Patents by Inventor Daisuke Nii

Daisuke Nii 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).

  • Patent number: 10785868
    Abstract: A multilayer printed wiring board includes a core substrate, a first buildup layer, and a second buildup layer. The first buildup layer includes a first insulating layer and a first conductor layer alternately laminated with each other. The second buildup layer includes a second insulating layer and a second conductor layer alternately laminated with each other. The core substrate, the first insulating layer, and the second insulating layer each include a glass cloth. The glass cloth is woven with warp threads and weft threads. The warp threads each have a width narrower a width of each of the weft threads. Each of the warp threads constituting the glass cloth in the first insulating layer and the second insulating layer both lying adjacent to the core substrate is arranged perpendicular to each of the warp threads constituting the glass cloth in the core substrate.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: September 22, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kenichi Toshimitsu, Daisuke Nii, Koichi Isaji, Hiroyuki Fujisawa, Yoshihiko Nakamura
  • Publication number: 20200092994
    Abstract: A multilayer printed wiring board includes a core substrate, a first buildup layer, and a second buildup layer. The first buildup layer includes a first insulating layer and a first conductor layer alternately laminated with each other. The second buildup layer includes a second insulating layer and a second conductor layer alternately laminated with each other. The core substrate, the first insulating layer, and the second insulating layer each include a glass cloth. The glass cloth is woven with warp threads and weft threads. The warp threads each have a width narrower a width of each of the weft threads. Each of the warp threads constituting the glass cloth in the first insulating layer and the second insulating layer both lying adjacent to the core substrate is arranged perpendicular to each of the warp threads constituting the glass cloth in the core substrate.
    Type: Application
    Filed: July 27, 2017
    Publication date: March 19, 2020
    Inventors: KENICHI TOSHIMITSU, DAISUKE NII, KOICHI ISAJI, HIROYUKI FUJISAWA, YOSHIHIKO NAKAMURA
  • Patent number: 10450405
    Abstract: A resin composition contains an epoxy resin, and a curing agent including a first acid anhydride and a second acid anhydride. An unsaturated bond concentration in the second acid anhydride is not higher than 0.7%. The unsaturated bond concentration is represented by following formula (1). The ratio of the number of acid anhydride equivalents of the first acid anhydride to the number of epoxy equivalents of the epoxy resin is between 0.05 and 0.5 (inclusive). The ratio of the total number of acid anhydride equivalents of the first acid anhydride and the second acid anhydride to the number of epoxy equivalents is between 0.5 and 1.1 (inclusive).
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: October 22, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Daisuke Nii, Hidetsugu Motobe, Toshiyuki Higashida
  • Patent number: 10301292
    Abstract: Provided is a bicyclic compound having an acetyl-CoA carboxylase inhibitory action. A compound represented by the formula: wherein each symbol is as described in the DESCRIPTION, or a salt thereof has an acetyl-CoA carboxylase inhibitory action, is useful for the prophylaxis or treatment of cancer, inflammatory diseases and the like, and has superior efficacy.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: May 28, 2019
    Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Ryo Mizojiri, Hiroshi Banno, Moriteru Asano, Daisuke Tomita, Noriyuki Nii, Hironobu Maezaki, Michiko Tawada
  • Patent number: 10209639
    Abstract: A photoconductor including a conductive support, an undercoat layer, a charge-generating layer, and a charge-transporting layer, at least the undercoat layer, the charge-generating layer, and the charge-transporting layer being disposed on the conductive support in an order mentioned, wherein the undercoat layer includes a binder resin and metal oxide particles, and the charge-generating layer includes a binder resin, a titanyl phthalocyanine pigment, and a salicylic acid derivative.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: February 19, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoharu Asano, Tetsuro Suzuki, Eiji Kurimoto, Daisuke Nii, Toshihiro Ishida
  • Patent number: 10191398
    Abstract: An electrophotographic photoconductor including a support, an undercoat layer, and a photoconductive layer, the undercoat layer and the photoconductive layer being disposed on the support in an order mentioned, wherein the undercoat layer includes zinc oxide particles, a urethane bond-containing resin, and methylethyl ketone oxime, and the undercoat layer satisfies a formula below: 10<M/L<400??(Formula) where M is a ratio (ppm) of the methylethyl ketone oxime included in the undercoat layer, and L is an average thickness (?m) of the undercoat layer.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: January 29, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshihiro Ishida, Tetsuro Suzuki, Eiji Kurimoto, Tomoharu Asano, Daisuke Nii
  • Patent number: 10061250
    Abstract: An image forming apparatus includes a photoconductor, a charger, an exposure device, a transfer device, a first and a second surface voltmeter, and a processor. At the first rotation of the photoconductor, the charger charges a charge area on the photoconductor, the exposure device exposes a part of an exposure area in an axial direction of the photoconductor, and the transfer device charges an exposed and unexposed area. At the second rotation, the charger charges the charge area, and the exposure device exposes the exposed and unexposed area at the first rotation. After the exposure at the second rotation, the first surface voltmeter measures a surface potential V1 of the unexposed area at the first rotation, and the second surface voltmeter measures a surface potential V2 of the exposed area at the first rotation. The processor evaluates a life of the photoconductor based on the surface potentials V1 and V2.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: August 28, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Daisuke Nii, Noriyasu Saito, Kazuhiro Egawa
