Patents by Inventor Kaori MATSUSHIMA
Kaori MATSUSHIMA 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).
-
Patent number: 11599040Abstract: An image forming method includes supplying powder having metallic luster on a resin image arranged on a recording medium, wherein a color value of the resin image and a color value of the powder on the recording medium satisfy the following Equation (1): {(L*p?L*i?40)2+(a*p?a*i)2+(b*p?b*i)2}1/2?20??(1) wherein L*p, a*p, and b*p represent color values of the powder, and L*i, a*i, and b*i represent color values of the resin image on the recording medium.Type: GrantFiled: March 31, 2022Date of Patent: March 7, 2023Assignee: KONICA MINOLTA, INC.Inventors: Michiyo Fujita, Ryuichi Hiramoto, Kaori Matsushima
-
Publication number: 20220334511Abstract: An image forming method includes supplying powder having metallic luster on a resin image arranged on a recording medium, wherein a color value of the resin image and a color value of the powder on the recording medium satisfy the following Equation (1): {(L*p?L*i?40)2+(a*p?a*i)2+(b*p?b*i)2}1/2?20??(1) wherein L*p, a*p, and b*p represent color values of the powder, and L*i, a*i, and b*i represent color values of the resin image on the recording medium.Type: ApplicationFiled: March 31, 2022Publication date: October 20, 2022Inventors: Michiyo FUJITA, Ryuichi HIRAMOTO, Kaori MATSUSHIMA
-
Patent number: 11106149Abstract: Provided is an image forming method using an electrophotographic photoreceptor provided with a photosensitive layer and a protective layer in this order on a conductive support, and a toner, and the image forming method containing a charging step, an exposure step, a development step, a transfer step, a fixing step, and a cleaning step, wherein the protective layer contains at least a cured resin obtained by curing a polymerizable compound; the toner contains 50% by number or more of toner particles having a shape factor calculated by the equation (1) in the range of 1.2 to 1.6, and a variation coefficient of the shape factor is 16% or less; and the toner contains alumina particles having a number average particle diameter in the range of 5 to 60 nm and silica particles having a number average particle diameter in the range of 80 to 200 nm.Type: GrantFiled: February 3, 2020Date of Patent: August 31, 2021Assignee: KONICA MINOLTA, INC.Inventors: Tomoko Mine, Michiyo Fujita, Ryuichi Hiramoto, Kaori Matsushima
-
Publication number: 20210033994Abstract: Provided is an image forming method for arranging powder particles on a resin image layer, wherein the powder particles are non-spherical powder particles; the image forming method containing the step of adjusting an orientation of the powder particles disposed on the resin image layer; and hd1 and hd2 are adjusted so as to satisfy a relation expressed by the following Equation (1), Equation (1): hd1<hd2, wherein hd1 and hd2 each are respectively a half-value width of a reflected light distributions before and after the step of adjusting the orientation of the powder particles.Type: ApplicationFiled: June 22, 2020Publication date: February 4, 2021Inventors: Michiyo FUJITA, Ryuichi HIRAMOTO, Kaori MATSUSHIMA, Tomoko MINE
-
Patent number: 10788781Abstract: The present invention provides an image forming method for forming a decorated image having a resin layer and a powder contacted with each other, the method including: forming a resin layer on a recording medium; and supplying a powder onto the recording medium, in which, in viscoelasticity measurement of the resin layer, storage modulus G?(1) at 90° C. is 1.0×103 Pa or more and 1.0×106 Pa or less upon carrying out the measurement from 30° C. to 100° C. under conditions of a frequency of 1 Hz and a temperature increasing rate of 3° C./min.Type: GrantFiled: October 11, 2019Date of Patent: September 29, 2020Assignee: KONICA MINOLTA, INC.Inventors: Kazumi Oura, Michiyo Fujita, Kaori Matsushima
-
Publication number: 20200285162Abstract: Provided is an image forming method using an electrophotographic photoreceptor provided with a photosensitive layer and a protective layer in this order on a conductive support, and a toner, and the image forming method containing a charging step, an exposure step, a development step, a transfer step, a fixing step, and a cleaning step, wherein the protective layer contains at least a cured resin obtained by curing a polymerizable compound; the toner contains 50% by number or more of toner particles having a shape factor calculated by the equation (1) in the range of 1.2 to 1.6, and a variation coefficient of the shape factor is 16% or less; and the toner contains alumina particles having a number average particle diameter in the range of 5 to 60 nm and silica particles having a number average particle diameter in the range of 80 to 200 nm.Type: ApplicationFiled: February 3, 2020Publication date: September 10, 2020Inventors: Tomoko MINE, Michiyo FUJITA, Ryuichi HIRAMOTO, Kaori MATSUSHIMA
-
Publication number: 20200174387Abstract: Provided is an image forming method including the step of: supplying powder particles to a resin image layer formed on a recording medium to adhere the powder particles to the resin image layer, wherein 80% or more of the powder particles out of the total number of the powder particles adhered to a surface and an inside of the resin image layer are adhered so that at least a part of each powder particle is exposed from the resin image layer.Type: ApplicationFiled: October 11, 2019Publication date: June 4, 2020Inventors: Ryuichi Hiramoto, Michiyo Fujita, Tomoko Mine, Kaori Matsushima
