Patents by Inventor Shinya Sakamoto

Shinya Sakamoto 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).

  • Publication number: 20140287353
    Abstract: An electrostatic charge image developing toner includes an amorphous polyester resin and a crystalline polyester resin as a binder resin, and by differential scanning calorimetry, which undergoes processes of a first temperature rise, cooling at a rate of ?10° C./min and a second temperature rise, an endothermic peak (1) derived from a resin in which at least the amorphous polyester resin and the crystalline polyester resin are compatible is present in the first temperature rise, an exothermic peak having an intensity of 0.1 J/g or more is not present during the first temperature rise, and at least one exothermic peak (2) is present in a temperature range which is lower than that of the endothermic peak (1) by from 5° C. to 15° C. during the second temperature rise.
    Type: Application
    Filed: September 13, 2013
    Publication date: September 25, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shinya SAKAMOTO, Satoshi YOSHIDA, Shinya NAKASHIMA, Tetsuya TAGUCHI
  • Publication number: 20140255839
    Abstract: An electrostatic charge image developing toner includes a binder resin and a release agent, and when a peak temperature during a first temperature increase and a peak temperature during a second temperature increase, that are obtained by differential scanning calorimetry including performing the first temperature increase at 10° C./min after holding at 10° C., performing cooling at ?10° C./min, performing a heat treatment for 24 hours at 50° C., and performing the second temperature increase at 10° C./min, are represented by Tt1 and Tt2(50° C.), respectively, the following Expression (1) is satisfied: Tt1<Tt2(50° C.).
    Type: Application
    Filed: September 13, 2013
    Publication date: September 11, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tetsuya TAGUCHI, Satoshi YOSHIDA, Shinya NAKASHIMA, Shinya SAKAMOTO, Kosaku YOSHIMURA, Emi MIYATA
  • Publication number: 20140113227
    Abstract: An electrostatic charge image developing toner is provided which includes a core particle that contains an amorphous polyester resin and a colorant; and a shell layer that covers the core particle and contains a polystyrene resin, wherein a softening temperature Ma of the shell layer and a softening temperature Mb of the core particle satisfy a relationship of 10° C.?Ma-Mb?45° C.
    Type: Application
    Filed: June 6, 2013
    Publication date: April 24, 2014
    Inventors: Tomohiro SHINYA, Shinpei TAKAGI, Soichiro KITAGAWA, Shinya SAKAMOTO
  • Publication number: 20140099579
    Abstract: An electrostatic charge image developing toner includes toner particles having a core that includes a block copolymer of a crystalline polyester block and an amorphous polyester block, and a shell that covers the core and includes an amorphous polyester resin having an ethylenically unsaturated double bond, and of which a surface layer part includes a crosslinked product of the amorphous polyester resin having an ethylenically unsaturated double bond.
