Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Atsushi Ohta

Atsushi Ohta, Tokyo JP

Patent application numberDescriptionPublished
20090324284DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS - A development device includes a plurality of development units and a waste substance container or containers storing the waste substance removed by the cleaning member. Each of the plural development units includes an image carrier carrying a developer image formed by developer and a cleaning member cleaning the image carrier by removing a waste substance. A number of the waste substance containers disposed is smaller than a number of development units disposed, and the number of the waste substance containers is greater than or equal to one.12-31-2009
20100189469Developer storing container, developing device and image forming apparatus - A developer storing container includes a developer storing portion having a developer outlet opening at a substantially longitudinal center portion, and an agitation member rotatable about a rotation axis to thereby agitate and eject the developer via the developer outlet opening. The agitation member includes a mounting portion with a mounting surface along the rotation axis, and an elongated flexible member having first and second ends. The flexible member is mounted to the mounting portion at the first end so that the second end defines a sliding end portion at which the flexible member slides in a sliding direction. Both longitudinal end portions of the sliding end portion of the flexible member slide along the inner surface of the developer storing container, ahead of a substantially longitudinal center portion of the sliding end portion in the sliding direction, and are inclined with respect to a direction perpendicular to the sliding direction.07-29-2010
20100247160Developer storing body, image forming unit and image forming apparatus - A developer storing body is detachably attached to an image forming unit main body of an image forming unit. The developer storing body includes a cartridge main body for storing a developer. The cartridge main body has a developer outlet opening through which the developer is ejected. The developer storing body includes an outlet shutter member movable with respect to the cartridge main body so as to open and close the developer outlet opening. A movable direction of the outlet shutter member is substantially the same as a direction in which the developer storing body is attached to or detached from the image forming unit main body.09-30-2010
20110052273IMAGE FORMING DEVICE AND DEVELOPING DEVICE - A developing device that is provided in an image forming device that forms an image includes an image carrier on which an electrostatic latent image is formed; a developer carrier that forms a developer image on a surface of the image carrier by attaching a developer on the electrostatic latent image; a supplying member that supplies the developer to the developer carrier by contacting the developer carrier, and that scrapes the developer remaining on the surface of the developer carrier from the developer carrier, and a deformation amount between the developer carrier and the supplying member is individually configured corresponding to a location where the developing device is provided in the image forming device.03-03-2011
20110103857Developer storage apparatus, developer cartridge, developing device and image forming apparatus - A developer storage apparatus includes a developer receiving opening for receiving a developer, a developer conveying unit disposed below the developer receiving opening and having a first conveying member that conveys the developer in a conveying direction, a developer detection unit for detecting the developer, and a wall surface portion provided on a downstream side of the developer detection unit in the conveying direction.05-05-2011
20110129252IMAGE FORMING APPARATUS - An image forming apparatus includes an image forming apparatus main body, and a replaceable part detachably attached to the image forming apparatus main body and movable in attaching-and-detaching direction to be attached to or detached from the image forming apparatus main body. The replaceable part includes a storage portion, the storage portion including a memory for storing information of the replaceable part and/or the image forming apparatus main body, and a first contact portion electrically connected to the memory. The image forming apparatus main body includes a second contact portion that electrically contacts the first contact portion. The first contact portion has an inclination at a predetermined angle with respect to the attaching-and-detaching direction.06-02-2011

Patent applications by Atsushi Ohta, Tokyo JP

Atsushi Ohta, Chiba-Shi JP

Patent application numberDescriptionPublished
20100239195Fluid dynamic bearing, motor, and recording-medium driving apparatus - A thinner fluid dynamic bearing capable of stable shaft rotation, a motor including the bearing, and a recording-medium driving apparatus including the bearing are provided. Pressure-generating grooves are provided in thrust surfaces of a thrust bearing portion 09-23-2010
20110068650Fluid dynamic bearing motor, and recording-medium driving apparatus - A fluid dynamic bearing includes a shaft member engaged with a circular plate extending radially outward therefrom; a support including a cylinder rotatably accommodating the shaft member, an outer surface of the support having a tapered portion toward an axial upper surface thereof opposing the circular plate; a stopper, an inner surface of the stopper having a constant diameter in an axial direction in a portion opposite to the tapered portion of the support so as to form a tapered gap with respect to an outer surface of the support located under the axial upper surface of the support; and a working fluid placed between the inner surface of the stopper and the outer surface of the support.03-24-2011

Patent applications by Atsushi Ohta, Chiba-Shi JP

Atsushi Ohta, Kashiwa-Shi JP

Patent application numberDescriptionPublished
20100286505Irradiating Coil And Magnetic Resonance Imaging Apparatus Using The Same - An irradiating coil includes a first ring conductor located on a plane, a second ring conductor having a smaller diameter than a diameter of the first ring conductor and located substantially on the plane of the first ring conductor, a plurality of first line conductors connected the first ring conductor and to the second ring conductor, and an arrangement for making uniform a radio-frequency-pulse that is transmitted by the irradiating coil. The pulse uniforming arrangement includes a diverger which diverges a current flow of the first line conductors.11-11-2010

