Patents Assigned to Sharp
  • Patent number: 7767374
    Abstract: An method for producing an electrophotographic proreceptor includes a first coating step of applying a coating liquid containing a sublimable antioxidant and a photoconductive substance, onto a conductive substrate to form a first coating film thereon, a first drying step of drying the formed first coating film by heating to form a first photosensitive layer, a second coating step of applying the coating liquid used in the first coating step, onto the first photosensitive layer to form a second coating film, and a second drying step of drying the formed second coating film by heating to form a second photosensitive layer. In the second drying step, the drying condition is made to differ from the drying condition in the first drying step so that a degree of sublimation of the antioxidant in the second drying step is lower than that of sublimation of the antioxidant in the first drying step.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akiko Kihara, Rikiya Matsuo
  • Patent number: 7769309
    Abstract: An image forming apparatus is provided having a mechanism that toner density of a toner image is automatically adjusted based on a toner patch. In an image forming apparatus including a document conveying section, a document reading section, an image forming section, a sheet discharging section, a sheet feeding section, a patch density detecting section, and a toner density adjusting section for adjusting density of a toner image depending on a result detected by the patch density detecting section, there are further provided a patch forming section for forming a toner patch, an operation detecting section for detecting an operating state of the patch density detecting section, and a patch printing section for printing the toner patch in response to such a result detected by the operation detecting section that the patch density detecting section does not properly operate, thereby adjusting the toner density based on the patch image.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shoji Tomita, Toru Yosioka, Shuhichi Morikuni, Tsutomu Nagata, Takashi Hirota
  • Patent number: 7769313
    Abstract: A charging device includes a rotatable screw gear, a motor, a support, and a protruding member. The screw gear is positioned along length of a linear electrode. The motor rotates the screw gear in forward and reverse directions. The support holds the cleaning member mounted so as to be in contact with the electrode, and is mounted unrotatably but reciprocably between a first end and a second end of the electrode. The member extends perpendicular to the length of the electrode from the support, and has a projection for being elastically fitted into a thread groove of the screw gear along a radial direction of the screw gear. The member is configured in such a manner that a distance between a starting point of elastic deformation of the member and a contact point between the projection and a thread of the screw gear differs according to whether the support is moved forward or backward.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiro Matsuyama, Toshiki Takiguchi, Hirokazu Yamauchi, Hiroyuki Murai
  • Patent number: 7770022
    Abstract: A method for securing an imaging job is disclosed. An access control function relating to a document is performed. An auditing function relating to the document is also performed. An imaging job from the document is then generated. Content of the imaging job is encrypted such that a downstream non-content dependent process will still properly process the imaging job. After encryption, a recipient decrypts the encrypted content. Non-destructible information is encoded into the imaging output. Residual data that relates to the imaging job is erased.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: August 3, 2010
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Andrew R. Ferlitsch, Roy K. Chrisop
  • Patent number: 7767476
    Abstract: In the manufacturing method of the array substrate, an under layer having a surface with irregular irregularities is formed on a substrate, a metal film with irregularities profiling the surface of the under layer is formed on the under layer, a colored resist layer is formed on the metal film, the colored resist layer is patterned to form a regularly arranged colored resist pattern, an optical inspection is performed to optically detect a defect of the colored resist pattern, a defect of the colored resist pattern detected by the optical inspection is repaired; and the metal film is etched while using the resist pattern as a mask.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Mitsuaki Sugine
  • Patent number: 7769312
    Abstract: One embodiment of the present invention is provided with an image information storage unit, an image information processing unit, an actual image forming unit, an image information control unit that controls transfer of image information between each of the units, a power supply control unit, a cost information management unit that holds basic cost information prescribing power costs dependent on a usage time and calculates unit cost information, and an image processing time management unit that calculates a processing time required for image output jobs, wherein the image information control unit sets the execution timings of the image output jobs based on the basic cost information so that a total of image output costs of the image output jobs stored in the image information storage unit is lowest.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shinya Higashi
