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).

  • Publication number: 20140295334
    Abstract: An electrophotographic photoreceptor includes a conductive substrate; an organic photosensitive layer that is provided on the conductive substrate; and an inorganic protective layer that is provided on the organic photosensitive layer so as to be in contact with a surface of the organic photosensitive layer, wherein the organic photosensitive layer includes at least a charge transport material and silica particles in a region on the surface side in contact with the inorganic protective layer.
    Type: Application
    Filed: September 3, 2013
    Publication date: October 2, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masaki HIRAKATA, Hideya KATSUHARA, Takeshi IWANAGA, Nobuyuki TORIGOE, Takashi IMAI, Tomoya SASAKI, Shigeto HASHIBA, Kenta IDE
  • Patent number: 8846280
    Abstract: Provided is a compound represented by the following General Formula (I): wherein in General Formula (I), F represents a charge transporting subunit, L represents a linking group having a valency of (n+1) that is formed by combining two or more kinds selected from a group consisting of an alkylene group, —C?C— (an alkenylene group), —C(?O)—, —N(R)—, —O—, and —S—, and R represents a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group, m represents an integer of from 1 to 6, and n represents an integer of from 2 to 3.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: September 30, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Wataru Yamada, Katsumi Nukada, Yuko Iwadate, Tomoya Sasaki, Kenji Kajiwara
  • Patent number: 8808952
    Abstract: Provided is a composition for forming a charge transporting film, including a solvent having a dielectric constant of 5.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: August 19, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yuko Iwadate, Katsumi Nukada, Wataru Yamada, Hidekazu Hirose, Tomoya Sasaki, Kenji Kajiwara
  • Patent number: 8714088
    Abstract: A lithographic printing plate precursor includes an image-recording layer and a protective layer containing a stratiform compound, wherein at least one of the image-recording layer and the protective layer contains a polymer containing as a repeating unit, a structural unit having an ammonium structure.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: May 6, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Toyohisa Oya, Kazuto Kunita, Katsumi Araki, Yu Iwai, Koji Sonokawa, Tomoya Sasaki
  • Publication number: 20140079435
    Abstract: Provided is a reactive compound represented by the following General Formula (I): wherein in General Formula (I), F represents a charge transporting skeleton, D represents a group represented by the following General Formula (III), and m represents an integer of from 1 to 8: wherein in General Formula (III), L1 represents a divalent linking group including one or more —C(?O)—O— groups.
    Type: Application
    Filed: November 21, 2013
    Publication date: March 20, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomoya SASAKI, Katsumi NUKADA, Wataru YAMADA, Takatsugu DOI, Yuko IWADATE, Kenji KAJIWARA
  • Publication number: 20140072341
    Abstract: A charge transporting film includes a cured film of a composition containing at least one selected from reactive compounds represented by the following Formula (I): wherein F represents a charge transporting skeleton, D represents a group represented by Formula (IIa), m represents an integer of from 1 to 8, E represents a group represented by Formula (IIb), L represents a (n+1)-valent linking group including two or more selected from the group consisting of an alkylene group, an alkenylene group, —C(?O)—, —N(R)—, —S—, —O—, and a trivalent or tetravalent group derived from alkane or alkene, R represents a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group, n represents an integer of from 1 to 3, R0 represents a halogen atom, an alkyl group, or an alkoxy group, and n0 represents an integer of from 0 to 3.
    Type: Application
    Filed: April 11, 2013
    Publication date: March 13, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomoya SASAKI, Katsumi NUKADA, Wataru YAMADA, Hidekazu HIROSE, Kenji KAJIWARA, Yuko IWADATE
  • Publication number: 20140072906
    Abstract: Provided is an electrophotographic photoreceptor including a conductive substrate; a charge generating layer provided on the conductive substrate; a charge transporting layer provided on the charge generating layer; and an outermost surface layer provided on the charge transporting layer, wherein the charge transporting layer includes a charge transporting material and a polycarbonate copolymer having a solubility parameter as calculated by a Feders method of from 11.40 to 11.75, and the outermost surface layer includes a charge transporting material, fluorine-containing resin particles, and a fluorine-containing dispersant.
