Patent application number | Description | Published |
20080311373 | Electromagnetic wave absorbing material and method for preparing the same - An electromagnetic wave absorbing material and a method for preparing the same are disclosed. The electromagnetic wave absorbing material consists of liquid resin, carbon nanocapsules, carbon fiber and hollow glass microsphere. All components are mixed well to form the electromagnetic-wave absorbing material. The method for preparing the electromagnetic-wave absorbing materials includes steps of: mixing the liquid resin, carbon nanocapsules, carbon fiber and hollow glass microsphere well to form a slurry solution; pour the slurry solution into a mold; after curing and cooling, an electromagnetic-wave absorbing material is obtained. The electromagnetic-wave absorbing material with density ranging from 0.75 to 1.0 g/ml matches requirements of compact design and light weight in high technology industries. | 12-18-2008 |
20090257944 | METHOD FOR PRODUCING CARBON NANOTUBE - A method for producing carbon nanotubes uses a polymer as a raw material to undergo in situ thermal decomposition. The method includes steps of mixing the polymer and metallic catalyst through a multiple heating stage process of in-situ thermal decomposition to carbonize the polymer and release carbon elements to produce carbon nanotubes. Advantages of the present invention include easy to prepare, low temperature in manipulation, low production cost, and high safety. | 10-15-2009 |
20100285715 | METHOD OF MANUFACTURING CARBON NANOTUBE (CNT) FIELD EMISSION SOURCE - A method of manufacturing carbon nanotube (CNT) field emission source, comprising the following steps of: providing a substrate; disposing an electrode layer on substrate; applying a mixture on electrode layer by means of screen printing, and mixture is a mixture of CNT paste and carbon powder; performing sinter in proceeding with a heat cracking reaction, and the carbon cracked and obtained in a heat cracking reaction of carbon powder and polymer in CNT paste is used as a carbon source, and that is used to grow a CNT emission layer of a hedgehog-shaped CNT cluster structure, thus obtaining a cathode plate after completion of sinter process. The hedgehog-shaped CNT cluster structure is a carbon nanotube (CNT) emission layer capable of having multi-direction electron emission routes. As such, it can realize the characteristics of high current density, and low turn-on voltage, while raising the stability of electron field emission. | 11-11-2010 |
20120114944 | URCHIN-LIKE IRON OXIDE AND A METHOD FOR PRODUCING THE URCHIN-LIKE IRON OXIDE - The present invention relates to an urchin-like iron oxide and a method for producing the urchin-like iron oxide. The urchin-like iron oxide comprises a core and multiple needle-like elongations protruded from the core. The needle-like elongations could be wire, rod, tube, cone, and flake. The length/width ratio of the needle-like elongation is high enough to apply in an optoelectronic field. The method in accordance with the present invention is to stably heat an iron-contained powder under room temperature by a thermal oxidation. The surface of the iron-contained powder is slow oxidized to form an urchin-like iron oxide with multiple uniform distributed needle-like elongations protruded from the surface. The size of each needle-like elongation is easily adjusted and changed by controlling the heating temperature. The method has advantages of simplified operation and lowered expense. | 05-10-2012 |
20120248967 | DOUBLE-SIDED LIGHT EMITTING FIELD EMISSION DEVICE AND METHOD OF MANUFACTURING THE SAME - A double-sided light-emitting field emission device and method of manufacturing same, said device comprising at least two transparent conductive layers, mixed field emission layers, and transparent package device. Wherein, the mixed field emission layer of field emission source and phosphor are utilized directly to serve as anode and cathode alternatively, such that on applying an AC power supply, roles of anode and cathode are changed alternatively along with frequency, hereby forming double-sided light-emitting structure. Therefore, the applications of said double-sided light-emitting field emission device are pretty wide, and having advantages of protecting field emission source, activating field emission source, reducing field emission arcing effect, having conductive phosphor, and raising illumination. | 10-04-2012 |
20130015778 | TRIODE-TYPE FIELD EMISSION DEVICE AND METHOD OF MANUFACTURING THE SAMEAANM LI; Yuan-YaoAACI Min-HsiungAACO TWAAGP LI; Yuan-Yao Min-Hsiung TWAANM Youh; Meng-JeyAACI New Taipei CityAACO TWAAGP Youh; Meng-Jey New Taipei City TWAANM Tseng; Chun-LungAACI Alian ShiangAACO TWAAGP Tseng; Chun-Lung Alian Shiang TWAANM Wu; Hung-ChihAACI New Taipei CityAACO TWAAGP Wu; Hung-Chih New Taipei City TWAANM Juan; Yen-MingAACO USAAGP Juan; Yen-Ming USAANM Lin; Wang-HuaAACO USAAGP Lin; Wang-Hua US - A triode-type field emission device and method of manufacturing the same, suitable for use in screen print process of curved or planar substrate, comprising the following steps: firstly, form a cathode and a gate on a cathode substrate at the same time by means of screen printing, and a gap is located between gate and cathode, to avoid short circuit or interference; next, form a hedgehog-shape field emission layer on at least said cathode; then, form a transparent conductive layer and a light emitting layer sequentially on an anode substrate; and finally, dispose cathode substrate and anode substrate in parallel and spaced apart, and package them into a triode-type field emission device. Bias of cathode and gate can be controlled to achieve local adjustment of light. Also, gate may serve as an emitter, to increase field emission efficiency and its service life. | 01-17-2013 |