Patents Assigned to Seiko Epson Corporation
  • Patent number: 8118412
    Abstract: A liquid ejecting head includes a flow passage forming substrate that includes a plurality of pressure generating chambers juxtaposed to each other and each in communication with a nozzle for ejecting droplets, and piezoelectric elements disposed on the flow passage forming substrate with a diaphragm interposed therebetween. The piezoelectric elements include a lower electrode, a piezoelectric layer, and an upper electrode. The piezoelectric layer tapers downward at its ends. The lower electrode has a width smaller than the width of each of the pressure generating chambers. The piezoelectric layer has a larger width than the lower electrode to cover end faces of the lower electrode. The diaphragm has a top layer formed of a titanium oxide (TiOx) insulator film. The lower electrode has a top layer formed of a lanthanum nickel oxide (LaNiyOx) orientation control layer.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Masato Shimada
  • Patent number: 8118904
    Abstract: A metal powder manufacturing device for manufacturing a metal powder includes a feed for supplying a molten metal, a fluid spout unit, and a course modification unit. The fluid spout unit further includes a channel and an orifice. The channel is provided below the feed, allowing passing of the molten metal supplied from the feed. The orifice is opened at a bottom end of the channel, spouting a fluid into the channel. The above course modification unit is provided below the fluid spout unit, and forcibly changes the traveling direction of a dispersion liquid. This dispersion liquid is composed of multiple fine droplets dispersed into the fluid. The above droplets are a resultant of a breakup caused by a contact between the molten metal and the fluid ejected from the orifice. Here, the dispersion liquid is transported so that the droplets is cooled and solidified in the dispersion liquid in order to manufacture the metal powder.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Atsushi Watanabe
  • Patent number: 8122347
    Abstract: A document editing support device includes: an object obtaining unit that obtains at least one object as data representing at least one of a text and an image included in a document as a target to be edited; a split ratio storage unit that stores a predetermined split ratio; a reference line setting unit that extracts two lines from at least one of a circumscribed polygon and a boundary and sets the extracted lines as reference lines, the circumscribed polygon being of an object other than a target object, a location of which is to be determined relative to at least one object obtained by the object obtaining unit, and the boundary being of a layout area where objects are to be located in the document; a virtual line generation unit that generates a virtual line that splits an interval between the two reference lines set by the reference line setting unit, at a split ratio stored in the split ratio storage unit; and a location unit that determines a location of the target object, the location of which is to b
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Hitoshi Yamakado, Yu Gu, Atsushi Nagahara
  • Patent number: 8120178
    Abstract: A tuning fork vibration device includes: a SOI substrate having a substrate, an oxide layer formed above the substrate and a semiconductor layer formed above the oxide layer; a tuning fork type vibration section that is formed by processing the semiconductor layer and the oxide layer and composed of the semiconductor layer; and a driving section for generating flexural vibration of the vibration section, wherein the vibration section includes a support section and two beam sections formed in a cantilever shape with the support section as a base of the beam sections, and the driving section includes a pair of drivers formed on each of the two beam sections, each of the drivers including a first electrode layer, a piezoelectric layer formed above the first electrode layer and a second electrode layer formed above the piezoelectric layer.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takamitsu Higuchi, Makoto Eguchi
  • Patent number: 8118386
    Abstract: A liquid body discharge device includes: a head; and a plurality of nozzles provided to the head. In the device, a liquid body is discharged from the plurality of nozzles to a liquid body discharged region of a substrate by moving one of the substrate and the head, and the nozzles are aligned in a first alignment direction and a second alignment direction.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Kenji Kojima
  • Patent number: 8120437
    Abstract: An oscillator includes: a vibrator having a first electrode and a second electrode disposed with a gap with the first electrode; a reference voltage supply circuit adapted to supply a reference voltage; and a voltage adjustment circuit having a step-up circuit operating in response to input of clock pulses and adapted to convert the reference voltage into a voltage of a predetermined level and to output the voltage of the predetermined level, wherein the vibrator is configured so as to apply the voltage of the predetermined level, which is output from the voltage adjustment circuit, between the first electrode and the second electrode, and the clock pulses to be input into the step-up circuit are obtained using the vibrator as a source.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Toru Watanabe
  • Patent number: 8120738
