Patents by Inventor Toshifumi Sakai

Toshifumi Sakai 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).

  • Publication number: 20180244054
    Abstract: A printing device includes a printing unit that performs printing on a medium using liquid. A liquid container includes a liquid containing chamber, which is capable of containing the liquid supplied to the printing unit, and a liquid inlet, which allows the liquid containing chamber to be filled with the liquid. A shell accommodates the printing unit and a portion of the liquid container. The liquid container includes a projecting portion that projects out of the shell. A protection member covers the projecting portion. The protection member projects out of the shell in a direction that is the same as a direction in which the liquid container projects out of the shell.
    Type: Application
    Filed: March 29, 2016
    Publication date: August 30, 2018
    Inventors: Munehide KANAYA, Eiko YANAGIDA, Toshifumi SAKAI, Nobuhisa NOMOTO
  • Patent number: 9994037
    Abstract: A liquid container is provided which includes a liquid containing section that contains ink, a spout from which the ink contained in the liquid containing section is poured, and a valve mechanism section that allows the ink to be poured by being deformed by action of an external force between the liquid containing section and the spout.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: June 12, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Toshifumi Sakai
  • Publication number: 20180131072
    Abstract: Provided is a detailed configuration regarding a method of transmitting a driving force etc., of an antenna adjustable of an elevation-depression angle and an antenna circumferential angle. A weather radar antenna may include an antenna unit, a column, an elevation-depression-direction drive transmission shaft, and a circumferential-direction drive transmission shaft. The antenna unit may receive at least an electromagnetic wave. The column may support the antenna unit. The elevation-depression-direction drive transmission shaft may transmit a driving force of an elevation-depression-direction drive motor to the antenna. The circumferential-direction drive transmission shaft may transmit a driving force of a circumferential-direction drive motor to the antenna unit.
    Type: Application
    Filed: January 3, 2018
    Publication date: May 10, 2018
    Applicant: FURUNO ELECTRIC CO., LTD.
    Inventors: Mitsuhiko Hataya, Koji Yano, Toshifumi Sakai
  • Publication number: 20180063358
    Abstract: Provided is a scanner having sixteen or fewer sensor chips capable of scanning an A4 document; an optical unit that reduces and focuses an image of an A4 document on the sensor chips; and a generator that synthesizes images of the A4 document read by the sensor chips, and generates image data.
    Type: Application
    Filed: August 14, 2017
    Publication date: March 1, 2018
    Inventors: Takahiro NETSU, Toshifumi SAKAI
  • Publication number: 20180063355
    Abstract: A scanner reads a document using a sensor group and includes an optical member. When a scanning resolution in a main scanning direction is D, and a resolution of the sensor group is S, the optical member causes the sensor group to image light from the document magnified by a magnification ratio n, where n is greater than or equal to D/S and is greater than 1. The sensor group includes a plurality of sensor portions that are arrayed in L rows in a sub-scanning direction, and L is greater than or equal to n and is an integer of 3 or more. Each of the sensor portions reads a magnified image that is magnified by the magnification ratio n at each corresponding position in the main scanning direction of the document and that is guided by the optical member.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Inventors: Takahiro NETSU, Toshifumi SAKAI
  • Publication number: 20180063338
    Abstract: Provided is a scanner having: multiple sensor chips; an optical unit that focuses an image of an A4 document on eighteen or more sensor chips; and a generator that synthesizes images of the A4 document read by the sensor chips, and generates image data.
    Type: Application
    Filed: August 14, 2017
    Publication date: March 1, 2018
    Inventors: Takahiro NETSU, Toshifumi SAKAI
  • Publication number: 20180063359
    Abstract: A scanner system including a generating unit configured to selectively execute either a first process of generating image data from a conveyed document conveyed by a conveyance device, synthesizing the scanned images, and generating image data, or a second process of generating image data from a placed document set on a scanning platen; the second process scanning by a method that, compared with the first process, is less affected by deviation of the document perpendicularly to the scanning platen.
