Patents by Inventor Kousaku Yoshimura
Kousaku Yoshimura 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).
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Patent number: 9733586Abstract: A resin composite particle includes a continuous phase formed of a polyester resin, and a dispersed phase formed of a vinyl resin and dispersed in the continuous phase, the volume average particle diameter of the resin composite particles being from 50 nm to 1,000 nm.Type: GrantFiled: February 8, 2016Date of Patent: August 15, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Kousaku Yoshimura, Tomohiro Shinya, Kiyohiro Yamanaka, Shinpei Takagi
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Publication number: 20170137669Abstract: In one embodiment, the invention can be a method for applying a security tag, the method including a cutting a portion of a top layer of a product packaging, the cutting comprising making cuts that form a closed shape, the cutting causing a break in the top layer that exposes a second layer of the product packaging; and adhering, via an adhesive, a security tag over the cut portion, the adhesive penetrating into the break in the top layer to contact the exposed second layer; wherein, upon removal of the security tag from the product packaging, a section of the cut portion of the top layer is removed from the product packaging.Type: ApplicationFiled: November 18, 2015Publication date: May 18, 2017Inventors: George West, Seth Strauser, Takeshi Matsumoto, Kousaku Yoshimura
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Publication number: 20170052466Abstract: A resin composite particle includes a continuous phase formed of a polyester resin, and a dispersed phase formed of a vinyl resin and dispersed in the continuous phase, the volume average particle diameter of the resin composite particles being from 50 nm to 1,000 nm.Type: ApplicationFiled: February 8, 2016Publication date: February 23, 2017Applicant: FUJI XEROX CO., LTD.Inventors: Kousaku YOSHIMURA, Tomohiro SHINYA, Kiyohiro YAMANAKA, Shinpei TAKAGI
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Patent number: 8628903Abstract: An electrostatic charge image developing toner includes: a polyester resin containing a graft copolymer, the graft copolymer being formed with a polyester skeleton as a main chain and block copolymers containing a styrene-based polymer block and a crystalline acrylate-based polymer block. The styrene-based polymer block is grafted onto the polyester skeleton.Type: GrantFiled: January 30, 2012Date of Patent: January 14, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Hideo Maehata, Fumiaki Mera, Kousaku Yoshimura
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Publication number: 20130017481Abstract: An electrostatic charge image developing toner includes: a polyester resin containing a graft copolymer, the graft copolymer being formed with a polyester skeleton as a main chain and block copolymers containing a styrene-based polymer block and a crystalline acrylate-based polymer block. The styrene-based polymer block is grafted onto the polyester skeleton.Type: ApplicationFiled: January 30, 2012Publication date: January 17, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Hideo MAEHATA, Fumiaki MERA, Kousaku YOSHIMURA
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Publication number: 20110076466Abstract: The present invention provides a toner composition for electrostatic photography, including a reactive compound A having a reactive group XA, and a reactive compound B having a reactive group XB that is capable of reacting with the reactive group XA and forming a bond, wherein the reactive compound B is capable of forming a three-dimensionally bonded structure by reacting with the reactive compound A, and wherein the toner composition includes the reactive compound A and the reactive compound B in a mutually isolated state. Preferably, the reactive compounds respectively have two or more reaction sites, and any one of the compounds has three or more reaction sites.Type: ApplicationFiled: September 29, 2010Publication date: March 31, 2011Applicant: FUJIFILM CORPORATIONInventors: Hisashi OKAMURA, Kousaku YOSHIMURA, Takafumi HOSOKAWA
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Publication number: 20090291236Abstract: The present invention provides a method for producing shape-anisotropic metal particles having at least reducing a metal compound in the presence of a polymer dispersant which has a mercapto group within its molecule. The present invention further provides a coloring composition which is obtained by disposing the shape-anisotropic metal particles in a solvent having an SP value of 25.8 MPa1/2 or less, the shape-anisotropic metal particles being produced by a method.Type: ApplicationFiled: October 18, 2006Publication date: November 26, 2009Applicant: FUJIFILM CorporationInventors: Misato Sasada, Kousaku Yoshimura
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Patent number: 7604338Abstract: An ink jet recording method for recording on an ink jet recording medium including a support and a colorant receiving layer provided on the support having a porous structure containing at least polymer fine particles, using an ink composition including a colored fine particle dispersion containing at least one kind of hydrophobic dye, at least one kind of hydrophobic polymer and at least one kind of organic solvent having a high boiling point, wherein a void volume per unit thickness (A/B) of the colorant receiving layer calculated by dividing a void volume A (×10?5 ml/cm2) of the colorant receiving layer at a void diameter equal to a particle size of the polymer fine particles obtained from a pore distribution curve by a nitrogen gas adsorption method, by a dry film thickness B (?m) of the colorant receiving layer is 2.0 (×10?5 ml/cm2/?m) or more.Type: GrantFiled: April 15, 2004Date of Patent: October 20, 2009Assignee: FUJIFILM CorporationInventors: Kenji Ikeda, Kousaku Yoshimura
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Patent number: 7217447Abstract: An ink-jet recording sheet including a color material receiving layer on a substrate. The color material receiving layer contains a compound represented by the following general formula (I), In the general formula (I), R1 and R2 each independently represent a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, —COR3, —COOR4, —SO2—R5, or —N(R6)R7. R3 and R5 each independently represent a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, or —N(R8)R9. R4 represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group. R6 to R9 each independently represent a hydrogen atom, an aliphatic group, an aromatic group, an acyl group, an alkoxy carbony group, an aryloxy carbonyl group, a carbamoyl group, an alkyl sulfonyl group, an aryl sulfonyl group, or a sulfamoyl group. R1 and R2 may link with each other so as to form a ring.Type: GrantFiled: October 22, 2002Date of Patent: May 15, 2007Assignee: Fujifilm CorporationInventors: Masanobu Takashima, Kozo Nagata, Hisao Yamada, Kazuyuki Koike, Kousaku Yoshimura
