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| 20100295097 | FIELD-EFFECT TRANSISTOR - A field-effect transistor according to the present invention includes a silicon substrate that has a resistivity of not more than 0.02 Ω•cm, a channel layer that is formed on the silicon substrate and has a thickness of at least 5 μm, a barrier layer that is formed on the channel layer and supplies the channel layer with electrons, a two dimensional electron gas layer that is formed by a hetero junction between the channel layer and the barrier layer, a source electrode and a drain electrode that each form an ohmic contact with the barrier layer, and a gate electrode that is formed between the source electrode and the drain electrode, and forms a Schottky barrier junction with the barrier layer. | 11-25-2010 |
| 20110063652 | Image forming device, control method, and program for image forming device - When a control code detection unit detects a control code, an image storage unit stores the image data of pages that are entered after the page with the control code added thereto. A control code decision unit decides the content of control for the output processing of the image data based on all the control codes detected by the control code detection unit. Then, based on the content of control decided by the control code decision unit, a control unit controls the output processing of the image data stored in the image storage unit. | 03-17-2011 |
| 20110233559 | FIELD-EFFECT TRANSISTOR - A field-effect transistor (FET) in which a gate electrode is located between a source electrode formed on one side of the gate electrode and a drain electrode formed on the other side, a source ohmic contact is formed under the source electrode and a drain ohmic contact is formed under the drain electrode. In the FET, the rise in the channel temperature is suppressed, the parasitic capacitance with a substrate is decreased, and the temperature dependence of drain efficiency is reduced, so that highly efficient operation can be achieved at high temperatures. The drain electrode is divided into a plurality of drain sub-electrodes spaced from each other and an insulating region is formed between the drain ohmic contacts formed under the drain sub-electrodes. | 09-29-2011 |
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| 20090130322 | Aqueous Primer Composition and a Process for the Application of the Same - This invention provides an aqueous primer composition which comprises (A) an aqueous dispersion of modified polyolefin which comprises an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (a) having a melting point of 120° C. or lower and a weight average molecular weight of 30,000 to 180,000, dispersed in an aqueous medium, (B) an ionic functional group-containing acrylic resin, and (C) a conductive carbon-containing pigment, and which forms a coating film with an L value of 35 or more and a surface resistivity of 1×10 | 05-21-2009 |
| 20090246547 | Water-Based Primer Composition and Coating Method of Plastic Shaped Articles Using the Composition - This invention provides a water-based primer composition characterized by comprising an aqueous dispersion formed by dispersing unsaturated carboxylic acid- or acid anhydride-modified polyolefin (a) having a melting point of 50-120° C. and a weight-average molecular weight within a range of 30,000-200,000, and unsaturated carboxylic acid- or acid anhydride-modified polyolefin (b) having a melting point of 30-100° C. and a weight-average molecular weight within a range of 30,000-200,000, in an aqueous medium, the melting point of the modified polyolefin (a) being higher than that of the modified polyolefin (b) by at least 10° C. | 10-01-2009 |
| 20100021742 | Water-Based Primer Compositions - This invention provides a water-based primer composition comprising (A) an aqueous dispersion of modified polyolefin, which is prepared by dispersing a modified polyolefin (a) in an aqueous medium, the polyolefin (a) being produced by modifying an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (i) having a melting point not higher than 120° C. and an weight-average molecular weight within a range of 30,000-200,000, further with a compound having polyoxyalkylene chain; (B) at least one kind of aqueous resin selected from aqueous urethane resin, aqueous acrylic resin and aqueous polyester resin; and (C) pigment; the solid weight ratio of the component (A)/component (B) being within a range of 20/80-85/15, and containing the component (C) in an amount within a range of 0.5-200 parts by weight per 100 parts by weight of the total solid resin content of the composition. Use of the water-based primer composition enables to form coating film excelling in water resistance, humidity resistance, gasohol resistance and the like. | 01-28-2010 |
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| 20110064432 | DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A disclosed developing device includes a toner carrying member having electrodes, a toner supply unit supplying the toner to the toner carrying member, and a hopping electric field generator unit generating electric field to cause the toner hopping on the toner carrying member by applying a pulse voltage to the electrodes. The hopping electric field generator unit includes a pulse voltage generator circuit generating the pulse voltage, a first direct-current power source supplying bias to the pulse voltage generator circuit for regulating a peak value of the pulse voltage, and a second direct-current power source having a same polarity with a toner charging polarity, and outputting a variable voltage level. The hopping electric field generator unit controls the peak value of the pulse voltage by changing an output of the first power source and a mean thereof by changing an output of the second power source. | 03-17-2011 |
| 20110164892 | DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE FORMING APPARATUS INCORPORATING SAME - A development device includes a developer container, a rotary developer carrier that is disposed facing the latent image carrier and including multiple outer electrodes arranged in a circumferential direction of the developer carrier, an inner electrode electrically insulated from the multiple outer electrodes, an insulation layer disposed between the inner and outer electrodes, and a surface layer overlaying the outer electrodes and electrically insulating the multiple outer electrodes from each other, a bias power source to generate electrical fields that change with time by applying a first and second bias voltages to the inner and outer electrodes, respectively, an electrical field adjuster to regulate the electrical fields in accordance with a thickness of the surface layer of the developer carrier, and a controller. | 07-07-2011 |
| 20110182626 | DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE FORMING APPARATUS INCORPORATING SAME - A development device includes a toner carrier including first and second groups of electrodes, a toner supplier, and an electrical field generator to generate an electrical field for causing toner to hop along the surface of the toner carrier. The electrical field generator includes a positive-phase pulse voltage generation circuit, a negative-phase pulse voltage generation circuit, a first DC power source for supplying a bias for setting a peak value of pulse voltages, a second DC power source to output a variable voltage having a polarity identical to a polarity of toner charge, a first diode having an anode and a cathode connected to a lower potential side of the positive-phase pulse voltage generation circuit and an output terminal thereof, and a second diode having an anode and a cathode connected to the lower potential side of the positive-phase pulse voltage generation circuit and an output terminal thereof. | 07-28-2011 |
| 20110229232 | LUBRICANT APPLYING DEVICE, IMAGE FORMING APPARATUS, PROCESS UNIT, AND SOLID LUBRICANT - A lubricant applying device includes: a solid lubricant; an applying member that applies lubricant powder scraped off from the solid lubricant to an application target; a holding member that holds the solid lubricant; a biasing unit that biases the holding member to bring the solid lubricant on the holding member into contact with the applying member; and a regulating unit that regulates, when a force of a direction orthogonal to an endless movement direction of the applying member is applied from the applying member to the solid lubricant at a frictional surface therebetween, movement of the solid lubricant and the holding member in the orthogonal direction. | 09-22-2011 |
| 20120057891 | IMAGE FORMING APPARATUS - An image forming apparatus includes a latent image carrier; a latent image writer to write a latent image on the latent image carrier; a developing unit including a toner carrier having first and second electrodes insulated via an insulator member and a voltage applying unit to apply voltages to the first and second electrodes having a potential difference to generate first electric fields to cause the toner to hop from the toner carrier to the latent image carrier to develop a toner image; and a transfer unit to transfer the developed toner image to a transferring member. When alternating voltages having a same phase and same amplitude are applied to the first and second electrodes to form second electric fields between the latent image carrier and the toner carrier, the toner is discharged from the toner carrier to the latent image carrier in a toner discharge mode. | 03-08-2012 |
