A material comprising aerogel particles and a polytetrafluoroethylene (PTFE) binder is formed having a thermal conductivity of less than or equal to 25 mW/m K at atmospheric conditions. The material is moldable or formable, having little or no shedding of filler particles, and may be formed into structures such as tapes or composites, for example, by bonding the material between two outer layers. Advantageously, composites may be flexed, stretched, or bent without significant dusting or loss of insulating properties.

Aerogel/ptfe composite insulating material

PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material and a refrigerator capable of securing reliability by reducing time degradation of heat insulating performance when the vacuum heat insulating material is used in a housing, with respect to the vacuum heat insulating material and the refrigerator using the same. SOLUTION: In this refrigerator wherein the vacuum heat insulating material 30 having a core material 31 composed of a fiber material laminated body, an outer wrapping material covering the core material 31 and composed of a plurality of layers, and an adsorbing material mounted inside of the outer wrapping material, is attached to one of an outer plate 11 and an inner plate 12 between the outer plate 11 and the inner plate 12 of a heat insulating housing to form a heat insulating part with urethane foam mounted between the outer plate 11 and the inner plate 12, the outer wrapping material has a plurality of deposited layers formed by metal deposition on a base material composed of resin in such a state that the plurality of deposited layers are overlapped and stacked to be oppositely kept into contact with each other. COPYRIGHT: (C)2006,JPO&NCIPI

Vacuum heat insulating material and refrigerator using the same

A method for forming strained Si or SiGe on relaxed SiGe on insulator (SGOI) or a SiGe on Si heterostructure is described incorporating growing epitaxial Si1-yGey layers on a semiconductor substrate, smoothing surfaces by Chemo-Mechanical Polishing, bonding two substrates together via thermal treatments and transferring the SiGe layer from one substrate to the other via highly selective etching using SiGe itself as the etch-stop. The transferred SiGe layer may have its upper surface smoothed by CMP for epitaxial deposition of relaxed Si1-yGey, and strained Si1-yGey depending upon composition, strained Si, strained SiC, strained Ge, strained GeC, and strained Si1-yGeyC or a heavily doped layer to make electrical contacts for the SiGe/Si heterojunction diodes.

LAYER TRANSFER OF LOW DEFECT SiGe USING AN ETCH-BACK PROCESS

PROBLEM TO BE SOLVED: To improve heating insulating performance and planarity in a vacuum heat insulating material covering a plurality of core materials by a covering material having gas barrier performance, and positioning each core material in an independent vacuum space. SOLUTION: In the vacuum heat insulating material 5, the plurality of core materials 6 is covered by the covering material 7 with gas barrier performance, having a heat welding layer on an inner side face, and decompressed and sealed therein, and each of the plurality of core materials 6 is positioned in the mutually independent vacuum space. Since recessed parts of a recessed and projecting face formed by a core material part having the core material 6 between the covering materials 7, and a non-core material part 8 not having the core materials 6 between the covering materials 7 are filled with a heat insulating material 9, heat insulating performance in the recessed part (the non core material part 8) of the recessed and projecting face, and unevenness of a vacuum heat insulating material 5 surface are improved, heat insulating performance as the whole vacuum heat insulating material 5 is also improved, and the vacuum heat insulating material 5 with superior applicability can be provided. COPYRIGHT: (C)2007,JPO&INPIT

Vacuum heat insulating material

A fuel cell system includes an ECU that sets the fuel cell stack to a state of idling stop by lowering both a revolution speed of an air pump and a discharge current value of the fuel cell stack to less than during idling power generation within a range larger than 0, in response to a predetermined idling stop initiation condition having been satisfied during idling power generation. The ECU decreases the discharge current value further as the lowest cell voltage value CV_low of the fuel cell stack decreases so that the lowest cell voltage value CV_low does not fall below a cancellation threshold B, with an event of the lowest cell voltage CV_low of the fuel cell stack having fallen below the cancellation threshold B as a cancellation condition of idling stop.

