Patents by Inventor Kota MAKI
Kota MAKI 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: 20240142418Abstract: Provided is a gas sensor including a housing made of metal through which a sensor element is inserted and an outer cylinder made of metal welded to an outer periphery of the housing, in which generation of pinholes on a surface of a welded portion is suppressed. In a gas sensor according to one aspect of the present invention, a contact distance Lg, which is a length in an axial direction of an outer peripheral surface of a housing in contact with an inner peripheral surface of an outer cylinder on a rear end side with respect to a molten portion of the outer cylinder formed by welding, is equal to or less than a reference distance Lr.Type: ApplicationFiled: October 19, 2023Publication date: May 2, 2024Inventors: Shintaro MAKI, Kota KATAGIRI, Satoru SHIRAISHI, Kohei YAITA, Yuya SEIKE, Daiki HAMAMOTO
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Publication number: 20240012343Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoat layer disposed on the conductive substrate, and a photosensitive layer disposed on the undercoat layer, in which the undercoat layer contains an organic pigment and a binder resin and satisfies Expressions (A1) and (B1), ?r(Max)?7.0??Expression (A1) tan ?(Max)?0.5??Expression (B1) ?r (Max) represents a maximum value of a relative permittivity at a measurement frequency of 10 Hz to 3,000 Hz and tan ?(Max) represents a maximum value of a dielectric loss tangent at the measurement frequency of 10 Hz to 3,000 Hz, which are acquired by measuring an impedance of the undercoat layer at a temperature of 22° C. and a relative humidity of 50%.Type: ApplicationFiled: March 24, 2023Publication date: January 11, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Kota Maki, Masahiro Iwasaki
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Patent number: 11215935Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoating layer that is disposed on the conductive substrate, and a photosensitive layer that is disposed on the undercoating layer, in which the undercoating layer contains at least one perinone compound selected from the group consisting of the compounds represented by Formulas (1) and (2), and at least one acceptor compound selected from the group consisting of compounds represented by Formula (3) to (15) which are shown in the specification.Type: GrantFiled: July 12, 2020Date of Patent: January 4, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Masahiro Iwasaki, Wataru Yamada, Kenji Kajiwara, Kota Maki
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Patent number: 11169455Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoating layer, and a photosensitive layer. The undercoating layer that is provided on the conductive substrate and includes a binder resin and a charge transporting material. The binder resin includes a resin obtained by polymerizing a diallyl phthalate compound. The photosensitive layer that is provided on the undercoating layer.Type: GrantFiled: July 12, 2020Date of Patent: November 9, 2021Assignee: FUJIFILM Business Innovation Corp.Inventors: Masahiro Iwasaki, Wataru Yamada, Kenji Kajiwara, Kota Maki
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Patent number: 11150567Abstract: An electrophotographic photoreceptor includes a conductive substrate; an undercoat layer that is disposed on the conductive substrate and contains metal titanate compound particles, an electron transporting compound, and a binder resin; and a photosensitive layer on the undercoat layer.Type: GrantFiled: July 24, 2019Date of Patent: October 19, 2021Assignee: FUJIFILM Business Innovation Corp.Inventors: Kota Maki, Masahiro Iwasaki, Kenji Kajiwara
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Publication number: 20200341393Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoating layer that is disposed on the conductive substrate, and a photosensitive layer that is disposed on the undercoating layer, in which the undercoating layer contains at least one perinone compound selected from the group consisting of the compounds represented by Formulas (1) and (2), and at least one acceptor compound selected from the group consisting of compounds represented by Formula (3) to (15) which are shown in the specification.Type: ApplicationFiled: July 12, 2020Publication date: October 29, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Masahiro IWASAKI, Wataru YAMADA, Kenji KAJIWARA, Kota MAKI
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Publication number: 20200341392Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoating layer, and a photosensitive layer. The undercoating layer that is provided on the conductive substrate and includes a binder resin and a charge transporting material. The binder resin includes a resin obtained by polymerizing a diallyl phthalate compound. The photosensitive layer that is provided on the undercoating layer.Type: ApplicationFiled: July 12, 2020Publication date: October 29, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Masahiro IWASAKI, Wataru YAMADA, Kenji KAJIWARA, Kota MAKI
