Patents by Inventor Katsumi Okamoto

Katsumi Okamoto 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: 20240290881
    Abstract: A drift layer is formed over a semiconductor substrate which is an SiC substrate. The drift layer includes first to third n-type semiconductor layers and a p-type impurity region. Herein, an impurity concentration of the second n-type semiconductor layer is higher than an impurity concentration of the first n-type semiconductor layer and an impurity concentration of the third n-type semiconductor layer. Also, in plan view, the second semiconductor layer located between the p-type impurity regions adjacent to each other overlaps with at least a part of a gate electrode formed in a trench.
    Type: Application
    Filed: April 18, 2024
    Publication date: August 29, 2024
    Inventors: Yasuhiro OKAMOTO, Nobuo MACHIDA, Koichi ARAI, Kenichi HISADA, Yasunori YAMASHITA, Satoshi EGUCHI, Hironobu MIYAMOTO, Atsushi SAKAI, Katsumi EIKYU
  • Publication number: 20240165974
    Abstract: A relay transport device that is positioned between a recording device, which performs recording on a medium, and a feeding device, which is disposed outside the recording device and which feeds the medium to the recording device, and that relays and transports the medium fed from the feeding device to the recording device is a unit that forms a transport path for transporting the medium, and includes a relay unit, which has a medium discharge section for discharging the medium toward a receiving section of the recording device, and a coupling section, which couples together the relay unit and a support base that supports the relay unit.
    Type: Application
    Filed: November 15, 2023
    Publication date: May 23, 2024
    Inventors: Chiaki SHIMADA, Katsumi OKAMOTO
  • Patent number: 10737897
    Abstract: A medium discharging device includes a discharge roller pair that discharges a medium, a discharge tray disposed below the discharge roller pair in a vertical direction and having a placement surface on which the discharged medium is placed, and a guide member that is advanced and retracted between an advanced position where the guide member is advanced inward in a width direction from opposite sides in the width direction intersecting a discharge direction of the medium and a retracted position where the guide member is retracted to an end portion position side in the width direction. When the guide member is disposed at the advanced position, an upstream side end portion of the guide member in the discharge direction is disposed between a discharge position by the discharge roller pair and a position of the placement surface of the discharge tray, in the vertical direction.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: August 11, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Katsuyuki Kondo, Masayoshi Miyakawa, Katsumi Okamoto
  • Publication number: 20190177107
    Abstract: A medium discharging device includes a discharge roller pair that discharges a medium, a discharge tray disposed below the discharge roller pair in a vertical direction and having a placement surface on which the discharged medium is placed, and a guide member that is advanced and retracted between an advanced position where the guide member is advanced inward in a width direction from opposite sides in the width direction intersecting a discharge direction of the medium and a retracted position where the guide member is retracted to an end portion position side in the width direction. When the guide member is disposed at the advanced position, an upstream side end portion of the guide member in the discharge direction is disposed between a discharge position by the discharge roller pair and a position of the placement surface of the discharge tray, in the vertical direction.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 13, 2019
    Inventors: Katsuyuki KONDO, Masayoshi MIYAKAWA, Katsumi OKAMOTO
  • Patent number: 9834001
    Abstract: There is provided a recording apparatus including a recording head that can eject an ink onto a sheet, a transport unit that transports the sheet to the recording head, a housing that contains the recording head and the transport unit, a case that is arranged on an outer surface of the housing so that the bottom portion thereof is positioned higher than a bottom surface of the housing, and that serves as a holder which holds an ink container containing an ink, and a supply unit that supplies the ink from the ink container to the recording head.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: December 5, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiyuki Tanaka, Takaichi Wada, Tetsuya Takamoto, Katsumi Okamoto, Yasuhiro Matsuo, Isao Momose, Yoshisada Aoki, Tomohiro Yasufuku
  • Patent number: 9150023
    Abstract: A recording apparatus includes a recording head capable of ejecting ink to a sheet; a sheet cassette that holds the sheet; a transport unit that transports the sheet to the recording head; a chassis which contains the recording head and the transport unit and into which the sheet cassette is inserted; an insertion port which is formed in a side surface of the chassis and through which the sheet cassette is inserted; an ink container that contains the ink; a case which is mounted on at least one side surface adjacent to the side surface in which the insertion port of the chassis is formed and accommodates the ink container; and a supply unit (connection tube) that supplies the ink from the ink container to an inside of the chassis. A guard portion with higher rigidity than the case is formed on a lower side of the case.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: October 6, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Katsumi Okamoto, Yasuhiro Matsuo, Masaki Shimomura, Satoshi Iwaya, Atsushi Takei
  • Publication number: 20150258800
    Abstract: There is provided a recording apparatus including a recording head that can eject an ink onto a sheet, a transport unit that transports the sheet to the recording head, a housing that contains the recording head and the transport unit, a case that is arranged on an outer surface of the housing so that the bottom portion thereof is positioned higher than a bottom surface of the housing, and that serves as a holder which holds an ink container containing an ink, and a supply unit that supplies the ink from the ink container to the recording head.