  • Patent number: 7769311
    Abstract: An image forming apparatus and an image forming method are provided which form high-quality fixed images having no fogs and the like defects, in which apparatus and method a toner entering a pressure-contact area between rollers is prevented from scattering. A control is performed on preheating conditions for preheating an unfixed toner image on a recording medium, which unfixed toner image indicates a toner image transferred but not yet fixed, and a control is further performed such that an amount of toner attached to the recording medium at a coverage rate of 100% is 0.4 mg/cm2 or less, with the result that the toner is prevented from scattering when the recording medium carrying the unfixed toner image passes through a pressure-contact area formed between a heating roller and a pressurizing roller in a fixing step.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoritaka Tsubaki
  • Patent number: 7769327
    Abstract: A developing device includes a developing roller and a blade. The developing roller includes: a developing sleeve which rotates while holding two-component developer composed of toner and magnetic carrier on the outer surface having a plurality of grooves extending in parallel to an axis of the rotation; and a magnetic member, provided inside the developing sleeve in such a manner as to be unrotatable, for attracting the two-component developer onto the outer surface of the developing sleeve. The blade is provided outside the rotating sleeve with a gap from the outer surface of the developing sleeve for scraping off a part of the two-component developer on the outer surface of the developing sleeve. Also, the magnetic member includes a magnet for controlling magnetic flux density in the gap to range from 70 mT to 150 mT. This allows preventing image degradation caused by generation of development memory.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kiyofumi Morimoto, Kohichi Takenouchi, Mitsuru Tokuyama, Hiroo Naoi, Kazuma Hinoue
  • Patent number: 7768136
    Abstract: A semiconductor device such as a COF or the like is provided on a semiconductor chip on a film-like shaped flexile wiring substrate on which a wiring pattern is formed. Between the semiconductor chip and the flexile wiring substrate, a sealing resin is filled for protecting the semiconductor chip. In the semiconductor device, a resin trace is 0.1 to 1.0 mm in width and 10 ?m in thickness, the resin trace being formed when applying the sealing resin along a longitudinal side of the semiconductor chip.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiko Fukuta, Kenji Toyosawa
  • Patent number: 7769253
    Abstract: An object of the present invention is to provide an electronic circuit device capable of reducing the occurrence of electromagnetic waves associated with the propagation of a signal by utilizing light as a signal. The electronic circuit device has a transparent substrate (hereinafter written as a substrate) over which an optical sensor and an optical shutter and an electronic circuit composed of thin film transistors (TFTs) are formed. An optical signal is inputted from an external into the electronic circuit device, the optical signal is directly irradiated on the optical sensor over the substrate, and penetrates through the substrate, and inputted into an optical sensor over another substrate. The optical sensor converts the optical signal into an electronic signal, and the circuit over the substrate operates.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: August 3, 2010
    Assignees: Semiconductor Energy Laboratory Co., Ltd., Sharp Kabushiki Kaisha
    Inventors: Shigeki Imai, Tomoyuki Nagai, Shunpei Yamazaki, Jun Koyama
  • Patent number: 7768622
    Abstract: A method for producing a liquid crystal display device including a pair of substrates, an electrode and an alignment layer formed on each substrate and a liquid crystal filled between the substrates, where at least one alignment layer exhibits a vertically orienting property. The method includes alignment-treating at least one of the alignment layers by irradiating the alignment layer exhibiting a vertically orienting property with ultraviolet rays, in two different directions, by providing two lamps for projection of ultraviolet rays. Also disclosed is manufacturing equipment for orienting an alignment layer of a liquid crystal display device, including a first lamp and a second lamp located at a different position than the first lamp, but on the same side of the alignment layer. Also, both lamps irradiate different ultraviolet rays that are within ±10 degrees of parallelism, and the first and second lamps irradiate ultraviolet rays in two different directions.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidefumi Yoshida, Tsutomu Seino, Yasutoshi Tasaka
  • Publication number: 20100188437
    Abstract: A display device prevents luminance unevenness that occurs in the case of inversion driving being performed, and performs high quality image display, while selectively scanning two lines of picture elements constituting a single pixel using a single gate wiring, as in the case of multi-primary color image display.
