Patents Assigned to Epson Corporation
  • Patent number: 8789927
    Abstract: A liquid-ejecting head includes a pressure-generating chamber communicating with a nozzle opening and includes a piezoelectric element including a piezoelectric layer and electrodes. The piezoelectric layer contains bismuth sodium potassium titanate and satisfies the inequality 0?Pr/Pm?0.25 at 25° C., where Pm and Pr are the saturation polarization and remanent polarization, respectively, of the piezoelectric layer.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Takayuki Yonemura
  • Patent number: 8789930
    Abstract: A liquid ejecting apparatus includes: a liquid ejecting head having a pressure generation chamber in which a liquid is charged, a pressure generation unit which generates pressure change in the liquid inside the pressure generation chamber with supply of a driving signal, and a nozzle opening which ejects the liquid inside the pressure generation chamber according to the pressure change; and a control unit which has an expansion element expanding the pressure generation chamber and a contraction element contracting the pressure generation chamber, and supplies a micro-vibration driving signal to a piezoelectric element so as to generate the micro-vibration of the liquid to the inside of the pressure generation chamber without ejecting the liquid from the nozzle opening, wherein the micro-vibration driving signal is formed so that the inclination of the expansion element is greater than the inclination of the contraction element.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Junhua Zhang
  • Patent number: 8792175
    Abstract: A virtual image display system includes a display device that outputs image light, a projection lens that projects the image light from the display device, a first holding member that holds the projection lens, a light guide plate that takes in the image light from the projection lens, and then, guides the light to an external predetermined position, and a second holding member that holds the light guide plate. A positioning structure for positioning the light guide plate with respect to the projection lens is provided in the first holding member and the second holding member.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Takeshi Fujishiro
  • Patent number: 8792113
    Abstract: The advantage of the invention is to prevent the efficiency of printing from being deteriorated due to execution of an authentication process during a print process by arranging an authentication process not to be conducted during a print process. The multi-purpose device is connected to the authentication switch through the LAN. The authentication switch conducts an authentication process of a device connected to the LAN, and disconnects a connection between the device and the network in a case where the device cannot be authenticated. The multi-purpose device has the authentication requesting section that requests the authentication process with respect to the authentication switch; and the printing mechanism that prints print data. In a case where the printing mechanism conducts the print process, the authentication requesting section requests the authentication process before the printing mechanism starts the print process.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Akira Hiroshige, Mamoru Sakai, Katsuyuki Komatsu
  • Patent number: 8792178
    Abstract: A thickness of a tapered part provided at the deeper side (?X side) in a light guide direction of a light transmission member is smaller toward the deeper side, and thus, a reflection angle of ghost light that has passed through a fourth reflection surface provided with a half mirror layer and reached the light transmission member gradually becomes smaller within the tapered part and no longer satisfies a total reflection condition, and the light is ejected to the outside in the position diverging from an eye of an observer. That is, the tapered part may prevent the ghost light from reaching the eye and good see-through observation can be realized.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Takahiro Totani, Masayuki Takagi, Toshiaki Miyao, Akira Komatsu, Takashi Takeda
  • Patent number: 8793590
    Abstract: An event setting section sets calendars or accounts based on operation contents from an operation input receiving unit, and stores a list of the set calendars or accounts in a schedule database. In addition, the event setting section sets events in a calendar based on operation contents from the operation input receiving unit, and stores a list of the set events in the schedule database. An image correlation section stores image data supplied from an image input unit in an image database, and correlates (shares) the image data with the event list stored in the schedule database based on photographing information (photographing time, camera ID, and the like) accompanied by the image data.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Naoki Nakajo
  • Patent number: 8791877
    Abstract: An image display system includes: a plurality of image supply devices each having an image display section, and an image transmission section adapted to generate a supply image and to externally transmit the supply image; and an image display device capable of dividing a common screen area into one or more screen areas, and of displaying the supply image supplied from each of the image supply devices in the one or more screen areas, wherein each of the image supply devices displays a common screen area operating image to operate a display state of the common screen area in the image display section, and supplies a display image of the image display section to the image display device as the supply image, and the image display device changes the display state of the common screen area in accordance with an operation in each of the image supply devices.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Yosuke Kikuchi, Yasuhiko Komatsu, Tomohiro Nomizo
