Patents by Inventor Akihiro Iizuka

Akihiro Iizuka 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: 10001696
    Abstract: An imaging apparatus includes a pan housing that is supported so as to be pan-rotatable about a pan-axis, a supporting arm of which a base end is supported by one end of the pan housing so as to be rotatable about a first tilt-axis which is spaced away from and perpendicular to the pan-axis, and a tilt housing which accommodates a camera, and of which one end side opposing the supporting arm is supported by a tip of the supporting arm so as to be rotatable about a second tilt-axis which extends in the same direction as the first tilt-axis extends.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: June 19, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jyouji Wada, Yoshihito Urashima, Shinichiro Okamura, Akihiro Iizuka, Kouji Abe, Hideaki Yamada, Takashi Saitou, Hirofumi Sugi
  • Patent number: 9804387
    Abstract: An imaging apparatus includes a camera front light-transmission plate that covers a front surface of a camera, an auxiliary device addition space which has a virtual surface obtained by an exterior surface of the camera front light-transmission plate being extended, and in which an auxiliary imaging device is provided, and a wiper that wipes the exterior surface of the camera front light-transmission plate by moving along the exterior surface and that moves to the virtual surface.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: October 31, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jyouji Wada, Yoshihito Urashima, Akihiro Iizuka, Hideaki Yamada
  • Publication number: 20170115480
    Abstract: An imaging apparatus includes a camera front light-transmission plate that covers a front surface of a camera, an auxiliary device addition space which has a virtual surface obtained by an exterior surface of the camera front light-transmission plate being extended, and in which an auxiliary imaging device is provided, and a wiper that wipes the exterior surface of the camera front light-transmission plate by moving along the exterior surface and that moves to the virtual surface.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 27, 2017
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jyouji WADA, Yoshihito URASHIMA, Akihiro IIZUKA, Hideaki YAMADA
  • Publication number: 20170115549
    Abstract: An imaging apparatus includes a pan housing that is supported so as to be pan-rotatable about a pan-axis, a supporting arm of which a base end is supported by one end of the pan housing so as to be rotatable about a first tilt-axis which is spaced away from and perpendicular to the pan-axis, and a tilt housing which accommodates a camera, and of which one end side opposing the supporting arm is supported by a tip of the supporting arm so as to be rotatable about a second tilt-axis which extends in the same direction as the first tilt-axis extends.
    Type: Application
    Filed: October 18, 2016
    Publication date: April 27, 2017
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jyouji WADA, Yoshihito URASHIMA, Shinichiro OKAMURA, Akihiro IIZUKA, Kouji ABE, Hideaki YAMADA, Takashi SAITOU, Hirofumi SUGI
  • Patent number: 9535362
    Abstract: A carrier set for electrostatic charge image developer, includes: a first carrier that satisfies Expression (1); 160 mJ?x?200 mJ, and a second carrier that satisfies Expression (2); 210 mJ?y?250 mJ, wherein x is a total energy amount, which is measured by a powder rheometer, of a developer which is prepared by mixing the first carrier and a toner for measurement such that a weight ratio of the toner is 8% by weight based on the developer, and y is a total energy amount, which is measured by the powder rheometer, of a developer which is prepared by mixing the second carrier and the toner for measurement such that a weight ratio of the toner is 8% by weight based on the developer.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: January 3, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Soutaro Kakehi, Moegi Iguchi, Sakon Takahashi, Akihiro Iizuka
  • Publication number: 20160282753
    Abstract: A carrier set for electrostatic charge image developer, includes: a first carrier that satisfies Expression (1); 160 mJ?x?200 mJ, and a second carrier that satisfies Expression (2); 210 mJ?y?250 mJ, wherein x is a total energy amount, which is measured by a powder rheometer, of a developer which is prepared by mixing the first carrier and a toner for measurement such that a weight ratio of the toner is 8% by weight based on the developer, and y is a total energy amount, which is measured by the powder rheometer, of a developer which is prepared by mixing the second carrier and the toner for measurement such that a weight ratio of the toner is 8% by weight based on the developer.