Fuel cell system and control method thereof

PROBLEM TO BE SOLVED: To prevent cracks in an evaporation layer even at a high temperature and heighten heat insulation performance by using a plastic film having a specified glass transition temperature as a support layer for supporting the evaporation layer where metal or a metal ozide is deposited. SOLUTION: This vacuum heat insulating material is formed by packing a heat insulating core material 5 made of silica powder with a packing material. The packing material used is a laminated film formed by an evaporation layer 2 formed by depositing metal or metal oxide on the upper surface of the support layer 3, a protective layer l for protecting the surface of the evaporation layer 2, and a thermal deposition layer 4. The support layer 3 uses a plastic film having a glass transition temperature of 88 deg.C or more. For example, two kinds of resins, polyphenylene sulfide resin 25 μm thick and polyethylene naphthalate resin. The glass transition temperature of the polyphenylene sulfide resin is 87 deg.C, and the glass transition temperature of the polyethylene naphthalate resin is 121 deg.C.

PURPOSE:To enable to efficiently dissolve heat storage material during heating by a structure wherein heating is performed by providing heating sources, one of which covers the bottom surface and the other of which is vertical to the bottom surface, at the lower part of the heat storage device in a latent heat type heat accumulator, which stores and releases heat by means of phase change. CONSTITUTION:The heat storage device A consists of the heat accumulator 1, the heat storage material 2, a heat exchanger 13 for heating and a radiator 4 for taking-out heat. The heat exchanger 131 for heating, which covers the whole bottom surface 6, and the heat exchanger 132 for heating, which is vertical to the bottom surface 6, integrally constitute the heat exchanger 13 for heating. During the initial stage of dissolution of the heat storage material, the heat storage material 12 is dissolved at the central portion of the heat accumulator 1 by means of the heat exchanger 132 for heating on a form so as to pierce the heat accumulator 1, resulting in leaving undissolved heat storage material 22 on the upper wall surface in the heat accumulator 1. The undissolved heat storage material 22 is dissolved by obtaining heat from dissolved heat storage material 12 lying in the bottom and the central portions of the heat accumulator 1 and developing the convection of the dissolved heat storage material throughout the whole portion of the heat accumulator 1.

Heat storage device

PROBLEM TO BE SOLVED: To solidify a highly efficient heat-insulating material exhibiting thermal conductivity equal to or lower than static air by a binder without deteriorating the heat-insulating property. SOLUTION: The heat-insulating material is produced by solidifying silica secondary particles 3 of an element heat-insulating material exhibiting the thermal conductivity equal to or lower than the static air with the usage of 10% to 30% of the binder 5. Thus, the heat-insulating material capable of being easily handled and exhibiting the high heat-insulating property, the solidifying method thereof and the apparatus with the usage of it can be provided. COPYRIGHT: (C)2003,JPO

Heat-insulating material, solidifying method therefor and apparatus using it

PROBLEM TO BE SOLVED: To provide a fuel cell system capable of improving durability, and a control method of the same. SOLUTION: The fuel cell is composed of fuel electrodes 2, 3 arranged at one side of an electrolyte, and air electrodes 4, 5 arranged at the other side of the electrolyte. In stopped state or preserved state, the potential of either the fuel electrodes 2, 3 or the air electrodes 4, 5 is controlled into a potential preventing the deterioration of the fuel electrodes 2, 3, or the air electrodes 4, 5. COPYRIGHT: (C)2005,JPO&NCIPI

Fuel cell system, and control method of fuel cell

PROBLEM TO BE SOLVED: To elute a concd. mineral into water by arranging an eluate contg. a mineral in an electrolytic cell having an anode and a cathode, storing water in the cell or allowing water to flow in the cell and impressing a DC voltage between the electrodes. SOLUTION: A mineral eluate 4 of coral sand contg. calcium and magnesium is arranged at the bottom in an electrolytic cell 1, water 5 is stored in the cell 1, a DC voltage 6 is impressed between an anode 2 and a cathode 3, hence the current flows toward the cathode 3 from the anode 2, and the electron flows to the anode 2 from the cathode 3. The electron is taken by the anode 2 to generate oxygen and hydrogen ion (4H2 O→4H +2O2 +4e ) in the vicinity of the anode 2, and the water 5 is acidified around the anode 2. The generated hydrogen ion reacts with the calcium caronate in the eluate 4 (CaCO3 +2 H →Ca +H2 O+CO2 ), and the mineral component such as calcium is dissolved in the cell 1.

隆行浦田

Papers

Vacuum heat insulating material

Heat storage device

Heat-insulating material, solidifying method therefor and apparatus using it

Fuel cell system, and control method of fuel cell

Mineral eluting device

隆行 浦田

Papers

Vacuum heat insulating material

Heat storage device

Heat-insulating material, solidifying method therefor and apparatus using it

Fuel cell system, and control method of fuel cell

Mineral eluting device

隆行浦田