Patents by Inventor Shuji Sugawara

Shuji Sugawara 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: 10046575
    Abstract: A liquid spray device includes: a liquid spray head including a spray surface provided with a plurality of nozzles that spray liquid to a medium; a conveyance mechanism that includes an opposing surface opposite to the spray surface and conveys the medium in a first direction between the spray surface and the opposing surface; a plurality of protrusions protruding from the spray surface, and arranged in a second direction which is intersecting with the first direction; and a plurality of supports protruding from the opposing surface to support the medium being conveyed, and arranged in the second direction. The protrusions each have at least a part overlapping with a position other than a middle area between the supports adjacent to each other.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: August 14, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Isamu Togashi, Shuji Sugawara, Yoichi Yamada
  • Patent number: 9950532
    Abstract: A manufacturing method of a liquid ejecting head includes providing a stepped region that is formed by half-blanking and has a height different from a plane surface region, and a protrusion that is formed by drawing within the stepped region and protrudes on a liquid ejection side in the plane surface region of a fixing plate defining a liquid ejection surface in which nozzles ejecting liquid are provided; and fixing the liquid ejection section having a flow path member in which a flow path supplying the liquid is provided on a side opposite to a side in which the protrusion protrudes to the flat plate.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 24, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Isamu Togashi, Shuji Sugawara, Yoichi Yamada
  • Publication number: 20180093503
    Abstract: A liquid spray device includes: a liquid spray head including a spray surface provided with a plurality of nozzles that spray liquid to a medium; a conveyance mechanism that includes an opposing surface opposite to the spray surface and conveys the medium in a first direction between the spray surface and the opposing surface; a plurality of protrusions protruding from the spray surface, and arranged in a second direction which is intersecting with the first direction; and a plurality of supports protruding from the opposing surface to support the medium being conveyed, and arranged in the second direction. The protrusions each have at least a part overlapping with a position other than a middle area between the supports adjacent to each other.
    Type: Application
    Filed: March 11, 2016
    Publication date: April 5, 2018
    Applicant: Seiko Epson Corporation
    Inventors: Isamu TOGASHI, Shuji SUGAWARA, Yoichi YAMADA
  • Patent number: 9827763
    Abstract: A liquid ejecting head includes an ejection surface which extends in a first direction (X-direction) and on which a plurality of nozzles ejecting a liquid are distributed; and protrusion sections that are formed on the ejection surface and protrude on a liquid ejection side in which the liquid is ejected. The ejection surface has abutting regions on which a sealing body that seals the plurality of nozzles by surrounding the plurality of nozzles abuts. When projecting the abutting regions and the protrusion sections along a first direction (X-direction) on a virtual line along a second direction (Y-direction) intersecting the first direction, the protrusion sections are disposed on the ejection surface such that projection of the protrusion sections crosses a boundary of projection of the abutting regions.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: November 28, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Isamu Togashi, Shuji Sugawara, Yoichi Yamada
  • Publication number: 20160221339
    Abstract: A liquid ejecting head includes an ejection surface which extends in a first direction (X-direction) and on which a plurality of nozzles ejecting a liquid are distributed; and protrusion sections that are formed on the ejection surface and protrude on a liquid ejection side in which the liquid is ejected. The ejection surface has abutting regions on which a sealing body that seals the plurality of nozzles by surrounding the plurality of nozzles abuts. When projecting the abutting regions and the protrusion sections along a first direction (X-direction) on a virtual line along a second direction (Y-direction) intersecting the first direction, the protrusion sections are disposed on the ejection surface such that projection of the protrusion sections crosses a boundary of projection of the abutting regions.
    Type: Application
    Filed: December 18, 2015
    Publication date: August 4, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Isamu TOGASHI, Shuji SUGAWARA, Yoichi YAMADA
  • Publication number: 20160193835
    Abstract: A manufacturing method of a liquid ejecting head includes providing a stepped region that is formed by half-blanking and has a height different from a plane surface region, and a protrusion that is formed by drawing within the stepped region and protrudes on a liquid ejection side in the plane surface region of a fixing plate defining a liquid ejection surface in which nozzles ejecting liquid are provided; and fixing the liquid ejection section having a flow path member in which a flow path supplying the liquid is provided on a side opposite to a side in which the protrusion protrudes to the flat plate.
