Patents Assigned to Seiko Epson
  • Publication number: 20050286016
    Abstract: A self-washing step of rotating elastic polishing members 230, supplying a liquid L to the elastic polishing members 230, and, in this condition, pressing pressing units 220 against the elastic polishing members 230 to deform the elastic polishing members 230, thereby washing the elastic polishing members 230 themselves is added to a scrubbing step of rotating lens molds 1, 2, rotating the elastic polishing members 230, pressing the elastic polishing members 230 against the surfaces of the lens molds, and, in this condition, supplying the liquid to the areas between the surfaces of the lens molds 1, 2 and the elastic polishing members 230, thereby washing the lens molds 1, 2. In a drying step, hot water is supplied to the lens molds 1, 2 being rotated, and thereafter dry air is supplied thereto.
    Type: Application
    Filed: October 24, 2003
    Publication date: December 29, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi Hosoda, Yoshio Sano, Isao Karasawa
  • Publication number: 20050289615
    Abstract: A video delivery system includes: a video delivery device which delivers video data through a network. The video delivery device has a function of generating video data of the same contents as preceding delivery video data and succeeding delivery video data, and a function of delivering the preceding delivery video data and the succeeding delivery video data with a predetermined time difference. The video delivery system also includes a video receiving device which receives the video data delivered from the video delivery device and generates video data to be played back. The video receiving device has a function of receiving the preceding delivery video data and the succeeding delivery video data, a function of checking the preceding delivery video data and the succeeding delivery video data, and a function of generating video data to be played back on the basis of a result of the checking of the preceding delivery video data and the succeeding delivery video data.
    Type: Application
    Filed: June 20, 2005
    Publication date: December 29, 2005
    Applicant: Seiko Epson Corporation
    Inventor: Masanobu Nishitani
  • Publication number: 20050286116
    Abstract: To provide an electrophoretic dispersion capable of reducing or preventing the aggregation of electrophoretic particles, an electrophoretic display device using the electrophoretic dispersion, a method of manufacturing the electrophoretic display device, and an electronic system superior in display performance; an electrophoretic display device (electrophoretic display unit) has: a first substrate with a first electrode; a second substrate with a second electrode opposite the first electrode; and an electrophoretic dispersion provided between the first substrate and second substrate. The electrophoretic dispersion (dispersion for electrophoretic display units) includes a liquid phase insulative dispersion medium and electrophoretic particles dispersed in the dispersion medium, the particles electrophoretically migrated under an influence of an electric field.
    Type: Application
    Filed: August 17, 2005
    Publication date: December 29, 2005
    Applicant: Seiko Epson Corporation
    Inventor: Sadao Kanbe
  • Publication number: 20050287377
    Abstract: A method for making layers includes (A) applying or supplying a liquid intermediate material on a first layer composed of a first insulating resin to form an intermediate material layer on the first layer; (B) applying or supplying a liquid conductive material containing a first metal on the intermediate material layer to form a conductive material layer on the intermediate material layer; and (C) activating the intermediate material layer and the conductive material layer to form an intermediate layer and a conductive layer on the intermediate layer. The liquid intermediate material contains a precursor of a second insulating resin and fine particles of a second metal.
    Type: Application
    Filed: May 27, 2005
    Publication date: December 29, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kenji Wada
  • Publication number: 20050286026
    Abstract: Aspects of the invention provide a projector for displaying an image on a projection surface. The projector can include a test pattern projecting unit that projects a predetermined test pattern on the projection surface, a focus changing unit that moves a focal point of the projector, an imaging unit that performs imaging the projected test pattern to generate a shot image, an indicator value calculating unit that calculates an indicator value relating to a focus state of the shot image varying with movement of the focal point, and a focus adjustment unit that performs focus adjustment for focusing the focal point on the projection surface using the indicator value. The test pattern including a first kind and a second kind of density areas alternately arranged and having different density with each other, and at least the first kind of density areas include a narrow area and a broad area.
