Patent application number | Description | Published |
20090239129 | METAL SEPARATOR FOR FUEL CELL - A metal separator for a fuel cell includes a plurality of flow passage grooves for flowing a fluid for operating the fuel cell; manifold holes provided on each side of an upper stream and a lower stream of the plurality of flow passage grooves and formed so as to penetrate a separator made of metal for the fuel cell; communication grooves formed on a separator surface of the separator, for connecting inlets/outlets of the plurality of flow passage grooves and the manifold holes to flow the fluid; a fluid flowing structure part made of metal, in which a through hole is formed on the separator surface that forms the communication grooves, formed in the vicinity of the manifold hole so as to traverse the communication groove; and a flat seal surface formed on the fluid flowing structure part, for sealing a surface of a member that shields an opening of the communication grooves in a state of a face contact. | 09-24-2009 |
20090263678 | METAL MATERIAL WITH ELECTRIC CONTACT LAYER AND MANUFACTURING METHOD OF THE SAME - A metal material with electric contact layer includes a metal base made of metal containing chromium; an adhesive layer formed on a surface of the metal base, mainly containing chromium and having a thickness of 5 nm or more and 200 nm or less; and an electric contact layer formed on the surface of the adhesive layer, made of noble metal or an alloy of the noble metal, and having a thickness of 1 nm or more and 20 nm or less. | 10-22-2009 |
20090311577 | CORROSION-RESISTANT MATERIAL AND MANUFACTURING METHOD OF THE SAME - A corrosion-resistant material of the present invention includes a substrate with at least one surface made of aluminum or an aluminum alloy; a corrosion-resistant coating layer for coating the one surface of the substrate; and a corrosion-resistant sealing material made of hydrated aluminum oxide generated in fine pores, being a defect that occurs in the corrosion-resistant coating layer, to thereby seal the fine pores. | 12-17-2009 |
20100143707 | SURFACE-TREATED METAL SUBSTRATE AND MANUFACTURING METHOD OF THE SAME - A surface-treated metal substrate of the present invention comprises: an adhesive layer formed of a sputtering film directly adhered to a passivation film of a metal substrate, with this adhesive layer having an internal residual stress of a compression stress or a zero stress; and a bonding layer formed of a sputtering film mainly composed of any one of copper (Cu), a mixture state of copper and nickel (Cu—Ni), a mixture state of copper and zinc (Cu—Zn), and a mixture state of copper, nickel, and zinc (Cu—Ni—Zn), on the surface of the metal substrate having the passivation film on an outermost, in an order from a surface side of the metal substrate. | 06-10-2010 |
20100224351 | HEAT EXCHANGER - A heat exchanger is provide, in which a fin member and a tube member are joined each other, wherein the fin member includes a solder wetting film layer containing copper, in at least a part of a surface of a fin substrate made of aluminum or an alloy mainly composed of aluminum, where the fin member and the tube member are joined each other, and the tube member includes a solder film layer made of solder containing tin, in at least a part of a surface of a tube substrate made of copper or an alloy mainly composed of copper, where the tube member and the fin member are joined each other, wherein the fin member and the tube member are joined each other, through a diffusion bonding of a copper component of the solder wetting film layer and a tin component of the solder film layer. | 09-09-2010 |
Patent application number | Description | Published |
20090081520 | METAL SEPARATOR FOR FUEL CELLS AND FABRICATING METHOD THEREOF - A metal separator for fuel cells formed with a metal plate and provided between cells accumulated, in which the metal plate is formed like trapezoidal irregularities to separate channels for a fuel gas from ones for an oxidant gas. Slope portions are formed after forming uniformly and thinly wall thickness of both upper and lower flat portions or either of the upper or the lower flat portion to 90% or less of that of the metal plate to be formed to obtain trapezoidal irregularities by forming flat portions which contact upper and lower cells and slope portions which interconnect the upper and the lower flat portions. | 03-26-2009 |