    Type: Application
    Filed: April 22, 2013
    Publication date: March 13, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yuko IWADATE, Katsumi NUKADA, Wataru YAMADA, Hidekazu HIROSE, Tomoya SASAKI, Kenji KAJIWARA
  • Publication number: 20140072907
    Abstract: Provided is an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an outermost surface layer includes a cured film of a composition containing inorganic particles having polymerizable groups and at least one selected from the reactive compounds represented by the following formulae (I) and (II): wherein F represents a charge transporting skeleton; L represents a divalent linking group; and m represents an integer of 1 to 8, wherein F represents a charge transporting skeleton; L? represents an (n+1)-valent linking group; m? represents an integer of 1 to 6; and n represents an integer of 2 to 3.
    Type: Application
    Filed: April 24, 2013
    Publication date: March 13, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomoya SASAKI, Katsumi NUKADA, Wataru YAMADA, Hidekazu HIROSE, Yuko IWADATE, Kenji KAJIWARA
  • Patent number: 8669029
    Abstract: Provided is a reactive compound represented by the following General Formula (I): wherein in General Formula (I), F represents a charge transporting skeleton, D represents a group represented by the following General Formula (III), and m represents an integer of from 1 to 8: wherein in General Formula (III), L1 represents a divalent linking group including one or more —C(?O)—O— groups.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 11, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomoya Sasaki, Katsumi Nukada, Wataru Yamada, Takatsugu Doi, Yuko Iwadate, Kenji Kajiwara
  • Patent number: 8663883
    Abstract: A charge-transporting film includes a polymer of a compound represented by Formula (I): (Ra)n-Fa-Xa-Fa?-(Ra?)n???(I) wherein Fa and Fa? independently represent a charge-transporting sub-unit including an aromatic ring, Ra and Ra? independently represent a —CH?CH2 directly bonded to the aromatic ring of the charge-transporting sub-unit or a group represented by Formula (a), Xa represents an alkylene group or a bivalent group in which an alkylene group and a group selected from —O—, —S—, and ester are combined, n and n? independently represent an integer of 0 or more (wherein n and n? are not simultaneously 0), and L represents a linking group which is represented by *—(CH2)n?—O—CH2— and which is bonded to the aromatic ring of the charge-transporting sub-unit, wherein n? is 1 or 2 and the linking group is bonded to the aromatic, ring of the charge-transporting sub-unit with *.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 4, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Wataru Yamada, Katsumi Nukada, Takatsugu Doi, Yuko Iwadate, Tomoya Sasaki
  • Publication number: 20130344422
    Abstract: An electrophotographic photoreceptor includes a conductive substrate, an organic photosensitive layer that is provided on the conductive substrate, and an inorganic protective layer that is provided on the organic photosensitive layer, wherein the inorganic protective layer includes a first layer, a second layer, and a third layer in this order from the organic photosensitive layer side and satisfies the relationship of the following expression (1): ?3??1<?2??Expression (1): wherein ?1 represents a volume resistivity (?·cm) of the first layer, ?2 represents a volume resistivity (?·cm) of the second layer, and ?3 represents a volume resistivity (?·cm) of the third layer.
    Type: Application
    Filed: April 3, 2013
    Publication date: December 26, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takeshi IWANAGA, Masaki HIRAKATA, Hideya KATSUHARA, Tomoya SASAKI, Nobuyuki TORIGOE, Takashi IMAI
  • Publication number: 20130260295
    Abstract: Provided is a composition for forming a charge transporting film, including a solvent having a dielectric constant of 5.
    Type: Application
    Filed: September 11, 2012
    Publication date: October 3, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yuko IWADATE, Katsumi NUKADA, Wataru YAMADA, Hidekazu HIROSE, Tomoya SASAKI, Kenji KAJIWARA
  • Publication number: 20130052573
    Abstract: Provided is a reactive compound represented by the following General Formula (I): wherein in General Formula (I), F represents a charge transporting skeleton, D represents a group represented by the following General Formula (III), and m represents an integer of from 1 to 8: wherein in General Formula (III), L1 represents a divalent linking group including one or more —C(?O)—O— groups.
    Type: Application
    Filed: March 26, 2012
    Publication date: February 28, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomoya SASAKI, Katsumi NUKADA, Wataru YAMADA, Takatsugu DOI, Yuko IWADATE, Kenji KAJIWARA
  • Publication number: 20130052571
    Abstract: Provided is a compound represented by the following General Formula (I): wherein in General Formula (I), F represents a charge transporting subunit, L represents a linking group having a valency of (n+1) that is formed by combining two or more kinds selected from a group consisting of an alkylene group, —C?C— (an alkenylene group), —C(?O)—, —N(R)—, —O—, and —S—, and R represents a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group, m represents an integer of from 1 to 6, and n represents an integer of from 2 to 3.
