Patents Assigned to Rengo Co., Ltd.
  • Patent number: 11833774
    Abstract: A first scoreline, and a perforated line along which a lid can be severed are formed beforehand in a lid sheet. The portion of the lid sheet along its first adjustment side is cut off in a strip shape by a first cutter. The portion of the lid sheet along its second adjustment side is cut off in a strip shape by a second cutter.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: December 5, 2023
    Assignee: RENGO CO., LTD.
    Inventors: Yoshitsune Tanaka, Hiroyuki Noguchi, Hiroshi Kawado, Chiaki Watanabe, Keiichi Fujitani, Aya Kinugawa, Mikina Soma
  • Patent number: 11149134
    Abstract: A material is provided which comprises cellulose fine fibers and which is capable of suitably acting on resin or rubber uniformly on a high level, and of generating superior action when added to a resin composition. As such a material, cellulose xanthate fine fibers are contained in a resin composition or a resin dispersion.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 19, 2021
    Assignee: RENGO CO., LTD.
    Inventors: Junichi Kubo, Tomoyuki Nakatsubo, Koichi Masakiyo, Hirokuni Tajima, Shozo Sasaki
  • Publication number: 20210139674
    Abstract: A material is provided which comprises cellulose fine fibers and which is capable of suitably acting on resin or rubber uniformly on a high level, and of generating superior action when added to a resin composition. As such a material, cellulose xanthate fine fibers are contained in a resin composition or a resin dispersion.
    Type: Application
    Filed: June 21, 2018
    Publication date: May 13, 2021
    Applicant: RENGO CO., LTD.
    Inventors: Junichi KUBO, Tomoyuki NAKATSUBO, Koichi MASAKIYO, Hirokuni TAJIMA, Shozo SASAKI
  • Patent number: 10662257
    Abstract: Nanofiber that keep crystallinity are obtained from a cellulose material under light load. The nanofiber are obtained by treating a material containing cellulose with 4% by mass or more and 9% by mass or less of an aqueous alkali metal hydroxide solution to produce alkali cellulose, reacting the alkali cellulose with carbon disulfide to give cellulose xanthate, and defibrating the cellulose xanthate. Then, the xanthate is treated with acid or heat to be regenerated into cellulose nanofiber.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 26, 2020
    Assignee: RENGO CO., LTD.
    Inventors: Junichi Kubo, Tomoyuki Nakatsubo, Kenichi Ito, Hirokuni Tajima
  • Patent number: 10619093
    Abstract: The present invention provides a photoluminescent material that emits visible light by irradiation of light, which is a sodalite containing a given amount of a silver atom (excluding a sodalite containing an oxalic acid anion) or a sodalite containing given amounts of a silver atom and a zinc atom.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: April 14, 2020
    Assignee: RENGO CO., LTD.
    Inventors: Kouju Sugiyama, Kaoru Yamaguchi, Shinji Fujiki, Minoru Matsukura, Shogo Fujiwara, Fumio Kurosaki, Akio Taniguchi, Junichi Uchita
  • Patent number: 10597184
    Abstract: A base sheet and a cover sheet are supplied, the height of at least one product which is placed on the base sheet is measured, and second fold lines are formed on the base sheet and the cover sheet such that the second fold lines are spaced from respective first fold lines formed on the respective side portions of the base sheet and the cover sheet and such that the space between each of the first fold lines and the corresponding one of the second fold lines is adjusted based on the value of the measured height of the product. The base sheet is folded, the base sheet and the cover sheet are arranged so that the base sheet crosses the cover sheet, the cover sheet is placed on the base sheet, and the cover sheet is folded to bond the cover sheet to the bottom sheet.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: March 24, 2020
    Assignee: RENGO CO., LTD.
