Patents by Inventor Akinori Maekawa

Akinori Maekawa 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: 9688093
    Abstract: An enclosing-sealing device for preparing a sealed matter by sealing an envelope with a content enclosed in the envelope includes a content formation unit, an envelope formation unit, a content delivery unit, a seal unit, a delivery timing determiner, and a delivery controller. The content delivery unit delivers the content delivered from the content formation unit to the envelope formation unit such that the content is enclosed in a sheet of envelope paper while being folded. The seal unit seals the envelope delivered from the envelope formation unit with the content enclosed in the envelope. The delivery timing determiner determines a delivery timing of the content by the content delivery unit based on inputted information about at least one of the content and the envelope. The delivery controller controls the content delivery unit to deliver the content to the envelope formation unit in accordance with the determined delivery timing.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 27, 2017
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Masakazu Kawano, Akinori Maekawa
  • Patent number: 9604815
    Abstract: A sheet folding device includes: a sheet receiving unit with a pair of guide plates to restrict opposite sides of one or a plurality of stacked sheets and a striking portion to be struck by leading ends of the introduced sheets; a roller group to introduce the sheets into the sheet receiving unit, strike the introduced sheets on the striking portion to form a bent portion on the sheets, and nip and fold the formed bent portion and discharge the sheets from the sheet receiving unit; and a curve forming unit to form a curved portion on the sheets, at a position closer to the leading ends of the sheets than a position where the bent portion to be folded by the roller group is formed, the curved portion being curved in a width direction perpendicular to a direction of transfer of the sheets.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: March 28, 2017
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Taku Naitou, Akinori Maekawa
  • Patent number: 9410273
    Abstract: There is provided a fiber bundle that strikes an excellent balance between the properties and performance of the resulting web and the finished products obtained from this web, and cost, ease of work, and productivity. There is also provided a method for manufacturing a web using this fiber bundle. There is also provided a web that is uniform and has excellent soft touch and bulkiness. This is achieved by a fiber bundle with a total denier of 10,000 to 500,000 dtex, obtained by bundling thermoplastic, conjugate, continuous fibers that have a single filament denier of 0.5 to 100 dtex/f and in which the center of gravity of conjugate components varies among the conjugate components in a fiber cross section, wherein the thermoplastic, conjugate, continuous fibers that make up the fiber bundle have a spontaneous crimp of 8 to 30 crimps per 2.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: August 9, 2016
    Assignees: ES FIBERVISIONS CO., ES FIBERVISIONS HONG KONG LIMITED, ES FIBERVISIONS APS, ES FIBERVISIONS LP
    Inventors: Minoru Miyauchi, Yukiharu Simotsu, Akinori Maekawa
  • Patent number: 9139338
    Abstract: The envelope sheet includes a first area provided with a flap, a second area extended from the first area with interposing a first fold line, a third area extended from the second area with interposing a second fold line, and an adhesive pasted area formed on the third area and extended along a direction perpendicular to a feed direction. The envelope sheet is configured to be, in a stuff and seal apparatus, preliminarily folded at the second fold line while a content is stuffed thereinto, and then fed forward together with the content by at least two pairs of the feed rollers. A length of the third area along the feed direction is made equal-to or longer-than a distance between the two pairs of feed rollers. According to the envelope sheet, the content can be prevented from being inadequately stuffed into an envelope transformed from the envelope sheet.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: September 22, 2015
    Assignee: Riso Kagaku Corporation
    Inventors: Tadayuki Wakatabi, Akinori Maekawa
  • Patent number: 9044772
    Abstract: A water application unit includes a reservoir configured to pool water and a water application pad configured to apply the water pooled in the reservoir onto a remoistenable glue portion previously attached to an adhesion position on a sheet being transferred. The water application pad includes a first pad member disposed at a position to be immersed in the reservoir and including first pores for sucking up the water in the reservoir and a second pad member disposed at a position to face the remoistenable glue portion while being in contact with the first pad member and including second pores for applying the water onto the remoistenable glue portion. The second pores has a diameter larger than a diameter of the first pores.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: June 2, 2015
    Assignee: Riso Kagaku Corporation
    Inventor: Akinori Maekawa
  • Publication number: 20140243180
