Patents by Inventor Tomoya Sasaki
Tomoya Sasaki 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: 20230266684Abstract: An image forming unit includes a photoreceptor and a charging member that comes into contact with a surface of the photoreceptor and charges the photoreceptor, in which the photoreceptor includes a conductive substrate, and a lamination type photosensitive layer disposed on the conductive substrate and including a charge generation layer and a charge transport layer, the charge transport layer contains at least one of a polyester resin that has a constitutional unit having an aromatic ring or a polycarbonate resin that has a constitutional unit having an aromatic ring, the charging member includes a support member and an elastic layer disposed on the support member, and the elastic layer has a storage elastic modulus G? of 5.0 MPa or less at a frequency of 100 Hz in dynamic viscoelasticity measurement under a temperature condition of 24° C.Type: ApplicationFiled: February 19, 2023Publication date: August 24, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Kosuke NARITA, Tomoya Sasaki, Ryosuke Fujii, Kohei Hashimoto, Hiroko Kobayashi, Yuto Okazaki
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Publication number: 20230229261Abstract: A first detection signal creation unit has detection nodes connected to detection electrodes in one-to-one correspondence. The first detection signal creation unit supplies charge from each detection node through a second wire to the relevant detection electrode so that a voltage at the relevant detection node vibrates according to an alternating-current voltage, and creates first detection signals matching the supplied charge. First filters are provided in first paths, each of which branches from an alternating-current output node to a first wire. A phase difference signal creation unit creates a phase difference signal matching the phase difference between the alternating-current voltage and one of the first detection signals.Type: ApplicationFiled: March 20, 2023Publication date: July 20, 2023Inventors: Akihisa IIKURA, Motoshi OI, Tomoya SASAKI
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Publication number: 20230195003Abstract: An electrophotographic photoreceptor includes a conductive substrate, and a lamination type photosensitive layer disposed on the conductive substrate and including a charge generation layer and a charge transport layer, in which the charge transport layer contains a charge transport material and a polyester resin, and a mass proportion of a chemical substance (AA) represented by Formula (AA) in a total mass of the charge transport layer is 2,000 ppm or less. In Formula (AA), X represents an organic group, and mAA represents an integer.Type: ApplicationFiled: November 29, 2022Publication date: June 22, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Tomoya SASAKI, Ryosuke FUJII, Kohei HASHIMOTO, Hiroko KOBAYASHI, Yuto OKAZAKI, Kosuke NARITA
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Patent number: 11680140Abstract: A particle-dispersed polyimide precursor solution contains: a polyimide precursor consisting of a polymer of a tetracarboxylic dianhydride and a diamine containing a fluorene-based diamine having a fluorene skeleton; particles; and an aqueous solvent containing water.Type: GrantFiled: January 11, 2021Date of Patent: June 20, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Hajime Sugahara, Hidekazu Hirose, Kosaku Yoshimura, Tomoya Sasaki, Yasunobu Kashima, Kosuke Nakada, Tomoyo Okubo
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Patent number: 11680156Abstract: A polyimide precursor-containing aqueous composition contains at least one polymer material selected from the group consisting of a water-insoluble fibrous organic substance and a polyalkylene oxide having a viscosity-average molecular weight of 5 million or more, a polyimide precursor, particles, and water.Type: GrantFiled: January 15, 2021Date of Patent: June 20, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Yasunobu Kashima, Kosaku Yoshimura, Tomoya Sasaki, Kosuke Nakada, Hidekazu Hirose
