Patents by Inventor Chikara Ishihara

Chikara Ishihara 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: 10858978
    Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOX catalyst has a rich air-fuel ratio and NOX occluded by the NOX catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set larger when an amount of reducing agent detected or estimated by a reducing agent amount detector is larger.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: December 8, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Goro Tsuboi, Takayuki Yamaguchi, Daishi Ikeda, Yoshiaki Tomita, Chikara Ishihara
  • Patent number: 10858976
    Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOx catalyst has a rich air-fuel ratio and NOx occluded by the NOx catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set larger when s flow amount of the exhaust gas detected or estimated by an exhaust-gas flow amount detector is larger.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: December 8, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Goro Tsuboi, Takayuki Yamaguchi, Daishi Ikeda, Yoshiaki Tomita, Chikara Ishihara
  • Patent number: 10858977
    Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOX catalyst has a rich air-fuel ratio and NOX occluded by the NOX catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set smaller when a temperature of the NOX catalyst detected or estimated by an NOX catalyst temperature detector is higher.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: December 8, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Goro Tsuboi, Takayuki Yamaguchi, Daishi Ikeda, Yoshiaki Tomita, Chikara Ishihara
  • Publication number: 20200376845
    Abstract: An inkjet recording apparatus includes a recording head, a wiper member, a cleaning liquid supply device, a cleaning liquid flow path, and a controller. The cleaning liquid flow path includes a vertical tubular member connected to the cleaning liquid supply device and extending upward, and a horizontal tubular member connected to an upper end of the vertical tubular member and extending in a horizontal direction. The controller extrudes a cleaning liquid in at least a part of the cleaning liquid flow path from a cleaning liquid supply port before control of a cleaning operation for wiping an ink ejection surface of the recording head, thereby performing control of an air bubble release operation of the cleaning liquid flow path.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 3, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Noriaki FURUKAWA, Takashi SOMETE, Chikara ISHIHARA, Hiroyuki UEDA, Hiroomi NAKATSUJI, Issei NAKANO, Aiichiro OTANA, Jun NAKANO, Yasutaka INUI, Takuma ARAKI
  • Publication number: 20200376834
    Abstract: An ink jet recording apparatus includes a recording head, a wiper member, a cleaning liquid supply device, and a controller. The recording head includes an ink ejection surface having an ink ejection port from which ink is ejected. The cleaning liquid supply device includes a cleaning liquid supply surface having a cleaning liquid supply port from which cleaning liquid for wiping the ink ejection surface with the wiper member is supplied, and is located upstream of the ink ejection surface in a wiping direction. The controller controls a cleaning operation including squeezing out the cleaning liquid containing bubbles from the cleaning liquid supply port, and moving the wiper member carrying the cleaning liquid containing bubbles, in the wiping direction from a movement start position to an end position ahead of the ink ejection surface.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Issei NAKANO, Takashi SOMETE, Chikara ISHIHARA, Hiroyuki UEDA, Hiroomi NAKATSUJI, Noriaki FURUKAWA, Aiichiro OTANA, Jun NAKANO, Yasutaka INUI, Takuma ARAKI
  • Publication number: 20200056526
    Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOX catalyst has a rich air-fuel ratio and NOX occluded by the NOX catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set smaller when a temperature of the NOX catalyst detected or estimated by an NOX catalyst temperature detector is higher.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 20, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Goro TSUBOI, Takayuki YAMAGUCHI, Daishi IKEDA, Yoshiaki TOMITA, Chikara ISHIHARA
  • Publication number: 20200056521
    Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOx catalyst has a rich air-fuel ratio and NOx occluded by the NOx catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set larger when s flow amount of the exhaust gas detected or estimated by an exhaust-gas flow amount detector is larger.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 20, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Goro TSUBOI, Takayuki YAMAGUCHI, Daishi IKEDA, Yoshiaki TOMITA, Chikara ISHIHARA
  • Publication number: 20200056527
    Abstract: An NH3 supply amount controller reduces and adjusts a supply amount of NH3 to an SCR catalyst by an NH3 supplier, when an exhaust gas flowing into an NOx catalyst has a rich air-fuel ratio and NOx occluded by the NOx catalyst is reduced to N2. A reduction amount of the supply amount of the NH3 controlled by the NH3 supply amount controller is set larger when an amount of reducing agent detected or estimated by a reducing agent amount detector is larger.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 20, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Goro TSUBOI, Takayuki YAMAGUCHI, Daishi IKEDA, Yoshiaki TOMITA, Chikara ISHIHARA
  • Publication number: 20190358957
    Abstract: A wiping device wipes off ink attached to an ink discharge surface of a recording head. The wiping device includes a wiper. The wiper wipes off ink attached to the ink discharge surface of the recording head. The wiper is formed of a material having elasticity. The wiper includes a blade pressed to the ink discharge surface. The blade has a shape easily deformed in a direction perpendicular to the ink discharge surface.