  • Patent number: 8789929
    Abstract: Provided is a piezoelectric element including a first electrode, a piezoelectric layer, and a second electrode, wherein the piezoelectric layer is formed of a complex oxide having a perovskite structure containing bismuth, barium, iron and titanium, binding energy of C—C and C—H states of a peak due to C 1s in an X-ray photoelectron spectroscopy measurement is standardized as 284.8 eV, when a peak obtained in a range of the binding energy of 775 eV or more and 785 eV or less is separated using a Gauss function, the binding energy has the peak in 780.5±0.8 eV, and one or more peak having intensity lower than that of the peak is included at a low binding energy side.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Kazuya Kitada
  • Patent number: 8791766
    Abstract: A piezoelectric resonating element includes a piezoelectric substrate having a rectangular vibrating portion and a thick-walled portion, excitation electrodes and, and lead electrodes. The thick-walled portion includes a fourth thick-walled portion, a third thick-walled portion, a first thick-walled portion, and a second thick-walled portion. The third thick-walled portion includes a third slope portion and a third thick-walled body, and at least one slit is formed in the third thick-walled portion.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Osamu Ishii, Shiro Murakami
  • Publication number: 20140204461
    Abstract: A optical device storage package includes a storage portion configured to store an optical device, a base portion which constitutes a bottom portion of the storage portion, a side wall portion which is integrally molded with the base portion and which constitutes a side surface portion of the storage portion, and a first lid portion joined to the side wall portion so as to cover the storage portion, constituting a top portion opposing the bottom portion of the storage portion and hermetically sealing the top portion, wherein the first lid portion is formed of a light-transmissive member.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Hideo IMAI, Yasushi MATSUNO, Shigemitsu KOIKE, Daisuke SAITO
  • Publication number: 20140204151
    Abstract: First, second, and third ink absorbing bodies are accommodated in a container of a recovery reservoir in this order from the side corresponding to a bottom surface of the container, so that an introduction chamber is defined in the middle of a recovery space. A lid having a shutter plate and a communication hole is located over the third ink absorbing body. The upper side of the introduction chamber is covered by the shutter plate to suppress volatilization of solvent element of waste ink introduced into the introduction chamber. In addition, the communication hole is located in a portion of the upper surface of the third ink absorbing body, so that solvent element of ink absorbed by the third ink absorption body volatilizes.
    Type: Application
    Filed: March 4, 2014
    Publication date: July 24, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shuhei HARADA, Keiji MATSUMOTO, Manabu YAMADA
  • Publication number: 20140202245
    Abstract: A piezoelectric device includes: a piezoelectric vibrating reed; and a package, wherein the piezoelectric vibrating reed has a vibrating part and first and second supporting arms extending from a base end part, the package has a base, a lid, a cavity defined by the base and the lid, a convex part projecting from the base or the lid into the cavity, a length of the first supporting arm is shorter than a length of the second supporting arm, and the convex part is provided in a range ahead of a leading end of the first vibrating arm in an extension direction of the first supporting arm and at least partially overlapping with the second supporting arm in a length direction of the piezoelectric vibrating reed so as not to overlap with the piezoelectric vibrating reed in a plan view.
    Type: Application
    Filed: March 24, 2014
    Publication date: July 24, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Katsuo ISHIKAWA, Akitoshi HARA
  • Publication number: 20140204438
    Abstract: An optical device includes a light-conducting member, having a first panel surface disposed facing an image forming unit, that conducts image light incident on a light entry plane formed at an end of the first panel surface to a light exit plane formed in front of the viewer's eye; a first diffractive optics element, provided on the light entry plane, that diffracts the image light incident on the light entry plane in a predetermined direction and transmits that light into the light-conducting member; a second diffractive optics element, provided on the light exit plane, that diffracts the image light exiting from the light exit plane in a predetermined direction and transmits that light to the front of the viewer's eye; and one or more reflective planes disposed within a waveguide for the image light diffracted by the first diffractive optics element.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 24, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Fumika Yamada, Masatoshi Yonekubo, Osamu Yokoyama
  • Publication number: 20140204350
    Abstract: A projector includes: a light source device; an optical modulation device configured to modulate a luminous flux emitted from the light source device in accordance with image information, forming an image; a projection optical device configured to project the image; a shutter device including a light shielding plate which can move into and out of an optical path of the luminous flux ranging from the light source device to the optical modulation device, shields the luminous flux by the light shielding plate moving into the optical path; and a light control device which being disposed on the optical path's upstream side of the shutter device, changes the area of a light passage through which the luminous flux passes, controlling the quantity of the luminous flux.
