Patents by Inventor Hajime SUGAHARA

Hajime SUGAHARA 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: 20210294228
    Abstract: A method for producing a printed material includes providing pressure-induced phase transition particles on a recording medium having an arithmetic average roughness Ra of 0.07 ?m or more and 3.80 ?m or less to form a pressure-induced phase transition particle layer having a coverage C within a range of 30% to 90%; bonding the pressure-induced phase transition particles onto the recording medium; and folding the recording medium having the pressure-induced phase transition particles bonded thereon and pressure-bonding the folded recording medium, or pressure-bonding the recording medium having the pressure-induced phase transition particles bonded thereon and another recording medium placed on top of each other.
    Type: Application
    Filed: August 4, 2020
    Publication date: September 23, 2021
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Yoichiro EMURA, Satoshi KAMIWAKI, Yoshifumi IIDA, Sumiaki YAMASAKI, Takashi HASEGAWA, Hiroshi SAEGUSA, Hajime SUGAHARA, Sachiko NISHIOKA
  • Publication number: 20210277291
    Abstract: A pressure sensitive adhesive particle includes a pressure sensitive adhesive base particle that contains a styrene resin containing styrene and a vinyl monomer other than styrene as polymerization components, and a (meth)acrylate resin containing at least two (meth)acrylates as polymerization components, in which a mass ratio of the (meth)acrylates relative to a total of polymerization components of the (meth)acrylate resin is 90 mass % or more; and an external additive. The pressure sensitive adhesive particle has a surface having an arithmetic average roughness Ra within a range of 0.005 ?m to 0.100 ?m. The pressure sensitive adhesive particle has at least two glass transition temperatures, and the difference between the lowest glass transition temperature and the highest glass transition temperature among the glass transition temperatures of the pressure sensitive adhesive particle is 30° C. or more.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 9, 2021
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Yoshifumi IIDA, Sachiko NISHIOKA, Takashi HASEGAWA, Hajime SUGAHARA, Satomi KASHIWAGI, Yuka ZENITANI, Satoshi INOUE
  • Patent number: 11043718
    Abstract: A porous polyimide film has an acid value within a range of 7 mgKOH/g to 20 mgKOH/g determined by acid-base titration, contains a metal group including alkali metals excluding Li, an alkaline earth metals, and silicon at a total content of 100 ppm or less relative to the porous polyimide film, and has a moisture absorption ratio of 0.5% or less.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: June 22, 2021
    Assignee: FUJIFILM BUSINESS INNOVATION CORP.
    Inventors: Kosaku Yoshimura, Yasunobu Kashima, Hajime Sugahara, Hidekazu Hirose
  • Patent number: 11036153
    Abstract: A toner set includes a color toner and a transparent toner that has a pressure phase transition property. The color toner and the transparent toner satisfy 1.0?tan ?1?4.0 and 1.2?tan ?1/tan ?2?3.0 where tan ?1 represents tan ? of the color toner at 100° C., and tan ?2 represents tan ? of the transparent toner at 100° C.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: June 15, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Takahiro Ishizuka, Yasunobu Kashima, Hajime Sugahara, Susumu Yoshino
  • Publication number: 20210018854
    Abstract: A toner set includes a color toner and a transparent toner that has a pressure phase transition property. The color toner and the transparent toner satisfy 1.0?tan ?1?4.0 and 1.2?tan ?1/tan ?2?3.0 where tan ?1 represents tan ? of the color toner at 100° C., and tan ?2 represents tan ? of the transparent toner at 100° C.
    Type: Application
    Filed: January 14, 2020
    Publication date: January 21, 2021
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takahiro ISHIZUKA, Yasunobu KASHIMA, Hajime SUGAHARA, Susumu YOSHINO
  • Publication number: 20200274126
    Abstract: An all-solid-state battery includes a positive electrode active material layer containing a positive electrode active material; a negative electrode active material layer containing a negative electrode active material; and a solid electrolyte layer containing a solid electrolyte and a porous polyimide film which holds the solid electrolyte. The porous polyimide film has a void ratio of 60% or more and 80% or less and a pore diameter of 0.1 ?m or more and 10 ?m or less.