    Type: Application
    Filed: June 7, 2013
    Publication date: April 10, 2014
    Inventors: Shinpei TAKAGI, Soichiro KITAGAWA, Shinya SAKAMOTO, Tomohiro SHINYA
  • Patent number: 8685182
    Abstract: This high-strength steel pipe includes, by mass %, C: 0.02% to 0.09%, Mn: 0.4% to 2.5%, Cr: 0.1% to 1.0%, Ti: 0.005% to 0.03%, Nb: 0.005% to 0.3%, and a balance consisting of Fe and inevitable impurities, in which Si, Al, P, S, and N are limited to 0.6% or less, 0.1% or less, 0.02% or less, 0.005% or less, 0.008% or less, respectively, the bainite transformation index BT is 650° C. or less, and the microstructure thereof is a single bainite microstructure including first bainite and second bainite, the first bainite being a gathered microstructure of bainitic ferrite including no carbide, and the second bainite being a mixed microstructure of bainitic ferrite including no carbide and cementite between the bainitic ferrites.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: April 1, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kensuke Nagai, Yasuhiro Shinohara, Shinya Sakamoto, Takuya Hara, Hitoshi Asahi
  • Patent number: 8663890
    Abstract: Provided is an electrostatic charge image developing toner, each toner particle including a core portion, a first shell layer, and a second shell layer, wherein the core portion contains a first polyester resin, a colorant, and a release agent, the first shell layer contains a second polyester resin and covers the core portion, the second shell layer contains a polymer of an aromatic vinyl monomer and a third polyester resin having an ethylenic unsaturated double bond that is polymerizable with the aromatic vinyl monomer, and covers the first shell layer, and a total amount of the first shell layer and the second shell layer is within a range of from 16% by weight to 40% by weight of the toner particle.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: March 4, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shinpei Takagi, Soichiro Kitagawa, Shinya Sakamoto, Tomohiro Shinya
  • Publication number: 20140051021
    Abstract: An electrostatic charge image developing toner includes toner particles that have a core containing polyester, a release agent, and a colorant in which the polyester does not have an ethylenically unsaturated bond, and a shell coating the core and containing a polymer of vinyl monomers, and the toner particles satisfy the following Expression (1): Expression (1): 0.1?B/(A+B)?0.7, wherein in Expression (1), A represents a proportion (atom %) of atoms constituting the polyester in the entire atoms, that is obtained by analyzing surfaces of the toner particles by X-ray photoelectron spectroscopy; and B represents a proportion (atom %) of atoms constituting the polymer of vinyl monomers in the entire atoms, that is obtained by analyzing the surfaces of the toner particles by X-ray photoelectron spectroscopy.
    Type: Application
    Filed: May 31, 2013
    Publication date: February 20, 2014
    Inventors: Shinya SAKAMOTO, Shinpei TAKAGI, Soichiro KITAGAWA, Tomohiro SHINYA
  • Patent number: 8652722
    Abstract: An electrostatic charge image developing toner contains a binder resin, a release agent, a black colorant, a methylglycine diacetate, and an aluminum element, the content of the methylglycine diacetate is in the range of from 5 ppm to 500 ppm, and the content of the aluminum element is in the range of from 0.07 atomic % to 0.18 atomic % in total element analysis using fluorescent X-rays.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: February 18, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoshi Yoshida, Tsuyoshi Murakami, Eisuke Iwazaki, Shinya Sakamoto
  • Patent number: 8563205
    Abstract: Provided is a magenta toner containing toner particles that contain a colorant and a binder resin, wherein the colorant contains C.I. Pigment Red 57:1 and C.I. Pigment Yellow 180, a mass ratio between the C.I. Pigment Red 57:1 and the C.I. Pigment Yellow 180 being 99:1 to 10000:1, and wherein the binder resin contains a polyester resin that has a repeating unit derived from bisphenol A ethylene oxide represented by formula (1): wherein each of m and n independently represents an integer of 2 to 4.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: October 22, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Eisuke Iwazaki, Shinya Sakamoto, Tsuyoshi Murakami, Satoshi Yoshida, Satoshi Inoue
  • Patent number: 8507164
    Abstract: The invention provides a yellow toner including toner particles comprising colorants and a binder resin, the colorants including at least a C. I. Pigment yellow 180 and a carmine-based pigment, a weight ratio of the C. I. Pigment yellow 180 to the carmine-based pigment being from about 99:1 to about 10,000:1, the binder resin being a polyester resin comprising a first repeating unit derived from a first diol compound, and the first diol compound being a bisphenol A ethylene oxide represented by the following formula (1): wherein in formula (1), m and n each independently represent an integer of from 2 to 4.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: August 13, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Eisuke Iwazaki, Satoshi Yoshida, Shinya Sakamoto
  • Publication number: 20130183618
    Abstract: Provided is an electrostatic charge image developing toner, each toner particle including a core portion, a first shell layer, and a second shell layer, wherein the core portion contains a first polyester resin, a colorant, and a release agent, the first shell layer contains a second polyester resin and covers the core portion, the second shell layer contains a polymer of an aromatic vinyl monomer and a third polyester resin having an ethylenic unsaturated double bond that is polymerizable with the aromatic vinyl monomer, and covers the first shell layer, and a total amount of the first shell layer and the second shell layer is within a range of from 16% by weight to 40% by weight of the toner particle.
