Patents by Inventor Tomoko Mine
Tomoko Mine 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: 20120064454Abstract: A method of producing a toner comprising toner particles containing a binder resin composed of a non-crystalline polyester resin having a crosslinking structure and a crystalline polyester resin is disclosed, the method comparing steps of; a process to form an oil phase liquid by dissolving or dispersing a non-crystalline polyester resin having a polymerizable unsaturated double bond and a crystalline polyester resin in an organic solvent, a process to form an aqueous dispersion liquid of oil droplets of the oil phase liquid by dispersing the oil phase liquid in an aqueous medium, a process to form oil droplets containing the non-crystalline polyester resin having a crosslinking structure by adding a radical polymerization initiator to the aqueous dispersion liquid of oil droplets, and an organic solvent removing process to form toner particles by removing organic solvent.Type: ApplicationFiled: September 8, 2011Publication date: March 15, 2012Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Tomomi OSHIBA, Mikihiko SUKENO, Hajime TADOKORO, Ken OHMURA, Tatsuya NAGASE, Kenji HAYASHI, Saburou HIRAOKA, Tomoko MINE
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Patent number: 7910273Abstract: An electrophotographic image forming method is disclosed. In the method electrostatic latent image is developed by a non-magnetic single-component developing system, in which a non-magnetic single-component developer is conveyed by a developer carrying member, the developer carrying member is contacted with a developer layer regulation member for regulating an amount of the developer at the surface of the developer carrying member, and a binder resin of the developer comprises a vinyl polymer having an acid value of from about 5 to about 30 mgKOH/g and a ratio of hydroxyl group value/acid values from about 0.3 to about 0.8.Type: GrantFiled: May 9, 2007Date of Patent: March 22, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventors: Masahiko Nakamura, Masahiro Anno, Kaori Soeda, Tomoko Mine, Kenichi Onaka, Eiichi Yoshida
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Patent number: 7807325Abstract: An electrostatic image developing toner is disclosed, comprising a resin and a colorant, wherein the toner contains at least one iminocarboxylic acid or its salt in an amount of from 26 to 388 ppm by mass.Type: GrantFiled: January 24, 2007Date of Patent: October 5, 2010Assignee: Konica Minolta Business Technologies, Inc.Inventors: Eiichi Yoshida, Masahiko Nakamura, Kaori Soeda, Tomoko Mine, Kenichi Onaka
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Patent number: 7727698Abstract: Disclosed is an image forming method comprising developing a latent electrostatic image formed on the surface of a latent electrostatic image bearing body by a developer borne and conveyed by a developer bearing body which is brought into contact with a developer layer control member to control an amount of the developer on the surface of the developer bearing body through a nonmagnetic single-component development system, wherein an acid value (SAV) of the surface of the developer and a total acid value (TAV) of the developer meet the following requirements: 1<SAV/TAV?5 and 5?TAV?25, and a ratio of a mass average particle size (d50, ?m) of the developer to a surface roughness (Ra, ?m), d50/Ra being in a range of 0.5 to 3.0 and an average spacing (Sm) between protruding peaks of the developer bearing body being in a range of 20 to 200 ?m.Type: GrantFiled: June 19, 2007Date of Patent: June 1, 2010Assignee: Konica Minolta Business Technologies, Inc.Inventors: Eiichi Yoshida, Masahiko Nakamura, Masahiro Anno, Kaori Soeda, Tomoko Mine, Kenichi Onaka
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Publication number: 20100061830Abstract: The invention provides a downsized processing machine, equipped with a machine tool and a multijoint robot. The processing machine 100 comprises a machine tool 10, a workpiece pallet 70 and a gantry rail 120 disposed above the machine tool 10. A multijoint robot 130 traveling on the gantry rail 120 is equipped with a dual-partitioning electron system speed monitoring function. Through use of this function, the range of movement D2 of the multijoint robot 130 is controlled to fit within the inner side of a front cover 11 of the machine tool 10, according to which the safety barrier 180 can be downsized. This arrangement enables the operator to open or close a door 12 of the machine tool 10 and to manipulate a control panel 16 even when the multijoint robot is in operation, and the footprint of the machine can be minimized.Type: ApplicationFiled: July 27, 2009Publication date: March 11, 2010Inventors: Minoru Kitayama, Naoya Tanaka, Kazuo Kawasaki, Koichi Eboshi, Tomoko Mine, Toraharu Ryuta
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Patent number: 7598013Abstract: A toner comprising: (i) toner particles, each toner particle comprising a binder resin and a colorant; and (ii) an oxymonocarboxylic acid or a salt thereof, wherein a total content of the oxymonocarboxylic acid or the salt thereof in the toner is 10 to 173 ppm based on the total weight of the toner.Type: GrantFiled: January 19, 2007Date of Patent: October 6, 2009Assignee: Konica Minolta Business Technologies, Inc.Inventors: Eiichi Yoshida, Masahiko Nakamura, Kaori Soeda, Tomoko Mine, Kenichi Onaka
