Patents by Inventor Akihiko Tamura

Akihiko Tamura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11111589
    Abstract: An electrolytic cell for carbon dioxide of an embodiment includes: an anode part including an anode to oxidize water or a hydroxide ion and thus produce oxygen and an anode solution flow path to supply an anode solution to the anode; a cathode part including a cathode to reduce carbon dioxide and thus produce a carbon compound, a cathode solution flow path to supply a cathode solution to the cathode, a gas flow path to supply the carbon dioxide to the cathode, and a hydrophobic porous body disposed between the cathode and the gas flow path; and a separator to separate the anode part and the cathode part from each other.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: September 7, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuki Kudo, Akihiko Ono, Masakazu Yamagiwa, Ryota Kitagawa, Jun Tamura, Yoshitsune Sugano, Takayuki Tsukagoshi, Asahi Motoshige, Satoshi Mikoshiba
  • Publication number: 20210274138
    Abstract: A control method for a position detecting device including a first adjusting step of emitting detection light to a jig for adjustment disposed on a screen and adjusting the detection light to first detection light such that the detection light is emitted to a specific range of the jig for adjustment and a step of setting, in a state in which the detection light has been adjusted to the first detection light, a region including the jig for adjustment as a non-detection area where a detecting section does not detect the detection light as the reflected light from an obstacle, wherein the position detecting device including a light emitting section configured to emit the detection light and the detecting section.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 2, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kohei YANAI, Akihiko TAMURA, Makoto OTANI
  • Patent number: 11105008
    Abstract: A cathode part of an electrochemical reaction device comprises a conductor, a porous body, a reduction catalyst, an electrolytic solution flow path, a first flow path, and a second flow path. The conductor has a conductive surface. The porous body includes a first surface, a second surface, a first porous portion, and a second porous portion. The first surface is in contact with the conductive surface. A contact angle between an inner wall of the second porous portion and water is higher than a contact angle between an inner wall of the first porous portion and the water. The reduction catalyst is supported on the second surface to reduce carbon dioxide. The electrolytic solution flow path faces the reduction catalyst. The first flow path faces the first porous portion. The second flow path faces the second porous portion.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 31, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masakazu Yamagiwa, Yuki Kudo, Akihiko Ono, Satoshi Mikoshiba, Jun Tamura, Ryota Kitagawa, Yoshitsune Sugano, Eishi Tsutsumi, Asahi Motoshige, Takayuki Tsukagoshi
  • Patent number: 11098409
    Abstract: An electrolytic cell for carbon dioxide of an embodiment includes: an anode part including an anode to oxidize water or a hydroxide ion and thus produce oxygen and an anode solution flow path to supply an anode solution to the anode; a cathode part including a cathode to reduce carbon dioxide and thus produce a carbon compound, a cathode solution flow path to supply a cathode solution to the cathode, and a liquid passing member disposed between the cathode and the cathode solution flow path and having a pore allowing the cathode solution to pass through while holding the cathode solution; and a separator to separate the anode part and the cathode part from each other.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: August 24, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuki Kudo, Akihiko Ono, Masakazu Yamagiwa, Ryota Kitagawa, Jun Tamura, Yoshitsune Sugano, Asahi Motoshige, Satoshi Mikoshiba
  • Patent number: 11061494
    Abstract: An electronic pen includes: a communication unit which communicates with a communication target apparatus; a state detection unit which detects a state of the electronic pen decided by a relation with the communication target apparatus; and a control unit which changes an operation of the communication unit according to the state detected by the state detection unit.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: July 13, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akihiko Tamura
  • Patent number: 11016582
    Abstract: A position detecting device includes a light output device which outputs detection light, a detection unit, and a calibration control unit. The detection unit performs a detecting operation detecting an indication position of a first indicator on a basis of reflected light reflected by the first indicator reflecting the detection light, and a detecting operation detecting an indication position of a second indicator on a basis of light emitted by the second indicator having a light emitting function. The calibration control unit executes calibration associating the indication position of the second indicator on the basis of light emitted by the second indicator having the light emitting function with a position on a manipulation surface, and restricts output of the detection light while the calibration is executed.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: May 25, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akihiko Tamura
  • Patent number: 10742943
