Patents Assigned to Sharp Kabushiki
  • Publication number: 20050199946
    Abstract: A manufacturing method of a semiconductor memory device comprising the steps of: forming plural trenches in stripes in a semiconductor substrate and filling each of the trenches with an element isolation insulating film to form element isolation regions; sequentially forming a tunnel insulating film and a charge-storable film so as to cover active regions between the element isolation regions; forming an interlayer insulating film on the charge-storable film; forming plural control gates on the interlayer insulating film in a direction orthogonal to a longitudinal direction of the trenches; among source formation regions and drain formation regions alternately provided between the plural control gates, etching the element isolation insulating film in the source formation regions, using as a mask a resist film having openings in the source formation regions, to expose surfaces of the trenches; and carrying out isotropic plasma ion implantation on the source formation regions to form source diffusion layers in
    Type: Application
    Filed: March 11, 2005
    Publication date: September 15, 2005
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kazuhiro Hata, Shinichi Sato, Yukiharu Akiyama
  • Publication number: 20050200781
    Abstract: A liquid crystal layer, a color filter, a thick resin layer, and a parallax barrier layer are provided between two transparent substrates. The separation between the color filter and the parallax barrier layer is adjusted using the thick resin layer to a short distance suitable for dual image displays.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 15, 2005
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Tomoo Takatani
  • Patent number: 6943912
    Abstract: An image forming apparatus is provided which is capable of storing image data regardless of remaining free area of a memory associated with a specified function. The digital image forming apparatus comprises a facsimile memory for storing transmission/reception data by a memory transmission/reception function of a facsimile, a copying memory for storing copying data by a copying/printing function or externally inputted data, and a compression/expansion converting section which converts transmission/reception data stored in the facsimile memory by the memory transmission/reception function into data suitable for communication via a communication line, wherein a CPU working as storage control means is disposed which, when storing data by one function of a plurality of functions into a memory associated with the function, stores the data into a memory associated with another function in the case where all the data cannot be stored into the associated memory.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Naoyuki Kamei, Motohiro Hayashi, Takeshi Ibuki
  • Patent number: 6944629
    Abstract: A managing method for a multimedia file includes the steps of: generating index information including a source identifier expressing a source having one or more of management units associated with the multimedia file as a title frame, positions of a leading frame and tail frame of the title frame in the source, and a position of a reference frame for decoding the leading frame; and recording the index information onto a recording medium, attaching the index information to the multimedia file. The managing method for a multimedia file may include the steps of: causing a user to specify one or more of the management units associated with the multimedia file as a title frame; generating index information in which a bit stream obtained by encoding a specified title frame is embedded, and recording the index information onto a recording medium, attaching the index information to the multimedia file.
    Type: Grant
    Filed: September 6, 1999
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Shioi, Keiichi Hibi, Toshio Nomura
  • Patent number: 6942353
    Abstract: A backlight unit a light source for originating light; a light guide plate including incident portions through which light originated form the light source enters and an emitting portion form emitting the entered light; and a chassis including a first recessed portion having a first depth and on which the light source is located and a second recessed portion having a second depth deeper than the first depth and a sice adjusted for the light guide plate and on which the light guide plate is located.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsuaki Yamada, Kenichi Iwamoto, Yoshiki Takata, Kentaroh Aoki, Yuhsuke Ohta
  • Patent number: 6943533
    Abstract: A voltage conversion circuit alternately controls ON/OFF of a PMOS transistor and an NMOS transistor that are provided in series between high voltage power source lines, and outputs a low voltage obtained by causing a filter circuit to smooth an output voltage of each transistor. Further, the voltage conversion circuit uses the output voltage of the filter circuit as a power source of an output pulse signal generating circuit for driving the two transistors. Further, the voltage conversion circuit causes a start-up signal generating circuit to generate a start-up signal for forcing the PMOS transistor to turn ON during a predetermined period on start-up, and causes a switch control circuit to select the start-up signal instead of the pulse signal from the output pulse signal generating circuit, thereby realizing sure start-up.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tomohisa Okuno
  • Patent number: 6943542