  • Patent number: 10017601
    Abstract: A resin composition contains a preliminary reaction product obtained through mixing an epoxy resin and a monofunctional acid anhydride as a first curing agent in an equivalence ratio of the epoxy resin to the monofunctional acid anhydride in a range of 1:0.1 to 1:0.6, and reacting the epoxy resin and the monofunctional acid anhydride such that a percentage of ring opening of the monofunctional acid anhydride is 80% or more, and a second curing agent being a different compound from the monofunctional acid anhydride.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: July 10, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Daisuke Nii, Mitsuyoshi Nishino, Fuminori Sato, Yoshihiko Nakamura
  • Publication number: 20180150013
    Abstract: An image forming apparatus includes a photoconductor, a charger, an exposure device, a transfer device, a first and a second surface voltmeter, and a processor. At the first rotation of the photoconductor, the charger charges a charge area on the photoconductor, the exposure device exposes a part of an exposure area in an axial direction of the photoconductor, and the transfer device charges an exposed and unexposed area. At the second rotation, the charger charges the charge area, and the exposure device exposes the exposed and unexposed area at the first rotation. After the exposure at the second rotation, the first surface voltmeter measures a surface potential V1 of the unexposed area at the first rotation, and the second surface voltmeter measures a surface potential V2 of the exposed area at the first rotation. The processor evaluates a life of the photoconductor based on the surface potentials V1 and V2.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 31, 2018
    Inventors: Daisuke NII, Noriyasu SAITO, Kazuhiro EGAWA
  • Patent number: 9846377
    Abstract: A photoconductor includes an electroconductive substrate; an undercoat layer overlying the electroconductive substrate; and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a urethane resin, a metal oxide particle and a compound having the following formula (1): wherein R1 to R8 independently represent a hydrogen atom, a nitro group, a cyano group, a halogen atom, a hydroxyl group, a saturated or an unsaturated aliphatic hydrocarbon group optionally having a substituent, an aromatic hydrocarbon group optionally having a substituent, an alkoxy group optionally having a substituent, an aryloxy group optionally having a substituent, a sulfo group optionally having a substituent, an amino group, a dialkylamino group optionally having a substituent or an diarylamino group optionally having a substituent; and R3 and R4, R4 and R5, R6 and R7, and R7 and R8 may be bonded with each other to form an aromatic ring.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: December 19, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoharu Asano, Eiji Kurimoto, Tetsuro Suzuki, Daisuke Nii, Toshihiro Ishida
  • Publication number: 20170343910
    Abstract: An electrophotographic photoconductor including a support, an undercoat layer, and a photoconductive layer, the undercoat layer and the photoconductive layer being disposed on the support in an order mentioned, wherein the undercoat layer includes zinc oxide particles, a urethane bond-containing resin, and methylethyl ketone oxime, and the undercoat layer satisfies a formula below: 10<M/L<400??(Formula) where M is a ratio (ppm) of the methylethyl ketone oxime included in the undercoat layer, and L is an average thickness (?m) of the undercoat layer.
    Type: Application
    Filed: May 22, 2017
    Publication date: November 30, 2017
    Inventors: Toshihiro ISHIDA, Tetsuro Suzuki, Eiji Kurimoto, Tomoharu Asano, Daisuke Nii
  • Publication number: 20170307988
    Abstract: A photoconductor including a conductive support, an undercoat layer, a charge-generating layer, and a charge-transporting layer, at least the undercoat layer, the charge-generating layer, and the charge-transporting layer being disposed on the conductive support in an order mentioned, wherein the undercoat layer includes a binder resin and metal oxide particles, and the charge-generating layer includes a binder resin, a titanyl phthalocyanine pigment, and a salicylic acid derivative.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 26, 2017
    Inventors: Tomoharu ASANO, Tetsuro Suzuki, Eiji Kurimoto, Daisuke Nii, Toshihiro Ishida
  • Patent number: 9766562
    Abstract: A photoconductor including: a conductive support; an undercoat layer; and a photoconductive layer, the undercoat layer being disposed over the conductive support, the photoconductive layer being disposed over the undercoat layer, wherein the undercoat layer includes zinc oxide particles, wherein when a film thickness of the undercoat layer is 20 ?m, the undercoat layer has transmittance of 50% or more to light having a wavelength in a range of 500 nm or more but 800 nm or less, wherein a lowest transmittance of light is 85% or less in the range, and wherein when an electric field of 5 V/?m is applied to the undercoat layer, volume resistivity of the undercoat layer is 1.0×107 ?·cm or more but 5.0×108 ?·cm or less at an environment of 23° C. and 55% RH.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: September 19, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshihiro Ishida, Eiji Kurimoto, Tetsuro Suzuki, Tomoharu Asano, Daisuke Nii
  • Patent number: 9753384
    Abstract: Provided is a photoconductor including a conductive support, an intermediate layer containing metal oxide particles, and a photoconductive layer. The intermediate layer and the photoconductive layer are provided over the conductive support in the order of reciting. An elastic power (We/Wt value) of the intermediate layer is greater than or equal to 20.0% but less than 35.0%. A Martens hardness (HM) of the intermediate layer is greater than or equal to 350 [N/mm2] but less than 450 [N/mm2].