    Type: Application
    Filed: August 14, 2017
    Publication date: March 1, 2018
    Inventors: Takahiro NETSU, Toshifumi SAKAI
  • Patent number: 9866713
    Abstract: A reading device includes a first housing, and a second housing capable of being attached and detached in relation to the first housing, in which the first housing includes a reading unit which reads a document according to a reading mode, and a power transmission circuit which wirelessly supplies power to the second housing according to the reading mode, and in which the second housing includes a power reception circuit which wirelessly receives power from the power transmission circuit.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: January 9, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Yuzo Shiota, Haruyuki Imai, Kuniaki Ueki, Satoshi Shimizu, Toshifumi Sakai
  • Publication number: 20170070629
    Abstract: A reading device includes a first housing, and a second housing capable of being attached and detached in relation to the first housing, in which the first housing includes a reading unit which reads a document according to a reading mode, and a power transmission circuit which wirelessly supplies power to the second housing according to the reading mode, and in which the second housing includes a power reception circuit which wirelessly receives power from the power transmission circuit.
    Type: Application
    Filed: August 8, 2016
    Publication date: March 9, 2017
    Inventors: Yuzo SHIOTA, Haruyuki IMAI, Kuniaki UEKI, Satoshi SHIMIZU, Toshifumi SAKAI
  • Publication number: 20160303863
    Abstract: A liquid container is provided which includes a liquid containing section that contains ink, a spout from which the ink contained in the liquid containing section is poured, and a valve mechanism section that allows the ink to be poured by being deformed by action of an external force between the liquid containing section and the spout.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 20, 2016
    Inventor: Toshifumi SAKAI
  • Patent number: 9350284
    Abstract: In a system for driving an electric motor by an engine generator, there is a possibility that oscillation and d-axis current are increased. In an engine generator system, a power converter (105) controls a generator (104) so that the phase of an oscillating component included in the d-axis current in the rotor magnetic flux direction of the generator (104) advances by 90 degrees or more with respect to the phase of an oscillating component of the identical frequency included in the rotating electric angular frequency of the generator (104), and further using q-axis voltage adjusting device (118) so that the phase of an oscillating component included in the q-axis current advances by 90 degrees or more with respect to the phase of an oscillating component of the identical frequency included in the rotating electric angular frequency of the generator (104).
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: May 24, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Toshifumi Sakai, Koichiro Nagata, Yoshitaka Iwaji, Motomi Shimada
  • Publication number: 20160026244
    Abstract: A GUI (Graphical User Interface) device includes a projection unit that projects an image on a plurality of aerial screens overlapped in a predetermined gaze direction, a detection unit that detects a position of an instruction unit in an aerial region, and a selection unit that selects any one of the plurality of aerial screens as an operation object according to a motion of the detected instruction unit.
    Type: Application
    Filed: July 9, 2015
    Publication date: January 28, 2016
    Inventors: Tomohiro OGAWA, Toshifumi SAKAI
  • Patent number: 9224379
    Abstract: An acoustic decorative sheet includes a film layer, a glass cloth layer, and an adhesive layer separating the film layer from the glass cloth layer. The adhesive layer is adhered to the film layer and the glass cloth layer. The film layer and the adhesive layer have a plurality of micro bores disposed there through. The micro bores have a diameter in a range from 20 to 500 micrometers and number from 2 to 700 microbores per cm2. An acoustic assembly includes the acoustic decorative sheet, a substrate; and an air gap at least partially separating the acoustic decorative sheet from the substrate.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: December 29, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Yoshihiko Takeda, Jiro Hattori, Toshifumi Sakai
  • Patent number: 8922833
    Abstract: A method to configure an apparatus to obtain a color image for printing. The apparatus presents the printing option of converting the color image into a standard monochrome image or a color-highlighted monochrome image. Black colored portions of the original color image are shown to be predominantly darker in the standard monochrome image. Colored portions, of a predetermined color of the original color image, are shown to be predominantly darker in the color-highlighted monochrome image, and black colored portions, of the original color image, are less prominent. The apparatus applies filters to the color image to produce the standard or color-high-lighted monochrome image, and outputs whichever option is selected by the user.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: December 30, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Toshifumi Sakai
  • Publication number: 20140340005
    Abstract: In a system for driving an electric motor by an engine generator, there is a possibility that the effects of harmonics and DC voltage fluctuations of a power converter cause shaft oscillation to increase due to a phenomenon in which current pulsations caused by voltage disturbances at a d-axis and a q-axis are strengthened each other and thus oscillation and d-axis current are increased under the effect of interference between the d-axis and the q-axis.