    Type: Application
    Filed: December 21, 2015
    Publication date: July 7, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: lsamu TOGASHI, Shuji SUGAWARA, Yoichi Yamada
  • Patent number: 7879929
    Abstract: Quinophthalone compound of Formula (1) or (2), mixed colorant, laser ray transmitting colored resin composition containing thereof, and laser-welded product.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: February 1, 2011
    Assignee: Orient Chemical Industries Co., Ltd.
    Inventors: Shuji Sugawara, Yoshiteru Hatase
  • Publication number: 20070254984
    Abstract: Quinophthalone compound of Formula (1) or (2), mixed colorant, laser ray transmitting colored resin composition containing thereof, and laser-welded product.
    Type: Application
    Filed: October 4, 2005
    Publication date: November 1, 2007
    Applicant: Orient Chemical Industries, Ltd.
    Inventors: Shuji Sugawara, Yoshiteru Hatase
  • Patent number: 7153384
    Abstract: Laser ray transmitting colored thermoplastic resin composition containing a dis-azo salt forming dye consisting of an anionic component from a dis-azo acid dye and an organic ammonium component, said acid dye being represented by Formula (1) below, R1—N?N-E-N?N—R2; ??(1) E: (2), (3), (4); R1, R2: aryl, pyrazolone; one or more of E, R1, R2 have sulfonic acid group, R3, R4: hydrogen atom, alkyl, sulfonic acid group, R5, R6: hydrogen atom, sulfonic acid group, R15: sulfonic acid group. Method of laser welding wherein a contact portion of a laser ray transmitting material comprising the laser ray transmitting colored thermoplastic resin composition above and a laser ray absorbing material is welded by irradiating laser ray so that the laser ray passes through the laser ray transmitting material and is absorbed in the laser ray absorbing material with the laser ray transmitting material and the laser ray absorbing material in contact with each other.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: December 26, 2006
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Shuji Sugawara, Yoshiteru Hatase
  • Patent number: 6858069
    Abstract: To provide a black aqueous ink composition for excellent light and gas fastness, an ink set including the ink composition, and an ink jet recording process using the same, the black aqueous ink composition contains at least a trisazo dye represented by Chemical Formula 31.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: February 22, 2005
    Assignees: Seiko Epson Corporation, Orient Chemical Industries
    Inventors: Tetsuya Aoyama, Kazuhiko Kitamura, Hiroshi Fukumoto, Yoshihiro Sawatari, Shuji Sugawara, Makiko Matsui
  • Publication number: 20050003301
    Abstract: A laser ray transmitting colored thermoplastic resin composition containing an anthrapyridone acid dye represented by formula (1) or (3); method of laser welding wherein a contact portion of a laser ray transmitting material of the laser ray transmitting colored thermoplastic resin composition and a laser absorbent material is welded by irradiating laser ray so that the laser ray transmits the laser ray transmitting material and is absorbed in the laser absorbent material with the laser ray transmitting material and the laser absorbent material in contact with each other.
    Type: Application
    Filed: August 2, 2004
    Publication date: January 6, 2005
    Inventors: Shuji Sugawara, Yoshiteru Hatase
  • Publication number: 20040144483
    Abstract: Laser ray transmitting colored thermoplastic resin composition containing a dis-azo salt forming dye consisting of an anionic component from a dis-azo acid dye and an organic ammonium component, said acid dye being represented by Formula (1) below,
    Type: Application
    Filed: November 5, 2003
    Publication date: July 29, 2004
    Inventors: Shuji Sugawara, Yoshiteru Hatase
  • Publication number: 20040110880
    Abstract: Laser ray transmitting colored thermoplastic resin composition containing a triphenylmethane salt forming dye consisting of an anionic component from a triphenylmethane acid dye and an organic ammonium component, said acid dye being represented by Formula (1) below, 1
    Type: Application
    Filed: November 5, 2003
    Publication date: June 10, 2004
    Inventors: Shuji Sugawara, Yoshiteru Hatase
  • Publication number: 20040040466
    Abstract: To provide a black aqueous ink composition for excellent light and gas fastness, an ink set including the ink composition, and an ink jet recording process using the same, the black aqueous ink composition contains at least a trisazo dye represented by Chemical Formula 31.