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: September 5, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Eiji Kurimoto, Tetsuro Suzuki, Tomoharu Asano, Daisuke Nii, Toshihiro Ishida
  • Publication number: 20170226276
    Abstract: A resin composition contains an epoxy resin, and a curing agent including a first acid anhydride and a second acid anhydride. An unsaturated bond concentration in the second acid anhydride is not higher than 0.7%. The unsaturated bond concentration is represented by following formula (1). The ratio of the number of acid anhydride equivalents of the first acid anhydride to the number of epoxy equivalents of the epoxy resin is between 0.05 and 0.5 (inclusive). The ratio of the total number of acid anhydride equivalents of the first acid anhydride and the second acid anhydride to the number of epoxy equivalents is between 0.5 and 1.1 (inclusive).
    Type: Application
    Filed: August 25, 2015
    Publication date: August 10, 2017
    Inventors: DAISUKE NII, HIDETSUGU MOTOBE, TOSHIYUKI HIGASHIDA
  • Patent number: 9681541
    Abstract: Resin composition of the present disclosure includes: an epoxy resin; and a hardener, in which the hardener contains a styrene-maleic anhydride copolymer (SMA) and an anhydride having only one anhydride group in a molecule. An acid value of the SMA is in a range from 300 to 550, inclusive. A ratio of an anhydride equivalent number of the anhydride with respect to an epoxy group equivalent number of the epoxy resin is in a range from 0.05 to 0.5, inclusive. A ratio of the total number of the equivalent numbers of the anhydride groups of the anhydride and the SMA with respect to the epoxy group equivalent number is a range from 0.5 to 1.2, inclusive.
    Type: Grant
    Filed: April 16, 2016
    Date of Patent: June 13, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshiyuki Higashida, Hidetsugu Motobe, Daisuke Nii
  • Patent number: 9678446
    Abstract: A electrophotographic photoconductor is provided. The electrophotographic photoconductor includes a conductive support, an undercoat layer overlying the conductive support, and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a metal oxide particle, binder resin, and a compound having a urea group.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 13, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshihiro Ishida, Eiji Kurimoto, Tetsuro Suzuki, Tomoharu Asano, Daisuke Nii
  • Patent number: 9671706
    Abstract: An electrophotographic photoconductor including a support, an undercoat layer overlying the support, and a photosensitive layer overlying the undercoat layer is provided. The undercoat layer includes zinc oxide particles and a binder resin. The undercoat layer has a voltage (V)-current (I) characteristics such that, when S1 is a value obtained by integrating current (I [A]) in terms of voltage (V [V]) from 0 to a distribution voltage VUL [V] distributed to the undercoat layer, and S2 is a value obtained by integrating a line connecting two points at a voltage (V [V]) of 0 and the distribution voltage VUL [V] in terms of voltage (V [V]) from 0 to the distribution voltage VUL [V], S1 is within a range of from 1.0×10?4 to 1.0×10?2 and a ratio (S1/S2) of S1 to S2 is 0.50 or less.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: June 6, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Daisuke Nii, Eiji Kurimoto, Tetsuro Suzuki, Tomoharu Asano, Toshihiro Ishida
  • Publication number: 20170153559
    Abstract: A photoconductor includes an electroconductive substrate; an undercoat layer overlying the electroconductive substrate; and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a urethane resin, a metal oxide particle and a compound having the following formula (1): wherein R1 to R8 independently represent a hydrogen atom, a nitro group, a cyano group, a halogen atom, a hydroxyl group, a saturated or an unsaturated aliphatic hydrocarbon group optionally having a substituent, an aromatic hydrocarbon group optionally having a substituent, an alkoxy group optionally having a substituent, an aryloxy group optionally having a substituent, a sulfo group optionally having a substituent, an amino group, a dialkylamino group optionally having a substituent or an diarylamino group optionally having a substituent; and R3 and R4, R4 and R5, R6 and R7, and R7 and R8 may be bonded with each other to form an aromatic ring.
    Type: Application
    Filed: October 21, 2016
    Publication date: June 1, 2017
    Inventors: Tomoharu ASANO, Eiji Kurimoto, Tetsuro Suzuki, Daisuke Nii, Toshihiro Ishida
  • Patent number: 9599916
    Abstract: An electrophotographic photoreceptor includes a substrate, an undercoat layer overlying the substrate, and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a binder resin, a metal oxide particle and a compound having a thiol group.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: March 21, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoharu Asano, Eiji Kurimoto, Tetsuro Suzuki, Daisuke Nii, Toshihiro Ishida