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Patent number: 11673999Abstract: A polyimide precursor solution includes: a polyimide precursor; a resin particle having 55% by weight or more of a structural unit derived from a styrene derivative; and a mixed solvent containing a first organic solvent (S1) and a second organic solvent (S2), wherein the polyimide precursor solution satisfies the following conditions (1) to (4), condition (1): a weight ratio (S1/S2) of the first organic solvent (S1) to the second organic solvent (S2) is from 50/50 to 90/10, condition (2): a HSP distance between the first organic solvent (S1) and the resin particle is 11 or more and less than 16, condition (3): a HSP distance between the second organic solvent (S2) and the resin particle is 16 or more, and condition (4): a HSP distance between the mixed solvent and the polyimide precursor is 12 or less.Type: GrantFiled: August 17, 2020Date of Patent: June 13, 2023Assignee: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Tomoya Sasaki, Hidekazu Hirose
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Publication number: 20230107087Abstract: An electrophotographic photoreceptor includes a conductive substrate, and a lamination type photosensitive layer disposed on the conductive substrate and including a charge generation layer and a charge transport layer, in which the charge transport layer contains a polyester resin (1) having a dicarboxylic acid unit (A) represented by Formula (A) and a diol unit (B) represented by Formula (B), and a charge transport material, and in a case where a weight-average molecular weight Mw of the polyester resin (1) contained in the charge transport layer is defined as A (10,000), a value of a ratio M1/M2 of a mass M1 of the charge transport material contained in the charge transport layer to a mass M2 of the charge transport layer is defined as Cs, and an average thickness of the charge transport layer is defined as Ds (?m), expressions of 5?A?40, 0.28?Cs?0.55, 27?Ds?50, and 2.5?(A×Ds)/(Cs×100)?70.0 are satisfied.Type: ApplicationFiled: September 21, 2022Publication date: April 6, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Tomoya SASAKI, Ryosuke FUJII, Kohei HASHIMOTO, Hiroko KOBAYASHI, Yuto OKAZAKI, Kosuke NARITA
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Publication number: 20230097468Abstract: A coated tool of the present invention includes a base material and a hard coating film on the base material. The hard coating film is a nitride or carbonitride containing aluminum (Al) of 65 atomic % or more 90 atomic % or less, titanium (Ti) of 10 atomic % or more 35 atomic % or less, a total of aluminum (Al) and titanium (Ti) of 85 atomic % or more, and argon (Ar) of 0.20 atomic % or less. The hard coating film satisfies a relationship of Ih×100/Is?12 when a peak intensity of a (010) plane of AlN of a hexagonal close-packed structure is Ih and a sum of peak intensities due to predetermined nine crystal planes of TiN and AlN is Is in an intensity profile obtained from a selected area diffraction pattern of a transmission electron microscope.Type: ApplicationFiled: February 19, 2021Publication date: March 30, 2023Applicants: MOLDINO Tool Engineering, Ltd., Oerlikon Surface Solutions AG, PfaffikonInventors: Tomoya Sasaki, Kazuyuki Kubota, Kumar Yalamanchili, Denis Kurapov, Wolfgang Kalss
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Publication number: 20230058404Abstract: A capacitance detection device has: a first capacitor disposed in the path between a first node connected to a detection electrode and a second node; a second capacitor disposed in the path between the first node and the ground; a third capacitor disposed in the path between the first node and a third node connected to a shield electrode placed in proximity to the detection electrode; an alternating-current voltage output circuit that outputs a first alternating-current voltage to the third node; a first attenuation circuit that outputs a second alternating-current voltage resulting from attenuating the amplitude of the first alternating-current voltage; and a charge amplifier that supplies charge to the first capacitor through the second node and outputs a detection signal matching the supplied charge.Type: ApplicationFiled: November 3, 2022Publication date: February 23, 2023Inventors: Akihisa IIKURA, Tomoya SASAKI
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Publication number: 20230024595Abstract: Provided is a coated cutting tool in which a surface of a substrate is coated with a hard coating film. The hard coating film includes: a layer (A) disposed on the surface of the substrate, and having a face-centered cubic lattice structure, in which the total content ratio of W and Ti is at least 85 atomic %, and which contains W as the most abundant element and Ti as the next most abundant element among metal (including metalloid) elements; and a layer (B) disposed on the layer (A) and having a face-centered cubic lattice structure, which is composed of nitrides or carbonitrides containing Al, Cr, and Si, and in which, among metal (including metalloid) elements, the Al content ratio is at least 50 atomic %, the total content ratio of Al and Cr is at least 85 atomic %, and the Si content ratio is 4 to 15 atomic %.Type: ApplicationFiled: October 12, 2020Publication date: January 26, 2023Applicant: MOLDINO Tool Engineering, Ltd.Inventor: Tomoya Sasaki