    Abstract: A projector includes an image projection section, an imager, a calibration processor that performs calibration, an information acquirer that acquires information on the state in which the projector is installed, and an image generator that generates a calibration image corresponding to the state in which the projector is installed, and the calibration processor causes the image projection section to project the calibration image generated by the image generator to perform the calibration.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: August 11, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akihiko Tamura
  • Publication number: 20190306478
    Abstract: A projector includes an image projection section, an imager, a calibration processor that performs calibration, an information acquirer that acquires information on the state in which the projector is installed, and an image generator that generates a calibration image corresponding to the state in which the projector is installed, and the calibration processor causes the image projection section to project the calibration image generated by the image generator to perform the calibration.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko TAMURA
  • Publication number: 20190294264
    Abstract: An electronic pen includes: a communication unit which communicates with a communication target apparatus; a state detection unit which detects a state of the electronic pen decided by a relation with the communication target apparatus; and a control unit which changes an operation of the communication unit according to the state detected by the state detection unit.
    Type: Application
    Filed: March 25, 2019
    Publication date: September 26, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko TAMURA
  • Patent number: 10244197
    Abstract: A projector includes a projection unit that projects a projection image and a control unit that performs calibration. The control unit detects a position of a first detection point in a first symbol, from a first captured image obtained by capturing a first projection image when the projection unit projects the first projection image including the first symbol onto a projection surface, detects a position of a second detection point in a second symbol, based on the position of the first detection point, from a second captured image obtained by capturing a second projection image when the projection unit projects the second projection image including the second symbol onto the projection surface, and performs the calibration based on the position of the second detection point. The second symbol is disposed at a position corresponding to the first symbol and has a shape different from the first symbol.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: March 26, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akihiko Tamura
  • Publication number: 20180321761
    Abstract: A position detecting device includes a light output device which outputs detection light, a detection unit, and a calibration control unit. The detection unit performs a detecting operation detecting an indication position of a first indicator on a basis of reflected light reflected by the first indicator reflecting the detection light, and a detecting operation detecting an indication position of a second indicator on a basis of light emitted by the second indicator having a light emitting function. The calibration control unit executes calibration associating the indication position of the second indicator on the basis of light emitted by the second indicator having the light emitting function with a position on a manipulation surface, and restricts output of the detection light while the calibration is executed.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 8, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko TAMURA
  • Patent number: 10088919
    Abstract: A projector includes a light output device outputting detection light on a screen, a position detection unit detecting an indication position, and a calibration control unit. The position detection unit performs a first detecting operation detecting an indication position by using the detection light, and a second detecting operation detecting an indication position by using light other than the detection light. The calibration control unit executes calibration associating a position detected in the second detecting operation with a position on the screen, and restricts output of the detection light while the calibration is executed.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: October 2, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akihiko Tamura
  • Publication number: 20180255266
    Abstract: A projector includes a projection unit that projects a projection image and a control unit that performs calibration. The control unit detects a position of a first detection point in a first symbol, from a first captured image obtained by capturing a first projection image when the projection unit projects the first projection image including the first symbol onto a projection surface, detects a position of a second detection point in a second symbol, based on the position of the first detection point, from a second captured image obtained by capturing a second projection image when the projection unit projects the second projection image including the second symbol onto the projection surface, and performs the calibration based on the position of the second detection point. The second symbol is disposed at a position corresponding to the first symbol and has a shape different from the first symbol.
