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Arasawa
Nobuyuki Arasawa, Hachioji JP
| Patent application number | Description | Published |
|---|---|---|
| 20090014708 | SEMICONDUCTOR DEVICE - A nonvolatile, sophisticated semiconductor device with a small surface area and a simple structure capable of switching connections between three or more electrodes. In a semiconductor device at least one of the electrodes contains atoms such as copper or silver in the solid electrolyte capable of easily moving within the solid electrolyte, and those electrodes face each other and applying a voltage switches the voltage on and off by generating or annihilating the conductive path between the electrodes. Moreover applying a voltage to a separate third electrode can annihilate the conductive path formed between two electrodes without applying a voltage to the two electrode joined by the conductive path. | 01-15-2009 |
Shinichi Arasawa, Osaka JP
| Patent application number | Description | Published |
|---|---|---|
| 20110052255 | Process cartridge and image forming apparatus - A process cartridge collectively accommodates at least a latent image carrier and a developer carrier carrying tonner for visualizing an electrostatic latent image formed on the latent image carrier and includes a side plate unit rotatably supporting the latent image carrier and the developer carrier. The side plate includes a bearing that rotatably supports a rotation shaft of the developer carrier; an elastic body that pushes the bearing against a rotation shaft of the latent image carrier; and a guiding unit that guides the bearing in a direction of the pushing. The guiding unit includes an abrasion preventing structure at a wall surface of the guiding unit that comes in contact with the bearing. | 03-03-2011 |
| 20110052256 | Image forming apparatus - A protruding portion that protrudes further toward a process cartridge than a contact portion coming in contact with a recording medium is provided at a contact terminal. A slide contact surface portion of the process cartridge is in a state of being in sliding contact with the protruding portion of the contact terminal by action of inserting the process cartridge, and the protruding portion is pressed in a direction being apart from the recording medium to limit contact between the contact terminal and the recording medium. The protruding portion fits in a fitting concave portion at a predetermined mounted position to make the contact terminal come in contact with the recording medium. The protruding portion is pulled out from the fitting concave portion by action of taking out the process cartridge to be in sliding contact with the slide contact surface portion. | 03-03-2011 |
Takeshi Arasawa, Gunma JP
| Patent application number | Description | Published |
|---|---|---|
| 20100258400 | ELECTROMAGNETIC CLUTCH - Provided is an electromagnetic clutch, in which a plurality of magnetic flux shielding slits extending in the axial direction and arcuately in the circumferential direction are formed individually in a rotor and an armature, and in which the magnetic flux by the excitation of a coil inserted on the anti-armature side of the rotor is passed from the non-slit portion of the rotor to the non-slit portion of the armature and from the non-slit portion of the armature to the non-slit portion of the rotor, so that a magnetic attraction is generated to bring two frictional faces into press contact with each other and so that the two frictional faces are separated by the demagnetization of the coil. The slits of at least one of the rotor and the armature are formed to change in such a taper shape that the slit width at the frictional face side may be smaller than that at the anti-frictional face side. Without inviting any drastic cost increase, the mutual press-contact force of the frictional faces can be enhanced so that a higher torque transmission may be possible with the same size as that of the conventional structure. | 10-14-2010 |