    Type: Application
    Filed: February 16, 2012
    Publication date: February 28, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Wataru YAMADA, Katsumi NUKADA, Yuko IWADATE, Tomoya SASAKI, Kenji KAJIWARA
  • Publication number: 20130052572
    Abstract: Provided is a compound represented by the following Formula (I): wherein in Formula (I), F represents a charge transporting skeleton, L represents a divalent linking group including a —(CH2)n—O— group, m represents an integer of from 1 to 8, and n represents an integer of from 3 to 6.
    Type: Application
    Filed: March 5, 2012
    Publication date: February 28, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Katsumi NUKADA, Wataru YAMADA, Tomoya SASAKI, Yuko IWADATE, Kenji KAJIWARA
  • Publication number: 20130052570
    Abstract: A charge-transporting film includes a polymer of a compound represented by Formula (I): (Ra)n-Fa-Xa-Fa?-(Ra?)n???(I) wherein Fa and Fa? independently represent a charge-transporting sub-unit including an aromatic ring, Ra and Ra? independently represent a —CH?CH2 directly bonded to the aromatic ring of the charge-transporting sub-unit or a group represented by Formula (a), Xa represents an alkylene group or a bivalent group in which an alkylene group and a group selected from —O—, —S—, and ester are combined, n and n? independently represent an integer of 0 or more (wherein n and n? are not simultaneously 0), and L represents a linking group which is represented by *—(CH2)n?—O—CH2— and which is bonded to the aromatic ring of the charge-transporting sub-unit, wherein n? is 1 or 2 and the linking group is bonded to the aromatic, ring of the charge-transporting sub-unit with *.
    Type: Application
    Filed: February 8, 2012
    Publication date: February 28, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Wataru YAMADA, Katsumi NUKADA, Takatsugu DOI, Yuko IWADATE, Tomoya SASAKI
  • Patent number: 8304171
    Abstract: A plate making method of a lithographic printing plate precursor includes: exposing imagewise a lithographic printing plate precursor including a support and an image-forming layer and containing (A) a compound generating an acid with light or heat, (B) an aromatic hydrocarbon compound or heterocyclic compound substituted with a functional group containing a nitrogen atom and (C) an aromatic aldehyde protected with an acid-decomposable group; and removing an unexposed area of the image-forming layer of the lithographic printing plate precursor by supplying at least one of dampening water and ink on a cylinder of a printing machine.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: November 6, 2012
    Assignee: Fujifilm Corporation
    Inventor: Tomoya Sasaki
  • Patent number: 8293436
    Abstract: There are provided a compound represented by the following formula (I), a photopolymerizable composition containing (A) a photopolymerization initiator represented by the formula (I) and (B) a radical polymerizable monomer, a color filter produced by using the photopolymerizable composition, and a process for producing the color filter.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: October 23, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Tomoya Sasaki
  • Patent number: 8142982
    Abstract: A lithographic printing plate precursor capable of being subjected to on-press development by supplying at least one of printing ink and dampening water and including a support, an image-recording layer and optionally an undercoat layer between the support and the image-recording layer, wherein at least one of the undercoat layer and the image-recording layer contains at least one of a compound represented by the formula (1A) as defined herein and a compound including a structure represented by the formula (1B) as defined herein.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: March 27, 2012
    Assignee: Fujifilm Corporation
    Inventors: Toyohisa Oya, Ryuki Kakino, Tomoya Sasaki, Yu Iwai
  • Publication number: 20120037860
    Abstract: The present invention provides a dye-containing negative curable composition comprising at least two dyes (A), an oxime photopolymerization initiator (B) and a radical polymerizable monomer (C); or a dye-containing negative curable composition comprising at east two organic-solvent soluble dyes (A), an oxime photopolymerization initiator (B), a radical polymerizable monomer (C) and an organic solvent (D), wherein the moisture content of the composition is less than 1% by mass relative to the total amount of the composition.
    Type: Application
    Filed: September 23, 2011
    Publication date: February 16, 2012
    Applicant: FUJIFILM Corporation
    Inventors: Tomoya Sasaki, Toru Fujimori