    Type: Application
    Filed: June 1, 2005
    Publication date: December 29, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Morio Matsumoto, Shiki Furui
  • Publication number: 20050286061
    Abstract: An automatic image correction circuit automatically performs image correction on obtained image data. The automatic image correction circuit includes the following elements. A storage unit stores setting values used for the image correction. A reading portion reads the setting values stored in the storage unit every time the image correction is performed on one frame of the image data. A writing portion writes new setting values into the storage unit at a timing different from a timing at which the reading portion reads the new setting values.
    Type: Application
    Filed: June 20, 2005
    Publication date: December 29, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takashi Kurumisawa
  • Publication number: 20050285988
    Abstract: An electro-optical device includes a substrate; thin film transistors provided on the substrate and including a semiconductor layer having a channel region thereon; display electrodes provided on the substrate and electrically connected to the thin film transistors; storage capacitors electrically connected to the display electrodes; an interlayer insulating layer deposited on at least one side of an upper layer side and a lower layer side of the semiconductor layer; and a light shielding layer deposited on a side of the interlayer insulating layer not facing the semiconductor layer to shield the channel region from light, in which concave portions locally pitted toward the semiconductor layer are formed on a surface of the interlayer insulating layer not facing the semiconductor layer, in a region where at least edge of the channel region out of the channel region can be shielded from light, and in which the light shielding layer is formed at least in the concave portion to act as a capacitor electrode of at
    Type: Application
    Filed: June 9, 2005
    Publication date: December 29, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masashi Nakagawa
  • Publication number: 20050285509
    Abstract: To provide an organic electroluminescent device and a method of manufacturing the same, in which the organic electroluminescent device has an organic functional layer formed by a liquid phase method, the organic functional layer formed in a uniform thickness while maintaining an aperture ratio, thereby obtaining a uniform and high efficient emission. According to an organic EL device of the present invention, an organic EL element having an organic functional layer interposed between a pixel electrode and a common electrode is arranged on a substrate, and the organic functional layer is arranged in a region surrounded by a bank arranged along the periphery of the pixel electrode, and-at the same time, a hole injection layer and a light-emitting layer are stacked at the pixel electrode. A convex portion protruded at the hole injection layer is arranged on the pixel electrode and a part of the hole injection layer is interposed between the convex portion and the light-emitting layer.
    Type: Application
    Filed: February 14, 2005
    Publication date: December 29, 2005
    Applicant: Seiko Epson Corporation
    Inventors: Tatsuaki Funamoto, Ryoichi Nozawa
  • Patent number: 6980187
    Abstract: A display driver circuit holds a gray-scale value in a gray-scale value latch circuit corresponding to a shift output signal from a shift register, and drives first to Mth (M is an integer of two or more) signal electrodes. The gray-scale value latch circuit includes first to Mth gray-scale value latches. First to kth (1?k<M, k is an integer) gray-scale value latches among the first to Mth gray-scale value latches take in the gray-scale value on a left gray-scale value signal bus based on the shift output signal. (k+1)th to Mth gray-scale value latches among the first to Mth gray-scale value latches take in the gray-scale value on a right gray-scale value signal bus based on the shift output signal. A bus dividing circuit outputs the gray-scale value on a gray-scale value bus to either or both of the left and right gray-scale value signal buses based on a bus dividing signal.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: December 27, 2005
    Assignee: Seiko Epson Corporation
    Inventor: Yuichi Toriumi
  • Patent number: 6980203
    Abstract: In a display data RAM, a group of memory cells for storing grayscale data for two lines are disposed within an output pad pitch L of a display driver circuit, and at least two groups of the memory cells are arranged in a direction perpendicular to the direction in which the output pads are arranged. The grayscale data for two lines is read at a time from the display data RAM. Latch circuits latch the grayscale data for four lines based on first and second clock signals. A selector circuit selectively outputs the grayscale data for consecutive three lines from among the grayscale data latched in the latch circuit. An MLS signal conversion circuit performs MLS operation in which three lines are simultaneously selected, based on the selectively output grayscale data for three lines. A signal electrode driver circuit outputs a drive voltage to the output pads based on the MLS operation results.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: December 27, 2005
    Assignee: Seiko Epson Corporation
    Inventor: Yusuke Ota
  • Patent number: 6979612
    Abstract: A semiconductor device in certain embodiments includes an insulating layer provided above the upper surface of a semiconductor substrate, and a capacitive element section and a resistance element section formed above the insulating layer. In the capacitive element section, a gate electrode serving as an opposite electrode for the capacitive element is formed above the insulating layer. The gate electrode is covered with a dielectric layer comprising silicon oxide, silicon nitride or tantalum oxide, and an electrode for the capacitive element comprising MoSix is provided above the dielectric layer. The resistance element section has a resistance element comprising MoSix formed simultaneously with the electrode for the capacitive element in the same process.