    Type: Application
    Filed: May 20, 2019
    Publication date: November 28, 2019
    Inventors: Takashi Somete, Noriaki Furukawa, Aiichiro Otana, Kenichi Satake, Takuma Araki, Yasutaka Inui, Chikara Ishihara, Yuzuru Yuasa
  • Patent number: 9298126
    Abstract: A developing device includes a housing, a development roller, and a roller gear. The roller gear is disposed at one axial end of the development roller and transmits a rotational drive force to the development roller. The development roller includes a sleeve and a coating layer. The coating layer is formed by dipping the sleeve in a dipping bath with the sleeve directed axially vertically. The development roller is mounted to the housing such that a lower axial end of the development roller at the time of the dipping is an opposite axial end to the one axial end at which the roller gear is disposed.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: March 29, 2016
    Assignee: KYOCERA Document Solution Inc.
    Inventors: Tamotsu Shimizu, Akihiro Watanabe, Chikara Ishihara, Yasuhiro Tauchi, Masashi Fujishima, Yu Sasaki, Hiroaki Sakai, Yasuhiro Oishi, Yukimasa Watanabe
  • Patent number: 9285713
    Abstract: A developing device supplies a developer to a photosensitive drum, which has a cylindrical shape, and is rotatable around an axis thereof for forming an electrostatic latent image on the circumferential surface thereof. The developing device is provided with a developing roller. The developing roller is disposed to face the photosensitive drum, and has a cylindrical shape. The developing roller is rotatable around an axis thereof for carrying a developer on the circumferential surface thereof. The developing roller is provided with a small diameter portion. The small diameter portion is a part of the circumferential surface of the developing roller. The small diameter portion extends from an axial end of the developing roller axially inward by a predetermined length, and has an outer diameter smaller than an axially middle portion of the developing roller.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: March 15, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Sakae Saito, Hiroaki Sakai, Yukimasa Watanabe, Yasuhiro Oishi, Masashi Fujishima, Chikara Ishihara, Yasuhiro Tauchi
  • Patent number: 9201349
    Abstract: Developing device includes developing roller and magnetic roller. Developing roller includes aluminum oxide thin film and resin coat layer. Magnetic roller is disposed to face, without contact, outer circumferential surface of developing roller, and includes aluminum oxide thin film formed on outer circumferential surface of base body that is made of metal including aluminum. Magnetic roller forms toner layer on surface of developing roller via magnetic brush composed of toner and magnetic carrier. AC impedance Z1 is in range from 1.0×105? to 1.0×106? and surface roughness Ra of resin coat layer is in range from 0.057 ?m to 0.280 ?m, AC impedance Z1 being obtained when AC voltage at predetermined frequency is applied to between base body of magnetic roller and base body of developing roller in a state where the magnetic brush is formed on magnetic roller.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: December 1, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Tamotsu Shimizu, Shizuka Okada, Yuji Kamiyama, Sakae Saito, Yasuhiro Oishi, Masashi Fujishima, Chikara Ishihara
  • Publication number: 20150301473
    Abstract: The present disclosure relates to a developing roller having a conductive support base, a surface of which is covered with a resin layer, wherein the resin layer contains conductive fine particles and soluble nylon serving as a binder resin, and the resin layer surface has a surface roughness Ra of at least 0.4 ?m, a waviness curve cycle of 50 to 400 ?m, and a waviness curve height of 2 to 10 ?m.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 22, 2015
    Inventors: Yukimasa Watanabe, Sakae Saito, Hiroaki Sakai, Yasuhiro Oishi, Masashi Fujishima, Chikara Ishihara, Yasuhiro Tauchi
  • Publication number: 20150293470
    Abstract: A developing device includes a housing, a development roller, and a roller gear. The roller gear is disposed at one axial end of the development roller and transmits a rotational drive force to the development roller. The development roller includes a sleeve and a coating layer. The coating layer is formed by dipping the sleeve in a dipping bath with the sleeve directed axially vertically. The development roller is mounted to the housing such that a lower axial end of the development roller at the time of the dipping is an opposite axial end to the one axial end at which the roller gear is disposed.