    Type: Application
    Filed: May 27, 2015
    Publication date: September 17, 2015
    Inventors: Yoshiyuki TANAKA, Takaichi WADA, Tetsuya TAKAMOTO, Katsumi OKAMOTO, Yasuhiro MATSUO, Isao MOMOSE, Yoshisada AOKI, Tomohiro YASUFUKU
  • Patent number: 9114943
    Abstract: In a medium transport device, when a unit body is inserted into an installation unit and an opening and closing body is closed with respect to the device main body, the unit body is positioned in a position that configures a portion of a transport pathway as a result of the opening and closing body pressing first target pressing units that are provided in the unit body.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: August 25, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Aoki, Katsumi Okamoto
  • Patent number: 9085433
    Abstract: A medium transport device includes a restricting unit that is provided in a device main body, and that is coupled with an attaching and detaching operation of a unit body, which configures a portion of a transport pathway, to the device main body. The restricting unit changes between a first state that allows the cover to attain a closed state with respect to the device main body and a second state that restricts the cover from attaining a closed state with respect to the device main body.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: July 21, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Aoki, Katsumi Okamoto
  • Patent number: 9067419
    Abstract: There is provided a recording apparatus including a recording head that can eject an ink onto a sheet, a transport unit that transports the sheet to the recording head, a housing that contains the recording head and the transport unit, a case that is arranged on an outer surface of the housing so that the bottom portion thereof is positioned higher than a bottom surface of the housing, and that serves as a holder which holds an ink container containing an ink, and a supply unit that supplies the ink from the ink container to the recording head.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: June 30, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiyuki Tanaka, Takaichi Wada, Tetsuya Takamoto, Katsumi Okamoto, Yasuhiro Matsuo, Isao Momose, Yoshisada Aoki, Tomohiro Yasufuku
  • Publication number: 20150091988
    Abstract: A recording apparatus includes a recording head capable of ejecting ink to a sheet; a sheet cassette that holds the sheet; a transport unit that transports the sheet to the recording head; a chassis which contains the recording head and the transport unit and into which the sheet cassette is inserted; an insertion port which is formed in a side surface of the chassis and through which the sheet cassette is inserted; an ink container that contains the ink; a case which is mounted on at least one side surface adjacent to the side surface in which the insertion port of the chassis is formed and accommodates the ink container; and a supply unit (connection tube) that supplies the ink from the ink container to an inside of the chassis. A guard portion with higher rigidity than the case is formed on a lower side of the case.
    Type: Application
    Filed: September 10, 2014
    Publication date: April 2, 2015
    Inventors: Katsumi OKAMOTO, Yasuhiro MATSUO, Masaki SHIMOMURA, Satoshi IWAYA, Atsushi TAKEI
  • Publication number: 20150061215
    Abstract: In a medium transport device, when a unit body is inserted into an installation unit and an opening and closing body is closed with respect to the device main body, the unit body is positioned in a position that configures a portion of a transport pathway as a result of the opening and closing body pressing first target pressing units that are provided in the unit body.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Takeshi AOKI, Katsumi OKAMOTO
  • Publication number: 20150061216
    Abstract: A medium transport device includes a restricting unit that is provided in a device main body, and that is coupled with an attaching and detaching operation of a unit body, which configures a portion of a transport pathway, to the device main body. The restricting unit changes between a first state that allows the cover to attain a closed state with respect to the device main body and a second state that restricts the cover from attaining a closed state with respect to the device main body.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Inventors: Takeshi AOKI, Katsumi OKAMOTO
  • Publication number: 20140362133
    Abstract: There is provided a recording apparatus including a recording head that can eject an ink onto a sheet, a transport unit that transports the sheet to the recording head, a housing that contains the recording head and the transport unit, a case that is arranged on an outer surface of the housing so that the bottom portion thereof is positioned higher than a bottom surface of the housing, and that serves as a holder which holds an ink container containing an ink, and a supply unit that supplies the ink from the ink container to the recording head.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 11, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshiyuki TANAKA, Takaichi WADA, Tetsuya TAKAMOTO, Katsumi OKAMOTO, Yasuhiro MATSUO, Isao MOMOSE, Yoshisada AOKI, Tomohiro YASUFUKU
  • Patent number: 8851665