    Type: Application
    Filed: June 9, 2008
    Publication date: July 29, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Ryohki Itoh, Satoshi Horiuchi, Yuhko Hisada
  • Publication number: 20100189421
    Abstract: A recording and reproducing apparatus (10) comprises an external device I/F (12) for connecting an external recording medium (16) where contents including AV data or an application program are recorded, a recorder (20) for recording a content read from the external recording medium (16), and a processing unit (11) for reproducing or executing the recorded content. The processing unit (11) imposes a different access limitation to an any content reproducable or executable by the recording and reproducing apparatus (10) depending on the install processing, load processing and content execution processing, and constrains the access to the content in the content execution processing depending on the reliability of the content.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Katsushi Ohizumi, Hideaki Kizuki, Jiro Kiyama
  • Publication number: 20100189422
    Abstract: A recording and reproducing apparatus (10) comprises an external device I/F (12) for connecting an external recording medium (16) where contents including AV data or an application program are recorded, a recorder (20) for recording a content read from the external recording medium (16), and a processing unit (11) for reproducing or executing the recorded content. The processing unit (11) imposes a different access limitation to an any content reproducable or executable by the recording and reproducing apparatus (10) depending on the install processing, load processing and content execution processing, and constrains the access to the content in the content execution processing depending on the reliability of the content.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Katsushi Ohizumi, Hideaki Kizuki, Jiro Kiyama
  • Publication number: 20100188956
    Abstract: A recording parameter setting device includes a trial recording parameter setting section (23) and a reproduced signal quality judging section (26). The trial recording parameter setting section (23) inquires, in accordance with the recording information, a storage section (3) containing recording parameters used for controlling heat of recording marks, and sets a trial recording parameter, wherein (a) the recording parameters are used for controlling heat of at least rear edges, (b) the recording parameters are classified in accordance with recording mark lengths, and (c) recording parameters of a predetermined recording mark length or longer are classified into a same group. The reproduced signal quality judging section (26) judges whether or not a reproduced signal obtained by reproduction of the trial recording carried out in accordance with the trial recording parameter satisfies a predetermined reproduced signal quality.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshihisa Adachi, Shigemi Maeda, Atsushi Etoh
  • Publication number: 20100188694
    Abstract: An image reading apparatus includes: a document reading unit; a storage storing a user ID and viewing limiting information indicating whether or not viewing of image data is permitted or not, in association with each other for each user; a control unit activating the document reading unit when authentication based on the user ID is successful; and a limiting information adding unit for adding, to the image data, authentication requesting data indicating that authentication is necessary for viewing the image data, in accordance with the viewing limiting information associated with the authenticated user ID.
    Type: Application
    Filed: December 29, 2009
    Publication date: July 29, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Ryoh Hamada
  • Publication number: 20100189406
    Abstract: A video disk player includes (i) a disk reading section for reading out video data, a program, synchronization timing information from an optical disk; (ii) a clock for generating a clock signal; (iii) a decoder for converting, in accordance with the clock signal, the video data into decompressed video data for reproduction output; (iv) a video reproducing section including a synchronization control section for transmitting, in accordance with the clock signal, a synchronization control signal to the program executing section at a timing specified by a field timing contained in the synchronization timing information, and (v) a program executing section for executing a program in accordance with the synchronization control signal received from the synchronization control section. This makes it possible to efficiently execute the program in synchronization with reproduction of AV data or the like.
    Type: Application
    Filed: March 30, 2010
    Publication date: July 29, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Jiro Kiyama, Hideaki Kizuki, Katsushi Ohizumi
  • Publication number: 20100189420
    Abstract: A recording and reproducing apparatus (10) comprises an external device I/F (12) for connecting an external recording medium (16) where contents including AV data or an application program are recorded, a recorder (20) for recording a content read from the external recording medium (16), and a processing unit (11) for reproducing or executing the recorded content. The processing unit (11) imposes a different access limitation to an any content reproducable or executable by the recording and reproducing apparatus (10) depending on the install processing, load processing and content execution processing, and constrains the access to the content in the content execution processing depending on the reliability of the content.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Katsushi Ohizumi, Hideaki Kizuki, Jiro Kiyama
  • Publication number: 20100188955
    Abstract: A recording parameter setting device includes a trial recording parameter setting section (23) and a reproduced signal quality judging section (26). The trial recording parameter setting section (23) inquires, in accordance with the recording information, a storage section (3) containing recording parameters used for controlling heat of recording marks, and sets a trial recording parameter, wherein (a) the recording parameters are used for controlling heat of at least rear edges, (b) the recording parameters are classified in accordance with recording mark lengths, and (c) recording parameters of a predetermined recording mark length or longer are classified into a same group. The reproduced signal quality judging section (26) judges whether or not a reproduced signal obtained by reproduction of the trial recording carried out in accordance with the trial recording parameter satisfies a predetermined reproduced signal quality.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshihisa Adachi, Shigemi Maeda, Atsushi Etoh
  • Publication number: 20100190506
    Abstract: Consecutive subcarriers are reserved, and the reserved consecutive subcarriers are properly allocated to a terminal. The invention is a scheduling method that allocates, within an available band, a block composed of one or more subcarriers and used for signal transmission by a communication terminal being a destination of communication, and the method includes the steps of selecting (S208), with a higher priority, communication terminals having different number of the subcarriers composing the block as simultaneously communicating terminals that perform signal transmission simultaneously, and allocating (S214) the block for use by the simultaneously communicating terminals within the available band.
    Type: Application
    Filed: July 7, 2008
    Publication date: July 29, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shimpei To, Yasuhiro Hamaguchi, Hideo Namba, Minoru Kubota