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Assignee: Nippon Paper Industries Co., Ltd.


Location: Tokyo, JP
No. of patents: 164

1          
NumberTitleIssue Date
8181790Flotation apparatus
A flotation apparatus F includes a tank 1 for receiving a liquid raw material, and introduces air into the tank 1 to generate bubbles for adsorbing print ink in the liquid raw material to the bubbles, thereby floating and separating the print ink. The ...
05/22/2012
8129307Thermosensitive recording medium
The present invention provides a thermosensitive recording medium, which is excellent in stamping ability, anti-scratching ability, and water and plasticizer resistance of image area as well as in recording sensitivity, image quality and storage stability. The prese...
03/06/2012
8123909Apparatus for treating papermaking feedstock
A papermaking raw material processor capable of reforming pulp in papermaking a process using cavitation includes a first pump 5 jets jet liquid and second pump 6 jets suspension containing; e.g., pulp fibers into a processing unit inside which cavitat...
02/28/2012
8088254Methods 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...
01/03/2012
8062993Developer mixture for thermal recording materials and thermal recording materials
The present invention relates to a developer mixture for a thermal recording material, which comprises a mixture of the first organic developer comprising a condensate or a condensed composition represented by the formula (I):
11/22/2011
8043473Method of deinking recovered paper
The object of the present invention is to provide a process for producing deinked pulp from recovered paper containing stickies while preventing excessive reduction in the size of stickies, lowering the COD of effluents, and producing deinked pulp with a smaller res...
10/25/2011
8025924Cast-coated papers and processes for preparing thereof
The present invention aims to provide a cast-coated paper having good sheet gloss, printability and productivity and a process for preparing it. Herein disclosed is a cast-coated paper obtained by applying a cast coating layer comprising a pigment and an adhesive on...
09/27/2011
8012312Cellulose-based fibrous materials
The present invention aims to provide cellulose-based fibrous materials for obtaining papers and sheets having low density, high surface quality, good size stability despite of high strength, and high opacity. Cellulose-based fibrous materials having external fibril...
09/06/2011
7967947Methods 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...
06/28/2011
7947876Plant and plant storage organ having GLP-1 derivative accumulated therein and method of producing the same
The present invention is regarding plants and plant storage organs thereof in which GLP-1 derivatives are accumulated, and methods of producing them. The transgenic plants and plant storage organs thereof accumulate tandem repeated GLP-1 derivatives cleavable with i...
05/24/2011
7901542Coated papers for newsprint inks and processes for preparing them
The present invention aims to provide coated papers for newsprint inks having fast ink drying properties comparable to those of conventional newsprint papers, without stickiness, and having good reproduction and sharpness of printed images comparable to those of coa...
03/08/2011
7828933Coated sheet for rotary offset printing
A coated sheet for web offset printing which includes a pigment coating layer containing a pigment and an adhesive formed on a base paper, and a surface layer containing a surface-sizing agent and a plastic pigment formed on the pigment coating layer. ...
11/09/2010
7776435Electrophotographic transfer paper
The present invention is an electrophotographic transfer paper where at least one side of the base paper is given a coating layer with a pigment and an adhesive agent to form coated paper and where the aforementioned adhesive contains a branched poly(meth)acrylamide...
08/17/2010
7749591Laminated sheet
The present invention relates a laminated sheet having improved toner-fixing property and toner blocking resistance, that comprises a base material made of paper, one or more thermoplastic resin layer(s) provided on one side or both sides of said base material, a to...
07/06/2010
7727355Methods for producing recycled pulp and methods for modifying pulp fiber surfaces using liquid jet cavitation
The present invention aims 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. Moreover, fiber surfaces are mod...
06/01/2010
7699960Processes and apparatus for producing cast coated papers
Methods for producing cast-coated papers showing a reduced level of curling and reduced curling or wavy deformation caused by moisture absorption or other reasons as well as showing a high surface quality in the cast-coated surface. The steps for producing cast-coat...
04/20/2010
7691231Newsprint paper treated with cationic surface sizing agent
Newsprint for offset printing having sufficient water absorption resistance to provide a clear printing image with less color registration problems upon offset printing is manufactured by coating base paper, to which aluminum sulfate (a 50% by weight Al2O...
04/06/2010
7670458Method of manufacturing gravure paper
A method of manufacturing a gravure printing paper includes: providing a substance having an effect of inhibiting a binding between pulp fibers; preparing a mixture of pulp fibers and fillers; and adding the substance to the mixture; making a gravure printing paper ...
03/02/2010
7655287Inkjet recording medium
An inkjet recording medium obtained by forming a coating layer containing a pigment and a binder on the surface of a base material and coating layer is subsequently pressed onto a heated mirror finished surface to dry to form an ink absorbing layer through a cast co...
02/02/2010
7651975Heat-sensitive recording material
The present invention is a thermally sensitive recording medium containing a thermally sensitive color developing layer containing a colorless or pale colored basic leuco dye and a color-developing agent as the main components on a substrate, wherein the thermally s...
01/26/2010
7645489Process for producing inkjet recording medium
A method for manufacturing an inkjet recording medium comprising the steps of: applying a coating color containing a pigment and a binder as major components to at least one side of a base material using a transfer roll coater, subsequently drying coating layer to f...
