Patents by Inventor Hideaki Yoshikawa

Hideaki Yoshikawa 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: 20210222017
    Abstract: A glittering writing/drawing material composition includes a solvent, a lustrous particle having metallic luster and dispersed in the solvent, and at least one dye dissolved in the solvent. A hue difference between a first hue and a second hue is 108° or less in a hue circle in a Munsell color system, where the first hue is measured on the lustrous particle in a solid state with a spectrocolorimeter, and the second hue is measured on a liquid composition obtained by removing the lustrous particle from the glittering writing/drawing material composition and applied on a white wood-free paper with the spectrocolorimeter. The lustrous particle has a coverage of 1.0% or more and 70.0% or less on a surface layer of a drawing object formed by the glittering writing/drawing material composition.
    Type: Application
    Filed: May 30, 2016
    Publication date: July 22, 2021
    Inventors: Aya OTSUBO, Katsunori YOSHIKAWA, Hideaki SHIMIZU, Hirokatsu HATSUYA, Yoshinori FURUYA
  • Patent number: 11067928
    Abstract: A fixing member includes a substrate layer including a resin; a first metal layer that is provided on an outer peripheral surface of the substrate layer and including Cu; a second metal layer that is provided on the outer peripheral surface of the first metal layer so as to be in contact with the first metal layer, includes Ni, and has crystal orientation indexes of 0.80 to 1.30 for a (111) plane, 0.80 to 1.50 for a (200) plane, and 0.70 to 1.30 for a (311) plane; and an elastic layer that is provided on an outer peripheral surface of the second metal layer.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: July 20, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Tomotake Inagaki, Yusuke Watanabe, Tomoko Suzuki, Hideaki Ohara, Ryohei Yoshikawa
  • Patent number: 11045797
    Abstract: A filter includes a filter medium having an average pore size of 1 to 5 mm, and photocatalyst particles deposited on the filter medium. The photocatalyst particle contains a titanium compound particle and a metal compound bonded to the surface of the titanium compound particle with an oxygen atom. The metal compound contains a metal atom and a hydrocarbon group. The titanium compound particle has absorption at wavelengths of 450 nm and 750 nm in the visible absorption spectrum of the titanium compound particle.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: June 29, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Sakae Takeuchi, Hiroyoshi Okuno, Hideaki Yoshikawa, Takeshi Iwanaga, Yuka Zenitani
  • Patent number: 11040899
    Abstract: A water purification member includes a porous body; and photocatalyst particles loaded on the porous body and including titanium-based compound particles that have, via an oxygen atom, a surface-bonded metallic compound having a metal atom and a hydrocarbon group, that exhibit absorption at a wavelength of 500 nm in a visible absorption spectrum, and that have an absorption peak in a range of 2700 cm?1 to 3000 cm?1 in an infrared absorption spectrum.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: June 22, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Hiroyoshi Okuno, Hideaki Yoshikawa, Takeshi Iwanaga, Sakae Takeuchi
  • Publication number: 20210130587
    Abstract: A resin composition includes a cellulose acylate (A); and an aromatic compound (B) not containing a functional group that reacts with the cellulose acylate (A), but containing a long-chain aliphatic group and at least one of a phenolic hydroxy group and a monoglycidyl ether group directly bonded to an aromatic group of the aromatic compound (B), in which a mass ratio (B)/(A) of the aromatic compound (B) to the cellulose acylate (A) is 0.15 or more.
