Patents by Inventor Katsuki Osanishi
Katsuki Osanishi 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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Publication number: 20230159775Abstract: An inkjet ink contains a pigment, a specific polymer, a water-soluble organic solvent, and water. The specific polymer includes at least one first repeating unit, at least one second repeating unit, at least one third repeating unit, and at least one fourth repeating unit. The first repeating unit is a repeating unit derived from a monomer having a salt-forming group. The second repeating unit is a repeating unit derived from a styrene-based monomer. The third repeating unit is a repeating unit derived from a styrene-based macromer having a polymerizable functional group at one end thereof. The fourth repeating unit is a repeating unit derived from nonionic acrylic acid ester or nonionic methacrylic acid ester.Type: ApplicationFiled: November 17, 2022Publication date: May 25, 2023Applicant: KYOCERA Document Solutions Inc.Inventor: Katsuki OSANISHI
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Patent number: 11634602Abstract: A pretreatment liquid for inkjet recording contains a photobase generator that produces an organic amine compound through light exposure. An inkjet recording apparatus forms an image on an image formation area of a recording medium. The inkjet recording apparatus includes a pretreatment section, a light exposure section, and a recording head. The pretreatment section ejects the pretreatment liquid for inkjet recording toward the image formation area of the recording medium. The light exposure section performs light exposure on the image formation area of the recording medium to which the pretreatment liquid for inkjet recording has been ejected. The recording head ejects an ink toward the image formation area of the recording medium subjected to the light exposure to form the image.Type: GrantFiled: October 21, 2020Date of Patent: April 25, 2023Assignee: KYOCERA Document Solutions Inc.Inventor: Katsuki Osanishi
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Publication number: 20210355333Abstract: An inkjet ink contains at least a first carbon black, a second carbon black, and water. The first carbon black has a DBP oil absorption of less than 130 mL/100 g and a BET specific surface area of less than 300 m2/g. The second carbon black has a DBP oil absorption of at least 130 mL/100 g and a BET specific surface area of at least 300 m2/g.Type: ApplicationFiled: May 12, 2021Publication date: November 18, 2021Applicant: KYOCERA Document Solutions Inc.Inventors: Katsuki OSANISHI, Mitsuko MIYATA
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Publication number: 20210122935Abstract: A pretreatment liquid for inkjet recording contains a photobase generator that produces an organic amine compound through light exposure. An inkjet recording apparatus forms an image on an image formation area of a recording medium. The inkjet recording apparatus includes a pretreatment section, a light exposure section, and a recording head. The pretreatment section ejects the pretreatment liquid for inkjet recording toward the image formation area of the recording medium. The light exposure section performs light exposure on the image formation area of the recording medium to which the pretreatment liquid for inkjet recording has been ejected. The recording head ejects an ink toward the image formation area of the recording medium subjected to the light exposure to form the image.Type: ApplicationFiled: October 21, 2020Publication date: April 29, 2021Applicant: KYOCERA Document Solutions Inc.Inventor: Katsuki OSANISHI
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Patent number: 10906332Abstract: A pretreatment solution for inkjet recording contains a photoacid generator that generates sulfonic acid through light exposure.Type: GrantFiled: July 16, 2019Date of Patent: February 2, 2021Assignee: KYOCERA Document Solutions Inc.Inventor: Katsuki Osanishi
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Publication number: 20200024470Abstract: A pretreatment solution for inkjet recording contains a photoacid generator that generates sulfonic acid through light exposure.Type: ApplicationFiled: July 16, 2019Publication date: January 23, 2020Applicant: KYOCERA Document Solutions Inc.Inventor: Katsuki OSANISHI
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Patent number: 9523939Abstract: A liquid developer contains an electrically insulating liquid carrier and toner particles dispersed in the liquid carrier. Each toner particle includes a core and a shell layer that is formed on a surface of the core and contains a thermosetting resin.Type: GrantFiled: July 25, 2014Date of Patent: December 20, 2016Assignee: KYOCERA Document Solutions Inc.Inventors: Hidetoshi Miyamoto, Katsuki Osanishi, Yoshio Ozawa
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Patent number: 9250553Abstract: A liquid developer includes a carrier liquid having insulation property, colored particles, and an organic high molecular compound. The organic high molecular compound is dissolved in the carrier liquid. The organic high molecular compound includes elastomer A that is a styrene-butadiene-based elastomer not having an acid group or a basic group and elastomer B that is a styrene-based elastomer having an acid group or a basic group. A content of the elastomer A in the liquid developer is 6% by mass or more and 8% by mass or less, and a content of the elastomer B in the liquid developer is 0.4% by mass or more and 0.8% by mass or less. The colored particles include aniline black.Type: GrantFiled: December 17, 2013Date of Patent: February 2, 2016Assignee: KYOCERA Document Solutions Inc.Inventor: Katsuki Osanishi
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Publication number: 20150037730Abstract: A liquid developer contains an electrically insulating liquid carrier and toner particles dispersed in the liquid carrier. Each toner particle includes a core and a shell layer that is formed on a surface of the core and contains a thermosetting resin.Type: ApplicationFiled: July 25, 2014Publication date: February 5, 2015Applicant: KYOCERA DOCUMENT SOLUTIONS INC.Inventors: Hidetoshi MIYAMOTO, Katsuki OSANISHI, Yoshio OZAWA
