Polymatech Co., Ltd. Patent applications |
Patent application number | Title | Published |
20130137322 | Thermally Conductive Sheet - A thermally conductive sheet includes a mesh sheet and a thermally conductive composition containing a resin composition and a thermally conductive filler and coating both sides of the mesh sheet so as to form a thermally conductive layer. The thermally conductive sheet is prevented from trapping air bubbles so as to exhibit high thermal conductivity, and is so strong that does not easily tear. The mesh sheet has mesh holes defined by thread intersecting with each other. The intersection of the threads is provided with an bubble inclusion inhibition part for preventing air bubbles from being trapped in the interface between the thermally conductive composition and the mesh sheet. The bubble inclusion inhibition part may be a fused portion, a pressure-bonded portion or the like. | 05-30-2013 |
20100110712 | LIGHT LENS FOR CAR INTERIOR LIGHTING DEVICE - A light lens used for a car interior lighting device for transmitting light from a light source therethrough and illuminating the car interior is provided, and the light lens has a transparent light lens body, electrodes that are colored transparent conductive coating films for detecting the capacitance and located on a light source side of the light lens, and an insulative coating film that has almost the same color and transmission rate as the conductive coating films and is located on the periphery of the conductive coating films. With this configuration, the uniform light transmission rate is achieved over the light lens. | 05-06-2010 |
20100009109 | Thermally conductive sheet composite and method for manufacturing the same - A thermally conductive sheet composite comprises a gelatinous thermally conductive sheet molded of a thermally conductive polymer composition containing a polymeric material and a thermally conductive filler, and a release sheet molded separately from the thermally conductive sheet and peelably laminated on at least one surface of a pair of surfaces of the thermally conductive sheet. The release sheet has a hardness of 30 or more as measured by a type A durometer in conformity with ISO 7619. | 01-14-2010 |
20090277766 | Elastic Member for Pushbutton Switch - An elastic member for a pushbutton switch with which a soft tactile sensation can be gained when the pushbutton is pressed down is provided. The elastic member for a pushbutton switch is provided with a base portion, a connection portion which extends from the base portion, a pressing portion which is supported above the base portion by the connection portion, and a protrusion which protrudes downward from the pressing portion. The inside of the protrusion is hollow. | 11-12-2009 |
20090220793 | Graphite Sheet and Manufacturing Method of the Same - For a graphite sheet, a peak intensity ratio (P100/002) of a (100) diffraction peak and a (002) diffraction peak by X-ray diffractometry, and a peak intensity ratio (P110/002) of a (110) diffraction peak and a (002) diffraction peak thereby are set at 10 or more. The graphite sheet is manufactured through a step of preparing a polymer liquid which contains a polymer having carbon in its molecular chains and develops optical anisotropy, a step of unidirectionally orienting the molecular chains of the polymer, a step of obtaining a compact from the polymer liquid in the state that the orientation of the molecular chains of the polymer is maintained, and a step of carbonizing and thereafter graphitizing the compact. | 09-03-2009 |
20090032675 | Viscous fluid-sealed damper - Provided is a viscous fluid-sealed damper which helps to achieve an increase in degree of freedom in terms of the selection of the material of a sealing container, which can be produced with high production efficiency, and which helps to avoid leakage of the viscous fluid. A lid member is fixed to a container main body while compressing and holding a flange portion between a sealing member and the lid member, so an opening end of the container main body can be sealed with the lid member without having to effect fixation through fusion-bonding as in the prior art, and the degree of freedom in terms of material selection can be increased. Further, if the container main body is formed of a butyl rubber, the container main body can be fixed to the lid member without using any adhesive, so it is possible to achieve a reduction in production time and in cost. Further, it is possible to avoid leakage of the viscous fluid due to defective adhesion. | 02-05-2009 |
20090014304 | Key sheet - A thin-film-like key sheet covering pushbutton switches is equipped with a plurality of key tops constituting operating pushbuttons, and a film-like base sheet on an upper surface of which the key tops are placed, in which a depression load is small, and no interference with the adjacent key tops and a frame sheet occurs when depressing the key tops, thus avoiding undulating movement of those components. There is further provided a film-like shape maintaining sheet covering a lower surface of a base sheet and stacked on the base sheet, and the shape maintaining sheet has, at dividing positions between the adjacent key tops, insulating slits insulating a stress generated along a surface of the shape maintaining sheet when the key tops are depressed. Thus, the key tops do not easily rise or become shaky at a time of depressing operation. | 01-15-2009 |
