Patents Assigned to CHUETSU PULP & PAPER CO., LTD
  • Patent number: 11490616
    Abstract: A plant growth promoting agent which contains cellulose nanofibers and which is directly or indirectly applied to, sprinkled on, or sprayed on a plant. By using cellulose nanofibers having a specific average fiber diameter and a specific average fiber length, agglomeration of the cellulose fibers is thereby suppressed. This enables efficient insecticidal effect to be realized, wherein the insecticidally active ingredient is a non-chemosynthetic material.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 8, 2022
    Assignee: CHUETSU PULP & PAPER CO., LTD
    Inventor: Hiroyuki Tanaka
  • Publication number: 20220071209
    Abstract: Provided is a plant pathogen control agent that is used to control plant pathogens on plants and is a novel method for using cellulose nanofibers. The plant pathogen control agent is a plant pathogen control agent containing plant-derived cellulose nanofibers as active ingredient, in which a surface of a nanofiber-coated layer to be formed by sparging or spraying the plant pathogen control agent onto the foliage or the stems of the plants and then by drying the plant pathogen control agent has hydrophilicity. Examples of the cellulose nanofibers include a plant-derived nanofiber material selected from the group consisting of gramineous plants, broadleaf trees, and needleleaf trees. Examples of the plants to be an application target include cabbage plants, soybean plants, tomato plants, tobacco plants, or coffee tree seedlings. In addition, examples of the plant pathogens to be a control target include causative bacterium, rust fungi, or pathogenic fungi.
    Type: Application
    Filed: September 20, 2019
    Publication date: March 10, 2022
    Applicants: Marubeni Corporation, University of Tsukuba, Chuetsu Pulp and Paper Co., Ltd.
    Inventors: Yasuhiro ISHIGA, Hiroyuki TANAKA
  • Publication number: 20220062149
    Abstract: [Problem] To provide an oil thickener which has high viscosity increasing effect on an oily ingredient such as silicone oil, a non-polar organic compound, a low-polarity organic compound or the like and which has good handlability [Means to Solve the Problem] Surface-hydrophobized cellulose nanofibers for an oil thickener which are cellulose nanofibers having an average thickness of 3 to 200 nm and an average length of 0.1 ?m or larger, and a 1 wt. % aqueous dispersion of which has a viscosity of 700 to 2100 mPa·s, and hydroxyl groups in cellobiose units of which are substituted by vinyl esters and/or organic acid vinyl esters in a substitution degree of 0.2 to 0.8.
    Type: Application
    Filed: April 18, 2018
    Publication date: March 3, 2022
    Applicant: CHUETSU PULP & PAPER CO., LTD.
    Inventors: Tsubasa TSUJI, Takashi NOGITA
  • Patent number: 11090620
    Abstract: A device and method for counter collision treatment. The device includes: first and second nozzles oppositely disposed so as to inject jets of a highly pressurized fluid into a body protective ring; the injection directions of the first and second nozzles are determined so as to intersect with an angle at one point located in front of the nozzle orifices thereof. Further, the jets from the first and second nozzles are caused to collide with each other to thereby effect homogenization of the fluid by impact-fragmentation. Yet further, one of the first and second nozzles is provided with a turning mechanism for enabling the nozzle to turn around the fixed injection direction as the axis of the turn while keeping the injection direction unchanged.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 17, 2021
    Assignee: CHUETSU-PULP AND PAPER CO., LTD.
    Inventors: Hiroyuki Tanaka, Tsugutoshi Nakada
  • Patent number: 10807099
    Abstract: A device and method for preparing a nano-fragmented product. A polysaccharide slurry is circulated in a polysaccharide supply path (3) via a chamber (2). Specifically, using a pump (8), the polysaccharide slurry in a tank (7) is circulated in a circulation path (9) which is formed using a vinyl hose, a rubber hose or the like. On the other hand, another slurry than the polysaccharide slurry is circulated through a second fluid medium supply path (4) as another circulation path via the chamber (2). Specifically, using a pump (11), the slurry other than the polysaccharide slurry in a tank (10) is caused to pass through a heat exchanger (12) and a plunger (13) and thereby circulate in the other circulation path. The slurry other than the polysaccharide slurry circulated in the second fluid medium supply path (4) is orifice-injected against the polysaccharide slurry circulated in the polysaccharide slurry supply path (3) and flowing through the chamber (2).