    Type: Application
    Filed: July 22, 2015
    Publication date: September 29, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Soutaro KAKEHI, Moegi IGUCHI, Sakon TAKAHASHI, Akihiro IIZUKA
  • Patent number: 9213282
    Abstract: A fixing device includes a fixing rotary body that heats and pressurizes, together with a recording medium, toner having particle diameter of 4.5 [?m] or less and a softening point of 100 [° C.] or higher and 125 [° C.] or lower to fix the toner on the recording medium, a heating unit that heats the fixing rotary body, and a pressurizing unit that sandwiches and pressurizes the toner and the recording medium in a contact part formed by the fixing rotary body, wherein the maximum pressure in the contact part is equal to or more than 2.9×105 [Pa], the width of the contact part in a movement direction of the recording medium is equal to or more than 10 [mm], and the heating time of the toner in the contact part is equal to or more than 20 [msec].
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: December 15, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasuto Okabayashi, Masataka Konishi, Atsumi Kurita, Akihiro Iizuka
  • Patent number: 9207551
    Abstract: A brilliant toner includes flake shape toner particles containing a binder resin and a flake shape metallic pigment. The brilliant toner further includes tabular particles containing a Ti element.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: December 8, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Motoko Sakai, Akihiro Iizuka, Mona Tasaki
  • Publication number: 20150268570
    Abstract: A brilliant toner includes flake shape toner particles containing a binder resin and a flake shape metallic pigment. The brilliant toner further includes tabular particles containing a Ti element.
    Type: Application
    Filed: August 19, 2014
    Publication date: September 24, 2015
    Inventors: Motoko SAKAI, Akihiro IIZUKA, Mona TASAKI
  • Patent number: 8942587
    Abstract: An electrostatic image developer includes a toner containing an external additive having a volume-average particle size of about 80 to 400 nm and an average circularity of about 0.7 to 0.85. The developer is used in an image forming apparatus including an image-carrying member having a top surface layer containing fluorocarbon resin particles, and a developer-carrying member that faces the image-carrying member and carries an electrostatic image developer, in which a value obtained by dividing the amount of developer on the developer-carrying member [g/m2] by a shortest distance between the image-carrying member and the developer-carrying member [?m] is about 0.8 to 1.8, and a peripheral velocity ratio of the developer-carrying member to the image-carrying member is about 1.5 to 5.0 or the developer-carrying member moves in a direction opposite to the image-carrying member in a facing portion.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: January 27, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Sakon Takahashi, Akihiro Iizuka, Motoko Sakai, Kunihiko Sato, Kazuhiko Arai, Nobumasa Furuya, Masaaki Takahashi, Daisuke Haruyama, Koji Nishimura
  • Publication number: 20140178100
    Abstract: An electrostatic image developer includes a toner containing an external additive having a volume-average particle size of about 80 to 400 nm and an average circularity of about 0.7 to 0.85. The developer is used in an image forming apparatus including an image-carrying member having a top surface layer containing fluorocarbon resin particles, and a developer-carrying member that faces the image-carrying member and carries an electrostatic image developer, in which a value obtained by dividing the amount of developer on the developer-carrying member [g/m2] by a shortest distance between the image-carrying member and the developer-carrying member [?m] is about 0.8 to 1.8, and a peripheral velocity ratio of the developer-carrying member to the image-carrying member is about 1.5 to 5.0 or the developer-carrying member moves in a direction opposite to the image-carrying member in a facing portion.
    Type: Application
    Filed: June 7, 2013
    Publication date: June 26, 2014
    Inventors: Sakon TAKAHASHI, Akihiro IIZUKA, Motoko SAKAI, Kunihiko SATO, Kazuhiko ARAI, Nobumasa FURUYA, Masaaki TAKAHASHI, Daisuke HARUYAMA, Koji NISHIMURA
  • Patent number: 8685603
    Abstract: An electrostatic charge image developer includes a toner containing an external additive and a carrier comprising a resin-coated layer formed on a surface of a core material. The average shape factor SF1 of the toner is from 125 to 135, the number of particles having shape factor SF1 of less than 125 is from 5% to 30% by number with respect to the total number of toner particles, the number of particles having shape factor SF1 of greater than 135 is from 5% to 30% by number with respect to the total number of toner particles, the scratch line width in a scratch strength test of the resin used in the resin-coated layer is from 80 ?m to 200 ?m, and the scratch depth is from 60 ?m to 150 ?m.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: April 1, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Fusako Kiyono, Taichi Yamada, Yosuke Tsurumi, Akira Matsumoto, Akihiro Iizuka
  • Publication number: 20140064803
    Abstract: A fixing device includes a fixing rotary body that heats and pressurizes, together with a recording medium, toner having particle diameter of 4.5 [?m] or less and a softening point of 100 [° C.] or higher and 125 [° C.] or lower to fix the toner on the recording medium, a heating unit that heats the fixing rotary body, and a pressurizing unit that sandwiches and pressurizes the toner and the recording medium in a contact part formed by the fixing rotary body, wherein the maximum pressure in the contact part is equal to or more than 2.9×105 [Pa], the width of the contact part in a movement direction of the recording medium is equal to or more than 10 [mm], and the heating time of the toner in the contact part is equal to or more than 20 [msec].
