Patents by Inventor Tokujiro Okuno

Tokujiro Okuno 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: 20120299992
    Abstract: In a transport for reversing a front and a back of a paper so as to print the back of a printing paper after printing the front of the printing paper, an attachment amount of ink to the front of the printing paper is determined for each region of the front, and on the path of the transport, in a predetermined position where the warpage of the opposite direction to the warpage of the swelling curl of the printing medium generated by the attachment of ink to the front of the printing paper is generated in a site of the printing paper having a region in which the amount of ink attachment is determined to be equal to or greater than a predetermined value, the transport of the printing medium waits for a predetermined time.
    Type: Application
    Filed: May 22, 2012
    Publication date: November 29, 2012
    Applicant: Seiko Epson Corporation
    Inventors: Hiroshi Ue, Tokujiro Okuno, Atsushi Sumii
  • Publication number: 20120218361
    Abstract: A recording apparatus includes: a plurality of first ribs provided at predetermined intervals in a direction intersecting with a direction along which a recording target medium is transported; a plurality of second ribs provided at predetermined intervals in the direction intersecting with the direction along which the recording target medium is transported, the plurality of second ribs being provided downstream of the plurality of first ribs for guiding the recording target medium to a downstream side, the plurality of second ribs being provided at an area where the plurality of second ribs can face the recording head; a first member that is made of a resin material that is used as a material of the plurality of first ribs; and a second member that is made of a metal material that is used as a material of the plurality of second ribs.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 30, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tokujiro OKUNO, Hiroshi UE, Atsushi SUMII, Mitsuhiro KOSEKI
  • Patent number: 8047647
    Abstract: A fluid ejecting apparatus includes a supporting member that supports a fluid ejection target medium; a fluid ejecting head that is provided opposite to the supporting member so as to eject fluid toward the supporting member; and a medium ejecting unit that ejects the medium in a first direction while holding the medium in such a manner that the medium is supported by the supporting member. The medium ejecting unit includes a driving roller that is provided at the supporting-member side and is in contact with the medium from the supporting-member side when the medium ejecting unit holds the medium, and a driven roller that is provided at the fluid-ejecting-head side and is in contact with the medium from the fluid-ejecting-head side when the medium ejecting unit holds the medium.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: November 1, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Tokujiro Okuno, Kazuhiro Hashii
  • Patent number: 8042909
    Abstract: A liquid container for a liquid ejection apparatus includes: a case having a liquid containing portion in its interior; a supply portion which is formed on a first side wall of the case, and through which a liquid in the liquid containing portion can flow to an exterior; a contact portion, which can contact a part of a slider of the liquid ejection apparatus to move the slider in a direction in which the liquid container is inserted; and an engagement portion, which is configured to engage a lock portion of the slider. The contact portion and the engagement portion are formed on a second side wall of the case, the second side wall intersecting the first side wall.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: October 25, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Yasuto Sakai, Satoshi Shinada, Tokujiro Okuno, Satoshi Kobayashi, Shuichi Kadota
  • Patent number: 7815181
    Abstract: A recording apparatus includes a recording head, a transport driving roller, and a transport driven roller. The recording head discharges ink onto a transported recording medium, thereby performing recording. The transport driving roller is provided on the upstream side of the recording head in the transport direction and includes driving side roller portions and depressed portions. The driving side roller portions are rotationally driven, thereby transporting the recording medium. The diameter of the depressed portions is smaller than that of the driving side roller portions. The driving side roller portions and the depressed portions are arranged in a direction perpendicular to the transport direction of the recording medium in such a manner that at least one driving side roller portion alternates with at least one depressed portion. The transport driven roller is provided opposite the transport driving roller and includes driven side roller portions and presser rollers.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: October 19, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Tokujiro Okuno
