Patents by Inventor Shinji Aoki

Shinji Aoki 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: 9354662
    Abstract: An electronic apparatus includes a first casing component that is provided with a through hole and made of metal, a second casing component that is integrally molded with the first casing component and made of resin, and a third casing component that covers the second casing component, wherein the second casing component is provided so as to extend from a face on one side of the through hole of the first casing component to a face on the other side of the first casing component through the through hole. The second casing component includes a fixing portion that fixes the second casing component to the first casing component, and a rib that is provided so as to stand over the first casing component in a position away from the through hole, and the third casing component being supported by the rib.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 31, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Shintaro Ohishi, Shinji Aoki, Masuo Ohnishi
  • Patent number: 9335674
    Abstract: According to an embodiment, provided is a transfer device including: a nip forming member that abuts against a surface of an image carrier carrying a toner image; and a transfer voltage application unit that applies a transfer voltage including a DC component and an AC component. The transfer voltage is an alternating voltage in which a supply voltage having polarity in a transfer direction and a return voltage having polarity opposite. A time average value Vave of the transfer voltage is set to be at polarity in the transfer direction and is set to be closer to a peak value Vt of the supply voltage relative to a center value Voff between a maximum and minimum value. An absolute value of the peak value Vr of the return voltage is set to be larger than an absolute value of the time average value Vave.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: May 10, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Naomi Sugimoto, Shinya Tanaka, Haruo Iimura, Shinji Aoki, Yasuhiko Ogino, Keigo Nakamura
  • Patent number: 9310722
    Abstract: [Problem to be solved] To provide an image forming apparatus for suppressing formations of white spots and achieving high quality images, while obtaining sufficient image densities in both of the recessed parts and the projected parts of a recording medium surface. [Solution] An image forming apparatus includes a transfer member 36 that abuts against a surface of an image carrier carrying a toner image and forms a transfer nip, and a power supply 39 that outputs a voltage (transfer bias) for causing the toner image on the image carrier to be transferred onto a recording medium P nipped in the transfer nip. The voltage is switched alternatingly between a transfer direction voltage for causing the toner image to be transferred from the image carrier onto the recording medium and a voltage having an opposite polarity of the transfer direction voltage when the toner image on the image carrier is to be transferred onto the recording medium.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: April 12, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Shinya Tanaka, Naomi Sugimoto, Haruo Iimura, Shinji Aoki, Yasuhiko Ogino, Kazuchika Saeki, Keigo Nakamura
  • Patent number: 9285723
    Abstract: An image forming apparatus includes an image carrier to carry a toner image, a transfer member to form a transfer nip by contacting the image carrier surface, and a power supply to output a voltage to the recording material captured in the transfer nip so as to transfer the toner image formed on the image carrier surface. The voltage is switching alternately between a voltage in the transfer direction and a voltage opposite to the voltage in the transfer direction, and a time average value (Vave) of the voltage is set to have a polarity of the transfer direction, and is set to a value in the transfer voltage side, and a change mode to change a cycle of the voltage output from the power supply can be changed based on the toner deterioration information which determines the deterioration status of the toner.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: March 15, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Naomi Sugimoto, Shinya Tanaka, Haruo Iimura, Shinji Aoki, Yasuhiko Ogino, Keigo Nakamura
  • Patent number: 9268004
    Abstract: A broadcasting device includes a broadcasting unit configured to broadcast positional information indicating the position of the broadcasting device; and a receiving unit configured to receive, from a communication terminal receiving the broadcast positional information, terminal identification information for identifying the communication terminal and the positional information.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: February 23, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shin Kusakari, Seiji Miyawaki, Michitaka Fukuda, Kunihiro Miyauchi, Satoshi Kawasaki, Yasuo Ohashi, Shinji Aoki, Takaaki Hiroi, Yusuke Matsushita
  • Publication number: 20160032214
    Abstract: A lubricating oil composition contains: a base oil with a kinematic viscosity at 40 degrees C. in a range from 1 mm2/s to 200 mm2/s, a viscosity index of 80 or more and a sulfur content of less than 0.03 mass %; a component (A) being a polyacrylate compound with a mass average molecular weight in a range from 10,000 to 100,000; and a component (B) being at least one of phosphorus compounds represented by a formula (1) below. A content of the component (B) is in a range from 0.05 mass % to 2.0 mass % of a total amount of the composition, and a viscosity index of the composition is 160 or more.
