Patents by Inventor Seiichi SOUMA

Seiichi SOUMA 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: 8550596
    Abstract: A nozzle plate for an inkjet head including a substrate and ink ejecting holes formed in the substrate. An ink-repellent layer is formed on an ink ejecting side surface of the nozzle plate, and portions of the ink-repellant layer around the ink ejecting holes are selectively removed so that portions of the nozzle plate around the ink ejecting holes are exposed. Also, a method of producing a nozzle plate for an inkjet head is provided that includes preparing a nozzle plate which includes a substrate and ink ejecting holes formed in the substrate and has an ink-repellent layer formed on an ink ejecting side surface of the nozzle plate, and selectively removing portions of the ink-repellant layer around the ink ejecting holes to expose portions of the nozzle plate around the ink ejecting holes.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: October 8, 2013
    Assignee: Mimaki Engineering Co., Ltd.
    Inventors: Seiichi Souma, Satoshi Tsubamoto, Isao Tabayashi
  • Publication number: 20110111187
    Abstract: A printed material includes a cloth medium, a printed layer, and a coating layer. The cloth medium is washable. The printed layer is printed on the cloth medium with a water-based pigment ink including an anionic resin by using an inkjet printing method. The coating layer is provided on at least one of an upper side and a lower side of the printed layer by applying a water-based coating agent including anionic water-based resin particles.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 12, 2011
    Applicant: MIMAKI ENGINEERING Co., Ltd.
    Inventors: Seiichi SOUMA, Akira MINEMURA, Isao TABAYASHI
  • Publication number: 20110104460
    Abstract: A printed material includes a cloth medium, a printed layer, and a coating layer. The cloth medium is washable. The printed layer is printed on the cloth medium with a water-based pigment ink including an anionic resin by using an inkjet printing method. The coating layer is provided on at least one of an upper side and a lower side of the printed layer by applying a water-based coating agent including non-ionic water-based resin particles.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 5, 2011
    Applicant: MIMAKI ENGINEERING Co., Ltd.
    Inventors: Seiichi SOUMA, Akira Minemura, Isao Tabayashi
  • Publication number: 20090011200
    Abstract: A printing method for printing on a washable fabric medium by an inkjet system, where the method includes printing on the medium by the inkjet system using a water-based pigment ink containing an anionic resin. The method further includes applying a water-based coating agent containing water-soluble cationic resin particles to the medium before and/or after the printing on the medium.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 8, 2009
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Seiichi Souma, Kazuaki Ikeda, Isao Tabayashi
  • Publication number: 20080297563
    Abstract: A nozzle plate for an inkjet head including a substrate and ink ejecting holes formed in the substrate. An ink-repellent layer is formed on an ink ejecting side surface of the nozzle plate, and portions of the ink-repellant layer around the ink ejecting holes are selectively removed so that portions of the nozzle plate around the ink ejecting holes are exposed. Also, a method of producing a nozzle plate for an inkjet head is provided that includes preparing a nozzle plate which includes a substrate and ink ejecting holes formed in the substrate and has an ink-repellent layer formed on an ink ejecting side surface of the nozzle plate, and selectively removing portions of the ink-repellant layer around the ink ejecting holes to expose portions of the nozzle plate around the ink ejecting holes.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Seiichi Souma, Satoshi Tsubamoto, Isao Tabayashi
  • Publication number: 20080250967
    Abstract: A dye discharging ink for inkjet printing including at least a reducing agent and an amine compound. Embodiments of the dye discharging ink include, as the reducing agent, a sulphur reducing agent such as Rongalite, and, as the amine compound, an alcohol amine compound such as triethanolamine. Embodiments of the dye discharging ink also include a surface active surfactant and/or an antirust agent, and a pH in a range from 9.5 to 11.0. The dye discharging ink for inkjet printing can prevent corrosion of head nozzles due to acidic substances produced by decomposition of a reducing agent, so as to decrease inhibition of linear advancing property of ejected ink, and can prevent decrease in discharging capability due to hydrolysis of the reducing agent.
    Type: Application
    Filed: April 8, 2008
    Publication date: October 16, 2008
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Seiichi SOUMA, Satoshi Tsubamoto, Isao Tabayashi