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Patent number: 8846286Abstract: In order to prevent the occurrence of bleeding in a nip between a photoreceptor and an intermediate transfer body or a nip between the photoreceptor and a sheet, which is a problem in a wet developing method, the present disclosure provides a liquid developer that includes an electrically insulating carrier liquid and colored particles dispersed within the carrier liquid, further contains an organic polymer compound, and has a viscosity of 30 to 400 mPa·s at a measurement temperature of 25° C.Type: GrantFiled: May 24, 2011Date of Patent: September 30, 2014Assignee: Kyocera Mita CorporationInventors: Jumpei Hobo, Katsuki Osanishi
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Publication number: 20140170556Abstract: A liquid developer includes a carrier liquid having insulation property, colored particles, and an organic high molecular compound. The organic high molecular compound is dissolved in the carrier liquid. The organic high molecular compound includes elastomer A that is a styrene-butadiene-based elastomer not having an acid group or a basic group and elastomer B that is a styrene-based elastomer having an acid group or a basic group. A content of the elastomer A in the liquid developer is 6% by mass or more and 8% by mass or less, and a content of the elastomer B in the liquid developer is 0.4% by mass or more and 0.8% by mass or less. The colored particles include aniline black.Type: ApplicationFiled: December 17, 2013Publication date: June 19, 2014Applicant: Kyocera Document Solutions Inc.Inventor: Katsuki OSANISHI
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Patent number: 8524435Abstract: A liquid developer containing an electrically insulating carrier fluid and colored particles dispersed in the carrier fluid and a wet-type image forming apparatus using this liquid developer are provided, with the colored particles being pigments and this liquid developer containing at least one selected from a group consisting of styrene elastomer, polyvinyl butyral, cyclic olefin copolymer and cellulose ether. Additionally, a liquid developer containing an electrically insulating carrier fluid, colored particles dispersed in the carrier fluid, and an organic macromolecular compound for fixing the colored particles to a recording medium and a wet-type image forming apparatus using this liquid developer are provided, with the organic macromolecular compound being dissolved in the carrier fluid and the colored particles being pigments.Type: GrantFiled: March 14, 2011Date of Patent: September 3, 2013Assignee: Kyocera Mita CorporationInventors: Jumpei Hobo, Katsuki Osanishi
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Publication number: 20110294065Abstract: In order to prevent the occurrence of bleeding in a nip between a photoreceptor and an intermediate transfer body or a nip between the photoreceptor and a sheet, which is a problem in a wet developing method, the present disclosure provides a liquid developer that includes an electrically insulating carrier liquid and colored particles dispersed within the carrier liquid, further contains an organic polymer compound, and has a viscosity of 30 to 400 mPa·s at a measurement temperature of 25° C.Type: ApplicationFiled: May 24, 2011Publication date: December 1, 2011Applicant: KYOCERA MITA CORPORATIONInventors: Jumpei Hobo, Katsuki Osanishi
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Publication number: 20110222911Abstract: A liquid developer containing an electrically insulating carrier fluid and colored particles dispersed in the carrier fluid and a wet-type image forming apparatus using this liquid developer are provided, with the colored particles being pigments and this liquid developer containing at least one selected from a group consisting of styrene elastomer, polyvinyl butyral, cyclic olefin copolymer and cellulose ether. Additionally, a liquid developer containing an electrically insulating carrier fluid, colored particles dispersed in the carrier fluid, and an organic macromolecular compound for fixing the colored particles to a recording medium and a wet-type image forming apparatus using this liquid developer are provided, with the organic macromolecular compound being dissolved in the carrier fluid and the colored particles being pigments.Type: ApplicationFiled: March 14, 2011Publication date: September 15, 2011Applicant: KYOCERA MITA CORPORATIONInventors: Jumpei Hobo, Katsuki Osanishi
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Patent number: 7594715Abstract: An inkjet recording system that discharges pigment ink from a liquid droplet discharge head in which a part of wall surface of pressure chamber is formed of a piezoelectric element, wherein average surface inclination ?a (mrad) of surface of the piezoelectric element forming a part of wall surface of the pressure chamber satisfies ?a?1050, and average volumetric particle diameter D (nm) of pigment contained in the ink satisfies 80?D?200. Preferably, the arithmetic average surface inclination ?a and the average volumetric particle diameter D of the pigment satisfy the following formula (1): (1/D)×cos2(?a/1000)>0.003??(1).Type: GrantFiled: October 3, 2007Date of Patent: September 29, 2009Assignee: Kyocera Mita CorporationInventor: Katsuki Osanishi
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Publication number: 20080084459Abstract: An inkjet recording system that discharges pigment ink from a liquid droplet discharge head in which a part of wall surface of pressure chamber is formed of a piezoelectric element, wherein average surface inclination ?a (mrad) of surface of the piezoelectric element forming a part of wall surface of the pressure chamber satisfies ?a?1050, and average volumetric particle diameter D (nm) of pigment contained in the ink satisfies 80?D?200. Preferably, the arithmetic average surface inclination ?a and the average volumetric particle diameter D of the pigment satisfy the following formula (1): (1/D)×cos2(?a/1000)>0.003??(1).Type: ApplicationFiled: October 3, 2007Publication date: April 10, 2008Inventor: Katsuki Osanishi