Patents by Inventor Tsutomu Matsuda

Tsutomu Matsuda 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: 11960225
    Abstract: An image forming apparatus includes, an image forming portion configured to form a toner image on a sheet using printing toner and apply powder adhesive on the sheet, a fixing portion configured to heat the toner image formed on the sheet and the powder adhesive applied on the sheet by the image forming portion and fix the toner image and the powder adhesive to the sheet, and a bonding portion configured to bond the sheet with the powder adhesive by reheating the sheet having been heated by the fixing portion. The bonding portion is arranged above the image forming portion.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: April 16, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Koji Yamaguchi, Kohei Matsuda, Hiroki Ogino, Yasushi Katsuta, Kaori Noguchi, Junko Hirata, Akira Kuroda, Yuki Nishizawa, Tsutomu Shimano, Toru Oguma
  • Patent number: 7378458
    Abstract: The invention provides a method for preparing an ink having constituents of a water-soluble dye having a water-soluble solubilizing group of at least one of a sulfonic group and a carboxyl group, water, a water-soluble substance that is condensation-polymerized in the absence of the water, a water-soluble medium and an additive including at least one of an organic acid salt and an inorganic acid salt. This method includes a first mixing step of mixing at least the dye and the water-soluble substance out of the constituents of the ink excluding the additive; a second mixing step of mixing a mixture obtained in the first mixing step and the additive; and a pH adjusting step, performed before the second mixing step, of preparing a solution including the mixture or a solution including the additive while adjusting the solution to a given pH range by using a pH adjuster.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: May 27, 2008
    Assignees: Matsushita Electric Industrial Co., Ltd., Ricoh Company, Ltd.
    Inventors: Hidekazu Arase, Mamoru Soga, Masaichiro Tatekawa, Shigeru Kusakata, Tsutomu Matsuda, Masashi Itoh
  • Patent number: 7368007
    Abstract: An ink-jet recording ink contains at least a colorant, a moisturizer, water and a water-soluble substance capable of undergoing polycondensation along with vaporization of the water, in which the colorant is a chelate azo dye.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: May 6, 2008
    Assignees: Ricoh Company, Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Shigeru Kusakata, Tsutomu Matsuda, Masashi Itoh, Mamoru Soga, Hidekazu Arase, Masaichiro Tatekawa
  • Patent number: 7152968
    Abstract: An ink composition containing a colorant, a humectant, water, and a water-soluble substance that begins to be condensation-polymerized as the water evaporates is ejected such that drops of the ink composition are adhered onto a print material 41 whose surface is acidic, whereby an image is formed on the print material 41.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: December 26, 2006
    Assignees: Matsushita Electric Industrial Co., Ltd., Ricoh Co., Ltd.
    Inventors: Mamoru Soga, Hidekazu Arase, Masaichiro Tatekawa, Keishi Taniguchi, Tsutomu Matsuda, Masashi Ito, Takamichi Enomoto
  • Patent number: 6929686
    Abstract: In an ink composition used for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that begins to be condensation-polymerized as the water evaporates, a condensation-polymerization accelerating agent for accelerating the condensation-polymerization of the water-soluble substance is further contained.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: August 16, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mamoru Soga, Hidekazu Arase, Masaichiro Tatekawa, Keishi Taniguchi, Tsutomu Matsuda, Masashi Ito, Takamichi Enomoto
  • Publication number: 20050126966
    Abstract: It is an object of the present invention to provide a membrane separation apparatus and a membrane separation process that are unlikely to cause membrane fouling and plugging, capable of achieving membrane separation even with relatively low flow rate of water, have an excellent membrane packing density, and are unlikely to cause deposition of foreign components in the apparatus. In order to achieve the above object, according to the present invention, vessel-type inner casings are disposed in a pressure vessel along the longitudinal axis thereof, in which the pressure vessel has a water inlet at a first end and a concentrate outlet at a second end. A flow-regulating plate is disposed on the side of the water inlet of the pressure vessel. Stacks of membrane separation units are respectively disposed in the inner casings, and spacers are disposed between the adjacent membrane separation elements. The spacers also serve as sealing members.
    Type: Application
    Filed: May 14, 2003
    Publication date: June 16, 2005
    Inventors: Katsuyoshi Tanida, Shinichi Nonaka, Mitsushige Shimada, Tsutomu Matsuda, Kiyoshi Hirai, Masahiro Uemura, Kazutaka Takata, Yutaka Ito, Susumu Hasegawa
  • Publication number: 20050005817
    Abstract: An ink-jet recording ink contains at least a colorant, a moisturizer, water and a water-soluble substance capable of undergoing polycondensation along with vaporization of the water, in which the colorant is a chelate azo dye.
