Patents by Inventor Hiroko Yamada

Hiroko Yamada 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: 20240085818
    Abstract: An image forming apparatus includes an electrophotographic photoreceptor that has a photosensitive layer constituting a surface of the electrophotographic photoreceptor, a charging device that charges the surface of the electrophotographic photoreceptor, an electrostatic charge image forming device that forms an electrostatic charge image on the charged surface of the electrophotographic photoreceptor, a developing device that accommodates a developer containing a toner which contains toner particles and an external additive, and develops the electrostatic charge image formed on the surface of the electrophotographic photoreceptor by the developer as a toner image, a transfer device that transfers the toner image formed on the surface of the electrophotographic photoreceptor to a surface of a recording medium, and a cleaning device that includes a cleaning blade coming into contact with the surface of the electrophotographic photoreceptor and cleaning at least residual toner particles on the surface of the el
    Type: Application
    Filed: January 16, 2023
    Publication date: March 14, 2024
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Yoshiteru YAMADA, Tomoya SASAKI, Ryosuke FUJII, Hiroko KOBAYASHI, Yuto OKAZAKI
  • Patent number: 11702438
    Abstract: A nanoribbon includes a structure represented by a structural formula (8), where g, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R1, R2, R3, R4, R5, R6, R7, and R8 are mutually independent and are one of a hydrogen atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or an aryl group.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: July 18, 2023
    Assignees: FUJITSU LIMITED, NATIONAL UNIVERSITY CORPORATION NARA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hideyuki Jippo, Manabu Ohtomo, Hironobu Hayashi, Hiroko Yamada
  • Publication number: 20220332743
    Abstract: A nanoribbon includes a structure represented by a structural formula (8), where g, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R1, R2, R3, R4, R5, R6, R7, and R8 are mutually independent and are one of a hydrogen atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or an aryl group.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 20, 2022
    Applicants: FUJITSU LIMITED, National University Corporation Nara Institute of Science and Technology
    Inventors: Hideyuki Jippo, Manabu Ohtomo, Hironobu Hayashi, Hiroko Yamada
  • Patent number: 11401291
    Abstract: A nanoribbon includes a structure represented by a structural formula (8), where g, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R1, R2, R3, R4, R5, R6, R7, and R8 are mutually independent and are one of a hydrogen atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or as aryl group.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: August 2, 2022
    Assignees: FUJITSU LIMITED, National University Corporation Nara Institute of Science and Technology
    Inventors: Hideyuki Jippo, Manabu Ohtomo, Hironobu Hayashi, Hiroko Yamada
  • Patent number: 10859502
    Abstract: A method, to perform glow discharge optical emission spectrometry using a glow discharge tube equipped with an electrode having an end section, for producing a sample containing object that is to be disposed so as to be opposed to the end section, comprises: covering one end of a sample holding section having a cylindrical shape and being open at both ends using a covering member; filling a powder sample containing a material to be analyzed into the sample holding section; compressing the powder sample by pressurizing the filled powder sample from the other end to the one end of the sample holding section; and removing the covering member from the sample holding section, thereby producing the sample containing object which includes the sample holding section and the compressed powder sample and from which the compressed powder sample is exposed from the one end.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: December 8, 2020
    Assignee: HORIBA, LTD.
    Inventors: Akira Fujimoto, Tatsuhito Nakamura, Hiroko Yamada
  • Publication number: 20200277319
    Abstract: A nanoribbon includes a structure represented by a structural formula (8), where q, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R1, R2, R3, R4, R5, R6, R7, and R8 are mutually independent and are one of a hydrogen. atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or as aryl group.