    Type: Application
    Filed: July 24, 2019
    Publication date: August 27, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hajime SUGAHARA, Hidekazu HIROSE, Tomoya SASAKI, Kosaku YOSHIMURA, Yasunobu KASHIMA
  • Publication number: 20200266409
    Abstract: A porous polyimide film has an acid value within a range of 7 mgKOH/g to 20 mgKOH/g determined by acid-base titration, contains a metal group including alkali metals excluding Li, an alkaline earth metals, and silicon at a total content of 100 ppm or less relative to the porous polyimide film, and has a moisture absorption ratio of 0.5% or less.
    Type: Application
    Filed: September 5, 2019
    Publication date: August 20, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kosaku YOSHIMURA, Yasunobu KASHIMA, Hajime SUGAHARA, Hidekazu HIROSE
  • Publication number: 20200239656
    Abstract: There is provided a porous polyimide film in which the pore distribution width A represented by the following formula is 1.15 or less, the average pore diameter is within a range of 0.50 ?m to 3.0 ?m, and the air permeation speed is 30 seconds or less: A=(D84/D16)1/2 wherein D16 is the pore diameter at 16% cumulation from the small diameter side of pores, and D84 is the pore diameter at 84% cumulation from the small diameter side of pores.
    Type: Application
    Filed: August 14, 2019
    Publication date: July 30, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yasunobu KASHIMA, Kosaku YOSHIMURA, Hajime SUGAHARA, Hidekazu HIROSE
  • Patent number: 10542623
    Abstract: A porous polyimide shaped article has a thickness in a range from 550 ?m to 3,000 ?m and has a relative dielectric constant of 1.8 or less and a dielectric loss tangent of 0.01 or less at 1 MHz. The porous polyimide shaped article satisfies the following formula: 1.2?A?1.6 wherein A represents a square root of a ratio of a pore size D84 where a cumulative percentage by number of pores from smaller sizes is 84% to a pore size D16 where the cumulative percentage by number of the pores from smaller sizes is 16% ((D84/D16)1/2) in a pore size distribution measured by mercury intrusion porosimetry.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: January 21, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hajime Sugahara, Hidekazu Hirose, Katsumi Nukada, Tomoya Sasaki, Kosaku Yoshimura, Akira Imai
  • Publication number: 20190239350
    Abstract: A porous polyimide shaped article has a thickness in a range from 550 ?m to 3,000 ?m and has a relative dielectric constant of 1.8 or less and a dielectric loss tangent of 0.01 or less at 1 MHz. The porous polyimide shaped article satisfies the following formula: 1.2?A?1.6 wherein A represents a square root of a ratio of a pore size D84 where a cumulative percentage by number of pores from smaller sizes is 84% to a pore size D16 where the cumulative percentage by number of the pores from smaller sizes is 16% ((D84/D16)1/2) in a pore size distribution measured by mercury intrusion porosimetry.
    Type: Application
    Filed: October 23, 2018
    Publication date: August 1, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hajime SUGAHARA, Hidekazu HIROSE, Katsumi NUKADA, Tomoya SASAKI, Kosaku YOSHIMURA, Akira IMAI
  • Publication number: 20190225805
    Abstract: A rubber-particle-dispersed polyimide resin solution contains at least one resin selected from the group consisting of polyimide precursors and polyimides having a solubility of 1% by mass or more in an aprotic polar solvent; rubber particles; and a solvent including a poor solvent for the rubber particles.
    Type: Application
    Filed: September 26, 2018
    Publication date: July 25, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomoya SASAKI, Hidekazu HIROSE, Katsumi NUKADA, Kosaku YOSHIMURA, Akira IMAI, Hajime SUGAHARA
  • Publication number: 20190230766
    Abstract: An organic electroluminescent device includes an anode and a cathode that are a pair of electrodes, at least one of the electrodes being transparent or translucent; and an organic compound layer interposed between the electrodes, the organic compound layer including at least one layer containing a cured film obtained from a composition that contains an amine compound having six or more crosslinkable groups. The cured film has a residual film ratio of 90% or more after a condition described below, and a rate of change in surface roughness Ra of the cured film before and after the condition described below is 0.99 or more: condition: placing toluene on the cured film and leaving toluene thereon for 30 seconds.
    Type: Application
    Filed: September 18, 2018
    Publication date: July 25, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hajime SUGAHARA, Katsumi NUKADA, Hidekazu HIROSE