Patents by Inventor Hideo Kikuchi

Hideo Kikuchi 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: 20220253001
    Abstract: A powder container contains powder and is attached to an image forming apparatus including: a conveying nozzle to convey the powder; a powder receiving hole of the conveying nozzle to receive the powder from the powder container; an apparatus main-body gear to transmit a driving force to the powder container; and a container receiving section including the conveying nozzle and receiving the powder container. The powder container includes: an opening at one end of the powder container in a longitudinal direction; a nozzle receiver at the opening to receive the conveying nozzle; a conveyor to convey the powder; and a container gear to drive the conveyor by meshing with the apparatus main-body gear. The container gear is to mesh with the apparatus main-body gear at a position closer to the opening than the powder receiving hole in the longitudinal direction. The opening is to mate with the container receiving section.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Kenji KIKUCHI, Shinji TAMAKI, Hiroshi HOSOKAWA, Shunji KATOH, Michiharu SUZUKI, Hideo YOSHIZAWA, Shingo KUBOKI
  • Patent number: 11372347
    Abstract: A powder container contains powder and is attached to an image forming apparatus including: a conveying nozzle to convey the powder; a powder receiving hole of the conveying nozzle to receive the powder from the powder container; an apparatus main-body gear to transmit a driving force to the powder container; and a container receiving section including the conveying nozzle and receiving the powder container. The powder container includes: an opening at one end of the powder container in a longitudinal direction; a nozzle receiver at the opening to receive the conveying nozzle; a conveyor to convey the powder; and a container gear to drive the conveyor by meshing with the apparatus main-body gear. The container gear is to mesh with the apparatus main-body gear at a position closer to the opening than the powder receiving hole in the longitudinal direction. The opening is to mate with the container receiving section.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: June 28, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kenji Kikuchi, Shinji Tamaki, Hiroshi Hosokawa, Shunji Katoh, Michiharu Suzuki, Hideo Yoshizawa, Shingo Kuboki
  • Patent number: 10491045
    Abstract: The present invention increases received electrical power received by a power receiving coil by stably increasing a resonance current in the power receiving coil of a wireless power transmission system.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 26, 2019
    Inventor: Hideo Kikuchi
  • Publication number: 20180331576
    Abstract: The present invention increases received electrical power received by a power receiving coil by stably increasing a resonance current in the power receiving coil of a wireless power transmission system.
    Type: Application
    Filed: November 14, 2016
    Publication date: November 15, 2018
    Inventor: Hideo KIKUCHI
  • Patent number: 9644146
    Abstract: The present invention provides a composition for forming a liquid crystal layer which enables to achieve takt time reduction and high display quality. The liquid crystal display device according to the present invention includes a liquid crystal material, and a monomer, the monomer being a compound having a structure that generates ketyl radicals when undergoing a hydrogen abstraction reaction caused by exposure to light.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: May 9, 2017
    Assignees: Sharp Kabushiki Kaisha, Toyo Gosei Co., Ltd.
    Inventors: Masanobu Mizusaki, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 9213297
    Abstract: An image forming apparatus is disclosed that includes a power storage unit. The power storage unit includes a constant voltage generation part configured to generate a constant voltage from a commercial power supply, the constant voltage generation part being connected to an external apparatus operating by consuming power; a voltage increasing circuit configured to increase the constant voltage generated by the constant voltage generation part; a capacitor configured to store an electric charge supplied from the voltage increasing circuit; a circuit control part configured to control charging of the capacitor; and an output part configured to output power stored in the capacitor, the power having a voltage different from the constant voltage.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: December 15, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoki Sato, Hideo Kikuchi, Masahide Nakaya
  • Patent number: 9195097
    Abstract: The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light, the alignment film includes a polymer compound having a main chain that contains an imide structure, and the main chain has an imidization ratio of less than 50%.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: November 24, 2015
    Assignees: SHARP KABUSHIKI KAISHA, TOYO GOSEI CO., LTD.
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 9164326
    Abstract: The present invention provides a liquid crystal display device in which image sticking seldom occurs. The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, and the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: October 20, 2015
    Assignees: SHARP KABUSHIKI KAISHA, TOYO GOSEI CO., LTD.
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 9164325
    Abstract: The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light, the alignment film includes a polymer compound having a main chain that contains an imide structure, and the main chain has an imidization ratio of 50% or more.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: October 20, 2015
    Assignees: SHARP KABUSHIKI KAISHA, TOYO GOSEI CO., LTD.
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 9036119
    Abstract: Several aspects of the present invention provide a liquid crystal composition capable of shortening the takt time and achieving excellent display qualities, and a liquid crystal display device and a method for producing a liquid crystal display device which use the liquid crystal composition. The liquid crystal composition of several aspects of the present invention includes a liquid crystal material and one or more kinds of radical polymerizable monomers, at least one kind of the radical polymerizable monomers being a compound generating radicals through a self-cleavage reaction by exposure to light and having at least two radical polymerizable groups.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: May 19, 2015
    Assignees: SHARP KABUSHIKI KAISHA, TOYO GOSEI CO., LTD.