    Abstract: This wheel speed detector is constructed of a magnetic sensor and a magnetic ring and is integrated with the inside of a seal device. The magnetic ring constitutes a part (core bar) of the seal device. This arrangement can enable the compacting and reduction in the number of components and improve space saving and assembling workability.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Minoru Sentoku, Motoshi Kawamura, Kazutoshi Toda, Nobuyuki Seo, Naoki Morimura, Tomohiro Ishii, Kanichi Kouda, Yoshifumi Shige, Fujio Harumi
  • Patent number: 6944077
    Abstract: A reading circuit for reading information stored in a memory cell includes a current supply circuit for supplying a current to a bit line connected to the memory cell; a comparison circuit for comparing a potential of the bit line supplied with the current by the current supply circuit with a reference potential so as to output the information stored in the memory cell; a disconnection circuit for electrically disconnecting the comparison circuit and the memory cell from each other under a prescribed condition; a charge circuit for charging the bit line, the charge circuit stopping charging of the bit line when the potential of the bit line exceeds a prescribed potential; and a discharge circuit for discharging the bit line when the potential of the bit line exceeds the prescribed potential.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshinao Morikawa
  • Patent number: 6944093
    Abstract: A semiconductor memory device is provided, which comprises a memory array comprising a plurality of memory cells, a page buffer section for temporarily storing data to be written into the memory array, and a masking section for masking at least a portion of data read from the page buffer section.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Ken Sumitani
  • Patent number: 6943863
    Abstract: A liquid crystal display device includes a pair of opposed substrates, and a liquid crystal layer as a display medium disposed between said substrates. The pair of substrates are adhered together by a resin sealing material disposed on the periphery portion of at least one of the substrates at a prescribed gap, and an outflow preventing portion is provided.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyoshi Fujioka, Yozo Narutaki, Hisashi Nagata, Kazushige Miyamoto, Takayuki Shimada
  • Patent number: 6944314
    Abstract: To dynamically embed information with a digital content taken into account a digital information embedding device includes an input block receiving an image, a feature value parsing block detecting a feature value of at least a partial area of the input image, and an information embedding block modifying the area, based on the detected feature value. A feature value detected can be referred to to modify an area. This allows a content of an image to be considered in embedding digital information.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: September 13, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Mitsunobu Shimada
  • Publication number: 20050194671
    Abstract: A high frequency semiconductor device including: at least two high frequency semiconductor chips each having an output electrode pad and a circuit; a frame having a die bond area in which the high frequency semiconductor chips are mounted; a plurality of leads which electrically connect the circuits of the respective high frequency semiconductor chips to an external device; and a plurality of output terminal connection wires connected between the output electrode pads of the respective chips and the corresponding leads, wherein the high frequency semiconductor chips are disposed in the die bond area with the output electrode pad of one of the high frequency semiconductor chips being spaced at least a first predetermined distance from the output electrode pad of the other high frequency semiconductor chip, and wherein the output terminal connection wire connected to the output electrode pad of the one high frequency semiconductor chip is spaced at least a second predetermined distance from the output terminal
    Type: Application
    Filed: February 28, 2005
    Publication date: September 8, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kouken Yoshikawa, Fumio Itoh
  • Publication number: 20050195877
    Abstract: In a semiconductor laser apparatus, semiconductor laser devices are mounted on a loading face of a radiation base portion produced from a radiation material in a mount board, and the radiation base portion and a cap portion constitute an envelope surrounding the semiconductor laser devices. Further, the radiation base portion and interconnections formed on and an extending face of the radiation base portion constitute an external connection terminal. Therefore, heat generated by the semiconductor laser devices is efficiently transferred to the radiation base portion produced from a radiation material. Further, constituting the external connection terminal allows a leadless configuration to be implemented. Thus, a semiconductor laser apparatus which is sufficient in radiation characteristics and is capable of supporting a low-profile specification is provided.
    Type: Application
    Filed: February 24, 2005
    Publication date: September 8, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideshi Koizumi, Takuya Shigenobu
  • Publication number: 20050194037
    Abstract: A solar cell attaining high efficiency in photoelectric conversion is provided. A method of manufacturing a solar cell having a grid electrode and a main electrode for external output of electric power from the grid electrode includes the steps of forming a small-width grid electrode on a light-receiving surface of a substrate having a pn junction by sintering a metal paste material, and forming a bar-shaped main electrode electrically connected to the grid electrode.