    Type: Application
    Filed: April 21, 2020
    Publication date: May 6, 2021
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kenji YAO, Hideaki YOSHIKAWA
  • Patent number: 10870105
    Abstract: Metatitanic acid particles have absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum, have a surface to which a metal compound having a metal atom and a carbon atom is bonded through an oxygen atom, and satisfy the following inequality: 0.03?A?0.3, wherein A represents a value of {(peak intensity of C—O bond+peak intensity of C?O bond)/(peak intensity of C—C bond+peak intensity of C?C bond} in a C 1s XPS spectrum.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: December 22, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Takeshi Iwanaga, Hideaki Yoshikawa, Hiroyoshi Okuno, Yasunobu Kashima, Sakae Takeuchi
  • Patent number: 10807058
    Abstract: A silica-titania composite aerogel particle includes: a base particle including silicon and titanium whose element ratio Si/Ti is more than 0 and 6 or less; and a surface layer present on the base particle and including a metal compound having a metal atom and a hydrocarbon group. The silica-titania composite aerogel particle has absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum, has a BET specific surface area in the range of 200 m2/g to 1,200 m2/g, and has a value A in the range of 0.03 to 0.3. The value A is calculated by formula: A=(peak intensity of C—O bond+peak intensity of C?O bond)/(peak intensity of C—C bond+peak intensity of C?C bond). The peak intensity is obtained from a C is XPS spectrum.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 20, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasuo Kadokura, Yuka Zenitani, Hiroyoshi Okuno, Hideaki Yoshikawa, Yasunobu Kashima, Takeshi Iwanaga, Shunsuke Nozaki, Sakae Takeuchi
  • Patent number: 10807070
    Abstract: Provided is a silica titania composite aerogel particle including a base particle in which an element ratio Si/Ti of silicon to titanium is greater than 0 and equal to or lower than 6. A BET specific surface area of the silica titania composite particle is within a range of 200 m2/g to 1200 m2/g, and the silica titania composite particle has absorption at wavelengths of 450 nm and 750 nm.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: October 20, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasunobu Kashima, Hideaki Yoshikawa, Yasuo Kadokura, Takeshi Iwanaga, Shunsuke Nozaki, Sakae Takeuchi, Yuka Zenitani, Hiroyoshi Okuno
  • Patent number: 10792641
    Abstract: A structure includes a base material; a surface layer that contains a binder resin and a titanium compound particle having absorption at 450 nm and 750 nm in a visible absorption spectrum and a BET specific surface area within a range of 100 m2/g to 1200 m2/g.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: October 6, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Sakae Takeuchi, Hideaki Yoshikawa, Hiroyoshi Okuno, Yasunobu Kashima, Takeshi Iwanaga
  • Publication number: 20200288652
    Abstract: A medium for water culture has a porous substance and photocatalyst particles formed of titanium-based compound particles that are supported on the porous substance, have absorption at a wavelength of 500 nm in a visible absorption spectrum, and have an absorption peak at 2,700 cm?1 to 3,000 cm?1 in an infrared absorption spectrum, in which a metal compound having a metal atom and a hydrocarbon group is bonded to the surface of each of the titanium-based compound particles through an oxygen atom.
    Type: Application
    Filed: July 24, 2019
    Publication date: September 17, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hideaki YOSHIKAWA, Hiroyoshi OKUNO, Takeshi IWANAGA, Sakae TAKEUCHI
  • Publication number: 20200288655
    Abstract: Water purification particles have porous particles and photocatalyst particles formed of titanium-based compound particles that are supported on the porous particles, have absorption at a wavelength of 500 nm in a visible absorption spectrum, and have an absorption peak at 2,700 cm?1 to 3,000 cm?1 in an infrared absorption spectrum, and a metal compound having a metal atom and a hydrocarbon group is bonded to the surface of each of the titanium-based compound particles through an oxygen atom.
    Type: Application
    Filed: August 1, 2019
    Publication date: September 17, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takeshi IWANAGA, Hiroyoshi OKUNO, Hideaki YOSHIKAWA, Sakae TAKEUCHI
  • Publication number: 20200290906
    Abstract: A water purification member includes a porous body; and photocatalyst particles loaded on the porous body and including titanium-based compound particles that have, via an oxygen atom, a surface-bonded metallic compound having a metal atom and a hydrocarbon group, that exhibit absorption at a wavelength of 500 nm in a visible absorption spectrum, and that have an absorption peak in a range of 2700 cm?1 to 3000 cm?1 in an infrared absorption spectrum.