    Type: Application
    Filed: March 26, 2013
    Publication date: March 6, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yasuto OKABAYASHI, Masataka KONISHI, Atsumi KURITA, Akihiro IIZUKA
  • Patent number: 8603716
    Abstract: An electrostatic image developing carrier includes a ferrite particle and a resin layer that coats the ferrite particle, wherein a magnesium element content of the ferrite particle is from about 3.0% by weight to about 20.0% by weight; wherein a manganese element content of the ferrite particle is from about 0.2% by weight to about 0.8% by weight; and wherein a content of toluene is more than about 100 ppm and not more than about 2,000 ppm.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: December 10, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takeshi Shoji, Akihiro Iizuka, Yosuke Tsurumi, Fusako Kiyono
  • Patent number: 8586276
    Abstract: A carrier for developing an electrostatic latent image includes carrier particles, and the carrier particles include magnetic particles and a coating layer coating the surfaces of the magnetic particles. The BET specific surface area of the magnetic particles is 0.1300 m2/g to 0.2500 m2/g, and the difference in BET specific surface areas obtained by subtracting the BET specific surface area of the magnetic particles from the BET specific surface area of the carrier particles is 0.0300 m2/g to 0.400 m2/g.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: November 19, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Matsumoto, Taichi Yamada, Yosuke Tsurumi, Fusako Kiyono, Akihiro Iizuka, Fumiaki Mera, Hirotaka Matsuoka
  • Patent number: 8512927
    Abstract: An electrostatic image developing carrier including at least a core material and a coating resin layer which coats the surface of the core material, the resin layer comprising a thermoplastic resin having an alicyclic group, a thermal reduction in accordance with the TGA method being in the range of 0.5 weight % to 5 weight % of the whole of the carrier in the range of 100° C. to 400° C., and further an endothermic quantity of the whole of the carrier in accordance with the DTA method is in the range of 7 mJ/g to 40 mJ/g in the range of 100° C. to 400° C.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: August 20, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akihiro Iizuka, Fusako Kiyono, Tsuyoshi Murakami
  • Patent number: 8486600
    Abstract: A carrier for developing an electrostatic charge image, including a core, and a coating layer including a resin and inorganic oxide particles that exhibit electroconductivity, by which the core is coated, wherein the inorganic oxide particles have, when they are aggregated, an aggregation size of, or when they are not aggregated, a primary particle size of, from 230 nm to 970 nm.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: July 16, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Norihito Fukushima, Akihiro Iizuka, Yosuke Tsurumi, Takahiro Yamashita, Shintaro Anno, Yasuaki Hashimoto
  • Patent number: 8389192
    Abstract: An electrophotographic carrier includes a magnetic core material and a resin layer that coats the magnetic core material, the resin layer comprising a resistance control agent and a polymer including a repeating unit derived from an alicyclic group-containing methacrylic ester, the resin layer including a monomer as a base material of the repeating unit in the polymer in an amount of from about 0.5% by weight to about 3.0% by weight relative to the total amount of the resin layer.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: March 5, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Fusako Kiyono, Takeshi Shoji, Yosuke Tsurumi, Akihiro Iizuka
  • Publication number: 20110236814
    Abstract: A carrier for developing an electrostatic charge image, including a core, and a coating layer including a resin and inorganic oxide particles that exhibit electroconductivity, by which the core is coated, wherein the inorganic oxide particles have, when they are aggregated, an aggregation size of or when they are not aggregated, a primary particle size of, from 230 nm to 970 nm.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 29, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Norihito FUKUSHIMA, Akihiro IIZUKA, Yosuke TSURUMI, Takahiro YAMASHITA, Shintaro ANNO, Yasuaki HASHIMOTO
  • Patent number: D993306
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: July 25, 2023
    Assignee: I-PRO CO., LTD.
    Inventors: Jyouji Wada, Hideaki Yamada, Akihiro Iizuka