Patents by Inventor Hideaki Ohara
Hideaki Ohara 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).
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Publication number: 20250102974Abstract: A fixing device includes: a first rotatable member; a second rotatable member disposed in contact with first rotatable member; a pressing member that is disposed along an inner circumferential surface of second rotatable member and presses the inner circumferential surface of the second rotatable member such that the second rotatable member is pressed against the first rotatable member; a sliding member interposed between an inner circumferential surface of second rotatable member and the pressing member; and a lubricant interposed between the inner circumferential surface of the second rotatable member and the sliding member. The inner circumferential surface of the second rotatable member contains a resin having a siloxane group and a conducting material treated with siloxane. A sliding surface of sliding member contains a resin having a siloxane group and a conducting material treated with siloxane. The lubricant contains an oil having a siloxane group in a main chain.Type: ApplicationFiled: April 22, 2024Publication date: March 27, 2025Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji OMORI, Hideaki OHARA, Ryohei YOSHIKAWA
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Patent number: 12256438Abstract: A terminal includes a receiver that receives an index specifying configuration information for transmitting a random access preamble; and a controller that configures, in response to the receiver receiving additional information that specifies a time domain resource for transmitting the random access preamble, the time domain resource specified by the additional information, the time domain resource being configured by replacing a time domain resource for transmitting the random access preamble included in the configuration information specified by the index with the time domain resource specified by the additional information.Type: GrantFiled: July 9, 2019Date of Patent: March 18, 2025Assignee: NTT DOCOMO, INC.Inventors: Hideaki Takahashi, Akihito Hanaki, Hiroki Harada, Tomoya Ohara
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Publication number: 20240411250Abstract: A sliding member having a sliding surface configured to include a heat-resistant thermoplastic resin other than a fluororesin, and resin particles having a siloxane group other than the heat-resistant thermoplastic resin, in which an average particle diameter of the resin particles is 0.1 ?m or more and 10 ?m or less, a surface roughness Rsk of the sliding surface is 1.0 or less, and a surface exposure rate of the resin particles on the sliding surface is 2% or more.Type: ApplicationFiled: March 21, 2024Publication date: December 12, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Hideaki OHARA, Kenji OMORI, Junko YAMASAKI, Ryohei YOSHIKAWA
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Patent number: 12111590Abstract: A fixing device includes: a first rotatable member; a second rotatable member disposed in contact with the first rotatable member; a pressing member that is disposed on an inner circumferential surface of the second rotatable member and presses the inner circumferential surface of the second rotatable member such that the second rotatable member is pressed against the first rotatable member; a sliding member interposed between the inner circumferential surface of the second rotatable member and the pressing member; and a lubricant interposed between the inner circumferential surface of the second rotatable member and the sliding member. The inner circumferential surface of the second rotatable member contains a resin having at least one group selected from the group consisting of an amido group, an imido group, a ketone group, and a sulfide group.Type: GrantFiled: January 11, 2023Date of Patent: October 8, 2024Assignee: FUJIFILM Business Innovation Corp.Inventors: Kenji Omori, Hideaki Ohara, Ryohei Yoshikawa
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Patent number: 12105455Abstract: A sliding member for a fixing device includes a resin layer that includes plural recessed portions on a surface of the resin layer, in which, in a top view, the recessed portion has a shape having a tip angle less than 90° in a sliding direction and an area ratio of an area of the recessed portions to a surface area of the resin layer is 30% or more and 70% or less.Type: GrantFiled: March 26, 2023Date of Patent: October 1, 2024Assignee: FUJIFILM Business Innovation Corp.Inventors: Ryohei Yoshikawa, Kenji Omori, Hideaki Ohara
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Publication number: 20240184231Abstract: A resin film includes a resin layer containing at least one solvent selected from the group consisting of a urea-based solvent, an alkoxy group-containing amide-based solvent, and an ester group-containing amide-based solvent, in which a content of the solvent is more than 2,200 ppm and equal to or less than 10,000 ppm with respect to the entire resin layer.Type: ApplicationFiled: November 14, 2023Publication date: June 6, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Hideaki OHARA, Kenji KAJIWARA