20080302622 | Damper, and electronic component and electronic apparatus equipped with the damper - Disclosed is a damper that is easy to mount and capable of attenuating to a sufficient degree a vibration generated by an electronic component; also disclosed are an electronic component and an electronic apparatus that are provided with such a damper. A mounting insertion portion is provided with a hard portion maintaining the configuration of the mounting insertion portion. | 12-11-2008 |
20080295959 | Thermally Conductive Adhesive Composition and Adhesion Method - A thermally conductive adhesive composition contains a polymerizable (meth)acrylic compound (A) comprising at least one of a (meth)acrylic monomer and a (meth)acrylic oligomer, an organic peroxide (B), a thermally conductive filler (C) and a vanadium compound (D). The volume ratio α of the polymerizable (meth)acrylic compound (A) to the thermally conductive filler (C) determined by the following formula (1) is 0.40 to 0.65. 40 to 100% by mass of the thermally conductive filler (C) is subjected to hydrophobic surface treatment. | 12-04-2008 |
20080289810 | Thermal Diffusion Sheet and Method for Positioning Thermal Diffusion Sheet - A thermal diffusion sheet is provided with a graphite sheet for diffusing heat generated by a heat emitting body and a polymer film provided on the graphite sheet. The thermal diffusion sheet is provided with a positioning portion for carrying out positioning relative to the heat emitting body. | 11-27-2008 |
20080268202 | Decorative sheet, decorative molded body, decorative key sheet, and decorative sheet manufacturing method - Provided are a decorative sheet which is enhanced in durability of an edge portion of a soft feel layer thereof and which is unlikely to suffer breakage, a method of manufacturing such a decorative sheet, a decorative molded body, and a decorative key sheet. A compressed portion formed by crushing a foam layer in a thickness direction is provided at a side surface of an edge portion of a decorative sheet with a soft touch feeling. | 10-30-2008 |
20080241488 | Thermally conductive sheet and method of manufacturing the same - A thermally conductive sheet comprises a thermally conductive polymer layer, an adhesive layer provided on an outer surface of the thermally conductive polymer layer, and a thermal diffusion layer, which is a functional layer provided on the adhesive layer. The thermally conductive polymer layer is formed of a thermally conductive polymer composition containing a polymer matrix and a thermally conductive filler. The coefficient of static friction of the thermally conductive polymer layer is 1.0 or lower. The adhesive layer has an outer shape smaller than that of the thermally conductive polymer layer. | 10-02-2008 |
20080241456 | Decorative sheet, decorative molded body, decorative key sheet, and decorative sheet manufacturing method - To provide a decorative sheet having enhanced durability of an edge portion of a soft feel layer and is unlikely damaged, a manufacturing method for a decorative sheet, a decorative molded body, and a decorative key sheet, a decorative sheet with a soft touch feeling has a foamed layer having a side surface of an edge portion | 10-02-2008 |
20080236806 | Laminated Body - A laminated body comprises a thermally conductive sheet, a protective sheet, an auxiliary sheet, a carrier sheet and a coating sheet. The thermally conductive sheet comprises a main sheet body and an adhesive layer. The coefficient of static friction of the main sheet body is 1.0 or lower. The adhesive layer has high adhesiveness in comparison with the main sheet body, and has an outer shape smaller than that of the main sheet body. The protective sheet is formed having an outer shape larger than that of the adhesive layer, and provided with a cutting line extending toward the adhesive layer from the peripheral portion of the protective sheet so that the protective sheet can be cut along the cutting line. | 10-02-2008 |
20080206521 | Decorative key sheet for pushbutton switches - Disclosed is a decorative key sheet of high visibility which is superior in terms of design and helps to maintain a quality appearance, which enables an operator to perform input operation safely, and which is of a thin type. The decorative key sheet is formed as a thin sheet including an operation plate, a film sheet, and a base sheet. A fine asperity pattern is provided on a front surface side of an operation plate. Further, a light reflection layer enhancing the visibility of the fine asperity pattern is provided on a back surface of the operation plate. The operation plate is transparent. The fine asperity pattern is formed on a resin layer. | 08-28-2008 |
20080199688 | Thermal Diffusion Sheet and Manufacturing Method of the Same - A thermal diffusion sheet is provided with a heat conducting layer, a thermal diffusion layer provided on the surface of the heat conducting layer and a heat insulating layer provided on the surface of the thermal diffusion layer. The heat conducting layer is formed of a composition containing an organic polymer and a heat conductive filler. The thermal diffusion layer is formed of a metal material. The heat insulating layer is formed of a material having electrical insulation properties. The thermal diffusion sheet is manufactured through providing a heat insulating layer on the surface of a thermal diffusion layer, preparing a composition, and forming a heat conducting layer. When preparing a composition, an organic polymer in liquid form having thermosetting properties and a heat conductive filler are mixed. When forming a heat conducting layer, the above described composition is applied to the surface of the thermal diffusion layer facing the surface on which the heat insulating layer has been provided, and after that, the composition is heated so that the organic polymer is cured. | 08-21-2008 |