-
Publication number: 20200150577Abstract: The present invention provides an image forming method for forming a decorated image having a resin layer and a powder contacted with each other, the method including: forming a resin layer on a recording medium; and supplying a powder onto the recording medium, in which, in viscoelasticity measurement of the resin layer, storage modulus G?(1) at 90° C. is 1.0×103 Pa or more and 1.0×106 Pa or less upon carrying out the measurement from 30° C. to 100° C. under conditions of a frequency of 1 Hz and a temperature increasing rate of 3° C./min.Type: ApplicationFiled: October 11, 2019Publication date: May 14, 2020Inventors: Kazumi OURA, Michiyo FUJITA, Kaori MATSUSHIMA
-
Patent number: 10635021Abstract: The present invention provides an image forming method for forming a decorated image having a resin layer and a powder contacted with each other, the method including: forming a resin layer on a recording medium; and supplying a powder onto the recording medium, in which the recording medium has a surface with an arithmetic mean height Sa of 1.000 or more.Type: GrantFiled: September 11, 2019Date of Patent: April 28, 2020Assignee: KONICA MINOLTA, INC.Inventors: Michiyo Fujita, Ryuichi Hiramoto, Tomoko Mine, Kaori Matsushima
-
Publication number: 20200125004Abstract: The present invention provides an image forming method for forming a decorated image having a resin layer and a powder contacted with each other, the method including: forming a resin layer on a recording medium; and supplying a powder onto the recording medium, in which the recording medium has a surface with an arithmetic mean height Sa of 1.000 or more.Type: ApplicationFiled: September 11, 2019Publication date: April 23, 2020Inventors: Michiyo FUJITA, Ryuichi Hiramoto, Tomoko Mine, Kaori Matsushima
-
Publication number: 20200125012Abstract: The present invention provides an image forming method for forming a decorated image, including: softening a resin layer contained in a resin image including a recording medium having a surface with an arithmetic mean height Sa less than 1.000 and the resin layer formed on the recording medium; and supplying a powder onto a surface of the resin layer.Type: ApplicationFiled: September 25, 2019Publication date: April 23, 2020Inventors: Michiyo FUJITA, Ryuichi Hiramoto, Tomoko Mine, Kaori Matsushima
-
Patent number: 10591830Abstract: In an image forming method, a black toner and a color toner other than the black toner are used. The black toner and the color toner each include a binder resin including a polyester resin as a main component and a vinyl resin, a releasing agent, and an external additive. A content Vk % by mass of the vinyl resin relative to total mass of the binder resin included in the black toner, a content Vc % by mass of the vinyl resin relative to total mass of the binder resin included in the color toner, a content Wk % by mass of the releasing agent relative to the total mass of the binder resin included in the black toner, and a content Wc % by mass of the releasing agent relative to the total mass of the binder resin included in the color toner satisfy a specific relationship.Type: GrantFiled: September 12, 2018Date of Patent: March 17, 2020Assignee: KONICA MINOLTA, INC.Inventors: Kaori Matsushima, Tomoko Mine, Hitomi Motani
-
Patent number: 10539897Abstract: An image forming method uses a color toner including a yellow toner, a magenta toner, a cyan toner, and a black toner. The image forming method includes a toner image forming step of forming a toner image by developing the color toner on an electrostatic latent image formed by charging and exposing a surface of an electrostatic latent image bearing member, a transfer step of transferring the toner image onto a recording medium to form a color toner image, and a fixing step of fixing the color toner image on the recording medium. Each toner contain at least a binder resin, a coloring agent, a release agent, and a layered silicate compound. The volume average particle diameter of each toner is 4 to 6 ?m. The content of the aluminum element in each toner represented by the Net intensity by WDXRF analysis has a specific relationship.Type: GrantFiled: October 17, 2018Date of Patent: January 21, 2020Assignee: KONICA MINOLTA, INC.Inventors: Hitomi Motani, Tomoko Mine, Kaori Matsushima
-
Publication number: 20190137899Abstract: An image forming method uses a color toner including a yellow toner, a magenta toner, a cyan toner, and a black toner. The image forming method includes a toner image forming step of forming a toner image by developing the color toner on an electrostatic latent image formed by charging and exposing a surface of an electrostatic latent image bearing member, a transfer step of transferring the toner image onto a recording medium to form a color toner image, and a fixing step of fixing the color toner image on the recording medium. Each toner contain at least a binder resin, a coloring agent, a release agent, and a layered silicate compound. The volume average particle diameter of each toner is 4 to 6 ?m. The content of the aluminum element in each toner represented by the Net intensity by WDXRF analysis has a specific relationship.Type: ApplicationFiled: October 17, 2018Publication date: May 9, 2019Inventors: Hitomi MOTANI, Tomoko MINE, Kaori MATSUSHIMA
-