    Type: Application
    Filed: October 22, 2012
    Publication date: November 20, 2014
    Inventors: Toshifumi Sakai, Koichiro Nagata, Yoshitaka Iwaji, Motomi Shimada
  • Publication number: 20140182967
    Abstract: An acoustic decorative sheet includes a film layer, a glass cloth layer, and an adhesive layer separating the film layer from the glass cloth layer. The adhesive layer is adhered to the film layer and the glass cloth layer. The film layer and the adhesive layer have a plurality of micro bores disposed there through. The micro bores have a diameter in a range from 20 to 500 micrometers and number from 2 to 700 microbores per cm2. An acoustic assembly includes the acoustic decorative sheet, a substrate; and an air gap at least partially separating the acoustic decorative sheet from the substrate.
    Type: Application
    Filed: August 23, 2012
    Publication date: July 3, 2014
    Inventors: Yoshihiko Takeda, Jiro Hattori, Toshifumi Sakai
  • Patent number: 8541971
    Abstract: When applying a high frequency voltage which alternates on positive and negative sides to a permanent magnet synchronous motor, a driving system of synchronous motor switches the applied voltage phase by 120 degrees successively and applies resultant voltages to three phases. A pulsating current generated by applying a high frequency voltage is detected at timing of elapse of a predetermined time ?t since an output voltage of at least one phase has changed from a state in which all output voltages of the three phases of a power converter are positive or negative. Current detection is conducted by using a DC resistor or a phase current sensor provided on a DC bus. A magnetic pole estimation unit calculates the rotor magnetic pole position of the permanent magnet synchronous motor on the basis of differences between positive side and negative side change quantities in three-phase currents obtained from detected current values.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 24, 2013
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Toshifumi Sakai, Yoshitaka Iwaji, Kiyoshi Sakamoto, Yoshiyuki Taguchi, Daigo Kaneko
  • Patent number: 8184346
    Abstract: Facsimile systems, devices, and methods are provided related to transmitting an image from a sending device to a receiving device via a network. One embodiment includes a status information reply unit which replies to a notification request of status information from a sending device by transmitting status information representing status of the receiving-device to the sending device via a network, in which the status information reply unit includes a transmission source classifying portion which determines a class of the sending device and a selected-status information transmitting portion which transmits the status information to the sending device via the network.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: May 22, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Takao Ozawa, Kosuke Matsunaga, Teruhito Kojima, Toshifumi Sakai, Katsunori Nagao, Kiyoshi Yoda, Masanobu Nishitani, Eiji Kubota
  • Patent number: 8177345
    Abstract: A liquid ejecting head including a plurality of nozzle orifices for liquid ejection, a reservoir plate made of rolled metal rolled in a first direction which includes a liquid reservoir communicating with the plurality of nozzle orifices, and a compliance plate made of rolled metal rolled in a second direction, laminated on the reservoir plate, and having a thin portion that is formed by forming a recess which extends in the lengthwise direction in the opposite surface of the reservoir plate from the surface facing the liquid reservoir, the thin portion serving as a wall of the liquid reservoir. The second direction is perpendicular to the longitudinal direction of the recess and the first direction is perpendicular to the second direction.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: May 15, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Toshifumi Sakai, Toru Nagate
  • Patent number: 8172374
    Abstract: A liquid ejecting head including a plurality of nozzle orifices for liquid ejection, a reservoir plate made of rolled metal rolled in a first direction which includes a liquid reservoir which extends in a longitudinal direction that is capable of communicating with the plurality of nozzle orifices, and a compliance plate laminated on the reservoir plate which is made of rolled metal rolled in a second direction, the compliance plate including a compliance portion that forms a surface of the liquid reservoir which is also capable of absorbing the pressure in the liquid reservoir. The second direction is parallel to the longitudinal direction of the liquid reservoir and the first direction is perpendicular to the second direction.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: May 8, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Toshifumi Sakai, Toru Nagate