    Type: Grant
    Filed: January 19, 2004
    Date of Patent: December 27, 2005
    Assignee: Seiko Epson Corp.
    Inventors: Michio Koike, Yuji Oda
  • Patent number: 6979374
    Abstract: Disclosed herein is a magnetic powder which can provide magnets having excellent magnetic properties and having excellent reliability especially excellent heat stability. The magnetic powder is composed of an alloy composition represented by Rx(Fe1-aCoa)100-x-y-zByMz (where R is at least one kind of rare-earth element excepting Dy, M is at least one kind of element selected from Ti, Cr, Nb, Mo, Hf, W, Mn, Zr and Dy, x is 7.1-9.9 at %, y is 4.6-8.0 at %, z is 0.1-3.0 at %, and a is 0-0.30, and the magnetic powder being constituted from a composite structure having a soft magnetic phase and a hard magnetic phase, wherein when the magnetic powder is mixed with a binding resin and then the mixture is subjected to compaction molding to form a bonded magnet having a density ?[Mg/m3], the maximum magnetic energy product (BH)max[kJ/m3] of the bonded magnet at a room temperature satisfies the relationship represented by the formula (BH)max/?2[×10?9 Jm3/g2] 2.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: December 27, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Akira Arai, Hiroshi Kato
  • Patent number: 6979079
    Abstract: The ink cartridge includes an ink supply port formed at a position, offset to one side, of a wall configuring an ink container body; a positioning projecting portion, formed on one wall out of two opposing walls adjacent the wall, whose upper surface and side portion are regulated in position when the cartridge has been mounted on a recording apparatus; a lever, formed on the other wall out of the two walls, maintaining a normal hinged-open state and having a projection that is forcibly displaced outward when the cartridge is mounted on the recording apparatus; and electrodes that are connected to a memory unit storing information on the ink in an ink container and formed on the positioning projecting portion.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: December 27, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhiro Hashii, Satoshi Shinada, Yasuto Sakai, Kazumasa Harada, Kazuaki Aoki
  • Patent number: 6981053
    Abstract: In an image data server 200, a preview data generation unit 218 generates preview data corresponding to image data, and a transmission controller 211 transmits the preview data to a computer system 100 in an image receiver apparatus. In accordance with another possible application, the preview data is not generated by the image data server 200, but is generated by a computer system 300 in an image transmitter apparatus, which transmits the image data to the image data server 200, and transmitted to the image data server 200. In the computer system 100 in the image receiver apparatus, a display controller 113 causes the contents of the preview data to be displayed on the screen of a monitor 150. The user determines whether or not the image data corresponding to the displayed preview image is required. In response to an instruction for transfer of the image data input from the user, a transmission controller 111 transmits a request for transfer of the image data to the image data server 200.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: December 27, 2005
    Assignee: Seiko Epson Corporation
    Inventor: Fumio Nagasaka
  • Patent number: 6979839
    Abstract: An electro-optical device having six image signal lines that are third layer leads comprising the same layer as data lines. A lead which is branched from one image signal line and crosses the other image signal lines is a parallel connection of a first layer lead and a second layer lead. The first layer lead comprises the same layer as the scanning lines in a display region and the second layer lead comprises the same layer as a barrier film of a thin film transistor (TFT) in the display region. Although the first and second layer leads have high resistance alone, the parallel connection can reduce resistance. In other portions, the second layer lead is used alone to improve the design versatility. Thus, the design versatility of peripheral circuits such as a sampling circuit in an electro-optical device is improved and the lead resistance in the peripheral circuit is reduced.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: December 27, 2005
    Assignee: Seiko Epson Corporation
    Inventor: Masao Murade
  • Patent number: 6980061
    Abstract: The problem of interference and coupling between circuits that arises in reducing the size of a voltage-controlled oscillator by using low temperature co-fired ceramics (LTCC) substrate technology is alleviated. A voltage-controlled oscillator includes an amplifier a surface acoustic wave device 15 that forms a feedback circuit for the amplifier; a frequency adjuster that is provided the feedback circuit and has a filter configuration; a phase shifter 13 including a hybrid coupler having an additional controller that receives a control voltage from an external source and changes a phase in an oscillation loop; an equal power distributor 12 that equally distributes output power in the oscillation loop and outputs the power to the outside of the oscillation loop; and a delay line 16 concentratedly provided a place where coupling or interference does not occur the oscillation loop for correcting a phase condition in the oscillation loop.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: December 27, 2005
    Assignees: Seiko Epson Corporation, NGK Insulators, Ltd.