    Abstract: A sheet folding device includes: a sheet receiving unit with a pair of guide plates to restrict opposite sides of one or a plurality of stacked sheets and a striking portion to be struck by leading ends of the introduced sheets; a roller group to introduce the sheets into the sheet receiving unit, strike the introduced sheets on the striking portion to form a bent portion on the sheets, and nip and fold the formed bent portion and discharge the sheets from the sheet receiving unit; and a curve forming unit to form a curved portion on the sheets, at a position closer to the leading ends of the sheets than a position where the bent portion to be folded by the roller group is formed, the curved portion being curved in a width direction perpendicular to a direction of transfer of the sheets.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 28, 2014
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Taku NAITOU, Akinori MAEKAWA
  • Publication number: 20140076960
    Abstract: The envelope sheet includes a first area provided with a flap, a second area extended from the first area with interposing a first fold line, a third area extended from the second area with interposing a second fold line, and an adhesive pasted area formed on the third area and extended along a direction perpendicular to a feed direction. The envelope sheet is configured to be, in a stuff and seal apparatus, preliminarily folded at the second fold line while a content is stuffed threreinto, and then fed forward together with the content by at least two pairs of the feed rollers. A length of the third area along the feed direction is made equal-to or longer-than a distance between the two pairs of feed rollers. According to the envelope sheet, the content can be prevented from being inadequately stuffed into an envelope transformed from the envelope sheet.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 20, 2014
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Tadayuki WAKATABI, Akinori MAEKAWA
  • Publication number: 20130284085
    Abstract: A water application unit includes a reservoir configured to pool water and a water application pad configured to apply the water pooled in the reservoir onto a remoistenable glue portion previously attached to an adhesion position on a sheet being transferred. The water application pad includes a first pad member disposed at a position to be immersed in the reservoir and including first pores for sucking up the water in the reservoir and a second pad member disposed at a position to face the remoistenable glue portion while being in contact with the first pad member and including second pores for applying the water onto the remoistenable glue portion. The second pores has a diameter larger than a diameter of the first pores.
    Type: Application
    Filed: April 24, 2013
    Publication date: October 31, 2013
    Applicant: Riso Kagaku Corporation
    Inventor: Akinori MAEKAWA
  • Patent number: 8216559
    Abstract: A deodorant fiber comprises a thermoplastic resin containing 0.1 to 10 weight %, with respect to the weight of said fiber, of a complex oxide comprising oxides of at least two metals selected from the divalent or trivalent metals, and coated with 0.1 to 5 weight %, with respect to the weight of said fiber, of an agent comprising a surfactant composition comprising 20-80 weight % of the component A and 80-20 weight % of the component B and/or the component C. The A is at least one compound selected from a group consisting of betaine amphoteric compounds, carbonyl compounds and vinyl ether-maleic anhydride copolymers. The B is a nonionic surfactant comprising at least one substance selected from a group consisting of nonionic surfactants based on alkylene oxide adducts and nonionic surfactants based on polyvalent alcohols. The component C is an anionic surfactant comprising at least one substance selected from a group consisting of carbonates, sulfonates, sulfate ester salts and phosphate ester salts.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: July 10, 2012
    Assignee: JNC Corporation
    Inventors: Kazuyuki Sakamoto, Akinori Maekawa
  • Publication number: 20120159899
    Abstract: An enclosing-sealing device for preparing a sealed matter by sealing an envelope with a content enclosed in the envelope includes a content formation unit, an envelope formation unit, a content delivery unit, a seal unit, a delivery timing determiner, and a delivery controller. The content delivery unit delivers the content delivered from the content formation unit to the envelope formation unit such that the content is enclosed in a sheet of envelope paper while being folded. The seal unit seals the envelope delivered from the envelope formation unit with the content enclosed in the envelope. The delivery timing determiner determines a delivery timing of the content by the content delivery unit based on inputted information about at least one of the content and the envelope. The delivery controller controls the content delivery unit to deliver the content to the envelope formation unit in accordance with the determined delivery timing.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Masakazu KAWANO, Akinori MAEKAWA
  • Publication number: 20090208699
    Abstract: There is provided a fiber bundle that strikes an excellent balance between the properties and performance of the resulting web and the finished products obtained from this web, and cost, ease of work, and productivity. There is also provided a method for manufacturing a web using this fiber bundle. There is also provided a web that is uniform and has excellent soft touch and bulkiness. This is achieved by a fiber bundle with a total denier of 10,000 to 500,000 dtex, obtained by bundling thermoplastic, conjugate, continuous fibers that have a single filament denier of 0.5 to 100 dtex/f and in which the center of gravity of conjugate components varies among the conjugate components in a fiber cross section, wherein the thermoplastic, conjugate, continuous fibers that make up the fiber bundle have a spontaneous crimp of 8 to 30 crimps per 2.
