Patents Assigned to Sieko Epson Corporation
  • Patent number: 10696860
    Abstract: There is provided a reaction liquid to be attached to a recording medium to which an ink composition is to be attached, the reaction liquid including an aggregating agent which aggregates components of the ink composition, water, and a surfactant, in which a content of the surfactant is 2% by mass or more and 10% by mass or less with respect to a total mass of the reaction liquid.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: June 30, 2020
    Assignee: Sieko Epson Corporation
    Inventor: Akiko Matsuzaki
  • Patent number: 10627644
    Abstract: A first lens and a second lens are bonded to each other and configured to be short in an optical axis direction. Further, by providing a half mirror in a bonding portion between a convex surface and a concave surface, power is given when folding an optical path, and additionally, by setting a refractive index of the first lens larger than a refractive index of the second lens, an image with a wide angle of view can be formed.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: April 21, 2020
    Assignee: SIEKO EPSON CORPORATION
    Inventors: Masayuki Takagi, Takashi Takeda, Akira Komatsu, Toshiaki Miyao, Tokito Yamaguchi
  • Patent number: 9729095
    Abstract: A stepping motor control circuit includes a drive pulse generation section that generates forward-rotation drive pulses that drive a stepping motor stepwise in a forward rotation direction and reverse-rotation drive pulses that drive the stepping motor stepwise in a reverse rotation direction and a forward/reverse rotation switching control section that switches the drive pulses outputted to the stepping motor from one of the forward-rotation drive pulses and the reverse-rotation drive pulses to the other, and the forward/reverse rotation switching control section switches the drive pulses outputted to the stepping motor from one of the forward-rotation drive pulses and the reverse-rotation drive pulses to the other and then provide a predetermined period before the other drive pulses are outputted to the stepping motor.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: August 8, 2017
    Assignee: Sieko Epson Corporation
    Inventor: Osami Yamada
  • Publication number: 20120229715
    Abstract: A projector includes an illumination optical system capable of emitting first light and second light of a wavelength longer than that of the first light; a first liquid crystal panel constituted so as to include a first liquid crystal layer and capable of modulating the first light emitted from the illumination optical system; a second liquid crystal panel constituted so as to include a second liquid crystal layer having a transition temperature from a liquid crystal phase to an isotropic phase higher than that of the first liquid crystal layer and capable of modulating the second light emitted from the illumination optical system; a projection optical system projecting the first light modulated by the first liquid crystal panel and the second light modulated by the second liquid crystal panel; and a cooling mechanism for cooling the first liquid crystal layer.
    Type: Application
    Filed: February 22, 2012
    Publication date: September 13, 2012
    Applicant: Sieko Epson Corporation
    Inventor: Osamu Okumura
  • Patent number: 8181191
    Abstract: A media processing device does not execute a media transportation process if the height of media stacked in a media storage unit is at an over capacity level, and reliably prevents problems such as damage to the media transportation mechanism caused by collision with the stacked media. If in the media processing device the height of media stacked in a media storage unit 121, 122 is at a full stack level or over capacity level (step S33 returns yes or step S35 returns yes), an appropriate warning is output (step S34 or step S36) and collision accidents of the media transportation mechanism 131 can be prevented.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: May 15, 2012
    Assignee: Sieko Epson Corporation
    Inventor: Kazuya Toshima
  • Patent number: 8094356
    Abstract: A light scanning device includes a light source outputting a laser beam, a light deflecting unit having a light reflecting unit, the light deflecting unit being adapted to be rotatable about a predetermined axis and scanning an object with the laser beam reflected by the light reflecting unit, a drive controlling unit controlling a deflection angle variation in a vertical direction of the light deflecting unit per unit time so that an interval between scanning lines in the vertical direction by the light deflecting unit is constant, and a driving unit rotationally driving the light deflecting unit in accordance with an rotational angle determined by the driving controlling unit.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: January 10, 2012
    Assignee: Sieko Epson Corporation
    Inventors: Yasushi Mizoguchi, Norio Nakamura, Hirokazu Yamaga
  • Patent number: 7914128
    Abstract: A liquid ejecting head includes a piezoelectric element in which a lower electrode, a piezoelectric layer, and an upper electrode are laminated in this order, and a flow path forming substrate in which the piezoelectric element is formed above one surface thereof and a pressure generating chamber being communicated with a nozzle opening is provided, in which the upper electrode is formed so as to extend over an upper surface of the piezoelectric layer and an upper portion of side faces of the piezoelectric layer, and a protective film is formed above portions of the piezoelectric layer, which are not covered by the upper electrode.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: March 29, 2011