  • Patent number: 7766317
    Abstract: To provide a clutch apparatus that is able to prevent a trigger lever from returning before a toothed portion of a clutch member engages a ratchet wheel and may be reduced in size. A clutch member 93, a lever member 115 that switches from a clutch engaged state to a non-engaged state and a lever pivot gear 111 are provided. An engaging projecting portion 100 is partially formed on the lever pivot gear in a circumferential direction. An engaged projecting portion 129 that is engageable with the engaging projecting portion is partially formed around the lever shaft in a circumferential direction.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: August 3, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Tokujiro Okuno
  • Patent number: 7758041
    Abstract: [Object] To provide a clutch apparatus that can smoothly switch from a clutch engaged state to a clutch non-engaged state, while tooth jump does not occur even with a small-sized clutch apparatus. [Solving Means] A recessed portion 153 is provided in a cam face of a cam 45. A cam shaft 13 is configured to pivot by a predetermined amount as a cam follower 51 is fitted in the recessed portion, and, when the cam initiates to engage the cam follower, it enters a clutch engaged state. A driven side gear 99 is pivoted by a predetermined amount as the cam follower is fitted in the recessed portion and, thereby, a clutch member 93 is rotated by a predetermined amount in a direction in which a toothed portion 94 is spaced apart from a drive side gear 92.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: July 20, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Tokujiro Okuno, Hiroyuki Tajima, Kiyotaka Nakamura
  • Publication number: 20090237480
    Abstract: A fluid ejecting apparatus includes a supporting member that supports a fluid ejection target medium; a fluid ejecting head that is provided opposite to the supporting member so as to eject fluid toward the supporting member; and a medium ejecting unit that ejects the medium in a first direction while holding the medium in such a manner that the medium is supported by the supporting member. The medium ejecting unit includes a driving roller that is provided at the supporting-member side and is in contact with the medium from the supporting-member side when the medium ejecting unit holds the medium, and a driven roller that is provided at the fluid-ejecting-head side and is in contact with the medium from the fluid-ejecting-head side when the medium ejecting unit holds the medium.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 24, 2009
    Applicant: Seiko Epson Corporation
    Inventors: Tokujiro Okuno, Kazuhiro Hashii
  • Publication number: 20090212495
    Abstract: A recording apparatus includes a recording head, a transport driving roller, and a transport driven roller. The recording head discharges ink onto a transported recording medium, thereby performing recording. The transport driving roller is provided on the upstream side of the recording head in the transport direction and includes driving side roller portions and depressed portions. The driving side roller portions are rotationally driven, thereby transporting the recording medium. The diameter of the depressed portions is smaller than that of the driving side roller portions. The driving side roller portions and the depressed portions are arranged in a direction perpendicular to the transport direction of the recording medium in such a manner that at least one driving side roller portion alternates with at least one depressed portion. The transport driven roller is provided opposite the transport driving roller and includes driven side roller portions and presser rollers.
    Type: Application
    Filed: February 25, 2009
    Publication date: August 27, 2009
    Applicant: Seiko Epson Corporation
    Inventor: Tokujiro OKUNO
  • Publication number: 20080291252
    Abstract: A liquid container for a liquid ejection apparatus includes: a case having a liquid containing portion in its interior; a supply portion which is formed on a first side wall of the case, and through which a liquid in the liquid containing portion can flow to an exterior; a contact portion, which can contact a part of a slider of the liquid ejection apparatus to move the slider in a direction in which the liquid container is inserted; and an engagement portion, which is configured to engage a lock portion of the slider. The contact portion and the engagement portion are formed on a second side wall of the case, the second side wall intersecting the first side wall.