    Type: Application
    Filed: August 10, 2007
    Publication date: August 20, 2009
    Applicants: ES FiberVisions Co., Ltd., ES FiberVisions Hong Kong Limited, ES FiberVisions LP, ES FiberVisions ApS
    Inventors: Minoru Miyauchi, Yukiharu Simotsu, Akinori Maekawa
  • Publication number: 20050255078
    Abstract: A deodorant fiber comprises a thermoplastic resin containing 0.1 to 10 weight %, with respect to the weight of said fiber, of a complex oxide comprising oxides of at least two metals selected from the divalent or trivalent metals, and coated with 0.1 to 5 weight %, with respect to the weight of said fiber, of an agent comprising a surfactant composition comprising 20-80 weight % of the component A and 80-20 weight % of the component B and/or the component C. The A is at least one compound selected from a group consisting of betaine amphoteric compounds, carbonyl compounds and vinyl ether-maleic anhydride copolymers. The B is a nonionic surfactant comprising at least one substance selected from a group consisting of nonionic surfactants based on alkylene oxide adducts and nonionic surfactants based on polyvalent alcohols. The component C is an anionic surfactant comprising at least one substance selected from a group consisting of carbonates, sulfonates, sulfate ester salts and phosphate ester salts.
    Type: Application
    Filed: April 25, 2005
    Publication date: November 17, 2005
    Applicants: CHISSO CORPOARTION, CHISSO POLYPRO FIBER COMPANY LIMITED
    Inventors: Kazuyuki Sakamoto, Akinori Maekawa
  • Patent number: 6555244
    Abstract: This invention relates to a propylene series resin sheet that has a large tan &dgr; and high frequency welding characteristics, excellent transparency, low-temperature impact resistance, and surface durability. The propylene series resin sheet is characterized by a mixture of a polypropylene series composition with a weight percentage of 50-99% and an ethylene series copolymer with a weight percentage of 1-50%.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: April 29, 2003
    Assignees: Chisso Corporation, Chisso Petrochemical Corp.
    Inventors: Toshiki Yamamoto, Akinori Maekawa, Takanori Nakashima
  • Patent number: 6495632
    Abstract: This invention relates to a propylene series resin sheet that has a large tan &dgr; and high frequency welding characteristics, excellent transparency, low-temperature impact resistance, and surface durability. The propylene series resin sheet is characterized by a mixture of a polypropylene series composition with a weight percentage of 50-99% and an ethylene series copolymer with a weight percentage of 1-50%.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: December 17, 2002
    Assignees: Chisso Corporation, Chisso Petrochemical Corp.
    Inventors: Toshiki Yamamoto, Akinori Maekawa, Takanori Nakashima
  • Publication number: 20020019489
    Abstract: This invention relates to a propylene series resin sheet that has a large tan &dgr; and high frequency welding characteristics, excellent transparency, low-temperature impact resistance, and surface durability. The propylene series resin sheet is characterized by a mixture of a polypropylene series composition with a weight percentage of 50-99% and an ethylene series copolymer with a weight percentage of 1-50%.
    Type: Application
    Filed: May 23, 2001
    Publication date: February 14, 2002
    Inventors: Toshiki Yamamoto, Akinori Maekawa, Takanori Nakashima