    Type: Application
    Filed: February 26, 2018
    Publication date: September 6, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko TAMURA
  • Patent number: 9723279
    Abstract: A projector adapted to project an image includes an imaging section adapted to image a projection surface on which the image is projected, and output an image obtained by imaging, an identification section adapted to identify a projection area in which the image is projected based on the image output by the imaging section, a mask processing section adapted to mask an outside of an area, which includes the projection area identified by the identification section, on the image output by the imaging section, a discrimination section adapted to determine which one of a first state, in which the projector is used alone, and a second state, in which the projector and another projector project images side by side, is set, and a setting section adapted to set an area to be masked by the mask processing section in accordance with a determination result of the discrimination section.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: August 1, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akihiko Tamura
  • Publication number: 20170214894
    Abstract: A projector adapted to project an image includes an imaging section adapted to image a projection surface on which the image is projected, and output an image obtained by imaging, an identification section adapted to identify a projection area in which the image is projected based on the image output by the imaging section, a mask processing section adapted to mask an outside of an area, which includes the projection area identified by the identification section, on the image output by the imaging section, a discrimination section adapted to determine which one of a first state, in which the projector is used alone, and a second state, in which the projector and another projector project images side by side, is set, and a setting section adapted to set an area to be masked by the mask processing section in accordance with a determination result of the discrimination section.
    Type: Application
    Filed: December 27, 2016
    Publication date: July 27, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Akihiko TAMURA
  • Patent number: 9594455
    Abstract: A projector includes a projection section adapted to project a projection image on a projection surface, an imaging section adapted to generate a shot image obtained by shooting a range including the projection image projected by the projection section, a detection section adapted to detect a motion of the projector, and an execution section adapted to execute a predetermined process with respect to a calibration for making a correspondence between a coordinate system of the projection image and a coordinate system of the shot image in a case in which the detection section detects the motion of the projector.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: March 14, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Tamura
  • Patent number: 9224321
    Abstract: A projector includes a deformation ratio calculating unit that calculates a first deformation ratio on a reference point set in a first image when performing a correction process with respect to a first image data, a deformation ratio determination unit that determines a second deformation ratio of the first image based on the first deformation ratio calculated by the deformation ratio calculation unit, a synthesis image generation unit that generates synthesis image data indicating a synthesis image which is generated by synthesizing a second image indicated by second image data and the first image with a size changed based on the second deformation ratio, a correction unit that performs a correction process with respect to the synthesis image data, and a projection unit that projects the synthesis image based on the synthesis image data which is subjected to the correction process.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 29, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Tamura
  • Patent number: 9134814
    Abstract: A projector detects a first input operation and a second input operation using an operation detection section, detects an operation position of the input operation in an operation area in which the input operation can be detected, and notifies the first operation and the operation position when the second operation is not detected within a predetermined time from when the first input operation is detected.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: September 15, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akihiko Tamura
  • Publication number: 20150204658
    Abstract: A projector includes a light output device outputting detection light on a screen, a position detection unit detecting an indication position, and a calibration control unit. The position detection unit performs a first detecting operation detecting an indication position by using the detection light, and a second detecting operation detecting an indication position by using light other than the detection light. The calibration control unit executes calibration associating a position detected in the second detecting operation with a position on the screen, and restricts output of the detection light while the calibration is executed.
    Type: Application
    Filed: January 16, 2015
    Publication date: July 23, 2015
    Inventor: Akihiko TAMURA
  • Patent number: 8885964
    Abstract: A projector includes: a frame image storage unit that stores input image data input to the projector; a block image storage unit that stores a part of the input image data in terms of block image data including N×M (where N and M?2) pixels; a correction processing unit that performs a correction process of correcting a distortion of the image projected onto the projection plane to generate corrected image data which is image data after correction on the basis of the block image data stored in the block image storage unit; and a block image predicting unit that, while the correction processing unit performs the correction process on a predetermined pixel, predicts the block image data necessary for the correction process on a pixel to be processed after the predetermined pixel.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: November 11, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Akihiko Tamura, Takashi Shindo, Makoto Eguchi