | 1994-05-23 | US5502162A | 1996-03-26 | Ching-Ping Wong |
| Problems resulting from contamination of electronic apparatus used with silicone keypads can be eliminated or substantially reduced by soaking such keypads prior to assembly in a low molecular weight liquid hydrocarbon, particularly n-hexane. Such soaking removes low molecular weight unreactive cyclics from the keypad which might otherwise contaminate the electronic apparatus. | ||||||
| 127 | Process for producing finger-touch key for manipulation switch | US79143 | 1993-06-17 | US5439545A | 1995-08-08 | Yutaka Nakanishi; Yasushi Sasaki |
| A process for producing a composite finger-touch key with superior fastness, in which the key top layer is chemically bonded to the key base piece even when a silicone resin is employed for the key base piece, which process is characterized by treating the surface of the key base piece to be bonded with the key top layer by exposing to a UV-irradiation or to a plasma discharge in order to subject the surface to a chemical activation, applying then a coupling agent based on silane, such as aminopropyl triethoxysilane, vinyl triethoxysilane and mercaptopropyl trimethoxysilane, to the so-treated surface of the key base piece, providing thereon with a layer of a resin curable by UV-irradiation or by heating, such as those based on, for example, acrylic, epoxy or silicone resin, of an adequate configuration and exposing the resin layer to a UV-irradiation or a heating to cause curing of the resin layer. | ||||||
| 128 | Laminated films for use in a touch panel | US530539 | 1990-05-30 | US5213880A | 1993-05-25 | Atsunori Yaguchi |
| A laminated film contains a base film having a conductive layer on one side thereof and a layer obtained by curing a curable phosphazene composition coated on the other side thereof. The laminated film is suitable for use in a touch panel having a switching function when pressing an operating section of the touch panel, the operating section being made from the cured layer of the phosphazene composition. The laminated film has a remarkably balanced combination of the properties, i.e., adhesion, surface hardness and appearance on the coat surface (shrinkage upon curing). | ||||||
| 129 | Membrane switch element with coated spacer layer | US121545 | 1987-11-17 | US4795861A | 1989-01-03 | James P. O'Rourke |
| An open-contact membrane switch element (1,2) comprising a plastic film substrate (10) carrying a first conductive circuit (13), a dielectric coating (30) applied to cover the circuit (13) on the substrate (10) in a pattern defining uncoated zones (31,32,34) around each contact (14-17) of the circuit (13), and a second conductive circuit (35) applied on the dielectric coating (30) and having conductive tracks (36,37) electrically interconnected at the uncoated zones (31,32,34) to portions of the contacts (14-17) of the first conductive circuit (13). | ||||||
| 130 | Covering member of keyboard and a base plate therefor | US37393 | 1987-04-10 | US4775574A | 1988-10-04 | Masami Fukushima; Kazutoki Tahara |
| A covering member of keyboard prepared by separately fixing the push button elements to a base plate instead of integral molding is disclosed in which the plate has openings arranged conforming to the pattern of the fixed contact points on the circuit board. Fixing is carried out by using a silicone rubber-based adhesive or a pressure-sensitive adhesive optionally with the aid of tailing of protrusions on the base plate into the cavity of the base of the push button elements. A method of using unit bodies carrying push button elements is alternatively used. A base plate having openings arranged in the pattern corresponding to the fixed contact points is also disclosed for use in fixing the push button elements. | ||||||
| 131 | Polyethylene naphthalate film for membrane switch | US938956 | 1986-12-08 | US4725479A | 1988-02-16 | Shigeo Utsumi |
| Disclosed herein is a biaxially oriented polyethylene naphthalate film which shows the haze-increasing rate, represented by the formula:Haze-increasing rate (%)=[(H.sub.2 -H.sub.1)/H.sub.1 .times.100wherein H.sub.1 is the haze before subjecting the film to heat treatment and H.sub.2 is the haze after subjecting the film to heat treatment, of not more than 20% and both the heat shrinkage in the longitudinal direction and the heat shrinkage in the transversal direction of not more than 0.5% when subjecting the film to heat treatment for 2 hours at 150.degree. C. | ||||||
| 132 | Information carrier, having a roughened surface, method of manufacturing same, and apparatus therefor | US670300 | 1984-11-13 | US4657419A | 1987-04-14 | Masao Takakuwa |
| An information carrier such as a push-button switch consists of a silicone elastomer. The information carrier has an a label-carrying surface in which there is embedded a printing ink having a vulcanizing mechanism similar to that of the silicone elastomer. The ink and silicone elastomer are vulcanized to form the ink into a pattern on the label-carrying surface. The label-carrying surface having the pattern embedded therein constitutes a non-glossy surface of a predetermined roughness. Also disclosed are a method and apparatus for manufacturing the information carrier by printing the printing ink on a transfer plate, which has a roughness of several microns, followed by half vulcanization to embed a pattern which is manifested by the printing ink into the label-carrying surface of the information carrier. | ||||||