20090081522 | Metal composite for fuel cell and fuel cell bipolar plate using same, and fabrication method for same - A metal composite for fuel cells according to the present invention, which includes: a core of a metal; cladded layers of a corrosion resistant metal covering both surfaces of the core; and a through-hole formed through the core and cladded layers. The through-hole has, on a hole wall of the core region of the through-hole, a concave portion which is recessed relative to hole walls of the cladded layer regions of the through-hole. | 03-26-2009 |
20090092878 | CURRENT-COLLECTING COMPOSITE PLATE FOR FUEL CELL AND FUEL CELL FABRICATED USING SAME - A current-collecting composite plate for a fuel cell configured with unit cells according to the present invention, which comprises: an insulator layer; and a plurality of pairs of conductor layers, the conductor layers being bonded to the insulator layer to be spaced apart from each other by a predetermined distance, each pair being used for adjacently disposed anode and cathode electrodes for a different one of the unit cells by sandwiching an electrolyte assembly therebetween. And, each conductor layer includes: a first conductor layer of a corrosion resistant metal treated with an electrically conductive surface treatment; a second conductor layer of a metal with low electrical resistivity; a through-hole penetrating the first conductor layer and the insulator layer; and a connecting portion formed of the second conductor layer for connecting the unit cells. | 04-09-2009 |
20090297841 | Composite material with electric contact layer, and method of making the same - A composite material with an electric contact layer includes a metal substrate, an adhesion layer formed-on a surface of the metal substrate, including an alloy including palladium (Pd) and a Y group metal as a main component selected from titanium (Ti), niobium (Nb), tantalum (Ta) and zirconium (Zr), and having an average thickness of not less than 5 nm and not more than 100 nm, and the electric contact layer formed on a surface of the adhesion layer, including a noble metal selected from gold (Au), platinum (Pt), rhodium (Rh), iridium (Ir) and silver (Ag), and having an average thickness of not less than 1 nm and not more than 20 nm. | 12-03-2009 |
20090297918 | Board material for fuel cell metallic separator, method of making same, and fuel cell metallic separator - A board material for a fuel cell metallic separator includes a metallic substrate, an intermediate layer formed on a surface of the metallic substrate, and including titanium (Ti), and a Au layer formed on a surface of the intermediate layer, including pure gold (Au), and having an average thickness of not less than 1 nm and not more than 9 nm. A fuel cell metallic separator includes the board material that includes a concavo-convex shape. | 12-03-2009 |
20100136366 | Tin-coated aluminum material - A tin-coated aluminum material includes a base material including aluminum or aluminum alloy, and an anti-corrosion layer and an electrical contact layer formed on an outer layer of the base material, the electrical contact layer including tin or tin alloy. The anti-corrosion layer includes a metal selected from titanium, chromium and niobium or an alloy including the selected metal as a main component. The tin-coated aluminum material may further include a bonding layer including aluminum or aluminum alloy formed between the base material and the anti-corrosion layer. The tin-coated aluminum material may further include aluminum oxide formed at an interfacial region between the base material and the anti-corrosion layer or between the base material and the bonding layer. The aluminum oxide at the interfacial region has a peak value of not less than 0.18 and not more than 0.8 in an abundance ratio of aluminum oxide=(aluminum oxide)/(aluminum+oxygen+the main component of the anti-corrosion layer+tin) where a resolution width is 2 nm for a quantitative analysis in a depth direction in an X-ray photoelectron spectroscopy or Auger electron spectroscopy. | 06-03-2010 |
20120190555 | CONSTRUCTION OF SUPERCONDUCTING MULTI-CORE BILLET AND METHOD FOR MANUFACTURING SUPERCONDUCTING MULTI-CORE WIRES - A physical construction of a superconducting multi-core billet is provided together with a method for manufacturing a superconducting multi-core wire to offer reduction of manufacturing time (cost) and low frequency of occurrence of wire break during diameter-reduction drawing. The superconducting multi-core billet by the present invention has such a construction that a plurality of vertical holes are made in a billet | 07-26-2012 |