Patent application number | Description | Published |
20080206664 | METHOD FOR PRODUCING CORE MATERIAL OF ELECTROPHOTOGRAPHIC FERRITE CARRIER AND RESIN-COATED FERRITE CARRIER - The present invention provides a method for producing a core material of an electrophotographic ferrite carrier, by charging a raw powder with an average particle size of 20 to 50 μm obtained by preparing raw materials for ferrite into a combustion flame along with a carrier gas for the raw powder, thermal-spraying the powder in atmospheric air to ferritize the powder, subsequently rapidly solidifying the thermal-sprayed particle, and sampling and collecting the particle, wherein the method satisfies the conditions comprising the following (1) to (3): (1) a mixture gas of propane and oxygen is used for the combustion flame for the thermal spraying, and a volumetric ratio of the propane to the oxygen is 1:3.5 to 6.0; (2) the carrier gas for the raw powder is air, nitrogen, oxygen or a mixture gas thereof, and the ratio (a/b) of a charged amount (a) of a raw powder (kg/hr) to a charged amount (b) of the carrier gas (kg/hr)for the raw powder is 4.8 or less; and (3) a flame flow velocity of the combustion flame is 65 to 125 m/sec. | 08-28-2008 |
20080241729 | RESIN-COATED FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE RESIN-COATED FERRITE CARRIER - Employed are a resin-coated ferrite carrier for an electrophotographic developer including a ferrite carrier core material having a BET specific surface area of 900 to 5,000 cm | 10-02-2008 |
20090130587 | RESIN-COATED FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, ITS PRODUCTION METHOD, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE RESIN-COATED FERRITE CARRIER - A spherical resin-coated ferrite carrier for an electrophotographic developer which can maintain a stable resistance and chargeability, a favorable charge rising property because of an excellent fluidity, and has a suitable durability, its production method which is excellent in economic efficiency and production stability, and an electrophotographic developer using the resin-coated ferrite carrier, are provided. A resin-coated ferrite carrier for an electrophotographic developer which is a spherical resin-coated ferrite carrier, wherein a carrier core material thereof has an irregular surface to improve the adhesive strength to a resin coat, and wherein the irregularity of the surface takes a finely streaked wrinkle pattern, its production method, and an electrophotographic developer using the resin-coated ferrite carrier, are employed. | 05-21-2009 |
Patent application number | Description | Published |
20130043635 | STAGE HEATER AND METHOD OF MANUFACTURING SHAFT - A stage heater and a method of manufacturing a shaft capable of suppressing heat transfer from a heating substrate toward the shaft. The stage heater includes: a heating substrate made of aluminum or an alloy containing aluminum; and a shaft that is bonded to one surface of the heating substrate and supports the heating substrate. The shaft includes: a pipe made of a metal having a lower heat conductivity than a material of the heating substrate; and a bonding layer formed on a side of the pipe to be bonded to the heating substrate by accelerating a powder material of aluminum or a powder material of an alloy containing aluminum together with a gas and blowing the powder material while being maintained in a solid phase to the pipe so as to deposit thereon. | 02-21-2013 |
20130056187 | TEMPERATURE REGULATOR, COOLING DEVICE, AND METHOD FOR MANUFACTURING TEMPERATURE REGULATOR - A temperature regulator or the like that can circulate a desired thermal medium and efficiently transfer the heat of the thermal medium is provided. The temperature regulator includes a pipe that is made of a metal or alloy with corrosion resistance to a predetermined thermal medium and that serves as a flow path for circulating the thermal medium; and a plate in which the pipe is buried, wherein the plate is formed by accelerating powder made of aluminum (Al) or alloy together with a gas and thereafter spraying the powder remaining in a solid phase toward the pipe so that the powder is deposited on the pipe. | 03-07-2013 |
20130072075 | CONDUCTIVE MEMBER AND METHOD OF MANUFACTURING THE SAME - Provided are a conductive member that is connectable to aluminum metal and can suppress a decrease in electrical conductivity, and a method of manufacturing the same. The conductive member is formed of aluminum or an alloy containing aluminum, and includes an electrical wire connection unit and a fastening unit, which are a base provided with a connection surface to be connected to another member, and a connection layer formed on the base by accelerating a powder of a metal or alloy, which has a lower ionization tendency than the base and has electrical conductivity equal to that of the base or higher, together with gas, and spraying and depositing the powder in the solid state on the connection surface. | 03-21-2013 |