Patents by Inventor Sakae Takeuchi

Sakae Takeuchi 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).

  • WATER PURIFICATION MEMBER, HYDROPONIC SYSTEM, AND WATER PURIFICATION APPARATUS
    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
  • WATER PURIFICATION PARTICLES, WATER CULTURE APPARATUS, AND WATER PURIFICATION APPARATUS
    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
  • Titanium oxide film and structure
    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
  • Metatitanic acid particle, composition for forming photocatalyst, and photocatalyst
    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
  • Titanium oxide particle, composition for forming photocatalyst, and photocatalyst
    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
  • FILTER
    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
  • FILTER
    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
  • PLANT PROTECTION AGENT
    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
  • PLANT PROTECTION AGENT
    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
  • FILTER
    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
  • Silica particle and method of preparing silica particle
    Patent number: 10570020
    Abstract: A silica particle has a compression and aggregation degree of from 60% to 95% and a particle compression ratio of from 0.20 to 0.40.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: February 25, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima, Yuka Zenitani, Yoshifumi Eri, Yasuo Kadokura, Yasuhisa Morooka, Shunsuke Nozaki, Takeshi Iwanaga, Sakae Takeuchi
  • Titanium oxide aerogel particle, photocatalyst-forming composition, and photocatalyst
    Patent number: 10563018
    Abstract: A titanium oxide aerogel particle has absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum, a surface to which a metal compound containing a metal atom and a hydrocarbon group is bonded via an oxygen atom, a BET specific surface area in a range of 120 m2/g to 1,000 m2/g, and a value A is 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)}. In the formula, the peak intensity is a value determined from a C 1s XPS spectrum.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: February 18, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hideaki Yoshikawa, Hiroyoshi Okuno, Yasunobu Kashima, Takeshi Iwanaga, Sakae Takeuchi, Yuka Zenitani, Shunsuke Nozaki, Yasuo Kadokura
  • SILICA-TITANIA COMPOSITE AND STRUCTURE
    Publication number: 20200039830
    Abstract: A silica-titania composite has a BET specific surface area, as determined by BET analysis of a water vapor adsorption isotherm, in the range of 250 m2/g to 500 m2/g and a contact angle with water of 100° or greater. In the water vapor adsorption isotherm, an adsorbed amount at relative pressure P/P0=0.1 is in a range of 65 cm3/g to 120 cm3/g, an adsorbed amount at relative pressure P/P0=0.5 is in a range of 150 cm3/g to 300 cm3/g, and an adsorbed amount at relative pressure P/P0=0.9 is in a range of 350 cm3/g to 500 cm3/g.
    Type: Application
    Filed: March 19, 2019
    Publication date: February 6, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yuka ZENITANI, Hiroyoshi OKUNO, Hideaki YOSHIKAWA, Takeshi IWANAGA, Shunsuke NOZAKI, Sakae TAKEUCHI
  • Titanium oxide aerogel particle, photocatalyst forming composition, and photocatalyst
    Patent number: 10538434
    Abstract: A titanium oxide aerogel particle includes a metallic compound that has a metal atom and a hydrocarbon group, the metallic compound being bonded to a surface of the aerogel particle via an oxygen atom. The titanium oxide aerogel particle has a BET specific surface area of 120 m2/g to 1000 m2/g, and has absorption at wavelengths of 450 nm and 750 nm.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: January 21, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Sakae Takeuchi, Hiroyoshi Okuno, Hideaki Yoshikawa, Yasuo Kadokura, Yasunobu Kashima, Takeshi Iwanaga, Shunsuke Nozaki, Yuka Zenitani
  • Titanium oxide particle, composition for forming photocatalyst, and photocatalyst
    Patent number: 10512895
    Abstract: A titanium oxide particle includes a metal compound having a titanium metal atom and a carbon atom, and being bonded to a surface of the particle via an oxygen atom, wherein an element ratio (C/Ti) between carbon and titanium on the surface is in a range of 0.2 to 1.1 and the titanium oxide particle has an absorption at a wavelength of each of 450 nm and 750 nm in a visible absorption spectrum.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: December 24, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroyoshi Okuno, Hideaki Yoshikawa, Yasunobu Kashima, Takeshi Iwanaga, Sakae Takeuchi
  • Metatitanic acid particle, composition for forming photocatalyst, and photocatalyst
    Patent number: 10500579
    Abstract: A metatitanic acid particle includes a metal compound having a titanium metal atom and a carbon atom, and being bonded to a surface of the particle via an oxygen atom, wherein an element ratio (C/Ti) between carbon and titanium on the surface is in a range of 0.2 to 1.1 and the metatitanic acid particle has an absorption at a wavelength of each of 450 nm and 750 nm in a visible absorption spectrum.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: December 10, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hideaki Yoshikawa, Yasunobu Kashima, Takeshi Iwanaga, Sakae Takeuchi, Hiroyoshi Okuno
  • Titanium oxide particle and method for producing the same
    Patent number: 10471417
    Abstract: A titanium oxide particle surface-treated with a silane compound having a hydrocarbon group has absorption at a wavelength of about 400 nm or more and about 800 nm or less in an ultraviolet-visible absorption spectrum, and has an absorption peak at a wave number of about 2700 cm?1 or more and about 3000 cm?1 or less in an infrared absorption spectrum.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: November 12, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hidekazu Hirose, Hideaki Yoshikawa, Hiroyoshi Okuno, Takeshi Iwanaga, Yasunobu Kashima, Wataru Yamada, Sakae Takeuchi, Atsushi Sugitate
  • STRUCTURE
    Publication number: 20190255515
    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: Application
    Filed: August 30, 2018
    Publication date: August 22, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Sakae TAKEUCHI, Hideaki YOSHIKAWA, Hiroyoshi OKUNO, Yasunobu KASHIMA, Takeshi IWANAGA
  • TITANIUM OXIDE FILM AND STRUCTURE
    Publication number: 20190224648
    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: Application
    Filed: September 3, 2018
    Publication date: July 25, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hideaki YOSHIKAWA, Sakae TAKEUCHI, Yasunobu KASHIMA, Takeshi IWANAGA, Hiroyoshi OKUNO
  • Silica particle comprising a titania coating and method for producing the same
    Patent number: 10265680
    Abstract: A silica particle includes a silica particle body and a titania coating layer formed on a surface of the silica particle body through a reaction of a titanium compound having a structure in which a hydrocarbon group bonds to a titanium atom through an oxygen atom. The silica particle has absorption at a wavelength of about 400 nm or more and about 800 nm or less in an ultraviolet-visible absorption spectrum.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: April 23, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hideaki Yoshikawa, Hidekazu Hirose, Hiroyoshi Okuno, Takeshi Iwanaga, Yasunobu Kashima, Wataru Yamada, Sakae Takeuchi, Atsushi Sugitate