    Type: Application
    Filed: August 31, 2004
    Publication date: September 8, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Masahito Asai
  • Publication number: 20050196192
    Abstract: Provided is an image forming apparatus support structure which permits improvements in both strength and dimensional accuracy, and which can also accommodate increases in size. Because respective coupling member(s) and steel channel of respective post member(s) may be sequentially and individually connected, it is possible to improve support structure dimensional accuracy, it being possible to assemble support structure(s) such that deviation(s) in the respective coupling member(s) and the respective post member(s) offset(s) one another. Furthermore, steel channel is suitable for supporting load(s) in vertical direction(s). Moreover, respective coupling member(s) may serve as brace(s) when interposed between respective post members. Where this is the case, strength of the overall support structure may be made extremely high, and strain exhibited by the overall support structure may be reduced.
    Type: Application
    Filed: January 18, 2005
    Publication date: September 8, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shigenori Morimoto, Takahiro Fukunaga, Ryohsuke Sugiyama, Tatsuya Ogawa, Haruo Sayama
  • Publication number: 20050196695
    Abstract: A toner is provided with which the image formed by the use of an image-forming apparatus for electrophotography may keep a good and uniform image density for a long period of time from the initial stage of image formation. The toner contains a toner base particle containing at least a colorant and a binder resin, silica having an average particle size of 40 nm or larger and 200 nm or smaller, and an aluminum oxide-silicon dioxide mixed oxide having an average particle size of 5 nm or larger and 25 nm or smaller. The silica and the aluminum oxide-silicon dioxide mixed oxide are externally added to the toner base particle.
    Type: Application
    Filed: March 2, 2005
    Publication date: September 8, 2005
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masahiko Kubo, Satoshi Ogawa, Yoshiaki Akazawa, Hiromi Nakatsu, Akio Matsumoto, Masao Suzuki
  • Publication number: 20050194525
    Abstract: The temperature difference between an internal temperature and an external temperature which are detected by an internal temperature sensor and an external temperature sensor, respectively, is calculated. If the internal temperature is lower by not less than predetermined degrees than the external temperature and, hence, condensation on the surface of each optical component within a laser writing unit is highly likely, a motor is driven to rotate a polygonal mirror. During its operation the motor generates heat, which in turn transfers from a flange portion directly to a housing while heating air around the laser writing unit. Further, air within the housing is stirred by rotation of the polygonal mirror. In this way the temperature of the entire laser writing unit is raised.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 8, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Masaki Saka
  • Publication number: 20050194686
    Abstract: A semiconductor device according to the present invention comprises an electrode pad electrically conducted to an electric circuit formed on an element-formed surface of a silicon wafer; a wiring pattern re-wired by being electrically conducted to the electrode pad; and an oxide film formed on a surface of the wiring pattern, the oxide film being formed by subjecting the wiring pattern to oxidization. With the provision of oxide film, the semiconductor device prevents a decrease in reliability in terms of electric characteristic or the like, and also achieves reduction in fabrication cost compared to a conventional semiconductor device.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 8, 2005
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshihide Iwazaki, Shinji Suminoe, Katsunobu Mori
  • Publication number: 20050195352
    Abstract: The liquid crystal display device of the invention has a plurality of pixels each having a first electrode, a second electrode facing the first electrode, and a vertically aligned liquid crystal layer placed between the first and second electrodes. The device includes: ribs in a stripe shape having a first width placed in the first electrode side of the liquid crystal layer; slits in a stripe shape having a second width placed in the second electrode side of the liquid crystal layer; and liquid crystal regions having a third width defined between the ribs and the slits. The third width is in a range between 2 ?m and 14 ?m, and the ratio of the third width to the second width is in a range between 1.0 and less than 1.5.
    Type: Application
    Filed: March 8, 2005
    Publication date: September 8, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Akihiro Yamamoto, Hiroyuki Ohgami, Takashi Ochi, Ryuichi Yokoyama
  • Publication number: 20050196207
    Abstract: An embodiment of a screw conveyor includes a rotating shaft and a conveying blade helically formed around and loosely coupled with the rotating shaft. One or both of two edges of the conveying blade is/are only fixed to the rotating shaft, and a gap is provided between the rotating shaft and the conveying blade. Thereby, the conveying blade can be vibrated in a center axis direction of the rotating shaft by rotation of the rotating shaft and conveyed waste developer.
    Type: Application
    Filed: March 2, 2005
    Publication date: September 8, 2005
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kazuhiro Matsuyama, Hirokazu Yamauchi, Yoshiaki Masuda, Hiroshi Kida