    Type: Application
    Filed: March 27, 2015
    Publication date: October 15, 2015
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Tamotsu SHIMIZU, Akihiro WATANABE, Chikara ISHIHARA, Yasuhiro TAUCHI, Masashi FUJISHIMA, Yu SASAKI, Hiroaki SAKAI, Yasuhiro OISHI, Yukimasa WATANABE
  • Publication number: 20150293477
    Abstract: A developing device supplies a developer to a photosensitive drum, which has a cylindrical shape, and is rotatable around an axis thereof for forming an electrostatic latent image on the circumferential surface thereof. The developing device is provided with a developing roller. The developing roller is disposed to face the photosensitive drum, and has a cylindrical shape. The developing roller is rotatable around an axis thereof for carrying a developer on the circumferential surface thereof. The developing roller is provided with a small diameter portion. The small diameter portion is a part of the circumferential surface of the developing roller. The small diameter portion extends from an axial end of the developing roller axially inward by a predetermined length, and has an outer diameter smaller than an axially middle portion of the developing roller.
    Type: Application
    Filed: April 7, 2015
    Publication date: October 15, 2015
    Inventors: Sakae Saito, Hiroaki Sakai, Yukimasa Watanabe, Yasuhiro Oishi, Masashi Fujishima, Chikara Ishihara, Yasuhiro Tauchi
  • Patent number: 9158227
    Abstract: The present disclosure relates to a developing roller having a conductive support base, a surface of which is covered with a resin layer, wherein the resin layer contains conductive fine particles and soluble nylon serving as a binder resin, and the resin layer surface has a surface roughness Ra of at least 0.4 ?m, a waviness curve cycle of 50 to 400 ?m, and a waviness curve height of 2 to 10 ?m.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 13, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yukimasa Watanabe, Sakae Saito, Hiroaki Sakai, Yasuhiro Oishi, Masashi Fujishima, Chikara Ishihara, Yasuhiro Tauchi
  • Patent number: 9122193
    Abstract: A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. A resin coat layer has been formed on an outer circumferential surface of the roller main body, the resin coat layer being made of a resin material having electric conductivity. A product of resistance component Rs [?] and electrostatic capacitance component Cs [F] in AC impedance Z of the roller main body is in a range from 2.79×10?7 to 6.77×10?5, the AC impedance Z being obtained when an AC voltage of a predetermined frequency f is applied.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: September 1, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yoshinobu Yoneima, Yuji Kamiyama, Akihiro Watanabe, Tamotsu Shimizu, Shizuka Okada, Sakae Saito, Yasuhiro Oishi, Chikara Ishihara, Masashi Fujishima, Yoshimi Shimizu, Yasuhiro Tauchi, Yu Sasaki
  • Publication number: 20150177642
    Abstract: A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. A resin coat layer has been formed on an outer circumferential surface of the roller main body, the resin coat layer being made of a resin material having electric conductivity. A product of resistance component Rs [?] and electrostatic capacitance component Cs [F] in AC impedance Z of the roller main body is in a range from 2.79×10?7 to 6.77×10?5, the AC impedance Z being obtained when an AC voltage of a predetermined frequency f is applied.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 25, 2015
    Inventors: Yoshinobu Yoneima, Yuji Kamiyama, Akihiro Watanabe, Tamotsu Shimizu, Shizuka Okada, Sakae Saito, Yasuhiro Oishi, Chikara Ishihara, Masashi Fujishima, Yoshimi Shimizu, Yasuhiro Tauchi, Yu Sasaki
  • Publication number: 20150177652
    Abstract: Developing device includes developing roller and magnetic roller. Developing roller includes aluminum oxide thin film and resin coat layer. Magnetic roller is disposed to face, without contact, outer circumferential surface of developing roller, and includes aluminum oxide thin film formed on outer circumferential surface of base body that is made of metal including aluminum. Magnetic roller forms toner layer on surface of developing roller via magnetic brush composed of toner and magnetic carrier. AC impedance Z1 is in range from 1.0×105? to 1.0×106? and surface roughness Ra of resin coat layer is in range from 0.057 ?m to 0.280 ?m, AC impedance Z1 being obtained when AC voltage at predetermined frequency is applied to between base body of magnetic roller and base body of developing roller in a state where the magnetic brush is formed on magnetic roller.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 25, 2015
    Inventors: Tamotsu Shimizu, Shizuka Okada, Yuji Kamiyama, Sakae Saito, Yasuhiro Oishi, Masashi Fujishima, Chikara Ishihara
  • Patent number: 8824906
    Abstract: In the case of a standard sized sheet, a first controller sets a linear velocity D of an image bearing member at a first velocity and sets a linear velocity S of a toner bearing member so that S/D, which is a ratio of the linear velocity S to the linear velocity D, has a first value and a second controller sets the thickness of the toner layer carried on the toner bearing member at a first layer thickness. In the case of a long sheet, the first controller sets the linear velocity D at a second velocity slower than the first velocity and sets the linear velocity S so that the S/D has a second value larger than the first value and the second controller sets the thickness of the toner layer at a second layer thickness smaller than the first layer thickness.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 2, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventors: Chikara Ishihara, Masashi Fujishima