    Type: Application
    Filed: October 24, 2002
    Publication date: March 4, 2004
    Applicants: SEIKO EPSON CORPORATION, ORIENT CHEMICAL INDUSTRIES, LTD.
    Inventors: Tetsuya Aoyama, Kazuhiko Kitamura, Hiroshi Fukumoto, Yoshihiro Sawatari, Shuji Sugawara, Makiko Matsui
  • Patent number: 6632932
    Abstract: The objective of the present invention is to provide a high-purity trisazo compound with excellent light resistance that is useful as a coloring matter for a black aqueous ink for ink jet recording and the like. Thus, the present invention provides a trisazo compound represented by the formula: wherein A1 is a group represented by the formula —COOM or —SO3M, A2 is a hydrogen atom or a group represented by the formula —COOM or —SO3M, M is each independently a hydrogen atom, or onium, R is each independently a hydrogen atom, an alkyl group, an alkoxy group and the like, B is a residue of K acid, Nps is a residue of &ggr; acid, J acid, or RR acid.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: October 14, 2003
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Yoshihiro Sawatari, Makiko Matsui, Shuji Sugawara
  • Publication number: 20030187236
    Abstract: The objective of the present invention is to provide a high-purity trisazo compound with excellent light resistance that is useful as a coloring matter for a black aqueous ink for ink jet recording and the like.
    Type: Application
    Filed: October 25, 2002
    Publication date: October 2, 2003
    Inventors: Yoshihiro Sawatari, Makiko Matsui, Shuji Sugawara
  • Patent number: 6153735
    Abstract: Monoazo metal compound of formula [I] which is excellent in charge control or charge-enhancing property, and toner for developing electrostatic images and powdery paint for electrostatic painting incorporating thereof:D.sub.3 (Met).sub.2 [I]D is a ligand based on a monoazo compound of formula [II] or [III], Met is a metal atom, and the 3 molecules of D are coordinated to the 2 atoms of Met: ##STR1## R.sup.1 -R.sup.10, and R.sup.21 -R.sup.28 are each H, halogen, nitro, alkyl or haloalkyl, aryl, aralkyl, --SO.sub.2 N(R.sup.11).sub.2 (R.sup.11 is H, alkyl, aryl, aralkyl), --N(R.sup.12).sub.2 (R.sup.12 is H, lower alkyl, aryl, aralkyl, acyl), --CONH(R.sup.13) (R.sup.13 is H, a lower alkyl, aryl, aralkyl); 2 or more of R.sup.1 -R.sup.10 and/or R.sup.21 -R.sup.28 may bind together to form an aromatic or aliphatic ring.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: November 28, 2000
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Kazuaki Sukata, Shuji Sugawara, Shun-ichiro Yamanaka, Tohru Tsuruhara, Masashi Yasumatsu
  • Patent number: 5990332
    Abstract: Metal compound of formula [I] which is excellent in charge control or charge-enhancing property, and toner for developing electrostatic images and powdery paint for electrostatic painting incorporating thereof: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent a hydrogen, a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, and R.sup.3 and R.sup.4 may bind together to form an aromatic or aliphatic ring which may have one or more substituents of a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; M represents a metal; m represents an integer of 3 or more; n represents an integer of 2 or more.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: November 23, 1999
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Kazuaki Sukata, Tohru Tsuruhara, Shun-Ichiro Yamanaka, Shuji Sugawara, Masashi Yasumatsu
  • Patent number: 5976749
    Abstract: Metal compound of formula [I] which is excellent in charge control or charge-enhancing property, and toner for developing electrostatic images and powdery paint for electrostatic painting incorporating thereof: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent a hydrogen, a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, and R.sup.3 and R.sup.4 may bind together to form an aromatic or aliphatic ring which may have one or more substituents of a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; M represents a metal; m represents an integer of 3 or more; n represents an integer of 2 or more.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: November 2, 1999
    Assignee: Orient Chemical Industries, Ltd
    Inventors: Kazuaki Sukata, Tohru Tsuruhara, Shun-ichiro Yamanaka, Shuji Sugawara, Masashi Yasumatsu
  • Patent number: D728399
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: May 5, 2015
    Assignees: DKK-TOA Corporation, Kurita Water Industries Ltd.
    Inventors: Satoshi Takizawa, Tetsuya Sato, Shuji Sugawara, Yuko Konno, Shintarou Mori, Yukimasa Shimura