    Type: Application
    Filed: January 30, 2020
    Publication date: September 3, 2020
    Applicants: FUJITSU LIMITED, National University Corporation Nara Institute of Science and Technology
    Inventors: Hideyuki Jippo, Manabu Ohtomo, Hironobu Hayashi, Hiroko Yamada
  • Publication number: 20180266960
    Abstract: A method, to perform glow discharge optical emission spectrometry using a glow discharge tube equipped with an electrode having an end section, for producing a sample containing object that is to be disposed so as to be opposed to the end section, comprises: covering one end of a sample holding section having a cylindrical shape and being open at both ends using a covering member; filling a powder sample containing a material to be analyzed into the sample holding section; compressing the powder sample by pressurizing the filled powder sample from the other end to the one end of the sample holding section; and removing the covering member from the sample holding section, thereby producing the sample containing object which includes the sample holding section and the compressed powder sample and from which the compressed powder sample is exposed from the one end.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 20, 2018
    Inventors: Akira FUJIMOTO, Tatsuhito Nakamura, Hiroko Yamada
  • Patent number: 9929237
    Abstract: A GNR is a ribbon-shaped graphene film which includes: five or more (for example, five, seven, or nine) six-membered rings of carbon atoms which are bonded and arranged in line in a short side direction; and a complete armchair type edge structure along a long side direction. By such a constitution, without using a transfer method, there are materialized a highly reliable graphene film which has an armchair type edge structure with a uniform width at a desired value and which enables an electric current on-off ratio of 105 or more that is practically sufficient for exhibiting a desired band gap.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: March 27, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Junichi Yamaguchi, Shintaro Sato, Hiroko Yamada, Kazuki Tanaka
  • Patent number: 9895838
    Abstract: A resin mold for nanoimprinting has a substrate, a resin layer formed upon the substrate and having a depressions and protrusions pattern on a surface, an inorganic substance layer formed of uniform thickness on at least the surface having the depressions and protrusions pattern of the resin layer, and a mold release agent layer formed of uniform thickness on at least the surface having the depressions and protrusions pattern of the inorganic substance layer. The resin of the resin layer includes constituent units derived from an epoxy group-containing unsaturated compound at a concentration of 1 to 50 percent relative to total constituent units, and the epoxy value is 7.0×10?4 to 4.0×10?2.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: February 20, 2018
    Assignee: Soken Chemical & Engineering Co., Ltd.
    Inventors: Hiroko Yamada, Takahide Mizawa
  • Publication number: 20170252962
    Abstract: A resin mold for nanoimprinting has a substrate, a resin layer formed upon the substrate and having a depressions and protrusions pattern on a surface, an inorganic substance layer formed of uniform thickness on at least the surface having the depressions and protrusions pattern of the resin layer, and a mold release agent layer formed of uniform thickness on at least the surface having the depressions and protrusions pattern of the inorganic substance layer. The resin of the resin layer includes constituent units derived from an epoxy group-containing unsaturated compound at a concentration of 1 to 50 percent relative to total constituent units, and the epoxy value is 7.0×10?4 to 4.0×10?2.
    Type: Application
    Filed: May 17, 2017
    Publication date: September 7, 2017
    Inventors: Hiroko Yamada, Takahide Mizawa
  • Patent number: 9713900
    Abstract: A resin mold for nanoimprinting has a substrate, a resin layer formed upon the substrate and having a depressions and protrusions pattern on a surface, an inorganic substance layer formed of uniform thickness on at least the surface having the depressions and protrusions pattern of the resin layer, and a mold release agent layer formed of uniform thickness on at least the surface having the depressions and protrusions pattern of the inorganic substance layer. The resin of the resin layer includes constituent units derived from an epoxy group-containing unsaturated compound at a concentration of 1 to 50 percent relative to total constituent units, and the epoxy value is 7.0×10?4 to 4.0×10?2.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: July 25, 2017
    Assignee: Soken Chemical & Engineering Co., Ltd.
    Inventors: Hiroko Yamada, Takahide Mizawa
  • Publication number: 20160056240
    Abstract: A GNR is a ribbon-shaped graphene film which includes: five or more (for example, five, seven, or nine) six-membered rings of carbon atoms which are bonded and arranged in line in a short side direction; and a complete armchair type edge structure along a long side direction. By such a constitution, without using a transfer method, there are materialized a highly reliable graphene film which has an armchair type edge structure with a uniform width at a desired value and which enables an electric current on-off ratio of 105 or more that is practically sufficient for exhibiting a desired band gap.
    Type: Application
    Filed: October 27, 2015
    Publication date: February 25, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Junichi YAMAGUCHI, Shintaro SATO, Hiroko YAMADA, Kazuki TANAKA
  • Publication number: 20150240015
    Abstract: Provided is a photocurable resin composition for producing an imprinting mold which has superior releasability from a transfer target resin and is flexible. The photocurable resin composition does not undergo curing shrinkage when subjected to photo-imprinting as a transfer target of photo-imprinting; and is capable of producing by photo-imprinting an imprinting mold which has high surface hardness and in which the occurrence of yellowing is suppressed even when irradiated with e.g., ultraviolet ray. The photocurable resin composition for imprinting includes a (meth)acrylic monomer (A), a silicon-containing monomer (B) and a photoinitiator (C), wherein the photoinitiator includes a combination of an alkylphenone-based photoinitiator (C1) and an acylphosphine oxide-based photoinitiator (C2).
    Type: Application
    Filed: October 15, 2013
    Publication date: August 27, 2015
    Applicant: SOKEN CHEMICAL & ENGINEERING CO., LTD.