    Inventors: Yutaka Takada, Kenji Suzuki, Tatsuya Tsuruoka
  • Patent number: 6979960
    Abstract: The invention provides a circuit to drive a light source capable of lengthening the life span of the light source and of coping with both a rated power mode and a power saving mode. A circuit to drive a light source includes a control device to drive the light source, which is composed of a discharge tube, and to switch the light source to a plurality of lighting modes including a rated power mode and a power saving mode. The control device includes a lighting mode setting unit to set the lighting mode to one of the plurality of lighting modes, and a rated power supplying unit to supply a rated power to the light source at the lighting starting time of the light source until a halogen cycle of the discharge tube is stabilized. The control device switches the light source to the lighting mode set by the lighting mode setting unit after the halogen cycle of the discharge tube is stabilized.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: December 27, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Kazuo Okawa, Tomiyoshi Ushiyama
  • Publication number: 20050280041
    Abstract: A device manufacturing method, including: a first process for providing the plural elements on the original substrate via a separation layer in a condition where terminal sections are exposed to a surface on an opposite side to the separation layer; a second process for adhering the surface where the terminal sections of the elements to be transferred on the original substrate are exposed, via conductive adhesive, to a surface of the final substrate on a side where conductive sections for conducting with the terminal sections of the elements are provided; a third process for producing exfoliation in the separation layer between the original substrate and the final substrate; and a fourth process for separating the original substrate from which the transfer of elements has been completed, from the final substrate.
    Type: Application
    Filed: August 17, 2005
    Publication date: December 22, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi Hashimoto, Atsushi Takakuwa, Tomoyuki Kamakura, Sumio Utsunomiya
  • Publication number: 20050283591
    Abstract: The present invention provides a system and method for managing load and store operations necessary for reading from and writing to memory or I/O in a superscalar RISC architecture environment. To perform this task, a load store unit is provided whose main purpose is to make load requests out of order whenever possible to get the load data back for use by an instruction execution unit as quickly as possible. A load operation can only be performed out of order if there are no address collisions and no write pendings. An address collision occurs when a read is requested at a memory location where an older instruction will be writing. Write pending refers to the case where an older instruction requests a store operation, but the store address has not yet been calculated. The data cache unit returns 8 bytes of unaligned data. The load/store unit aligns this data properly before it is returned to the instruction execution unit.
    Type: Application
    Filed: April 25, 2005
    Publication date: December 22, 2005
    Applicant: Seiko Epson Corporation
    Inventors: Cheryl Brashears, Johannes Wang, Le Nguyen, Derek Lentz, Yoshiyuki Miyayama, Sanjiv Garg, Yasuaki Hagiwara, Te-Li Lau, Sze-Shun Wang, Quang Trang
  • Patent number: RE38926
    Abstract: An ink jet printer including a cartridge which moves along a print area, a head mounted on the carriage, an ink cartridge mounted on the cartridge for supplying ink to the head, a lever on the carriage for mounting or demounting the ink cartridge with respect to the carriage and a stopper for stopping the movement of the carriage by coming into contact with the lever when an operation of mounting the ink cartridge by the lever has not been completely effected. The ink jet printer may also include a resilient member for supporting the ink cartridge on the carriage.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: December 27, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Seiichi Hirano, Susumu Murayama, Masanori Yoshida