    Type: Application
    Filed: February 10, 2014
    Publication date: February 4, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Jitsuo SHINODA, Shinji AOKI
  • Publication number: 20150371603
    Abstract: An output system is provided that includes at least one output apparatus configured to output content information. The output system includes a determination part configured to determine, based on the content information, whether to generate first control information for switching the output apparatus to a power-saving mode, the first control information being generated with respect to the output apparatus that does not have to output the content information. The output system further includes a control information generation part configured to generate the first control information when the determination part determines that the first control information has to be generated and a power control part configured to switch the output apparatus to the power-saving mode based on the first control information.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 24, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tatsuya NAGAFUCHI, Junichi HARA, Shinji AOKI, Shigeyuki ISHII, Tatsuroh SUGIOKA
  • Publication number: 20150371682
    Abstract: A content reproducing apparatus includes a reproducing unit configured to reproduce content including audio and video, and a power control unit configured to perform power control of the reproducing unit based on a reproducing position of the content and non-reproduction period information indicating at least one of a period during which reproduction of the audio of the content is unnecessary and a period during which reproduction of the video of the content is unnecessary.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 24, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Shinji AOKI, Junichi HARA, Shigeyuki ISHII, Tatsuroh SUGIOKA, Tatsuya NAGAFUCHI
  • Publication number: 20150338792
    Abstract: An image forming apparatus includes an image bearer to bear a toner image, a toner image forming device to form the toner image on the image bearer, a nip forming device to contact the image bearer to form a transfer nip between the image bearer and the nip forming device, a transfer bias output device to output a transfer bias including a DC component and an AC component to transfer the toner image from the image bearer onto a recording medium interposed in the transfer nip, and a controller operatively connected to the transfer bias output device to adjust a frequency f of the AC component of the transfer bias in accordance with an image area ratio A such that the frequency f is at its minimum with a predetermined image area ratio Amin %, where Amin % is greater than 0 but lower than an image area ratio of a solid image.
    Type: Application
    Filed: May 12, 2015
    Publication date: November 26, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Keigo NAKAMURA, Haruo IIMURA, Shinji AOKI
  • Patent number: 9173188
    Abstract: A communication apparatus which transmits information on a position at which the communication apparatus is positioned is disclosed. The communication apparatus includes a detecting unit which detects one of a first signal which is detected when the communication apparatus is fixed to an installed location and a second signal which is detected when the communication apparatus is brought to a state in which it is not fixed to the installed location; a storage unit which stores therein the position information; and a control unit which erases the position information stored in the storage unit when the second signal is detected after the first signal is detected by the detecting unit.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: October 27, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Seiji Miyawaki, Yasuo Ohashi, Michitaka Fukuda, Shin Kusakari, Kunihiro Miyauchi, Satoshi Kawasaki, Takaaki Hiroi, Shinji Aoki, Yusuke Matsushita
  • Patent number: 9173246
    Abstract: An information management system is disclosed that includes a wireless terminal configured to store identification data of the wireless terminal used to identify the wireless terminal in the system; a broadcasting device configured to transmit position data which represents a position at which the device is located for a predetermined area; and a server configured to store position data indicating a position at which the terminal is located. The terminal includes a collection unit configured to collect environmental data which represents a state of an environment around the terminal; a receiving unit configured to receive the position data from the device when the terminal is located in the predetermined area; and a transmission unit configured to transmit, via the device, to the server, the identification of the terminal, the position data received from the device, and the environmental data collected by the collection unit.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: October 27, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yasuo Ohashi, Michitaka Fukuda, Shin Kusakari, Seiji Miyawaki, Kunihiro Miyauchi, Satoshi Kawasaki, Takaaki Hiroi, Shinji Aoki, Yusuke Matsushita
  • Publication number: 20150286168
    Abstract: According to an embodiment, provided is a transfer device including: a nip forming member that abuts against a surface of an image carrier carrying a toner image; and a transfer voltage application unit that applies a transfer voltage including a DC component and an AC component. The transfer voltage is an alternating voltage in which a supply voltage having polarity in a transfer direction and a return voltage having polarity opposite. A time average value Vave of the transfer voltage is set to be at polarity in the transfer direction and is set to be closer to a peak value Vt of the supply voltage relative to a center value Voff between a maximum and minimum value. An absolute value of the peak value Vr of the return voltage is set to be larger than an absolute value of the time average value Vave.