    Inventors: Hiroko Yamada, Yasuo Suto
  • Publication number: 20150147533
    Abstract: Provided is a photocurable resin composition in which curing shrinkage in photo-imprinting is suppressed, and capable of producing by photo-imprinting a structure which has high surface hardness and in which the occurrence of yellowing is suppressed even when irradiated with e.g., ultraviolet ray. The photocurable resin composition includes a (meth)acrylic monomer (A) and a photoinitiator (B), wherein the photoinitiator (B) has a combination of an alkylphenone-based photoinitiator (B1) and an acylphosphine oxide-based photoinitiator (B2), wherein a blending weight ratio (B1:B2) of the alkylphenone-based photoinitiator (B1) to the acylphosphine oxide-based photoinitiator (B2) is in the range of 1:99 to 90:10.
    Type: Application
    Filed: May 15, 2013
    Publication date: May 28, 2015
    Applicant: Soken Chemical & Engineering Co., Ltd.
    Inventors: Hiroko Yamada, Yasuo Suto, Yukihiro Miyazawa
  • Publication number: 20140196845
    Abstract: A bonding method of a resin mold is disclosed comprising a step of butting the end parts of resin molds that is provided with a formed reversal pattern of a fine concave convex pattern that is desired to each other for bonding the resin molds, wherein a detachable resin is filled in a gap of the butted part between the end parts of the resin mold and the end parts of the resin molds are bonded to each other in an integrated manner by the hardening of the detachable resin. Also included is a roll-to-roll continuous mold composition produced thereby.
    Type: Application
    Filed: July 31, 2012
    Publication date: July 17, 2014
    Applicant: SOKEN CHEMICAL & ENGINEERING CO., LTD.
    Inventors: Hiroko Yamada, Takanori Takahashi, Yasuo Suto
  • Publication number: 20140099474
    Abstract: A nanoimprint mold for a curved surface is provided and includes a silicone rubber elastic body having an Hs rubber hardness, in the case of a thickness of 250 ?m, of 10 to 55 and includes fine depressions and protrusions formed on the surface. According to the nanoimprint mold for a curved surface, a nanoimprint can be formed even on a curved surface.
    Type: Application
    Filed: May 15, 2012
    Publication date: April 10, 2014
    Applicant: SOKEN CHEMICAL & ENGINEERING CO., LTD.
    Inventors: Takanori Takahashi, Hiroko Yamada, Takahide Mizawa, Ryota Kojima
  • Publication number: 20130127090
    Abstract: A resin mold for nanoimprinting of the has a substrate, a resin layer formed upon the substrate and having a depressions and protrusions pattern on a surface, an inorganic substance layer formed of uniform thickness on at least the surface having the depressions and protrusions pattern of the resin layer, and a mold release agent layer formed of uniform thickness on at least the surface having the depressions and protrusions pattern of the inorganic substance layer. The resin of the resin layer includes constituent units derived from an epoxy group-containing unsaturated compound at a concentration of 1 to 50 percent relative to total constituent units, and the epoxy value is 7.0×10?4 to 4.0×10?2.
    Type: Application
    Filed: August 3, 2011
    Publication date: May 23, 2013
    Applicant: SOKEN CHEMICAL & ENGINEERING CO., LTD.
    Inventors: Hiroko Yamada, Takahide Mizawa
  • Patent number: 8089599
    Abstract: An electro-optical device includes a short-circuit wire provided in a peripheral area surrounding a pixel area in which pixel electrodes are provided. The short-circuit wire includes a main portion that short-circuits scanning lines with each other and an extending portion that extends from the main portion in such a manner as to intersect data lines. A wire supplied with a predetermined potential in the peripheral area is electrically connected to the extending portion.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: January 3, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Hiroko Yamada
  • Publication number: 20090195722
    Abstract: An electro-optical device includes a short-circuit wire provided in a peripheral area surrounding a pixel area in which pixel electrodes are provided. The short-circuit wire includes a main portion that short-circuits scanning lines with each other and an extending portion that extends from the main portion in such a manner as to intersect data lines. A wire supplied with a predetermined potential in the peripheral area is electrically connected to the extending portion.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 6, 2009
    Applicant: Seiko Epson Corporation
    Inventor: Hiroko YAMADA
  • Patent number: 6628360
    Abstract: A liquid crystal display device includes a first substrate having at least one first electrode formed thereon, and a second substrate having a plurality of second electrodes formed thereon and opposed to the first electrode, a matrix display section being formed which has a plurality of pixel electrodes constituted of the first and second electrodes and arranged in a matrix of rows and columns. The second substrate is opposed to the first substrate with a predetermined gap therebetween. First and second alignment films respectively are formed on the opposed inner surfaces of the first and second substrates. A liquid crystal is sealed between the first and second substrates. An aligning treatment is executed on the first alignment film in a first direction that intersects, at an angle of 5° to 10°, one of a row direction and a column direction of the matrix display section.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: September 30, 2003
    Assignee: Casio Computer Co., Ltd.
    Inventors: Hiroko Yamada, Seiichi Kizaki