    Abstract: A liquid crystal display device with a vertical alignment mode in which a high image quality and a wide viewing angle are secured includes a liquid crystal layer having an initial state of vertical alignment interposed between a pair of substrates opposite to each other. A plurality of alignment control structures including a dielectric protrusion protruded toward the liquid crystal layer from the inner surface of the substrate is provided in a dot area constituting one unit of display. When that the dielectric constant of the dielectric protrusion is ?t1, the dielectric constant of a major axis direction of liquid crystal molecules constituting the liquid crystal layer is ?//, and the dielectric constant of a minor axis direction thereof is ??, the dielectric constants satisfy the expression ??>?//>?t1.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tsuyoshi Maeda
  • Patent number: 8120634
    Abstract: The apparatus is adapted to deflect a light beam from a laser light source for each of the color components by means of a deflection mirror surface which oscillates, thereby making the light beam reciprocally scan in a main scanning direction. In this apparatus, however, only a light beam SL which scans in a first direction (+X) of the main scanning direction is irradiated in an effective image region on a photosensitive member, so as to form a latent image thereon. The resultant latent image is developed to form a toner image. Since image formation is performed using only the light beam SL which scans in the first direction (+X), the images may be formed at the consistent density irrespective of the image types. Furthermore, the scanning directions of the light beams SL for all the color components are uniformly defined to be the first direction (+X), so that the toner images of the respective colors may maintain the consistent density.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Yujiro Nomura, Ken Ikuma, Hiroshi Toyama
  • Patent number: 8119186
    Abstract: Droplets of a liquid are ejected through a plurality of nozzles to a plurality of coating regions on a substrate based on nozzle information including the ejection amount of a droplet of the liquid ejected through each nozzle. According to arrangement information for disposing the liquid, a plurality of droplet groups are disposed in each coating region while the plurality of nozzles and the substrate are scanned for relative movement. A calculation is performed according to the nozzle information and the arrangement information. Adjustment amount is calculated so that the assigned adjustment amounts vary from one droplet group to another. Driving signals, which drive selected nozzles, are set so that combinations of the driving signals give coating amounts that have taken the assigned adjustment amounts into account.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Shinri Sakai
  • Patent number: 8120285
    Abstract: In at least one embodiment of the disclosure, a driving device for a discharge lamp includes an alternating current supply section and a frequency switching section. The alternating current supply section supplies two electrodes of the discharge lamp with an alternating current. The alternating current includes a plurality of modulation periods with each modulation period including a highest frequency term and a lowest frequency term. The frequency switching section varies a frequency of the alternating current non-monotonically between the highest frequency term and the lowest frequency term of the modulation period in response to a predetermined condition being satisfied.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuo Terashima, Shigeyasu Soma, Kentaro Yamauchi
  • Patent number: 8119035
    Abstract: A conductive pattern forming ink for forming a conductive pattern on a substrate by a droplet discharge method includes: metal particles; an aqueous dispersion medium in which the metal particles are dispersed; erythritol; and a polyglycerol compound having a polyglycerol skeleton. In the ink, H shown in the following formula (I) is 0.15 to 0.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Naoyuki Toyoda
  • Patent number: 8120248
    Abstract: A light-emitting device includes a substrate, and a light-emitting element including a lower electrode, a light-emitting function layer, and an upper electrode that are formed on the substrate in that order. At least one auxiliary electrode in a strip shape extends in a first direction on and in contact with the upper electrode. The auxiliary electrode has a cross section taken along the direction intersecting the first direction, having a shape including a tapered portion. The light-emitting device also includes a barrier layer covering the auxiliary electrode and the upper electrode. The barrier layer prevents water and oxygen from penetrating into the light-emitting element.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Susumu Shinto, Shinichi Yotsuya
  • Patent number: 8119036
    Abstract: A conductive pattern forming ink for forming a conductive pattern on a substrate by a droplet discharge method includes: metal particles; an aqueous dispersion medium in which the metal particles are dispersed; mannitol; and a polyglycerol compound having a polyglycerol skeleton. In the ink, H shown in the following formula (I) is 0.10 to 0.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Naoyuki Toyoda
  • Patent number: 8122351
    Abstract: A document edit device includes: an object obtaining unit that obtains objects each being data expressing at least one of a text and an image which are included in a document as an edit target to be edited; an object selection unit that selects at least two target objects from among the objects obtained by the object obtaining unit, the target objects each being an object as a processing target to be processed; a golden rectangle forming unit that forms a golden rectangle having a predetermined positional relationship with at least one target object of the at least two target objects selected by the object selection unit, based on a size or position of the at least one target object; and a position change unit that changes positions of the at least two target objects such that they are inscribed to the golden rectangle formed by the golden rectangle forming unit.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Hitoshi Yamakado, Atsushi Nagahara