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: October 20, 2020
    Assignee: CHUETSU PULP & PAPER CO., LTD
    Inventors: Hiroyuki Tanaka, Hiromi Hashiba
  • Patent number: 10428460
    Abstract: A porous body is placed in a rectangular parallelepipedal casing made of a stainless steel to prepare a mold form. A CNF-containing slurry is charged into the mold form, and another porous body is placed on the CNF-containing slurry. If the CNF-containing slurry are enwrapped in a nylon mesh, leakage of the CNF-containing slurry from a gap between the mold form and the porous body or clogging of the porous bodies can be inhibited. The upper and lower porous bodies are heated while applying a load to the CNF-containing slurry for a desired period of time to effect hot pressing, thereby obtaining a desired molded product. This provides a method for molding CNFs which enables a CNF molded product having a three-dimensional configuration to be obtained at a high productivity, and the CNF molded product obtained by the method for molding CNFs.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: October 1, 2019
    Assignee: CHUETSU PULP & PAPER CO., LTD.
    Inventor: Shinichi Hikida
  • Publication number: 20190184348
    Abstract: A device and method for counter collision treatment. The device includes: first and second nozzle means oppositely disposed so as to inject jets of a highly pressurized fluid into a body protective ring; the injection directions of the first and second nozzle means are determined so as to intersect with an angle at one point located in front of the nozzle orifices thereof. Further, the jets from the first and second nozzle means are caused to collide with each other to thereby effect homogenization of the fluid by impact-fragmentation. Yet further, one of the first and second nozzle means is provided with a turning mechanism for enabling the nozzle to turn around the fixed injection direction as the axis of the turn while keeping the injection direction unchanged.
    Type: Application
    Filed: May 12, 2017
    Publication date: June 20, 2019
    Applicant: CHUETSU-PULP AND PAPER CO., LTD.
    Inventors: Hiroyuki TANAKA, Tsugutoshi NAKADA
  • Publication number: 20170313858
    Abstract: A polyolefin resin composition containing: 100 parts by weight of a resin mixture of (A) 1-60% by weight of cellulose nanofibers having an average thickness of 10-200 nm and (B) 99-40% by weight of a polyolefin resin, and (C) 0.2-30 parts by weight of a terpene phenolic compound; the cellulose nanofibers having been obtained by circulating a pulp slurry in a polysaccharide slurry supply path 3 via chamber (2), and on the other hand, circulating an originally polysaccharide-free slurry in a second fluid medium supply path (4).
    Type: Application
    Filed: September 7, 2015
    Publication date: November 2, 2017
    Applicants: CHUETSU PULP & PAPER CO., LTD, LION IDEMITSU COMPOSITES CO., LTD
    Inventors: Hiroyuki TANAKA, Hiromi HASHIBA, Akio NODERA
  • Publication number: 20170314201
    Abstract: A porous body is placed in a rectangular parallelepipedal casing made of a stainless steel to prepare a mold form. A CNF-containing slurry is charged into the mold form, and another porous body is placed on the CNF-containing slurry. If the CNF-containing slurry are enwrapped in a nylon mesh, leakage of the CNF-containing slurry from a gap between the mold form and the porous body or clogging of the porous bodies can be inhibited. The upper and lower porous bodies are heated while applying a load to the CNF-containing slurry for a desired period of time to effect hot pressing, thereby obtaining a desired molded product. This provides a method for molding CNFs which enables a CNF molded product having a three-dimensional configuration to be obtained at a high productivity, and the CNF molded product obtained by the method for molding CNFs.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 2, 2017
    Applicant: CHUETSU PULP & PAPER CO., LTD.
    Inventor: Shinichi HIKIDA
  • Publication number: 20160348315
    Abstract: A device and method for preparing a nano-fragmented product. A polysaccharide slurry is circulated in a polysaccharide supply path (3) via a chamber (2). Specifically, using a pump (8), the polysaccharide slurry in a tank (7) is circulated in a circulation path (9) which is formed using a vinyl hose, a rubber hose or the like. On the other hand, another slurry than the polysaccharide slurry is circulated through a second fluid medium supply path (4) as another circulation path via the chamber (2). Specifically, using a pump (11), the slurry other than the polysaccharide slurry in a tank (10) is caused to pass through a heat exchanger (12) and a plunger (13) and thereby circulate in the other circulation path. The slurry other than the polysaccharide slurry circulated in the second fluid medium supply path (4) is orifice-injected against the polysaccharide slurry circulated in the polysaccharide slurry supply path (3) and flowing through the chamber (2).
    Type: Application
    Filed: December 24, 2014
    Publication date: December 1, 2016
    Applicant: CHUETSU PULP & PAPER CO., LTD
    Inventors: Hiroyuki TANAKA, Hiromi HASHIBA