    Inventors: Naho Yamazaki, Takafumi Makiuchi, Takahiro Yagoshi, Masayuki Handa
  • Patent number: 10427828
    Abstract: A corrugated paperboard box is provided in which when flaps are bent, a perforated line along which the flaps can be separated from the box is less likely to break. Such a corrugated paperboard box includes a peripheral wall and top flaps, and is formed, at the boundary area between the peripheral wall and the top flaps, with a groove-shaped reverse scoreline recessed on the side of an outer linerboard, and a pair of groove-shaped recesses recessed on the side of an inner linerboard, and extending in parallel to each other so as to sandwich the area in which the reverse scoreline extends. The corrugated paperboard box is further formed, in one of the groove-shaped recesses, with a perforated line along which the top flaps can be separated from the peripheral wall. The top flaps can be bent along the perforated line toward the inner surface of the peripheral wall.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: October 1, 2019
    Assignee: RENGO CO., LTD.
    Inventors: Taishi Yamada, Takashi Kajizuka, Hidetoshi Tonooka, Eiji Yamahara, Hiromu Ikeda, Taku Furuta, Atsuo Ishikawa, Katsuhiko Yasumoto, Satoshi Mochizuki, Yoichi Nishikawa, Masayoshi Ootani
  • Patent number: 10301058
    Abstract: A locking receiving portion is defined by a first inclined line extending toward a third panel side on a first panel from a branching point on a fold line between the first panel and a second panel, a second inclined line extending toward the third panel side on the second panel from the branching point, and a cut portion extending between a distal end of the first inclined line and a distal end of the second inclined line. The locking receiving portion extends in an inclined manner between the first panel and the second panel in an assembled state. A locking portion is formed on the third panel, and configured to be locked to a cut portion side of the locking receiving portion in an assembled state.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: May 28, 2019
    Assignee: RENGO CO., LTD.
    Inventors: Takafumi Makiuchi, Noriyoshi Azuma, Haruhiko Yamada, Takahiro Okuda, Tokimasa Kuroda, Yoichi Nishikawa
  • Publication number: 20190153312
    Abstract: The present invention provides a photoluminescent material emitting a visible light by irradiation of light, which is zeolite A comprising silver ion, zinc ion and at least one selected from the group consisting of cesium ion and rubidium ion.
    Type: Application
    Filed: May 29, 2017
    Publication date: May 23, 2019
    Applicant: RENGO CO., LTD.
    Inventors: Kouju SUGIYAMA, Toshikazu HANATANI, Kaoru YAMAGUCHI, Shinji FUJIKI, Minoru MATSUKURA, Shogo FUJIWARA, Akio TANIGUCHI, Junichi UCHITA
  • Publication number: 20180273644
    Abstract: Nanofiber that keep crystallinity are obtained from a cellulose material under light load. The nanofiber are obtained by treating a material containing cellulose with 4% by mass or more and 9% by mass or less of an aqueous alkali metal hydroxide solution to produce alkali cellulose, reacting the alkali cellulose with carbon disulfide to give cellulose xanthate, and defibrating the cellulose xanthate. Then, the xanthate is treated with acid or heat to be regenerated into cellulose nanofiber.
    Type: Application
    Filed: December 22, 2016
    Publication date: September 27, 2018
    Applicant: RENGO CO., LTD.
    Inventors: Junichi KUBO, Tomoyuki NAKATSUBO, Kenichi ITO, Hirokuni TAJIMA
  • Patent number: 9994355
    Abstract: A packing box has a bottom panel, end panels raised from first edges of the bottom panel, side panels arranged adjacently to the end panels, edge panels connected to side edges of the end panels via outer panel fold lines, fold-back panels arranged on inner side surfaces of the edge panels, inner panels arranged on inner side surfaces of the end panels, and reinforcing panels continuously formed with the fold-back panels via first fold lines and the inner panels via second fold lines. The reinforcing panel 16 is formed in an inwardly projecting manner between the fold-back panel and the inner panel. Any of the first and second fold lines positioned on a side closer to the outer panel fold line than a projecting top portion is arranged away from the outer panel fold line by a distance.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: June 12, 2018
    Assignee: RENGO CO., LTD.