| 133 | Flexible diaphragm keypad and method of manufacture | US683892 | 1984-12-20 | US4609791A | 1986-09-02 | Jean-Pierre Abbat |
| A keypad is formed of a set of transparent buttons slidably located within apertures of a grid. The grid has sidewalls for engagement with the base of a printed circuit board. Switch assemblies are provided by conductive elastomeric domes formed of a single sheet of elastomeric material disposed between the printed circuit board and the buttons. Integrally formed within a concave side of each dome is a contact region driven by a displacement of a button towards the printed cirucit board. An insulating layer above strip conductors of the circuit board is perforated at sites of the switches to allow the contact region to touch the exposed portions of the conductors to complete an electrical circuit. A dome deforms with springiness which urges the dome back to its original shape upon release of a button by a user of the keypad. Manufacture of the keypad is facilitated by construction of a set of the butons on a webbing which maintains alignment of the buttons as they are secured to the respective domes. The webbing is later removed to permit insertion of the buttons into apertures of the grid. | ||||||
| 134 | Input element with improved appearance and reliability | US692209 | 1985-01-17 | US4594482A | 1986-06-10 | Tetsuro Saito; Akihiko Komura |
| An input element which comprises a pair of transparent substrates, of which at least one is flexible, each having electrodes of transparent electroconductive film on its surface, being arranged in confrontation with the surface provided with the electrodes facing each other with a space therebetween, and a first spacer being arranged at the peripheral portions of the pair of substrates to hold the space, wherein a reflective convex second spacers in dot are provided on the lower substrate all over the inside surface of the element. | ||||||
| 135 | Sheet-like compact electronic equipment | US468401 | 1983-02-22 | US4558427A | 1985-12-10 | Eiichi Takeuchi; Kazuya Hara |
| A sheet-like compact electronic device includes an electronic parts assembly in which a semiconductor integrated circuit chip, a display element and a dry cell are arranged on a sheet-like board. The electronic parts assembly is flexible and is sandwiched between a sheet-like upper cover and a sheet-like lower cover. The upper cover is flexible and has a display window, and the lower cover is also flexible and has a flat lower surface. | ||||||
| 136 | Conductive elastomeric ink composition | US515823 | 1983-07-21 | US4518833A | 1985-05-21 | Richard L. Watkins |
| A conductive elastomeric ink is described comprised of very fine nickel particles admixed in a silicone binder. The ink has utility in elastomeric switch control devices, printed circuits and the like. | ||||||
| 137 | Switching contact | US355511 | 1982-03-08 | US4405849A | 1983-09-20 | Norman J. Frame |
| A flexible multilayered membrane switch having electrically conducting contacts comprising Ti.sub.2-x N or Ta.sub.2-x N, to reduce oxidation of the surfaces of the contacts. | ||||||
| 138 | Double-domed elastomeric keyboard element | US296628 | 1981-08-27 | US4378478A | 1983-03-29 | Reinhard Deeg |
| A double-domed elastomeric keyboard element is disclosed in which a solid contact disc is connected to the junction of the domes of the keyboard element housing. The inner dome is provided on its inside with a downwardly extending projection which engages the contact disc when the keyboard element is depressed to press the disc against a pair of conductors on a printed circuit board below the element. Because of the non-positive connection between the key plunger and the conductors, the contact pressure is almost equal to the operating force. | ||||||
| 139 | Methods of manufacturing tactile switch for keyboards and the like | US558481 | 1975-03-14 | US4067102A | 1978-01-10 | Gideon A. DuRocher; Daniel J. DuRocher |
| A tactile switch plate for a keyboard member has a planar body portion provided with a plurality of outwardly deformed carrier portions corresponding in number and spacing to the number and spacing of the keys of the keyboard. Each of the carrier portions is resiliently flexible for movement toward the plane of the body and each carrier portion carries a preferably elastomeric switching member that is adapted to bridge the conductors and establish an electrical circuit between the conductors. The plate and switching members are produced by a molding process and the elastomeric switching members are cured by heat. | ||||||
| 140 | Method for producing a switching membrane | EP12174002.1 | 2012-06-28 | EP2540512A1 | 2013-01-02 | Veenstra, Hylke; Wijnstekers, Matheus; Van Genuchten, Henricus C.M.; Van Mierlo, Paulus J. |
In a method a membrane for switching operation is made by providing a transparent sheet, forming a graphical layer by image-wise providing a curable ink layer using inkjet printing on a surface of the transparent sheet, wherein the graphical layer has a thickness of at most 35 micron, curing the graphical layer, and forming a flexible layer by providing an ink layer using screen printing over the graphical layer. The switching membrane is durable for switching operation and may be made at low-cost in small quantities.
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