    Type: Application
    Filed: July 17, 2008
    Publication date: November 27, 2008
    Inventors: Yasuto Sakai, Satoshi Shinada, Tokujiro Okuno, Satoshi Kobayashi, Shuichi Kadota
  • Patent number: 7455397
    Abstract: A liquid container for a liquid ejection apparatus includes: a case having a liquid containing portion in its interior; a supply portion which is formed on a first side wall of the case, and through which a liquid in the liquid containing portion can flow to an exterior; a contact portion, which can contact a part of a slider of the liquid ejection apparatus to move the slider in a direction in which the liquid container is inserted; and an engagement portion, which is configured to engage a lock portion of the slider. The contact portion and the engagement portion are formed on a second side wall of the case, the second side wall intersecting the first side wall.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: November 25, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Yasuto Sakai, Satoshi Shinada, Tokujiro Okuno, Satoshi Kobayashi, Shuichi Kadota
  • Publication number: 20080185775
    Abstract: [Object] To provide a clutch apparatus that is able to prevent a trigger lever from returning before a toothed portion of a clutch member engages a ratchet wheel and may be reduced in size. [Solving Means] A clutch member 93, a lever member 115 that switches from a clutch engaged state to a non-engaged state and a lever pivot gear 111 are provided. An engaging projecting portion 100 is partially formed on the lever pivot gear in a circumferential direction. An engaged projecting portion 129 that is engageable with the engaging projecting portion is partially formed around the lever shaft in a circumferential direction.
    Type: Application
    Filed: August 3, 2007
    Publication date: August 7, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tokujiro OKUNO
  • Publication number: 20080185776
    Abstract: [Object] To provide a clutch apparatus that can smoothly switch from a clutch engaged state to a clutch non-engaged state, while tooth jump does not occur even with a small-sized clutch apparatus. [Solving Means] A recessed portion 153 is provided in a cam face of a cam 45. A cam shaft 13 is configured to pivot by a predetermined amount as a cam follower 51 is fitted in the recessed portion, and, when the cam initiates to engage the cam follower, it enters a clutch engaged state. A driven side gear 99 is pivoted by a predetermined amount as the cam follower is fitted in the recessed portion and, thereby, a clutch member 93 is rotated by a predetermined amount in a direction in which a toothed portion 94 is spaced apart from a drive side gear 92.
    Type: Application
    Filed: August 3, 2007
    Publication date: August 7, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tokujiro OKUNO, Hiroyuki TAJIMA, Kiyotaka NAKAMURA
  • Publication number: 20080136879
    Abstract: A liquid container for a liquid ejection apparatus includes: a case having a liquid containing portion in its interior; a supply portion which is formed on a first side wall of the case, and through which a liquid in the liquid containing portion can flow to an exterior; a contact portion, which can contact a part of a slider of the liquid ejection apparatus to move the slider in a direction in which the liquid container is inserted; and an engagement portion, which is configured to engage a lock portion of the slider. The contact portion and the engagement portion are formed on a second side wall of the case, the second side wall intersecting the first side wall.
    Type: Application
    Filed: January 2, 2008
    Publication date: June 12, 2008
    Inventors: Yasuto Sakai, Satoshi Shinada, Tokujiro Okuno, Satoshi Kobayashi, Shuichi Kadota
  • Publication number: 20050168545
    Abstract: A liquid container for a liquid ejection apparatus includes: a case having a liquid containing portion in its interior; a supply portion which is formed on a first side wall of the case, and through which a liquid in the liquid containing portion can flow to an exterior; a contact portion, which can contact a part of a slider of the Liquid ejection apparatus to move the slider in a direction in which the liquid container is inserted; and an engagement portion, which is configured to engage a lock portion of the slider. The contact portion and the engagement portion are formed on a second side wall of the case, the second side wall intersecting the first side wall.
    Type: Application
    Filed: December 21, 2004
    Publication date: August 4, 2005
    Inventors: Yasuto Sakai, Satoshi Shinada, Tokujiro Okuno, Satoshi Kobayashi, Shuichi Kadota
  • Patent number: D466920
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: December 10, 2002
    Assignee: Seiko Epson Corporation
    Inventors: Manabu Kawahara, Masahiko Kobayashi, Mikinobu Abe, Tokujiro Okuno, Yosuke Wakamiya
  • Patent number: D482387
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: November 18, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Yoshihiro Tatara, Mikinobu Abe, Tokujiro Okuno