01/12/2010
7628886Process for producing cast coated paper for ink jet recording
A method of manufacturing an inkjet recording cast-coated paper wherein a coating solution containing a pigment and a binder resin is supplied to a base paper, a treatment solution having the function of solidifying the binder resin is supplied to the coating layer ...
12/08/2009
7624939Kneader
A kneader includes a casing with a papermaking material supply opening and a papermaking material outlet located below the papermaking material supply opening; at least first, second, third and fourth rotational shafts provided inside the casing; first blades attach...
12/01/2009
7618922Thermally-sensitive recording medium
A thermally-sensitive recording medium having a protecting layer formed on a thermally-sensitive recording layer containing a colorless or pale-colored electron-donating leuco dye and electron-accepting color-developing agent. The thermally-sensitive recording layer...
11/17/2009
7611606Low-density neutral paper
The present invention provides a low-density neutral paper offering excellent opacity, opacity after printing and other advantageous printability properties despite high bulk, by containing, as a filler, precipitated calcium carbonate-silica composite having an aver...
11/03/2009
7575802Coated printing papers
The present invention aims to provide coated printing papers having fast ink drying properties comparable to those of conventional newsprint, without stickiness, having good printability such as sharpness of printed images comparable to those of coated papers, as we...
08/18/2009
7476642Thermally sensitive recording medium
Provision of a thermally sensitive recording medium made up of an undercoating layer containing a pigment and a binder as main components and a thermally sensitive color-developing layer containing a colorless or pale-colored basic leuco dye and a color-developing a...
01/13/2009
7476448Coating paper which can be removed by water and a method for preparation thereof
A coating paper which can be removed by water comprising a substrate paper of single layer or lamellar structure having two or more layers which has at least one water decaying layer containing 5-100 wt % of water insoluble fibrous carboxy alkyl cellulose and a wate...
01/13/2009
7465694Thermally sensitive recording medium
A thermally sensitive recording medium has at least one layer on a substrate which is a thermally sensitive recording layer that contains a colorless or pale colored electron-donating leuco dye and an electron-accepting color-developing agent. At least one layer on ...
12/16/2008
7404876High-bulk, wood containing printing paper
Coat a starch-based surface-paper-strengthening agent on a base paper made from a paper material that contains at least chemically processed hardwood mechanical pulp and bulk-increasing agent; where it is desirable that the hardwood mechanical pulp with a single fib...
07/29/2008
7387984Thermally sensitive recording medium
A thermally sensitive recording medium whose luster of printed part is excellent can be provided by a thermally sensitive recording medium of single layer or multi layers having at least a thermally sensitive recording layer that contains a colorless or pale colored...
06/17/2008
7384502Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness
Wood chips having low bleachability are impregnated with a chemical liquor at a pH range of 7-12 in aqueous solution and the chemical liquor from the impregnated chips is drained, whereby extractives contained in the chips and consuming bleaching agents can be remov...
06/10/2008
7348065Slipping property imparting agent for clear coating and clear coating paper having the agent applied thereon
Produce a slipping property imparting agent for clear coat that reduces scum production: wherein, (1) the agent comprises a copolymer whose constituents are unsaturated olefin (constituent (a)) and unsaturated carboxylic acid (carboxylate) (constituent (b)); (2) con...
03/25/2008
7312176Thermally sensitive recording medium
A thermally sensitive recording medium including on a support a thermally sensitive color development layer containing: a compound represented by the following general formula (1) as an organic color developing agent; and an oxalate compound represented by the follo...
12/25/2007
7311801Newsprint papers
The object of the present invention provides a newsprint paper having a friction coefficient in an appropriate range, a sufficient sizing quality, a low “neppari” strength and excellent printability. A newsprint paper having a static friction coefficient in an a...
12/25/2007
7294761Method for efficiently producing transgenic plant using auxin precursor
A method for producing a transgenic plant, which comprises: (A) introducing a vector into a plant cell, wherein the vector is a vector for gene introduction into a plant and comprises: a desired gene, and a selectable marker gene comprising a gene encoding an enzyme...
11/13/2007
7235610Aqueous dispersion, process for producing the same, and use
The purpose of the invention is to provide a novel aqueous dispersion that allows high solidification and that has good adherence and gasohol resistance to polyolefin substrates even on low-temperature baking. An aqueous dispersion characterized by dispersedl...
06/26/2007
7232791Multicolored thermally recording medium
In the multi colored thermally sensitive recording medium, at least one kind of dye precursor is contained in complex fine particles which contain dye precursor and polymer of multi valence isocyanate compound, further contain 4,4′-diisocyanate-3,3′-dimethyl-1,1...
06/19/2007
7208552Binder resin compositions, production process and use thereof
The invention provides a novel binder resin composition with good adherence onto prime materials of polyolefin, poly (vinyl chloride), polycarbonate, PET, ABS and nylon, and also with excellent solvent solubility. A binder resin composition characterized by b...
04/24/2007
7208068Dullish coated paper for printing
A dull coated printing paper that is bulky (low in density) having a density of 0.90 to 1.15 g/cm3 and yet offers excellent pliability, superior surface smoothness, high degree of print gloss and minimal small-scale gloss variations in the image area are ...
04/24/2007
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