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Patent number: 11495863Abstract: A porous polyimide film has plural pores, in which an average flattening of the plural pores is within a range of 0.1 to 0.7, a coefficient of variation of a distance between adjacent pores is within a range of 0.10 to 0.40, and a front surface and aback surface communicate with each other through the plural pores.Type: GrantFiled: April 20, 2020Date of Patent: November 8, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Kosuke Nakada, Hidekazu Hirose, Yasunobu Kashima, Kosaku Yoshimura, Tomoya Sasaki
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Patent number: 11465214Abstract: The present invention discloses a coated cutting tool having a hard coating film on a surface of the tool. The hard coating film is a nitride, the content ratio of titanium (Ti) with respect to a total amount of metal elements (including semimetal elements) is in a range of 70 at % to 95 at %, the content ratio of silicon (Si) with respect to the total amount of metal elements (including semimetal elements) is in a range of 5 at % to 30 at %, and the content ratio of argon (Ar) with respect to the total amount of metal elements (including semimetal elements) and non-metal elements is 0.1 at % or less. The hard coating film has a NaCl type crystal structure and has an average crystal grain size in a range of 5 nm to 30 nm.Type: GrantFiled: March 28, 2017Date of Patent: October 11, 2022Assignees: MOLDINO Tool Engineering, Ltd., HITACHI METALS, LTD., Oerlikon Surface Solutions AG, PfaffikonInventors: Tomoya Sasaki, Shuho Koseki, Kana Morishita, Saleh Abusuilik, Kenichi Inoue, Denis Kurapov, Wolfgang Kalss
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Patent number: 11447942Abstract: A toilet seat device includes a toilet seat, a casing provided in rear of the toilet seat, and a functional component that ejects liquid or that blows out or suctions gas. The functional component is a private part cleaning device that cleans a private part of a sitting person, a blower device that provides warm air into a toilet bowl, or a deodorizing device that deodorizes an inner portion of the toilet bowl, for example. At least part of the functional component is provided in the toilet seat, and the other part of the functional component is provided in the casing.Type: GrantFiled: March 15, 2019Date of Patent: September 20, 2022Assignee: LIXIL CorporationInventors: Kazuki Koga, Hiroaki Watanabe, Tomoya Sasaki, Tsunaki Itou
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Patent number: 11427692Abstract: A polyimide precursor solution contains resin particles and a polyimide precursor. The resin particles in the polyimide precursor solution have a volume particle size distribution with one or more peaks. The volume frequency of a peak having the highest volume frequency of the one or more peaks accounts for 90% to 100% of the total volume frequency of all peaks of the volume particle size distribution.Type: GrantFiled: February 11, 2020Date of Patent: August 30, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Katsumi Nukada, Tomoya Sasaki, Takashi Imai
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Patent number: 11430417Abstract: A data generation device includes: an acquisition part configured to acquire measurement data that corresponds to measurement values, obtained in chronological order, corresponding to a behavior of a key or a member coordinating with the key for each of a plurality of keys; and a data generation part configured to generate display data for displaying a screen showing the measurement values corresponding to each of the plurality of keys along a time axis based on the acquired measurement data.Type: GrantFiled: April 27, 2020Date of Patent: August 30, 2022Assignee: YAMAHA CORPORATIONInventors: Tetsuo Ota, Yoshimasa Isozaki, Yasuhiko Oba, Tomoya Sasaki
