| NIPPON PAPER INDUSTRIES CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120043372 | Cast-coated paper - The present invention aims to provide a cast-coated paper having good coated paper quality and printability combined with the property of decomposing hazardous substances upon exposure to light. | 02-23-2012 |
| 20110303377 | NEWSPRINT PAPER FOR OFFSET PRINTING - A method of manufacturing a newsprint paper for offset printing, includes: selecting a filler or fillers having an average grain size of 0.5 to 5 μm and a zeta potential of 0 mV or above; providing a pulp slurry for making a base paper; adding the filler or fillers to the pulp slurry in an amount of more than 15 percent by weight but less than 40 percent by weight as ash relative to the dry weight of the base paper; and subjecting the resultant slurry to a papermaking machine to obtain the base paper. | 12-15-2011 |
| 20110226428 | Methods for beating pulp, methods for treating process waters, and methods for producing pulp and paper - The first invention aims to provide a method for preparing stiffer bulky pulp at a freeness level comparable to that obtained by mechanical treatments to improve the bulkiness of product paper by searching for a method capable of adjusting freeness while suppressing damage to pulp fibers and internal fibrillation in a process for producing pulp. The second invention aims to strip contaminants deposited on pulp fibers and/or inorganic particles to reduce adhesion of the contaminants and decrease microorganisms in a treatment of process water containing long pulp fiber fractions used in a process for producing pulp and paper, thereby clarifying process water and thus preparing high-quality pulp and paper. | 09-22-2011 |
| 20110203016 | PROCESS FOR PRODUCING PLANT STORAGE ORGAN WITH HIGH PRODUCTION OF RECOMBINANT PROTEIN AND NOVEL RECOMBINANT PROTEIN - The present invention provides a method for highly producing a recombinant protein in a plant storage organ and a GLP-1 derivative. The plant storage organ in which the recombinant protein is highly produced is obtained by transformation with the use of a vector which comprises a recombinant protein gene, a cytokinin-related gene, a drug-resistant gene and a removable DNA element, in which the cytokinin-related gene and the drug-resistant gene exist in the positions so that they can behave together with the DNA element, while the recombinant protein to be expressed in the plant storage organ exists in the position so that it would not behave together with the DNA element. The GLP-1 is produced by using the method, and a derivative having been stabilized against enzymatic digestion is further provided. | 08-18-2011 |
| 20110180224 | Processes for preparing coated printing papers using hardwood mechanical pulps - The present invention provides a process for preparing a coated printing paper, comprising the steps of making a base paper from a stuff containing a hardwood-derived mechanical pulp (LMP) and applying a coating solution containing a pigment and an adhesive by an on-machine coater to provide a coating layer, wherein said steps are continuously performed on machine. According to the present invention, coated printing papers having high quality can be efficiently prepared with high runnability. | 07-28-2011 |
| 20110130281 | THERMOSENSITIVE RECORDING MEDIUM - The present invention provides a thermosensitive recording medium with excellent color developing sensitivity, moist heat resistance and plasticizer resistance, as well as excellent heat resistance, background coloring, light resistance and the like in the printed image. | 06-02-2011 |
| 20110011550 | Tissue papers for household use - The present invention aims to provide soft and pleasant-to-touch tissue papers for household use with high strength. | 01-20-2011 |
| 20100300633 | METHODS FOR PRODUCING COATING BASE PAPERS AND COATED PAPERS - The present invention provides methods for producing a base paper for coated printing paper and a coated paper by neutral papermaking using a roll and blade gap former type paper machine including a drainage mechanism based on a drainage blade immediately downstream of initial drainage via a forming roll, comprising adding a cationic polyacrylamide-based material having a weight-average molecular weight of 10,000,000 or more determined by intrinsic viscosity measurement as a retention aid to a stock to convert it into paper. According to the present invention, the retention, formation and internal bond strength of the stock can be improved. In the present invention, an anionic microparticle and/or a coagulant can also be used. | 12-02-2010 |
| 20100277541 | INKJET RECORDING MEDIUM AND INKJET RECORDING METHOD - An ink jet recording medium having an ink receiving layer containing a binder which containing an acrylonitrile butadiene type copolymer, the butadiene concentration of the copolymer is 50 weight % or more, and an inorganic pigment on one or two sides of a base paper mainly composed of wood pulp, wherein the concentration ratio of the acrylonitrile butadiene type copolymer to 100 parts by weight of the inorganic pigment is from one part by weight to eight parts by weight, while 60 weight % or more of the inorganic pigment is kaolin with particles of 0.4 μm or more and below 4.2 μm which account for 64% or more as the cumulative value of the volumetric basis when measured using a laser diffraction method, and the surface roughness of the ink receiving layer is from 0.6 μm to 1.4 μm when a hard backing is used at a clamp pressure of 1,000 kPa according to JIS P8151. | 11-04-2010 |
| 20100276099 | SIMULATION METHOD, FIBER ORIENTATION CONTROL METHOD AND FIBER ORIENTATION CONTROL APPARATUS - A method includes steps of: expressing changes of velocity components of a paper material at an exit of a slice lip by using a mathematical model, wherein the changes of velocity components are caused by manipulating an edge flow adjustment means (or a side bleed adjustment means) of a headbox when supplying the paper material on a wire; without changing a velocity component of a flow of the paper material in the mathematical model, setting the mathematical model based on an assumption in which a velocity component orthogonally crossing a flow direction of the paper material is proportionally changed by changes of an edge flow (or a side bleed) of a certain response width from the exit of the slice lip; and conducting a forecasting calculation of changes of a fiber orientation profile in a cross direction by using the mathematical model. | 11-04-2010 |