    Type: Application
    Filed: July 3, 2012
    Publication date: July 18, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shinpei TAKAGI, Soichiro KITAGAWA, Shinya SAKAMOTO, Tomohiro SHINYA
  • Publication number: 20130078565
    Abstract: An electrostatic charge image developing toner contains a binder resin, a release agent, a black colorant, a methylglycine diacetate, and an aluminum element, the content of the methylglycine diacetate is in the range of from 5 ppm to 500 ppm, and the content of the aluminum element is in the range of from 0.07 atomic % to 0.18 atomic % in total element analysis using fluorescent X-rays.
    Type: Application
    Filed: February 15, 2012
    Publication date: March 28, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Satoshi YOSHIDA, Tsuyoshi MURAKAMI, Eisuke IWAZAKI, Shinya SAKAMOTO
  • Publication number: 20120291907
    Abstract: A high-strength welded steel pipe is obtained by welding a seam weld portion of a steel plate that are formed in a pipe shape. In the high-strength welded steel pipe, a base metal of the steel plate includes, by mass %, C: 0.010% to 0.080%, Si: 0.01% to 0.50%, Mn: 0.50% to 2.00%, S: 0.0001% to 0.0050%, Ti: 0.003% to 0.030%, Mo: 0.05% to 1.00%, B: 0.0003% to 0.0100%, O: 0.0001% to 0.0080%, N: 0.006% to 0.0118%, P: limited to 0.050% or less, Al: limited to 0.008% or less, and the balance of Fe and inevitable impurities, Ceq is 0.30 to 0.53, Pcm is 0.10 to 0.20, [N]—[Ti]/3.4 is less than 0.003, the average grain size of the prior ? grains in heat affected zones in the steel plate is 250 ?m or less, and the prior ? grains include bainite and intragranular bainite.
    Type: Application
    Filed: February 4, 2011
    Publication date: November 22, 2012
    Inventors: Taishi Fujishiro, Takuya Hara, Yoshio Terada, Shinya Sakamoto, Hitoshi Asahi
  • Publication number: 20120270145
    Abstract: An electrostatic charge image developing toner includes a binder resin that contains an amorphous polyester resin and a colorant. The toner satisfies the following expressions: 20 ?S/cm???150 ?S/cm, and 0.01<Cm/(Cc+Co)<0.1, where ? represents the conductivity of a supernatant solution when 0.1 g of the toner is dissolved in 30 ml of tetrahydrofuran, Cm represents the content (% by mass) of metal elements Al, Mg, and Fe, Cc represents the content (% by mass) of carbon, and Co represents the content by mass) of oxygen.