    Type: Application
    Filed: July 22, 2019
    Publication date: September 17, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroyoshi OKUNO, Hideaki YOSHIKAWA, Takeshi IWANAGA, Sakae TAKEUCHI
  • Patent number: 10722866
    Abstract: A titanium oxide film by continuous titanium oxide, includes a metallic compound that has a metal atom and a hydrocarbon group and is bonded to a surface of the film, in which absorption occurs at wavelengths of 450 nm and 750 nm.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: July 28, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hideaki Yoshikawa, Sakae Takeuchi, Yasunobu Kashima, Takeshi Iwanaga, Hiroyoshi Okuno
  • Patent number: 10668456
    Abstract: A titanium oxide particle includes a metal having a hydrocarbon group, which is bonded to a surface of the titanium oxide particle through an oxygen atom, and absorbs light having a wavelength of 450 nm and light having a wavelength of 750 nm, wherein an element ratio C/Ti between carbon C and titanium Ti in a surface of the titanium oxide particle is from 0.3 to 1.2, and a reduced amount of C/Ti on the surface of the titanium oxide particle before and after irradiation with an ultraviolet ray having a wavelength of 352 nm and at an irradiation intensity of 1.3 mW/cm2 for 20 hours is from 0.1 to 0.9.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: June 2, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Takeshi Iwanaga, Hiroyoshi Okuno, Hideaki Yoshikawa, Yasunobu Kashima, Sakae Takeuchi
  • Patent number: 10668457
    Abstract: A metatitanic acid particle includes a metal having a hydrocarbon group, which is bonded to a surface of the metatitanic acid particle through an oxygen atom, and absorbs light having a wavelength of 450 nm and light having a wavelength of 750 nm, wherein an element ratio C/Ti between carbon C and titanium Ti in a surface of the metatitanic acid particle is from 0.3 to 1.2, and a reduced amount of C/Ti on the surface of the metatitanic acid particle before and after irradiation with an ultraviolet ray having a wavelength of 352 nm and at an irradiation intensity of 1.3 mW/cm2 for 20 hours is from 0.1 to 0.9.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: June 2, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroyoshi Okuno, Hideaki Yoshikawa, Yasunobu Kashima, Takeshi Iwanaga, Sakae Takeuchi
  • Publication number: 20200094235
    Abstract: A filter includes a filter medium having an average pore size of 1 to 5 min, and photocatalyst particles deposited on the filter medium. The photocatalyst particle contains a titanium compound particle and a metal compound bonded to the surface of the titanium compound particle with an oxygen atom. The metal compound contains a metal atom and a hydrocarbon group. The titanium compound particle has absorption at wavelengths of 450 nm and 750 nm in the visible absorption spectrum of the titanium compound particle.
    Type: Application
    Filed: April 10, 2019
    Publication date: March 26, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Sakae TAKEUCHI, Hiroyoshi OKUNO, Hideaki YOSHIKAWA, Takeshi IWANAGA, Yuka ZENITANI
  • Publication number: 20200094236
    Abstract: A filter includes a filter body containing a paper sheet having a surface roughness of 1.0 ?m or more and 10.0 ?m or less, and a photocatalyst particle held on the filter body and having a surface to which a metal compound having a metal atom and a hydrocarbon group is bonded via an oxygen atom. The photocatalyst particle is formed of a titanium compound particle having absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum.
    Type: Application
    Filed: April 15, 2019
    Publication date: March 26, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takeshi IWANAGA, Hiroyoshi OKUNO, Hideaki YOSHIKAWA, Sakae TAKEUCHI, Yuka ZENITANI
  • Publication number: 20200085060
    Abstract: A plant protection agent includes a photocatalyst particle containing a titanium oxide compound. The surface of the photocatalyst particle is modified with a metal compound that includes a metal atom and a hydrocarbon group. The photocatalyst particle has absorption at a wavelength of 550 nm.
    Type: Application
    Filed: January 24, 2019
    Publication date: March 19, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroyoshi OKUNO, Hideaki YOSHIKAWA, Takeshi IWANAGA, Sakae TAKEUCHI, Yuka ZENITANI, Yasuhiro KUSUMOTO
  • Publication number: 20200085062
    Abstract: A plant protection agent includes a photocatalyst particle including a titanium oxide compound. The surface of the photocatalyst particle is modified with a metal compound that includes a metal atom and a hydrocarbon group. The photocatalyst particle has absorption at a wavelength of 550 nm. The change in the absorbance of the photocatalyst particle at the wavelength of 550 nm which occurs when the photocatalyst particle is irradiated with white light having an illuminance of 3000 lux for 24 hours is 10% or more.
    Type: Application
    Filed: January 28, 2019
    Publication date: March 19, 2020
    Applicant: FUJI XEROX CO.,LTD.
    Inventors: Hiroyoshi OKUNO, Hideaki YOSHIKAWA, Takeshi IWANAGA, Sakae TAKEUCHI, Yuka ZENITANI, Yasuhiro KUSUMOTO
  • Publication number: 20200070125
    Abstract: A filter includes resin particles and photocatalyst particles having absorption at wavelengths of 450 nm and 750 nm in the visible absorption spectrum. The photocatalyst particles are present on the surface of the resin particle.
    Type: Application
    Filed: March 25, 2019
    Publication date: March 5, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Sakae TAKEUCHI, Hideaki YOSHIKAWA, Hiroyoshi OKUNO, Yoshitake OGURA, Takeshi IWANAGA