Publication number: 20190094732Abstract: In an image forming method, a black toner and a color toner other than the black toner are used. The black toner and the color toner each include a binder resin including a polyester resin as a main component and a vinyl resin, a releasing agent, and an external additive. A content Vk % by mass of the vinyl resin relative to total mass of the binder resin included in the black toner, a content Vc % by mass of the vinyl resin relative to total mass of the binder resin included in the color toner, a content Wk % by mass of the releasing agent relative to the total mass of the binder resin included in the black toner, and a content Wc % by mass of the releasing agent relative to the total mass of the binder resin included in the color toner satisfy a specific relationship.Type: ApplicationFiled: September 12, 2018Publication date: March 28, 2019Inventors: Kaori MATSUSHIMA, Tomoko MINE, Hitomi MOTANI
-
Patent number: 10126668Abstract: A toner for electrostatic charge image development contains a binder resin and a releasing agent. The binder resin contains an amorphous polyester resin as a main component and a vinyl resin, the vinyl resin contains a constitutional unit derived from a specific monomer. The releasing agent has a melting point of from 65 to 90° C. and contains an ester wax.Type: GrantFiled: August 31, 2017Date of Patent: November 13, 2018Assignee: Konica Minolta, Inc.Inventors: Kouji Sugama, Shiro Hirano, Noboru Ueda, Kaori Matsushima
-
Patent number: 10120296Abstract: An electrostatic latent image developing toner includes toner particles which comprises a binder resin and a releasing agent. A main component of the binder resin is a polyester resin. The binder resin comprises a crystalline polyester resin, an amorphous polyester resin and a hybrid vinyl resin. The hybrid vinyl resin is composed of a vinyl polymer segment and at least one segment selected from a polyester polymer segment, an urethane polymer segment and an urea polymer segment which is chemically bound to the vinyl polymer segment. A main component of the hybrid vinyl resin is the vinyl polymer segment which comprises a structural unit derived from a monomer having a specific structure. A tetrahydrofuran-soluble fraction of the toner has a main peak of a molecular weight distribution measured by gel permeation chromatography within the range of 11000 to 30000.Type: GrantFiled: September 20, 2017Date of Patent: November 6, 2018Assignee: KONICA MINOLTA, INC.Inventors: Kaori Matsushima, Noboru Ueda, Shiro Hirano, Kouji Sugama
-
Patent number: 10114306Abstract: A high quality image excellent in low-temperature fixability and good in color stability can be formed by an image forming method of the present invention. In the image forming method, an image is formed by an electrophotographic method using toners of plural colors. Each of the toners of the plural colors contains a crystalline resin, methanol concentrations (%) at transmittance of 50% obtained for methanol wettability evaluation of the toners of the plural colors all fall in a range of 15 to 60%, and assuming that a maximum value and a minimum value of the methanol concentrations (%) at transmittance of 50% obtained for the methanol wettability evaluation of the toners of the plural colors are respectively WH (%) and WL (%), a relationship of 4?WH?WL?30 is satisfied.Type: GrantFiled: March 24, 2017Date of Patent: October 30, 2018Assignee: KONICA MINOLTA, INC.Inventors: Makoto Nomiya, Kaori Matsushima, Yasuko Uchino, Tomomi Oshiba
-
Patent number: 9964886Abstract: Provided is an electrostatic latent image developing toner that, while ensuring low temperature fixability, can ensure image quality stability even during high-speed continuous printing. The toner is an electrostatic latent image developing core-shell type toner containing at least a binder resin. The binder resin includes a crystalline polyester resin, an amorphous polyester resin, and a hybrid amorphous vinyl resin in which a vinyl polymerization segment is chemically bonded to a polymerization segment other than the vinyl polymerization segment, in which a core portion of the toner contains the crystalline polyester resin and the amorphous polyester resin, whereas a shell portion of the toner contains the hybrid amorphous vinyl resin, and the hybrid amorphous vinyl resin has a vinyl polymerization segment content of from 51 to 99% by mass.Type: GrantFiled: September 20, 2016Date of Patent: May 8, 2018Assignee: KONICA MINOLTA, INC.Inventors: Kaori Matsushima, Tomomi Oshiba
-
Publication number: 20180088477Abstract: An electrostatic latent image developing toner includes toner particles which comprises a binder resin and a releasing agent. A main component of the binder resin is a polyester resin. The binder resin comprises a crystalline polyester resin, an amorphous polyester resin and a hybrid vinyl resin. The hybrid vinyl resin is composed of a vinyl polymer segment and at least one segment selected from a polyester polymer segment, an urethane polymer segment and an urea polymer segment which is chemically bound to the vinyl polymer segment. A main component of the hybrid vinyl resin is the vinyl polymer segment which comprises a structural unit derived from a monomer having a specific structure. A tetrahydrofuran-soluble fraction of the toner has a main peak of a molecular weight distribution measured by gel permeation chromatography within the range of 11000 to 30000.Type: ApplicationFiled: September 20, 2017Publication date: March 29, 2018Inventors: Kaori MATSUSHIMA, Noboru UEDA, Shiro HIRANO, Kouji SUGAMA