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Publication number: 20240094664Abstract: A fixing device includes: a first rotatable member; a second rotatable member disposed in contact with the first rotatable member; a pressing member that is disposed on an inner circumferential surface of the second rotatable member and presses the inner circumferential surface of the second rotatable member such that the second rotatable member is pressed against the first rotatable member; a sliding member interposed between the inner circumferential surface of the second rotatable member and the pressing member; and a lubricant interposed between the inner circumferential surface of the second rotatable member and the sliding member. The inner circumferential surface of the second rotatable member contains a resin having at least one group selected from the group consisting of an amido group, an imido group, a ketone group, and a sulfide group.Type: ApplicationFiled: January 11, 2023Publication date: March 21, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji OMORI, Hideaki OHARA, Ryohei YOSHIKAWA
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Patent number: 11892789Abstract: A fixing belt, in which, in a measurement of a Fourier transform power spectrum of a surface profile of an inner peripheral surface of the fixing belt, a ratio of an average of a power spectral density at a wavelength of 2 ?m or more and 6 ?m or less to an average of a power spectral density at a wavelength of 10 ?m or more and 50 ?m or less is 0.82 or more and 0.92 or less.Type: GrantFiled: January 11, 2023Date of Patent: February 6, 2024Assignee: FUJIFILM Business Innovation Corp.Inventors: Junko Yamasaki, Kenta Shingu, Hideaki Ohara
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Publication number: 20240027944Abstract: A sliding member for a fixing device includes a resin layer that includes plural recessed portions on a surface of the resin layer, in which, in a top view, the recessed portion has a shape having a tip angle less than 90° in a sliding direction and an area ratio of an area of the recessed portions to a surface area of the resin layer is 30% or more and 70% or less.Type: ApplicationFiled: March 26, 2023Publication date: January 25, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Ryohei YOSHIKAWA, Kenji OMORI, Hideaki OHARA
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Patent number: 11774885Abstract: A polymer material molded product includes a polymer material and a porous carbon material having an X-ray diffraction spectral characteristic shown in the following (1) or (2), (1): a peak derived from a (002) plane of carbon is observed, a half width of the peak derived from the (002) plane of carbon is 5° or more, and a half width of a peak derived from a (10) plane of carbon is 3.2° or less, and (2): the peak derived from the (002) plane of carbon is not observed, and the half width of the peak derived from the (10) plane of carbon is 3.2° or less.Type: GrantFiled: April 18, 2022Date of Patent: October 3, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Kenji Kajiwara, Tomotake Inagaki, Ryohei Yoshikawa, Kenji Omori, Ryosuke Kubota, Jun Kimura, Hideaki Ohara
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Publication number: 20230251596Abstract: A fixing belt, in which, in a measurement of a Fourier transform power spectrum of a surface profile of an inner peripheral surface of the fixing belt, a ratio of an average of a power spectral density at a wavelength of 2 ?m or more and 6 ?m or less to an average of a power spectral density at a wavelength of 10 ?m or more and 50 ?m or less is 0.82 or more and 0.92 or less.Type: ApplicationFiled: January 11, 2023Publication date: August 10, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Junko YAMASAKI, Kenta Shingu, Hideaki Ohara
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Patent number: 11644776Abstract: An endless belt includes a resin and an acicular filler of which a thermal conductivity is 220 W/mK or more and 320 W/mK or less, a volume resistivity is 1011 ?cm or more and 1016 ?cm or less, and a content with respect to the endless belt is 1% by mass or more and 30% by mass or less.Type: GrantFiled: March 31, 2022Date of Patent: May 9, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Hideaki Ohara, Tomotake Inagaki, Ryohei Yoshikawa, Kenji Omori, Kenji Kajiwara, Junko Yamasaki
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Publication number: 20230119004Abstract: A polymer material molded product includes a polymer material and a porous carbon material having an X-ray diffraction spectral characteristic shown in the following (1) or (2), (1): a peak derived from a (002) plane of carbon is observed, a half width of the peak derived from the (002) plane of carbon is 5° or more, and a half width of a peak derived from a (10) plane of carbon is 3.2° or less, and (2): the peak derived from the (002) plane of carbon is not observed, and the half width of the peak derived from the (10) plane of carbon is 3.2° or less.Type: ApplicationFiled: April 18, 2022Publication date: April 20, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji KAJIWARA, Tomotake INAGAKI, Ryohei YOSHIKAWA, Kenji OMORI, Ryosuke KUBOTA, Jun KIMURA, Hideaki OHARA
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Publication number: 20230121642Abstract: An endless belt includes a resin and an acicular filler of which a thermal conductivity is 220 W/mK or more and 320 W/mK or less, a volume resistivity is 1011 ?cm or more and 1016 ?cm or less, and a content with respect to the endless belt is 1% by mass or more and 30% by mass or less.Type: ApplicationFiled: March 31, 2022Publication date: April 20, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Hideaki OHARA, Tomotake INAGAKI, Ryohei YOSHIKAWA, Kenji OMORI, Kenji KAJIWARA, Junko YAMASAKI