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Patent number: 7556905Abstract: Provided is an electrostatic charge image developing toner usable for downsized color image forming apparatus capable of rapid print preparation with neither an influence on production cost nor use of a specific material as the toner constituent material. Also disclosed is an electrostatic charge image developing toner possessing at least a resin and a colorant, wherein the electrostatic charge image developing toner contains 12-984 ppm of a polyvalent organic acid or a salt thereof.Type: GrantFiled: November 21, 2006Date of Patent: July 7, 2009Assignee: Konica Minolta Business Technologies, Inc.Inventors: Eiichi Yoshida, Masahiko Nakamura, Kaori Soeda, Tomoko Mine, Kenichi Onaka
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Publication number: 20080008945Abstract: A toner is disclosed. The toner comprises a vinyl resin, a colorant, and a compound represented by a formula of Compound 1, Compound 2 ion or Compound 3.Type: ApplicationFiled: June 19, 2007Publication date: January 10, 2008Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Kenichi ONAKA, Masahiko NAKAMURA, Kaori SOEDA, Tomoko MINE, Eiichi YOSHIDA
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Publication number: 20070298338Abstract: An electrophotographic image forming method is disclosed. In the method electrostatic latent image is developed by a non-magnetic single-component developing system, in which a non-magnetic single-component developer is conveyed by a developer carrying member, the developer carrying member is contacted with a developer layer regulation member for regulating an amount of the developer at the surface of the developer carrying member, and a binder resin of the developer comprises a vinyl polymer having an acid value of from about 5 to about 30 and a ratio of hydroxyl group value/acid values from about 0.3 to about 0.8.Type: ApplicationFiled: May 9, 2007Publication date: December 27, 2007Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Masahiko NAKAMURA, Masahiro ANNO, Kaori SOEDA, Tomoko MINE, Kenichi ONAKA, Eiichi YOSHIDA
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Publication number: 20070297822Abstract: Disclosed is an image forming method comprising developing a latent electrostatic image formed on the surface of a latent electrostatic image bearing body by a developer borne and conveyed by a developer bearing body which is brought into contact with a developer layer control member to control an amount of the developer on the surface of the developer bearing body through a nonmagnetic single-component development system, wherein an acid value (SAV) of the surface of the developer and a total acid value (TAV) of the developer meet the following requirements: 1<SAV/TAV?5 and 5?TAV?25, and a ratio of a mass average particle size (d50, ?m) of the developer to a surface roughness (Ra, ?m), d50/Ra being in a range of 0.5 to 3.0 and an average spacing (Sm) between protruding peaks of the developer bearing body being in a range of 20 to 200 ?m.Type: ApplicationFiled: June 19, 2007Publication date: December 27, 2007Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Eiichi YOSHIDA, Masahiko NAKAMURA, Masahiro ANNO, Kaori SOEDA, Tomoko MINE, Kenichi ONAKA
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Publication number: 20070196759Abstract: A toner comprising: (i) toner particles, each toner particle comprising a binder resin and a colorant; and (ii) an oxymonocarboxylic acid or a salt thereof, wherein a total content of the oxymonocarboxylic acid or the salt thereof in the toner is 10 to 173 ppm based on the total weight of the toner.Type: ApplicationFiled: January 19, 2007Publication date: August 23, 2007Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Eiichi YOSHIDA, Masahiko NAKAMURA, Kaori SOEDA, Tomoko MINE, Kenichi ONAKA
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Publication number: 20070190445Abstract: An electrostatic image developing toner is disclosed, comprising a resin and a colorant, wherein the toner contains at least one iminocarboxylic acid or its salt in an amount of from 26 to 388 ppm by mass.Type: ApplicationFiled: January 24, 2007Publication date: August 16, 2007Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Eiichi YOSHIDA, Masahiko NAKAMURA, Kaori SOEDA, Tomoko MINE, Kenichi ONAKA
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Publication number: 20070148578Abstract: Provided is an electrostatic charge image developing toner usable for downsized color image forming apparatus capable of rapid print preparation with neither an influence on production cost nor use of a specific material as the toner constituent material. Also disclosed is an electrostatic charge image developing toner possessing at least a resin and a colorant, wherein the electrostatic charge image developing toner contains 12-984 ppm of a polyvalent organic acid or a salt thereof.Type: ApplicationFiled: November 21, 2006Publication date: June 28, 2007Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Eiichi YOSHIDA, Masahiko NAKAMURA, Kaori SOEDA, Tomoko MINE, Kenichi ONAKA