    Type: Application
    Filed: March 20, 2014
    Publication date: July 24, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Wataru KITAHARA
  • Publication number: 20140204301
    Abstract: An electrooptic device includes: a first substrate member; an TFT disposed on the first substrate member; a capacitor element which is connected with the TFT and in which an insulation film is sandwiched between a pair of electrodes; a first electric wire electrically connected with one of the pair of electrodes; a second electric wire electrically connected with the other one of the pair of electrodes; a contact hole electrically connected with the first electric wire; and another contact hole electrically connected with the second electric wire. Further, the above two contact holes are provided in an insulation layer that is disposed on the first and second electric wires.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 24, 2014
    Applicant: Seiko Epson Corporation
    Inventor: Masashi Nakagawa
  • Publication number: 20140205959
    Abstract: A medium heating device includes a heater that heats a medium, and a medium support member that supports a target heating portion, which is a portion that is heated by the heater in the medium, in which the medium support member has a first component portion that is formed so that a space is provided between the medium and the first component portion when the medium is supported, and a second component portion that is in contact with the medium when the medium is supported.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Yasuo NARAMATSU, Masahiro AKAMINE
  • Publication number: 20140203689
    Abstract: A resonator element has a piezoelectric substrate including a vibration section and a thick section having a thickness which is thicker than that of the vibration section, and a pair of excitation electrodes provided on a surface and aback surface of the vibration section. In addition, the thick section has a second thick section provided along a second outer edge of the vibration section. The second thick section has an outer edge section intersecting with both axes of an X axis and a Z? axis in an end portion opposite to the fixing section in a plan view of the resonator element.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 24, 2014
    Applicant: Seiko Epson Corporation
    Inventor: Naohisa Obata
  • Publication number: 20140202259
    Abstract: A detection unit includes a sensor that detects the presence of force and a force component separation mechanism that separates the magnitude and the direction of the force and a control unit that controls the detection action of the force component separation mechanism based on the detection result of the sensor.
    Type: Application
    Filed: March 25, 2014
    Publication date: July 24, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tomo IKEBE, Sumio UTSUNOMIYA
  • Publication number: 20140203285
    Abstract: An electrooptic device substrate includes a scan line that is provided on an element substrate, a foundation insulating layer, a semiconductor layer provided on the foundation insulating layer, a gate insulating layer, recesses that are provided at both sides of the semiconductor layer so as to penetrate through the foundation insulating layer and the gate insulating layer, a gate electrode that is provided on the gate insulating layer and is electrically connected to the scan line in the recesses, an insulating interlayer that covers the gate insulating layer, the gate electrode, and the recesses, and a data line that is provided on the insulating interlayer so as to overlap with the scan line, the semiconductor layer, the gate electrode, and the recesses. The recesses include first recesses that overlap with the scan line and second recesses that extend to outer sides of the scan line.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 24, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Satoshi Ito, Hiroyuki Oikawa
  • Publication number: 20140203963
    Abstract: A timing signal generating device includes a GPS receiver and a processing unit. The GPS receiver functions as a positioning calculation unit, and receives satellite signals transmitted from GPS satellites and performs positioning calculation based on trajectory information and time information contained in the received satellite signals. Further, the processing unit functions as a position information generation unit, and generates position information of a receiving point based on a mode value or a median value in results of the positioning calculation at a plurality of times by the GPS receiver.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 24, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Hiroyuki Shimada, Yoshiyuki Maki, Noriaki Tanaka