    Abstract: There is provided a recording apparatus including an apparatus main body provided with a recording unit which performs recording on a recording medium, an extension unit provided with a containing unit of the recording medium, which is detachably attached to a lower portion of the apparatus main body on a side of a weight direction of the apparatus main body, main body legs which are provided on the lower portion of the apparatus main body and are in contact with a placement surface when the apparatus main body is placed on the placement surface, and gap forming members which are provided in the extension unit, have higher rigidity exhibiting less compressional deformation as compared with the main body legs, and form a gap between the lower portion of the apparatus main body and the extension unit while being in contact with the lower portion of the apparatus main body.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: October 7, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Katsumi Okamoto
  • Patent number: 8807703
    Abstract: A liquid ejection apparatus includes an apparatus main body, a liquid ejection head which is provided on the apparatus main body and ejects liquid onto a recording medium, a draw-out path which is provided on the apparatus main body, a waste liquid unit which is provided on the draw-out path in a detachable manner and reserves waste liquid wastefully ejected from the liquid ejection head, an opening from which a transportation path for transporting the recording medium is exposed, and an opening/closing unit which is provided to be capable of opening and closing the opening, and at least a part of which is located on the draw-out path and covers at least a part of the waste liquid unit in a state where the waste liquid unit is attached to the draw-out path and the opening is closed.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: August 19, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Katsumi Okamoto, Masanori Nakata, Yoshikane Tsuchihashi, Takafumi Ogimura
  • Patent number: 8807739
    Abstract: There is provided a recording apparatus including an apparatus main body including a first placement portion on which a recording medium is placed, a recording unit which performs recording on the recording medium, and a first transport path through which the recording medium is transported from the first placement portion to the recording unit, an extension unit including a second placement portion, which is detachably attached to the apparatus main body, on which the recording medium is placed, and a second transport path capable of communicating from the second placement portion to the first transport path of the apparatus main body, and a detachable member detachably provided in the apparatus main body and exposing at least a part of the second transport path when detached from the apparatus main body.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: August 19, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Katsumi Okamoto
  • Patent number: 8714732
    Abstract: The invention provides a liquid ejecting apparatus which can prevent a target having liquid ejected thereon from warping irrespective of the type of the target. An ink jet printer includes a recording head configured to eject ink from a nozzle formed on a nozzle-formed surface onto a recording sheet being transported from an upstream side to a downstream side, and a plurality of supporting belts arranged so as to oppose the nozzle-formed surface and each having a supporting portion extending along the direction of transport of the recording sheet. The respective supporting belts are arranged so as to be capable of moving along the width direction intersecting the direction of transport of the recording sheet.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: May 6, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Takamasa Ikagawa, Katsumi Okamoto, Makoto Sato
  • Patent number: 8596777
    Abstract: A printer includes a heating roller unit that heats recording paper at a position downstream of a recording head, which is provided at an upstream position, in the direction of the transportation of the recording paper. The recording head ejects ink to the recording paper that is transported from an upstream side to a downstream side. The heating roller unit is disposed along the direction of the width of the recording paper, which intersects with the transportation direction thereof. The heating roller unit is divided into a plurality of areas in the width direction. Heat applied by first areas of the plurality of areas to the recording paper is different from heat applied by second areas, which are adjacent to the first areas in the width direction, to the recording paper.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: December 3, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Katsumi Okamoto
  • Patent number: 8469075
    Abstract: A coating film peeling apparatus for resin material includes: a peeling cylinder, a peeling roll installed therein with a space for a peeling process along an inner wall of the peeling cylinder, a resistance lid disposed to block a discharge port of the peeling cylinder, and a pressure adjustment part for adjusting an outflow rate and internal pressure of the peeling cylinder. The peeling cylinder is constituted by a polygonal-shaped angular columnar body having, as coating film pass-through holes, rows K of small holes and rows L of small holes and projection rings (angular embossments) provided alternately in multiple rows along a direction perpendicular to a rotating direction of the peeling roll.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: June 25, 2013
    Assignee: Satake Corporation
    Inventors: Hidekazu Furukawa, Katsumi Okamoto