Atsushi Ohta, Yamagata JP

Patent application numberDescriptionPublished
20100243825TENSION BALANCER - A tension balancer which includes an axis body including a latch part, a column shaped main body including a bottom part which has at least two first through holes arranged at equal intervals in a concentric circle from the center, and an open upper part, a spring base housed within the Main body and having an aperture for joining an end of the axis body to the center, and at least two second holes arranged at equal intervals in a concentric circle from the center, an upper lid having an aperture for pushing through the main body of the axis body to the center, and at last two second through holes arranged at equal intervals in a concentric circle from the center, the upper lid being screwed to the main body by a bold and nut which passes through the first, second and third through holes, and at least two or more spring unit groups sandwiched between the spring base which is housed within the main body and the upper lid.09-30-2010

Atsushi Ohta, Sammu-Shi JP

Patent application numberDescriptionPublished
20100141878METHOD FOR PRODUCING COLOR FILTER, COLOR FILTER, LIQUID CRYSTAL DISPLAY DEVICE AND PRODUCING APPARATUS - Exfoliation of an etching stopper is prevented. A color filter of the present invention includes an inorganic protection film (etching stopper) composed mainly of SnO06-10-2010

Atsushi Ohta, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090032843SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A semiconductor device includes a semiconductor substrate, and a MIS type FET provided on the semiconductor substrate, the MIS type FET includes a gate insulating film provide on the semiconductor substrate, a gate electrode provided on the gate insulating film, a channel region provided in the semiconductor substrate and being isolated from the gate electrode by the gate insulating film, source/drain layers sandwiching the channel region, the source/drain layers including semiconductor layers having lattice spacing which is different from that of the semiconductor substrate and having uniform height, and a metal silicide layer provided on a region including a top surfaces of the source/drain layers and failing to provide on the channel region.02-05-2009
20100065917SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A semiconductor device having a double-gate structure has: a first fin layer; a first epitaxial growth layer formed on a surface of the first fin layer, and constituting a first source/drain diffusion layer, and containing the n-type impurity; a second fin layer; a second epitaxial growth layer formed on a surface of the second fin layer, constituting a second source/drain diffusion layer, and containing the p-type impurity; and a first isolation insulating film formed between the first epitaxial growth layer and the second epitaxial growth layer.03-18-2010

Atsushi Ohta, Osaka JP

Patent application numberDescriptionPublished
20080309596Display Control Device, Display Control Method, and Display Control Program - An object of the invention is to display different types of information without limiting the amount of information that can be displayed.12-18-2008

Atsushi Ohta, Kanagawa JP

Patent application numberDescriptionPublished
20110194517Wireless Packet Communication Method - When a transmission rate of each of lines that transmit data simultaneously between two STAs by using a plurality of radio channels and/or MIMO can be set independently, one data frame is fragmented in accordance with the transmission rates of the respective lines so as to generate a plurality of data packets having the same packet time length and data sizes equal to or smaller than a maximum data size. Those data packets are transmitted simultaneously by using a plurality of radio channels, or one radio channel and MIMO, or a plurality of radio channels and MIMO.08-11-2011
20110216728Wireless Packet Communication Method and Wireless Packet Communication Apparatus - In retransmission processing due to a failure of transmission of data packets, a plurality of data packets are simultaneously transmitted between two STAs by utilizing multiple wireless channels and MIMO, and the number of idle channels and the number of retransmission packets are compared. Then, when both of the numbers are different or only when the number of idle channels is larger than the number of retransmission packets, the retransmission packets are reconstructed according to the number of idle channels, and the reconstructed retransmission packets are simultaneously transmitted by using the idle channels.09-08-2011

Atsushi Ohta, Shibata-Gun JP

Patent application numberDescriptionPublished
20110261330Substrate conveyance device and substrate conveyance method, exposure apparatus and exposure apparatus and exposure method, device manufacturing method - A lithographic projection apparatus includes a substrate table configured to hold a substrate, a projection system arranged to project a patterned beam of radiation onto the substrate, a liquid supply system configured to supply liquid to a space between the projection system and the substrate, and a residual liquid detector configured to detect liquid remaining on the substrate and/or the substrate table after an exposure is completed. A device manufacturing method includes projecting, using a projection system of a lithographic apparatus, a patterned beam of radiation through a liquid onto a substrate, the substrate being held by a substrate table, and, after the projecting is complete, detecting residual liquid on the substrate and/or the substrate table.10-27-2011