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Patent number: 7128413Abstract: To provide an ink-jet recording medium that can absorb inks satisfactorily and exhibits high print density, minimized bleeding with time and satisfactory light resistance, an ink-jet recording medium includes a support; and an ink receiving layer which is disposed on the support, contains at least fine polymer particles and has a porous structure. The ink receiving layer has a pore volume per unit thickness (A/B) of 2.0×10?5 ml/cm2/?m or more, where A is the pore volume (×10?5 ml/cm2) in the ink receiving layer at a pore diameter equal to the average particle diameter of the fine polymer particles, which pore volume is determined based on a pore distribution curve obtained according to a nitrogen gas adsorption technique; and B is the dry thickness (?m) of the ink receiving layer.Type: GrantFiled: September 16, 2003Date of Patent: October 31, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Kousaku Yoshimura, Masanobu Takashima
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Publication number: 20040207702Abstract: An ink jet recording method for recording on an ink jet recording medium including a support and a colorant receiving layer provided on the support having a porous structure containing at least polymer fine particles, using an ink composition including a colored fine particle dispersion containing at least one kind of hydrophobic dye, at least one kind of hydrophobic polymer and at least one kind of organic solvent having a high boiling point, wherein a void volume per unit thickness (A/B) of the colorant receiving layer calculated by dividing a void volume A (×10−5 ml/cm2) of the colorant receiving layer at a void diameter equal to a particle size of the polymer fine particles obtained from a pore distribution curve by a nitrogen gas adsorption method, by a dry film thickness B (&mgr;m) of the colorant receiving layer is 2.0 (×10−5 ml/cm2/&mgr;m) or more.Type: ApplicationFiled: April 15, 2004Publication date: October 21, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Kenji Ikeda, Kousaku Yoshimura
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Publication number: 20040202837Abstract: An ink-jet recording sheet including a color material receiving layer on a substrate.Type: ApplicationFiled: October 22, 2002Publication date: October 14, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Masanobu Takashima, Kozo Nagata, Hisao Yamada, Kazuyuki Koike, Kousaku Yoshimura
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Patent number: 6743850Abstract: Provided are a new cationic polymer and an inkjet recording sheet exhibiting a superior printing density of an image without lowering ink receptivity. A cationic polymer represented by the following general formula (A): An inkjet recording sheet, that has, on a substrate, a colorant-accepting layer containing cationic polymer modified inorganic pigment particles, which are obtained by bonding inorganic pigment particles to a cationic polymer having, at its terminal, a group that can be bonded to the inorganic pigment particles.Type: GrantFiled: October 24, 2002Date of Patent: June 1, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Kousaku Yoshimura, Ryoichi Nakano, Shigetomo Tsujihata
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Publication number: 20040086666Abstract: To provide an ink-jet recording medium that can absorb inks satisfactorily and exhibits high print density, minimized bleeding with time and satisfactory light resistance, an ink-jet recording medium includes a support; and an ink receiving layer which is disposed on the support, contains at least fine polymer particles and has a porous structure. The ink receiving layer has a pore volume per unit thickness (A/B) of 2.0×10−5 ml/cm2/&mgr;m or more, where A is the pore volume (×10−5 ml/cm2) in the ink receiving layer at a pore diameter equal to the average particle diameter of the fine polymer particles, which pore volume is determined based on a pore distribution curve obtained according to a nitrogen gas adsorption technique; and B is the dry thickness (&mgr;m) of the ink receiving layer.Type: ApplicationFiled: September 16, 2003Publication date: May 6, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Kousaku Yoshimura, Masanobu Takashima
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Publication number: 20030118791Abstract: Provided are a new cationic polymer and an inkjet recording sheet exhibiting a superior printing density of an image without lowering ink receptivity.Type: ApplicationFiled: October 24, 2002Publication date: June 26, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Kousaku Yoshimura, Ryoichi Nakano, Shigetomo Tsujihata
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Publication number: 20010002415Abstract: A colored photosensitive composition is composed of a pigment composition, a binder polymer having an acidic group, a multi-functional monomer having at least two ethylenic unsaturated double bonds, and a photopolymerization initiator. The pigment composition is composed of an organic pigment, a dispersant, and an organic solvent. The dispersant is a copolymer of a polymerizable oligomer having an ethylenic unsaturated double bond in its terminal position and one or more monomers at least one of which has a nitrogen-containing group and an ethylenic unsaturated double bond.Type: ApplicationFiled: January 2, 2001Publication date: May 31, 2001Inventors: Akihiko Takeda, Shinichiro Morimoto, Kousaku Yoshimura
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Patent number: 6194480Abstract: A colored photosensitive composition is composed of a pigment composition, a binder polymer having an acidic group, a multi-functional monomer having at least two ethylenic unsaturated double bonds, and a photopolymerization initiator. The pigment composition is composed of an organic pigment, a dispersant, and an organic solvent. The dispersant is a copolymer of a polymerizable oligomer having an ethylenic unsaturated double bond in its terminal position and one or more monomers at least one of which has a nitrogen-containing group and an ethylenic unsaturated double bond.Type: GrantFiled: April 10, 1998Date of Patent: February 27, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Akihiko Takeda, Shinichiro Morimoto, Kousaku Yoshimura