| 20100206503 | METHOD FOR PRODUCING COATED PAPER - The present invention provides a method for producing a coated paper, including steps of coating a base paper coated with an aqueous solution of a water-soluble polymer with a coating liquid containing at least a pigment and an adhesive to produce a coated paper, and calendering the coated paper having a moisture content of not more than 5.5% by weight. The present invention also provides a method for producing a coated paper, including steps of coating a base paper having a moisture content of not more than 4% by weight with a coating liquid containing at least a pigment and an adhesive to produce a coated paper, and calendering the coated paper having a moisture content of not more than 5.5% by weight. | 08-19-2010 |
| 20100180498 | METHOD FOR PRODUCING ROOTED CUTTING OF PINACEAE TREE - The present invention provides a method for producing a rooted cutting which can be applied to | 07-22-2010 |
| 20100170650 | Printability improving agents and papers coated with them - A printability improving agent for use in a neutral newsprint base paper which is printed with ecological inks, containing (I) a cationic copolymer obtained by polymerizing one or more hydrophobic monomer unit(s) selected from styrenes and alkyl acrylates and/or alkyl methacrylates with a quaternary ammonium salt-containing monomer unit, and (II) a copolymer obtained by polymerizing 100 parts by weight of one or more hydrophobic monomer(s) selected from the group above in the presence of 1-10 parts by weight of a surfactant. | 07-08-2010 |
| 20100147479 | Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts, as well as pulp processing equipments - Pulp processing equipment used to produce high-quality recycled pulp with little damage to fibers, high brightness and low residual ink by means of a force selectively acting on fiber surfaces during the process of recycling waste paper is disclosed. Moreover, fiber surfaces are modified by means of a force acting on only the fiber surfaces to obtain high-quality pulp and to render harmless dirts deteriorating pulp quality. A jet system is provided having one or more nozzles for jetting an aqueous slurry containing a material comprising cellulose into a vessel. | 06-17-2010 |
| 20100134576 | FLOTATION APPARATUS - A flotation apparatus F includes a tank | 06-03-2010 |
| 20100108280 | NEWSPRINT PAPER FOR OFFSET PRINTING - A method of manufacturing a newsprint paper for offset printing, includes: selecting a filler or fillers having an average grain size of 0.5 to 5 μm and a zeta potential of 0 mV or above; providing a pulp slurry for making a base paper; adding the filler or fillers to the pulp slurry in an amount of more than 15 percent by weight but less than 40 percent by weight as ash relative to the dry weight of the base paper; and subjecting the resultant slurry to a papermaking machine to obtain the base paper. | 05-06-2010 |
| 20090320164 | METHOD FOR PRODUCTION OF PLANT CELL HAVING CHROMOSOME LOSS - The present invention provides a simple aneuploid production process, applicable to all species, without producing unexpected damage to chromosomes other than a chromosome which is to be disappeared. A vector comprising two site-specific recognition sequences oriented in the opposite direction, or one site-specific recombinase recognition sequence comprising a point-symmetric nucleotide sequence, and a recombinase gene is introduced into a plant cells or a vector comprising two site-specific recognition sequences oriented in the opposite directions or one site-specific recombinase recognition sequence comprising a point-symmetric nucleotide sequence is introduced into a plant cell; a recombinase is allowed to act transiently in the cell during at least growth of the cell; and the cell is cultured and grown; and a cell in which a predetermined chromosome is disappeared is selected. | 12-24-2009 |
| 20090280980 | Thermal recording material - Provided is a thermal recording material superior in color development sensitivity, and having good preservation properties such as in heat resistance, moisture resistance, water resistance and the like. | 11-12-2009 |
| 20090162641 | Coated printing paper - The present invention aims to provide coated printing paper having good printing quality combined with the property of decomposing hazardous substances upon exposure to light and resistance to fading. | 06-25-2009 |
| 20090114360 | APPARATUS FOR TREATING PAPERMAKING FEEDSTOCK - A papermaking raw material processor capable of reforming pulp in papermaking a process using cavitation includes a first pump | 05-07-2009 |
| 20080254239 | Method for Preparation of Thermally Sensitive Recording Medium - A thermally sensitive recording medium characterized to be superior in writing aptitude, printing aptitude, causes less head debris, possesses good water resistance, causes less sticking and is excellent in preservative stability of developed color in nature environment such as heat, water, humid or light, to sebum when handled with hand, oils, plasticizers and solvents can be obtained by following method, that is, a method for preparation of a thermally sensitive recording medium possessing a coating layer formed by applying a coating (A) containing a binder and a coating (B) containing a crosslinking agent on a thermally sensitive recording layer, which is formed on a substrate, and said thermally sensitive recording layer contains a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent comprising, forming an over coating layer by applying said coating (A) and coating (B) separately in accordance with a curtain coating method, wherein the formation of the over coating layer is comprising, after applying one coating, applying another coating in accordance with a curtain coating method without having a drying process between. | 10-16-2008 |