    Type: Application
    Filed: May 28, 2004
    Publication date: January 13, 2005
    Inventors: Shigeru Kusakata, Tsutomu Matsuda, Masashi Itoh, Mamoru Soga, Hidekazu Arase, Masaichiro Tatekawa
  • Publication number: 20040208784
    Abstract: Method for sterilizing infectious waste water and a system thereof disclosed in the present invention comprise pump feeding step A, heating/sterilization step B, drainage step C, cleaning step D and vacuum suction step E. The pump feeding step A is a step wherein infectious waste water in a raw water tank is pumped to a tank body of a sterilization tank, the heating/sterilization step B is a step wherein infectious waste water pooled into the tank body is indirectly heated to sterilize the infectious waste water, the drainage step C is a step in which waste water treated by heating/sterilization is discharged from the tank body, the cleaning step D is a step in which after the drainage step, washing water is showered to clean the tank body.
    Type: Application
    Filed: February 10, 2004
    Publication date: October 21, 2004
    Applicant: NEC AMENIPLANTEX, LTD.
    Inventors: Tsutomu Matsuda, Nobuyuki Machida, Yuji Arai, Yoshiaki Itoh
  • Publication number: 20040198867
    Abstract: The invention provides a method for preparing an ink having constituents of a water-soluble dye having a water-soluble solubilizing group of at least one of a sulfonic group and a carboxyl group, water, a water-soluble substance that is condensation-polymerized in the absence of the water, a water-soluble medium and an additive including at least one of an organic acid salt and an inorganic acid salt. This method includes a first mixing step of mixing at least the dye and the water-soluble substance out of the constituents of the ink excluding the additive; a second mixing step of mixing a mixture obtained in the first mixing step and the additive; and a pH adjusting step, performed before the second mixing step, of preparing a solution including the mixture or a solution including the additive while adjusting the solution to a given pH range by using a pH adjuster.
    Type: Application
    Filed: April 1, 2004
    Publication date: October 7, 2004
    Inventors: Hidekazu Arase, Mamoru Soga, Masaichiro Tatekawa, Shigeru Kusakata, Tsutomu Matsuda, Masashi Itoh
  • Publication number: 20040041890
    Abstract: An ink composition containing a colorant, a humectant, water, and a water-soluble substance that begins to be condensation-polymerized as the water evaporates is ejected such that drops of the ink composition are adhered onto a print material 41 whose surface is acidic, whereby an image is formed on the print material 41.
    Type: Application
    Filed: June 10, 2003
    Publication date: March 4, 2004
    Inventors: Mamoru Soga, Hidekazu Arase, Masaichiro Tatekawa, Keishi Taniguchi, Tsutomu Matsuda, Masashi Ito, Takamichi Enomoto
  • Publication number: 20040031418
    Abstract: In an ink composition used for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that begins to be condensation-polymerized as the water evaporates, a condensation-polymerization accelerating agent for accelerating the condensation-polymerization of the water-soluble substance is further contained,
    Type: Application
    Filed: June 4, 2003
    Publication date: February 19, 2004
    Inventors: Mamoru Soga, Hidekazu Arase, Masaichiro Tatekawa, Keishi Taniguchi, Tsutomu Matsuda, Masashi Ito, Takamichi Enomoto
  • Patent number: 5412114
    Abstract: The present invention relates to an improvement in the process for preparing a calixarene derivative in which the rotation of its benzene units are hindered and which comprises replacing all or a part of the hydrogen atoms of the hydroxyl groups of a calixarene derivative represented by the general formula: ##STR1## and is characterized by conducting the reaction in the presence of an alkaline earth metal. According to the present invention, an asymmetric calixarene derivative having a "cone" conformation can be selectively prepared by virtue of the template effect of the metal.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: May 2, 1995
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Seiji Shinkai, Tsutomu Matsuda, Takashi Arimura, Hirosuke Kawabata, Kozo Tachibana
  • Patent number: 5316834
    Abstract: A fiber-reinforced thermoplastic sheet such as a flame-resistant, fiber-reinforced thermoplastic sheet comprising at least one first layer formed by impregnating a woven or knitted fabric of continuous carbon fibers with a matrix resin of a thermoplastic resin and at least one second layer formed by impregnating a fiber structure material of a heat-resistant fiber with a matrix resin of a thermoplastic resin, the above first layer(s) and the second layer(s) being laminated integrally, the second layer having the heat-resistant fibers substantially uniformly distributed in the matrix resin in the cross section of the sheet and substantially having no voids of which the diameter exceeds the fiber diameter of the heat-resistant fibers, the fiber structure material, used in the second layer, having a fiber-entangling strength of at least 1.0 kg/mm.sup.2 in any directions crossing at right angles; and a process for the production thereof.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: May 31, 1994
    Assignee: Teijin Limited
    Inventors: Tsutomu Matsuda, Yoh Goto, Tatsuya Shibata
  • Patent number: 5231196