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Publication number: 20230081799Abstract: An assistant piece helps in reading descriptions for those who have presbyopia and farsightedness. The piece dispenses with eyeglasses or special instruments and through which piece the letters etc. at hand are readily readable in various situations. The assistant piece has a plurality of ocular sections each having a prescribed area which are provided in juxtaposition on a plate-like sheet member and through which light penetrates and a line of vision introduction section which is provided in the vicinity of the ocular sections and has a larger light penetrating area than the ocular sections, in which the sheet member is provided with a light-shielding section whose transmittance over visible light is lower than those of the ocular sections and the line of vision introduction section; and the ocular sections and the line of vision introduction section are provided within the light-shielding section.Type: ApplicationFiled: February 1, 2021Publication date: March 16, 2023Applicant: HOP LIMITED LIABILITY COMPANYInventor: Hideaki OHARA
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Patent number: 11543758Abstract: A unit includes: a developing device configured to develop an electrostatic charge image that is formed on a surface of an image carrier, as a toner image with a developer including a brilliant toner containing a flat brilliant pigment, the developer being accommodated in the developing device; and a fixing device configured to fix the toner image onto a surface of a recording medium at a fixing temperature of 130° C. or higher and 230° C. or lower that includes a fixing belt, a first roller and a second roller that are disposed inside the fixing belt and support the fixing belt while applying tension to the fixing belt, and a pressure roller, the first roller and the pressure roller sandwiching the fixing belt to form a nip portion.Type: GrantFiled: August 23, 2021Date of Patent: January 3, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Yukiko Kamijo, Hideaki Ohara, Kenji Omori, Junko Yamasaki, Daisuke Nakashima, Yuka Ishihara, Hitoshi Komuro
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Publication number: 20220373949Abstract: An endless belt includes a metal substrate, and a heat-resistant resin layer that is disposed as an innermost layer on an inner peripheral surface of the metal substrate and that contains a resin and a thermally conductive filler having an aspect ratio of 20 or more. In the heat-resistant resin layer, an orientation ratio of the thermally conductive filler with respect to a circumferential direction of the endless belt is 20% or more.Type: ApplicationFiled: September 2, 2021Publication date: November 24, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji Omori, Hideaki Ohara, Tomotake Inagaki, Hitoshi Komuro, Jun Kimura
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Patent number: 11487232Abstract: An endless belt includes a metal substrate, and a heat-resistant resin layer that is disposed as an innermost layer on an inner peripheral surface of the metal substrate and that contains a resin and a thermally conductive filler having an aspect ratio of 20 or more. In the heat-resistant resin layer, an orientation ratio of the thermally conductive filler with respect to a circumferential direction of the endless belt is 20% or more.Type: GrantFiled: September 2, 2021Date of Patent: November 1, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Kenji Omori, Hideaki Ohara, Tomotake Inagaki, Hitoshi Komuro, Jun Kimura
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Publication number: 20220244653Abstract: A unit includes: a developing device configured to develop an electrostatic charge image that is formed on a surface of an image carrier, as a toner image with a developer including a brilliant toner containing a flat brilliant pigment, the developer being accommodated in the developing device; and a fixing device configured to fix the toner image onto a surface of a recording medium at a fixing temperature of 130° C. or higher and 230° C. or lower that includes a fixing belt, a first roller and a second roller that are disposed inside the fixing belt and support the fixing belt while applying tension to the fixing belt, and a pressure roller, the first roller and the pressure roller sandwiching the fixing belt to form a nip portion.Type: ApplicationFiled: August 23, 2021Publication date: August 4, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Yukiko KAMIJO, Hideaki OHARA, Kenji OMORI, Junko YAMASAKI, Daisuke NAKASHIMA, Yuka ISHIHARA, Hitoshi KOMURO
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Patent number: 11359041Abstract: An endless belt includes a substrate layer, and a first surface layer that is disposed on an outer circumferential surface of the substrate layer and that includes a cross-linked fluororesin layer. A layer containing a cross-linked fluororesin forms the inner circumferential surface of the belt. Martens hardness of the inner circumferential surface of the belt at 130° C. is higher than Martens hardness of the outer circumferential surface of the belt at 130° C.Type: GrantFiled: July 1, 2020Date of Patent: June 14, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Hideaki Ohara, Kenji Omori, Junko Yamasaki, Kenta Yamakoshi