  • Patent number: 8118388
    Abstract: Misalignments of dot forming positions are adjusted by selectively using a position adjustment value for a used bi-directional print mode out of a plurality of position adjustment values that are respectively suitable for a plurality of bi-directional print modes including a first bi-directional print mode and a second bi-directional print mode that are made available by changing ink types.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Koichi Otsuki
  • Patent number: 8122126
    Abstract: There is provided a device status notification device that notifies a notification destination, which is connected to a network, of a status change in a device connected to the network through the network. The device status notification device includes a notification destination information table in which a notification destination, to which the status change in the device is notified in a case where there is the status change in the device, is registered, a notification destination validity checking unit that checks whether the notification destination registered in the notification destination information table exists with validity, and a registration deleting unit that deletes the notification destination, of which valid existence cannot be checked by the notification destination validity checking unit, from the notification destination information table.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Masanori Mukaiyama, Hiromu Okada, Takahiro Shigeta
  • Patent number: 8120282
    Abstract: In at least one embodiment of the disclosure a discharge lamp lighting device includes a controller configured to control an AC conversion circuit to perform AC conversion control for controlling the timings at which a polarity of the discharge lamp driving AC current is reversed. The controller is configured to control the power control circuit to perform current control for controlling a current value of the DC current. The controller changes the cumulative energy supplied to each electrode of a discharge lamp in one cycle of the AC current for the discharge lamp driving in accordance with a cyclical pattern. The cyclical pattern includes a plurality of segmented periods during each of which the cumulative energy is maintained at a same level for a plurality of cycles of the AC current for the discharge lamp driving, and a level of the cumulative energy in at least two of the segmented periods differ from each other.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Kentaro Yamauchi
  • Patent number: 8118401
    Abstract: Provided is a printing apparatus that superposedly forms an image layer representing an image and a specific glossy layer that is different from the image layer on a printing medium, including: a first connection unit, a second connection unit, a reception unit, a print head and at least one of specific color nozzle columns and a printing unit, wherein at least the connection unit that can supply the ink to the end-portion specific color nozzle column inside the second connection unit can be connected to a specific gloss agent container containing a specific gloss agent that is used to form the specific glossy layer instead of the specific color ink container, and wherein, when the specific gloss agent container is connected to the second connection unit and the reception unit receives the specific gloss agent as the available ink, the printing unit ejects the specific gloss agent from the end-portion specific color nozzle column to form the specific glossy layer.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Seishin Yoshida
  • Patent number: 8118437
    Abstract: An optical device that includes a light modulation device, a projection optical device, and a retention member that holds the light modulation device and the projection optical device. The retention member includes: a projection optical device attachment section for attach the projection optical device; and a light modulation device attachment section that is provided for attachment of the light modulation device with a protrusion to a side opposite to the projection optical device along an optical-axis direction of the projection optical device, and the projection optical device attachment section includes: a fixing section that fixes the projection optical device substantially at a position of the center of gravity; a support section that is disposed opposing the fixing section in the optical-axis direction, and supports the light modulation device attachment section; and a connection section that connects together the fixing section and the support section.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Nobuyuki Otsuki
  • Publication number: 20120038699
    Abstract: A printing device includes: a driving motor that applies a power rotating a roll body in which a medium is rolled; a driving roller that transfers the power of the driving motor to the roll body; a transport motor that applies a power transporting the medium; a transport roller that is provided further to the downstream side than the roll body in the transport direction of the medium; and a looseness acquiring unit that acquires an looseness between the driving roller and the transport roller. When the looseness is equal to or more than a predetermined looseness, the driving motor is controlled on the basis of the looseness acquired by the looseness acquiring unit. When the looseness is less than the predetermined looseness, the driving motor is controlled on the basis of tension between the driving roller and the transport roller.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 16, 2012
    Applicant: Seiko Epson Corporation
    Inventors: Kenji Hatada, Hitoshi Igarashi