    Inventors: Masanobu Mizusaki, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Publication number: 20140219676
    Abstract: An image forming apparatus is disclosed that includes a power storage unit. The power storage unit includes a constant voltage generation part configured to generate a constant voltage from a commercial power supply, the constant voltage generation part being connected to an external apparatus operating by consuming power; a voltage increasing circuit configured to increase the constant voltage generated by the constant voltage generation part; a capacitor configured to store an electric charge supplied from the voltage increasing circuit; a circuit control part configured to control charging of the capacitor; and an output part configured to output power stored in the capacitor, the power having a voltage different from the constant voltage.
    Type: Application
    Filed: April 9, 2014
    Publication date: August 7, 2014
    Inventors: NAOKI SATO, HIDEO KIKUCHI, MASAHIDE NAKAYA
  • Publication number: 20140168586
    Abstract: Several aspects of the present invention provide a liquid crystal composition capable of shortening the takt time and achieving excellent display qualities, and a liquid crystal display device and a method for producing a liquid crystal display device which use the liquid crystal composition. The liquid crystal composition of several aspects of the present invention includes a liquid crystal material and one or more kinds of radical polymerizable monomers, at least one kind of the radical polymerizable monomers being a compound generating radicals through a self-cleavage reaction by exposure to light and having at least two radical polymerizable groups.
    Type: Application
    Filed: March 8, 2012
    Publication date: June 19, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masanobu Mizusaki, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 8736861
    Abstract: An image forming apparatus is disclosed that includes a power storage unit. The power storage unit includes a constant voltage generation part configured to generate a constant voltage from a commercial power supply, the constant voltage generation part being connected to an external apparatus operating by consuming power; a voltage increasing circuit configured to increase the constant voltage generated by the constant voltage generation part; a capacitor configured to store an electric charge supplied from the voltage increasing circuit; a circuit control part configured to control charging of the capacitor; and an output part configured to output power stored in the capacitor, the power having a voltage different from the constant voltage.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: May 27, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoki Sato, Hideo Kikuchi, Masahide Nakaya
  • Patent number: 8610312
    Abstract: To provide an induced power transmission circuit that transmits, from a transmission antenna (1) connected to a power supply circuit, an AC power having an angular frequency ? to a spaced reception antenna (2) with an excellent efficiency, thereby transmitting it to a load circuit.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: December 17, 2013
    Inventor: Hideo Kikuchi
  • Publication number: 20130169916
    Abstract: The present invention provides a composition for forming a liquid crystal layer which enables to achieve takt time reduction and high display quality. The liquid crystal display device according to the present invention includes a liquid crystal material, and a monomer, the monomer being a compound having a structure that generates ketyl radicals when undergoing a hydrogen abstraction reaction caused by exposure to light.
    Type: Application
    Filed: July 14, 2011
    Publication date: July 4, 2013
    Applicants: Toyo Gosei Co., Ltd., Sharp Kabushiki Kaisha
    Inventors: Masanobu Mizusaki, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Publication number: 20130128204
    Abstract: The present invention provides a liquid crystal display device in which image sticking seldom occurs. The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, and the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light.
    Type: Application
    Filed: July 27, 2011
    Publication date: May 23, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Publication number: 20130128203
    Abstract: The present invention provides a liquid crystal display device in which a high voltage holding ratio is maintained, and also image sticking seldom occurs. The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light, the alignment film includes a polymer compound having a main chain that contains an imide structure, and the main chain has an imidization ratio of 50% or more.
    Type: Application
    Filed: July 27, 2011
    Publication date: May 23, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Publication number: 20130128202
    Abstract: The present invention provides a liquid crystal display device in which a high wettability can be achieved, and also image sticking seldom occurs. The liquid crystal display device according to the present invention includes a pair of substrates, and a liquid crystal layer disposed between the pair of substrates, wherein the liquid crystal layer includes a liquid crystal material having a negative dielectric constant anisotropy, at least one of the pair of substrates is provided with an alignment film for vertically aligning adjacent liquid crystal molecules, and a polymer layer formed on the alignment film for controlling the alignment of the adjacent liquid crystal molecules, the polymer layer is formed by polymerization of at least one monomer, the polymerization being initiated by radicals generated of the monomer upon absorption of light, the alignment film includes a polymer compound having a main chain that contains an imide structure, and the main chain has an imidization ratio of less than 50%.
    Type: Application
    Filed: July 27, 2011
    Publication date: May 23, 2013
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 8008892
    Abstract: A step-down circuit lowers a voltage outputted from a commercial power supply. A step-down-output control and charge control circuit controls a step-down voltage and charges a capacitor bank based on a step-down voltage outputted. A constant-voltage generating circuit generates a constant voltage based on an output of the capacitor bank or an output of the step-down circuit. An image-forming-apparatus control circuit supplies the constant voltage to a load that performs an image forming operation.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: August 30, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Hideo Kikuchi
  • Patent number: 7949885
    Abstract: A power supply device supplies power to an image forming apparatus. The image forming apparatus includes a load and a control unit. The load requires power, and is controlled by the control unit. The power supply includes a capacitor and a power-supply unit. The capacitor is charged by an external power source, and dischargably stores therein power. The power-supply unit provides power supply from the capacitor to the load and the control unit before voltage of the external power source drops below a threshold level where malfunction of the image forming apparatus occurs. After the voltage recovers to the threshold level, the power-supply unit stops the power supply from the capacitor.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: May 24, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Kikuchi, Naoki Sato