    Abstract: The present invention relates to an improvement in the process for preparing a calixarene derivative in which the rotation of its benzene units are hindered and which comprises replacing all or a part of the hydrogen atoms of the hydroxyl groups of a calixarene derivative represented by the general formula: ##STR1## and is characterized by conducting the reaction in the presence of an alkaline earth metal. According to the present invention, an asymmetric calixarene derivative having a "cone" conformation can be selectively prepared by virtue of the template effect of the metal.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: July 27, 1993
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Seiji Shinkai, Tsutomu Matsuda, Takashi Arimura, Kirosuke Kawabata, Kozo Tachibana
  • Patent number: 5089359
    Abstract: An organic secondary battery comprising an anode including an anode-active material, a cathode including a cathode-active material and an electrolytic medium, in which at least the cathode-active material consists essentially of a benzene polymer, and a method of producing the benzene polymer by electrolytic polymerization with anodic oxidation of a benzene or benzene derivative monomer in an electrolytic solution.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: February 18, 1992
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiyuki Ohsawa, Tsutomu Matsuda, Koji Uji-Ie, Hiroshi Nishihara
  • Patent number: 4935319
    Abstract: An organic secondary battery comprising an anode including an anode-active material, a cathode including a cathode-active material and an electrolytic medium, in which at least the cathode-active material consists essentially of a benzene polymer, and a method of producing the benzene polymer by electrolytic polymerization with anodic oxidation of a benzene or benzene derivative monomer in an electrolytic solution.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: June 19, 1990
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiyuki Ohsawa, Tsutomu Matsuda, Koji Uji-Ie, Hiroshi Nishihara
  • Patent number: 4497887
    Abstract: A thermal development type diazo copying material comprising a support material and a photosensitive layer formed on the support material, which photosensitive layer comprises a diazo compound, a coupling component and a thermo-fusible auxiliary coloring agent, and which coupling component is capsulated by a hydrophobic polymeric material with a softening point ranging from 50.degree. C. to 150.degree. C. selected from the group consisting of hydrophobic polyester resins, hydrophobic cellulose resins, hydrophobic polyamide resins and hydrophobic polyurethane resins.
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: February 5, 1985
    Assignee: Ricoh Compay, Ltd.
    Inventors: Nobuyoshi Watanabe, Tsutomu Matsuda
  • Patent number: 4486527
    Abstract: A thermo-developable type diazo copying material including a substrate and a heat sensitive recording layer, superposed on said substrate, which consists essentially of a diazo compound, a coupler and a heat-fusible color assistant, characterized in that said heat sensitive recording layer is of the multilayered type comprising a diazo compound-containing layer and a coupler-containing layer, and said coupler is composed of one or two or more of the compounds having the following general formula: ##STR1## wherein X is hydrogen, halogen, an alkyl group having 1-4 carbon atoms or an alkoxyl group having 1-4 carbon atoms; R.sup.1 is an alkyl group having 10-25 carbon atoms; and R.sup.2 is hydrogen or an alkyl group having 1-30 carbon atoms.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: December 4, 1984
    Assignee: Ricoh Company, Ltd.
    Inventors: Norio Kurisu, Tsutomu Matsuda, Masaru Shimada, Keishi Kubo
  • Patent number: 4467024
    Abstract: A process for the production of a thermo-developable type diazo copying material which comprises the steps of adding a heat fusible color assistant having a melting point of 50.degree. to 150.degree. C. to at least one selected from the group consisting of (a) an aqueous dispersion A containing a diazonium salt and fine particles of a hydrophobic resin consisting of a polymer of vinyl chloride, vinylidene chloride, styrene, acrylic ester, mechacrylic ester or olefin or a copolymer containing at least one member of aforesaid monomers as the constitution unit or a mixture of said polymer with said copolymer and (b) an aqueous solution or dispersion B containing coupler; then applying these aqueous dispersion A and aqueous solution or dispersion B onto a substrate in the order named; and drying same.
    Type: Grant
    Filed: December 1, 1982
    Date of Patent: August 21, 1984
    Assignee: Ricoh Co., Ltd.
    Inventors: Norio Kurisu, Tsutomu Matsuda, Hideo Watanabe, Nobuyoshi Watanabe
  • Patent number: 4416967
    Abstract: A one-component or binary type diazo copying element comprises a substrate, a pre-coat layer overlying the substrate, said pre-coat layer being consisted essentially of fine particle silica and a specific copolymer having a glass transition temperature in the range of -20.degree. C. to 50.degree. C., and a diazo photosensitive layer overlying the pre-coat layer.
    Type: Grant
    Filed: April 27, 1982
    Date of Patent: November 22, 1983
    Assignee: Ricoh Co., Ltd.
    Inventors: Tsutomu Matsuda, Takeo Hirabayashi, Takeshi Yanagihara, Shinjiro Sakurai