    Assignee: Sieko Epson Corporation
    Inventor: Seiichi Fujita
  • Publication number: 20100238419
    Abstract: In at least one embodiment of the disclosure, a light control device includes a light blocking module to block a luminous flux passing through the light control device in a direction parallel to a system optical axis. The light blocking module includes a first and a second light blocking member. The first light blocking member includes a cutout portion at an end near a system optical axis, the first light blocking member configured so as to change a size of an area blocking the luminous flux in accordance with an opening and closing operation of the light blocking module. The second light blocking member is disposed in proximity to the first light blocking member and configured so as to increasingly block the luminous flux from passing through the cutout portion of the first light blocking member in accordance with the closing operation of the light blocking module.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 23, 2010
    Applicant: Sieko Epson Corporation
    Inventor: Hirotaka Mochizuki
  • Publication number: 20090244249
    Abstract: A layered structure is provided with a recording unit, a reading unit whose back edge is connected to the recording unit via a pivot member, a support member having (i) a connecting portion that is connected pivotally to the reading unit, (ii) a contact portion that contacts a counterface surface of the recording unit facing the reading unit, and (iii) a support column that positions the contact portion at a position a certain distance from the connecting portion, a biased member that is biased against the support member in a forward direction, and a stopping portion formed on the counterface surface to stop the contact portion contacting the counterface surface from being displaced along the counterface surface.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 1, 2009
    Applicant: Sieko Epson Corporation
    Inventors: Kiyoshi Chinzei, Toshinori Asai
  • Publication number: 20090213159
    Abstract: A printing apparatus includes a recording head that prints an image and an ink cartridge that stores ink to the recording head. The ink cartridge includes an ink pack and an ink-end sensor that detects an ink-end point based on the pressure of ink supplied from the ink pack. The ink pressure corresponding to the ink-end point detected by the ink-end sensor is set to a first pressure that is the minimum pressure near an outlet of the ink cartridge at which the recording head can print an image of predetermined quality. A determining unit permits starting of a printing or cleaning operation in response to a command issued before the ink-end sensor detects the ink-end point and prohibits starting of a printing or cleaning operation in response to a command issued after the ink-end sensor has detected the ink-end point.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 27, 2009
    Applicant: Sieko Epson Corporation
    Inventors: Yuji AOKI, Hitotoshi KIMURA
  • Publication number: 20090160907
    Abstract: A liquid ejection head including: a head main body including: a cavity unit including a passage forming base plate forming a liquid passage from a common liquid chamber to a nozzle opening via a pressure chamber; and a pressure generating source generating a change of pressure of liquid in the pressure chamber to eject the liquid in the pressure chamber as a liquid droplet from the nozzle opening; and a case member to which the head main body is attached and which includes: a first member provided with a first atmosphere opening passage; and a second member laminated on the first member and provided with a second atmosphere opening passage, wherein the first and second atmosphere opening passages communicate with each other under the laminated state and are opened to atmosphere.
    Type: Application
    Filed: February 17, 2009
    Publication date: June 25, 2009
    Applicant: Sieko Epson Corporation
    Inventors: Hiroshige OWAKI, Kazutoshi Goto
  • Patent number: 7503968
    Abstract: A black ink composition includes a phthalocyanine-based pigment, a benzimidazolone-based pigment and a carbon black pigment.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: March 17, 2009
    Assignee: Sieko Epson Corporation
    Inventor: Shuichi Koganehira
  • Patent number: 7461133
    Abstract: The object of the present invention is to facilitate collection of contents that are present on a network. Attribute information is stored at a predetermined location under a domain in a server that provides a device driver. The attribute information specifies attributes of the driver provided by the server, such as the address, the corresponding type, the version, the installation method, and the platform, in an XML format. The user of the driver fetches the attribute information from a computer connecting with the network and analyzes the details of the attribute information, so as to readily specify the address of the driver, irrespective of the construction of the server. The attribute information also shows whether or not the driver has been updated. This arrangement facilitates automatic acquisition of the updated driver.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: December 2, 2008
    Assignee: Sieko Epson Corporation
    Inventor: Nobuhiro Gunji
  • Patent number: 7284818