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Publication number: 20200301295Abstract: An electrophotographic photoreceptor includes a conductive substrate; an undercoat layer that is disposed on the conductive substrate and contains metal titanate compound particles, an electron transporting compound, and a binder resin; and a photosensitive layer on the undercoat layer.Type: ApplicationFiled: July 24, 2019Publication date: September 24, 2020Applicant: FUJI XEROX CO.LTD.Inventors: Kota MAKI, Masahiro IWASAKI, Kenji KAJIWARA
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Patent number: 10754266Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoating layer that is disposed on the conductive substrate, and a photosensitive layer that is disposed on the undercoating layer, in which the undercoating layer contains at least one perinone compound selected from the group consisting of a compound represented by Formula (1) and a compound represented by Formula (2) which are shown below, and polyurethane, contains at least one perinone compound selected from the group consisting of the compounds represented by Formulas (1) and (2), and at least one acceptor compound selected from the group consisting of compounds represented by Formula (3) to (15) which are shown in the specification, or contains a resin obtained by polymerizing a diallyl phthalate compound and a charge transporting material.Type: GrantFiled: February 1, 2019Date of Patent: August 25, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Masahiro Iwasaki, Wataru Yamada, Kenji Kajiwara, Kota Maki
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Patent number: 10712679Abstract: An electrophotographic photoreceptor includes a conductive substrate; an undercoat layer on the conductive substrate, the undercoat layer containing at least one perinone compound selected from the group consisting of a compound represented by general formula (1) and a compound represented by general formula (2) below, metal oxide particles of at least one type selected from the group consisting of aluminum oxide particles, iron oxide particles, copper oxide particles, magnesium oxide particles, calcium oxide particles, and silicon dioxide particles, and a binder resin, the undercoat layer having a thickness of 1 ?m or more and 10 ?m or less; and a photosensitive layer on the undercoat layer.Type: GrantFiled: July 17, 2019Date of Patent: July 14, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Kenji Kajiwara, Wataru Yamada, Masahiro Iwasaki, Kota Maki
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Patent number: 10642173Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoat layer on the conductive substrate, and a photosensitive layer on the undercoat layer. The undercoat layer contains at least one perinone compound selected from the group consisting of a compound represented by general formula (1) below and a compound represented by general formula (2) below, an amine compound (A) having an ionization potential of 5.4 eV or more and 5.Type: GrantFiled: April 16, 2019Date of Patent: May 5, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Masahiro Iwasaki, Kota Maki, Kenji Kajiwara, Wataru Yamada
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Publication number: 20200096884Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoating layer that is disposed on the conductive substrate, and a photosensitive layer that is disposed on the undercoating layer, in which the undercoating layer contains at least one perinone compound selected from the group consisting of a compound represented by Formula (1) and a compound represented by Formula (2) which are shown below, and polyurethane, contains at least one perinone compound selected from the group consisting of the compounds represented by Formulas (1) and (2), and at least one acceptor compound selected from the group consisting of compounds represented by Formula (3) to (15) which are shown in the specification, or contains a resin obtained by polymerizing a diallyl phthalate compound and a charge transporting material.Type: ApplicationFiled: February 1, 2019Publication date: March 26, 2020Applicant: FUJI XEROX CO.,LTD.Inventors: Masahiro IWASAKI, Wataru YAMADA, Kenji KAJIWARA, Kota MAKI
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Publication number: 20170277048Abstract: An electrophotographic photoreceptor includes a charge generation layer including a charge generating material and a hindered phenol antioxidant, and a charge transport layer including a charge transport material represented by formula (CT1) and a charge transport material represented by formula (CT2): wherein RC11, RC12, RC13, RC14, RC15 and RC16 each independently represent a hydrogen atom, a halogen atom, an alkyl group having from 1 to 20 carbon atoms, an alkoxy group having from 1 to 20 carbon atoms, or an aryl group having from 6 to 30 carbon atoms, and n and m each independently represent 0, 1, or 2; and wherein RC21, RC22 , and RC23 each independently represent a hydrogen atom, a halogen atom, an alkyl group having from 1 to 10 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, or an aryl group having from 6 to 10 carbon atoms.Type: ApplicationFiled: August 23, 2016Publication date: September 28, 2017Applicant: FUJI XEROX CO., LTD.Inventors: Kota MAKI, Shigeto HASHIBA