    Inventors: Atsuo Ishikawa, Yoichi Nishikawa, Takafumi Makiuchi, Masanori Yoshida, Hiroyuki Noguchi, Hiromu Ikeda
  • Publication number: 20180148642
    Abstract: The present invention provides a photoluminescent material that emits visible light by irradiation of light, which is a sodalite containing a given amount of a silver atom (excluding a sodalite containing an oxalic acid anion) or a sodalite containing given amounts of a silver atom and a zinc atom.
    Type: Application
    Filed: May 25, 2016
    Publication date: May 31, 2018
    Applicants: RENGO CO., LTD., UNION SHOWA K.K., SINANEN ZEOMIC CO., LTD.
    Inventors: Kouju SUGIYAMA, Kaoru YAMAGUCHI, Shinji FUJIKI, Minoru MATSUKURA, Shogo FUJIWARA, Fumio KUROSAKI, Akio TANIGUCHI, Junichi UCHITA
  • Patent number: 9938039
    Abstract: A box includes a front receiving panel, a bottom surface panel, a rear surface panel, a top surface panel, and a front surface panel that are integrally connected one to another. Each pair of bottom side panels, rear side panels, top side panels, and front side panels are integrally connected to the respective sides of each of the bottom, rear, top, and front surface panels. The front receiving panel, the bottom and rear surface panels, and the bottom and rear side panels constitute a tray portion of the box, with the remaining panels constituting a lid portion of the box. A cut line for separating the lid portion from the tray portion is formed to pass through one or both of the rear surface panel and the top surface panel.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: April 10, 2018
    Assignee: Rengo Co., Ltd.
    Inventors: Yoichi Nishikawa, Atsuo Ishikawa, Takafumi Makiuchi, Akira Nagaosa, Masayuki Handa, Masanori Yoshida, Hiroyuki Noguchi, Hiromu Ikeda, Kazuyuki Ishii, Hironori Sugita, Tatsuya Fujibayashi
  • Patent number: 9821925
    Abstract: A base sheet and a cover sheet are supplied, the height of at least one product which is placed on the base sheet is measured, and second fold lines are formed on the base sheet and the cover sheet such that the second fold lines are spaced from respective first fold lines formed on the respective side portions of the base sheet and the cover sheet and such that the space between each of the first fold lines and the corresponding one of the second fold lines is adjusted based on the value of the measured height of the product. The base sheet is folded, the base sheet and the cover sheet are arranged so that the base sheet crosses the cover sheet, the cover sheet is placed on the base sheet, and the cover sheet is folded to bond the cover sheet to the bottom sheet.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: November 21, 2017
    Assignee: RENGO CO., LTD.
    Inventors: Naho Yamazaki, Takafumi Makiuchi, Takahiro Yagoshi, Masayuki Handa
  • Publication number: 20170001752
    Abstract: A packing box has a bottom panel, end panels raised from first edges of the bottom panel, side panels arranged adjacently to the end panels, edge panels connected to side edges of the end panels via outer panel fold lines, fold-back panels arranged on inner side surfaces of the edge panels, inner panels arranged on inner side surfaces of the end panels, and reinforcing panels continuously formed with the fold-back panels via first fold lines and the inner panels via second fold lines. The reinforcing panel 16 is formed in an inwardly projecting manner between the fold-back panel and the inner panel. Any of the first and second fold lines positioned on a side closer to the outer panel fold line than a projecting top portion is arranged away from the outer panel fold line by a distance.
    Type: Application
    Filed: September 5, 2014
    Publication date: January 5, 2017
    Applicant: Rengo Co., Ltd.