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Publication number: 20220226823Abstract: Provided is a liquid supply method capable of accurately mixing a plurality of liquids without providing a complicated liquid supply control mechanism. A liquid supply method using an inspection chip 1, the liquid supply method including: a step of supplying a first liquid from an upstream flow path 4A to a combined flow path 7 and making the first liquid wet and spread on a wall surface of the combined flow path 7 to hold the first liquid in the combined flow path 7; a step of supplying a second liquid from the upstream flow path 4A to the combined flow path 7 and combining the first liquid and the second liquid; and a step of supplying the combined first liquid and the second liquid to a mixing flow path 8, and mixing the first liquid and the second liquid.Type: ApplicationFiled: June 23, 2020Publication date: July 21, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Takamasa KOUNO, Nobuhiko INUI, Tsutomu NAKAMURA, Shoutarou KOBARU, Kazuhiko IMAMURA, Ryousuke TAKAHASHI, Tomoya SASAKI
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Publication number: 20220119596Abstract: A particle-dispersed polyimide precursor solution contains a polyimide precursor having a unit represented by the following formula (I), particles, and a solvent, in which the particle-dispersed polyimide precursor solution satisfies both the following conditions (1) and (2), (in the formula (I), A represents a tetravalent organic group, and B represents a divalent organic group represented by any of the following formulas (B1) to (B4)), (in the formulas (B1) to (B4), Ar1, Ar10, and Ar11 each independently represent a trivalent aromatic group which may have a substituent, Ar2, Ar4, Ar5, Ar7 and Ar8 each independently represent a divalent aromatic group which may have a substituent, Ar3 and Ar6 each independently represent a tetravalent aromatic group which may have a substituent or a group represented by the following formula (II), Ar9 represents a divalent aromatic group which may have a substituent or a group represented by the following formula (III), X1 to X7 each independently represent NType: ApplicationFiled: July 20, 2021Publication date: April 21, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Tomoya SASAKI, Hidekazu HIROSE, Kosaku YOSHIMURA, Yasunobu KASHIMA, Hajime SUGAHARA, Kosuke NAKADA, Tomoyo OKUBO
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Publication number: 20220089829Abstract: A polyimide precursor solution, includes: a polyimide precursor; resin particles having a volume average particle diameter of 5 nm or more and 100 nm or less, and having a volume particle size distribution wherein a ratio of a volume frequency of resin particles having a particle diameter of 150 nm or more to a volume frequency of all of the resin particles in the polyimide precursor solution is 5% or less; and an aqueous solvent containing water.Type: ApplicationFiled: December 21, 2020Publication date: March 24, 2022Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Tomoyo OKUBO, Shunsuke NOZAKI, Tomoya SASAKI, Hidekazu HIROSE
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Publication number: 20220090048Abstract: Provided is a nucleic acid isolation method whereby it becomes possible to extract a nucleic acid in a simple manner without the need to use an alcohol. A nucleic acid isolation method, comprising the steps of: mixing a specimen containing a nucleic acid with an extraction solution to disperse the nucleic acid in the extraction solution; bringing the extraction solution containing the nucleic acid into contact with an anionic adsorbent; bringing a washing solution into contact with the anionic adsorbent; and bringing a collection solution into contact with the anionic adsorbent, the extraction solution containing a protein denaturant, the washing solution containing a basic compound and having a pH value equal to or less than a pKa value of a conjugate acid of the basic compound, and the collection solution having a pH value equal to or more than the pKa value of the conjugate acid of the basic compound.Type: ApplicationFiled: January 17, 2020Publication date: March 24, 2022Applicants: SEKISUI CHEMICAL CO., LTD., SEKISUI MEDICAL CO., LTD.Inventors: Takamasa KOUNO, Nobuhiko INUI, Tsutomu NAKAMURA, Tomoya SASAKI, Sou YAMAGUCHI, Katsura UCHIDA
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Publication number: 20220069413Abstract: A separator for a non-aqueous secondary battery includes: a polyimide porous film; and adhesive resin particles that are attached to a surface of the polyimide porous film and have a responsiveness to at least one of pressure and heat.Type: ApplicationFiled: December 30, 2020Publication date: March 3, 2022Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Kosuke NAKADA, Yasunobu KASHIMA, Kosaku YOSHIMURA, Tomoya SASAKI, Hajime SUGAHARA, Tomoyo OKUBO, Hidekazu HIROSE