    Abstract: An inkjet recording device includes a recording head and a cap placed in tight contact with a nozzle forming surface for defining a sealed space. A head moving mechanism moves the recording head along a direction in which the nozzle forming surface is extended, toward or separately from a contact position at which the cap is placed in tight contact with the recording head. A cap moving mechanism moves the cap toward or separately from the contact position at which the cap is placed in tight contact with the nozzle forming surface. A cap holding mechanism including a slider holds the cap such that the cap is allowed to slide along a moving direction of the recording head and positions the cap at the contact position.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: October 23, 2007
    Assignee: Sieko Epson Corporation
    Inventors: Atsushi Yoshida, Shozo Kuwada
  • Patent number: 7235885
    Abstract: A semiconductor device includes a wiring board having a wiring pattern, a semiconductor chip that has an integrated circuit and is mounted on a first surface of the wiring board to electrically connect with the wiring pattern, a spacer that is disposed on a second surface of the wiring board and has inside thereof an electronic component that is electrically connected with the wiring pattern and an external terminal that is disposed on the second surface and electrically connected with the wiring pattern.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: June 26, 2007
    Assignee: Sieko Epson Corporation
    Inventor: Shingo Horii
  • Publication number: 20050168685
    Abstract: A spectacle lens that can lower the slipperiness of a lens surface to an extent that allows an edging process by making without deteriorating the stain-proofing performance of the stain-proofing layer, when a stain-proofing layer is formed of two or more kinds of silane compounds including at least one or more kinds of fluorine-containing silane compounds, and as for the dynamic friction coefficient of lens surfaces defined by each of the two or more kinds of silane compounds as a single component, the highest value of the dynamic friction coefficients 1.4 times or more of the lowest value of the dynamic friction coefficients; and a manufacturing method thereof are provided.
    Type: Application
    Filed: November 27, 2003
    Publication date: August 4, 2005
    Applicant: SIEKO EPSON CORPORATION
    Inventors: Hiroshi Katagiri, Keiichi Suzuki, Akiko Kawase, Katsuyoshi Takeshita
  • Patent number: 6040918
    Abstract: A copying machine of the present invention has a scanner unit (2) for reading an original, a line type thermal head (14) for printing read image data on tape (16) to be used as a recording medium, a tape cartridge (51) for supplying the tape and a tape conveying mechanism. The tape (16) has an image carrying sheet (161), the front surface of which is a printing face to be printed with an image, an adhesive layer (162) formed by applying an adhesive to the back surface of this image carrying sheet and a release sheet (163) releasably stuck to the surface of the adhesive layer. The tape is taken up like a roll and is detachably fitted into the body of the copying machine in the form of the tape cartridge (51). At both ends of the tape, conveyance border portions of a uniform width are formed. In the border portions, engaging holes ( ) are formed at regular intervals in the direction of the length of the tape.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: March 21, 2000
    Assignee: Sieko Epson Corporation
    Inventors: Isao Edatsune, Hiroshi Kuriyama, Osamu Urano
  • Patent number: 5455642
    Abstract: In the present invention, the distance, the intermediate, and the reading portions are smoothly jointed together, and thereby the present invention provides a progressive power lens which is capable of enlarging an area, which provides an excellent field of view, by improving aberration of the lens body as well as reducing in weight and thickness.The curvature of one of two refracting interfaces of the distance portion or the reading portion varies along the principal gazing line from the vicinity of the center of the lens toward the peripheral portion thereof, the refracting interfaces oppositely facing to each other.
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: October 3, 1995
    Assignee: Sieko Epson Corporation
    Inventor: Kazutoshi Kato
  • Patent number: 4833098
    Abstract: In an improved metal-oxide-semiconductor (MOS) device a polycrystalline semiconductor region is buried in a monocrystalline semiconductor substrate at the isolation region between elements of the device. A deep and narrow groove of about 1 .mu.m is formed by reactive ion etching in which the polycrystalline silicon is deposited by chemical vapor deposition. Surface polycrystalline semiconductor is removed by etching resulting in only the polycrystalline semiconductor buried in the substrate which is implanted with ions. Alternatively, polycrystalline semiconductor is deposited only in the bottom portion of the groove, ion implanted and an insulator film is formed in the remaining portion of the groove for fully isolating the polycrystalline region. Semiconductor devices prepared in accordance with the invention have flattened surfaces, reduced crystal defects and permit further miniaturization of the MOS devices.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: May 23, 1989
    Assignee: Sieko Epson Corporation
    Inventor: Juri Kato
  • Patent number: D653950
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: February 14, 2012
    Assignee: Sieko Epson Corporation
    Inventors: Taku Ishizawa, Hitoshi Matsumoto, Mitsuto Yanagisawa, Yaeko Onishi