    Type: Application
    Filed: October 27, 2011
    Publication date: October 25, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shinya SAKAMOTO, Satoshi INOUE, Satoshi YOSHIDA, Eisuke IWAZAKI, Tsuyoshi MURAKAMI
  • Patent number: 8238524
    Abstract: An apparatus includes: an image pickup unit capturing a color image observed by the microscope; a camera characteristic information storage unit storing camera characteristic information about a characteristic of the microscope color image pickup apparatus; a color correction parameter calculation unit calculating a color correction parameter for a color correcting process on the color image captured by the image pickup unit according to the color image captured by the image pickup unit and the camera characteristic information stored in the camera characteristic information storage unit; and a color correcting unit performing a color correcting process on the color image captured by the image pickup unit according to the color correction parameter calculated by the color correction parameter calculation unit.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: August 7, 2012
    Assignee: Olympus Corporation
    Inventors: Shinichiro Aizaki, Shinya Sakamoto
  • Patent number: 8233039
    Abstract: A microscope image pickup system includes: alight source; an object lens; a display device; a record device; a capture device for performing a preview mode in which an image of the test object obtained by the object lens is repeatedly captured and a plurality of captured images are continuously displayed on the display device, or an image record mode in which the image of the test object is captured and the captured image is recorded on the record device; an illumination light amount control device for controlling the amount of light of the illumination light; and a system control device for controlling an operation of the illumination light amount control device depending on the preview mode or the image record mode performed by the capture device.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: July 31, 2012
    Assignee: Olympus Corporation
    Inventors: Shinya Sakamoto, Shinichiro Aizaki
  • Publication number: 20120183895
    Abstract: Provided is a magenta toner containing toner particles that contain a colorant and a binder resin, wherein the colorant contains C.I. Pigment Red 57:1 and C.I. Pigment Yellow 180, a mass ratio between the C.I. Pigment Red 57:1 and the C.I. Pigment Yellow 180 being 99:1 to 10000:1, and wherein the binder resin contains a polyester resin that has a repeating unit derived from bisphenol A ethylene oxide represented by formula (1): wherein each of m and n independently represents an integer of 2 to 4.
    Type: Application
    Filed: September 2, 2011
    Publication date: July 19, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Eisuke IWAZAKI, Shinya SAKAMOTO, Tsuyoshi MURAKAMI, Satoshi YOSHIDA, Satoshi INOUE
  • Publication number: 20120118425
    Abstract: This high-strength steel pipe includes, by mass%, C: 0.02% to 0.09%, Mn: 0.4% to 2.5%, Cr: 0.1% to 1.0%, Ti: 0.005% to 0.03%, Nb: 0.005% to 0.3%, and a balance consisting of Fe and inevitable impurities, in which Si, Al, P, S, and N are limited to 0.6% or less, 0.1% or less, 0.02% or less, 0.005% or less, 0.008% or less, respectively, the bainite transformation index BT is 650° C. or less, and the microstructure thereof is a single bainite microstructure including first bainite and second bainite, the first bainite being a gathered microstructure of bainitic ferrite including no carbide, and the second bainite being a mixed microstructure of bainitic ferrite including no carbide and cementite between the bainitic ferrites.
    Type: Application
    Filed: June 10, 2010
    Publication date: May 17, 2012
    Inventors: Kensuke Nagai, Yasuhiro Shinohara, Shinya Sakamoto, Takuya Hara, Hitoshi Asahi
  • Patent number: 8176753
    Abstract: An apparatus for making a glass sheet includes a forming wedge with a pair of inclined forming surface portions converging along a downstream direction to form a root. The apparatus further includes an edge director intersecting with at least one of the pair of downwardly inclined forming surface portions, and a thermal shield configured to reduce heat loss from the edge director. Methods are also provided for reducing heat loss from the edge director with a thermal shield.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: May 15, 2012
    Assignee: Corning Incorporated
    Inventors: Ahdi El Kahlout, Soongyup Jason Lee, Shinya Sakamoto
  • Publication number: 20120077117
    Abstract: The invention provides a yellow toner including toner particles comprising colorants and a binder resin, the colorants including at least a C. I. Pigment yellow 180 and a carmine-based pigment, a weight ratio of the C. I. Pigment yellow 180 to the carmine-based pigment being from about 99:1 to about 10,000:1, the binder resin being a polyester resin comprising a first repeating unit derived from a first diol compound, and the first diol compound being a bisphenol A ethylene oxide represented by the following formula (1): wherein in formula (1), m and n each independently represent an integer of from 2 to 4.
    Type: Application
    Filed: February 2, 2011
    Publication date: March 29, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Eisuke IWAZAKI, Satoshi YOSHIDA, Shinya SAKAMOTO