    Inventors: Atsuo ISHIKAWA, Yoichi NISHIKAWA, Takafumi MAKIUCHI, Masanori YOSHIDA, Hiroyuki NOGUCHI, Hiromu IKEDA
  • Publication number: 20160304236
    Abstract: A box includes a front receiving panel, a bottom surface panel, a rear surface panel, a top surface panel, and a front surface panel that are integrally connected one to another. Each pair of bottom side panels, rear side panels, top side panels, and front side panels are integrally connected to the respective sides of each of the bottom, rear, top, and front surface panels. The front receiving panel, the bottom and rear surface panels, and the bottom and rear side panels constitute a tray portion of the box, with the remaining panels constituting a lid portion of the box. A cut line for separating the lid portion from the tray portion is formed to pass through one or both of the rear surface panel and the top surface panel.
    Type: Application
    Filed: September 30, 2014
    Publication date: October 20, 2016
    Applicant: RENGO CO., LTD.
    Inventors: Yoichi NISHIKAWA, Atsuo ISHIKAWA, Takafumi MAKIUCHI, Akira NAGAOSA, Masayuki HANDA, Masanori YOSHIDA, Hiroyuki NOGUCHI, Hiromu IKEDA, Kazuyuki ISHII, Hironori SUGITA, Tatsuya FUJIBAYASHI
  • Publication number: 20140345235
    Abstract: A base sheet and a cover sheet are supplied, the height of at least one product which is placed on the base sheet is measured, and second fold lines are formed on the base sheet and the cover sheet such that the second fold lines are spaced from respective first fold lines formed on the respective side portions of the base sheet and the cover sheet and such that the space between each of the first fold lines and the corresponding one of the second fold lines is adjusted based on the value of the measured height of the product. The base sheet is folded, the base sheet and the cover sheet are arranged so that the base sheet crosses the cover sheet, the cover sheet is placed on the base sheet, and the cover sheet is folded to bond the cover sheet to the bottom sheet.
    Type: Application
    Filed: January 17, 2013
    Publication date: November 27, 2014
    Applicant: RENGO CO., LTD.
    Inventors: Naho Yamazaki, Takafumi Makiuchi, Takahiro Yagoshi, Masayuki Handa
  • Patent number: 8491141
    Abstract: The present invention provides a silver ion-containing faujasite type zeolite which is a photoluminescent material that emits a visible light by irradiation of ultraviolet ray.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: July 23, 2013
    Assignee: Rengo Co., Ltd.
    Inventors: Kouju Sugiyama, Wuxian Zhang, Kaoru Yamaguchi
  • Patent number: 8383526
    Abstract: A liquid containing a hydrophilic polymer is applied by spreading or impregnation to a porous sheet comprising paper or a nonwoven fabric containing not less than 30% by weight and not more than 100% by weight of hydrophilic fiber to provide a hydrophilic polymer-processed sheet of which the surface and/or the interior of the porous sheet is filled with the hydrophilic polymer, which is made insoluble to water. This sheet is used as a sheet for a total heat exchanger which has higher conductivity of sensible heat and latent heat than conventional sheet for a total heat exchanger that uses a moisture permeable membrane.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: February 26, 2013
    Assignees: Rengo Co., Ltd., Frontier Industrial Co., Ltd.
    Inventors: Fumio Miyagoshi, Masao Fujita, Hidenao Saito, Hirokuni Tajima, Sadao Odajima
  • Patent number: 8277911
    Abstract: An anticorrosion composition is manufactured which contains a water-soluble inorganic acid salt (a) containing at least one of copper and tin, an alkaline component (b), and a binder (c), the equivalent ratio of the water-soluble inorganic acid salt (a) and the alkaline component (b) being 2:0.25 to 2:2. This anticorrosion composition is applied to a fiberboard to manufacture an anticorrosion fiberboard which can absorb reducing sulfur compounds produced from the fiberboard or already present in the atmosphere.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: October 2, 2012
    Assignee: Rengo Co., Ltd.
    Inventor: Yoshinori Ono