    Type: Application
    Filed: June 17, 2015
    Publication date: October 8, 2015
    Inventors: Naomi SUGIMOTO, Shinya TANAKA, Haruo IIMURA, Shinji AOKI, Yasuhiko OGINO, Keigo NAKAMURA
  • Patent number: 9141010
    Abstract: A particulate material production apparatus is disclosed. The particulate material production apparatus includes a droplet ejector to eject droplets of a particulate material composition liquid or a melted particulate material composition in a droplet ejection direction from nozzles; a solidifying device to solidify the droplets; a first airflow forming device to form a first airflow to feed the ejected droplets to the solidifying device with the first airflow; and a second airflow forming device to form a second airflow to apply the second airflow the droplets before the droplets are fed by the first airflow. The second airflow forming device forms the second airflow by supplying a pressed gas from a slit, and the traveling direction of the first airflow is substantially perpendicular to the droplet ejection direction.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: September 22, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Kiyotada Katoh, Yoshihiro Norikane, Yasutada Shitara, Shinji Aoki, Minoru Masuda, Satoshi Takahashi
  • Publication number: 20150262729
    Abstract: A silver-coated copper powder includes copper core particles and a silver coat layer located on the surface of the core particles. When S1 is a BET specific surface area (m2/g) of the silver-coated copper powder; S2 is a specific surface area (m2/g) calculated from a particle diameter D50 obtained by the analysis of a microscopic image of the silver-coated copper powder; and t is a thickness of the silver coat layer, the silver-coated copper powder satisfies Expression: (S1/S2)?0.005×t+1.45. The silver-coated copper powder has a volume cumulative particle diameter D50L at a cumulative volume of 50 vol % as measured by laser diffraction-scattering method of 0.01 to 100 ?m.
    Type: Application
    Filed: November 8, 2013
    Publication date: September 17, 2015
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Shinji Aoki, Masanori Tanaka, Toshihiro Kohira, Takahiko Sakaue
  • Patent number: 9132593
    Abstract: A disclosed method for producing a hollow cell array structure includes a first step of layering a deformable material capable of being plastically deformed under a predetermined condition on a first substrate, the first substrate having plural, mutually separated depressions in a surface thereof, such that the deformable material forms mutually isolated spaces in the corresponding depressions; a second step of expanding the spaces in the plural depressions by inducing a gas pressure of the spaces while extending the deformable material on the first substrate, such that plural hollow cells are simultaneously formed in correspondence to the plural depressions in predetermined directions; and a third step of selectively solidifying portions of the plural hollow cells by selectively applying ultraviolet rays thereto.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: September 15, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshihiro Kanematsu, Masaru Ohgaki, Shinji Aoki, Shinya Seno, Masahiro Masuzawa, Hisayoshi Ohshima, Yukie Inoue
  • Patent number: 9128649
    Abstract: A control apparatus is disclosed that may communicate with a wireless terminal and an information processing device. The control apparatus includes a first obtaining unit configured to obtain position data of the wireless terminal; a second obtaining unit configured to obtain state information about the information processing device; a determining unit configured to make a determination that the position data obtained by the first obtaining unit indicates a predetermined location and the state information obtained by the second obtaining unit indicates a predetermined state; and a transmission unit configured to transmit to the information processing device a control signal causing the information processing device to execute predetermined processing in response to the determination made by the determining unit.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: September 8, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Kawasaki, Satoshi Takano, Shinji Aoki
  • Patent number: 9094793
    Abstract: A transmission system, a location management system, and a transmission method, each of which transmits first location data and second location data, respectively, from a first transmission device and a second transmission device, and receives, at the second transmission device, the first location data and terminal identification data that identifies a communication terminal, from the communication terminal that receives at least the first location data.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: July 28, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Shin Kusakari, Seiji Miyawaki, Michitaka Fukuda, Kunihiro Miyauchi, Satoshi Kawasaki, Yasuo Ohashi, Shinji Aoki, Takaaki Hiroi, Yusuke Matsushita
  • Patent number: 9081335
    Abstract: According to an embodiment, provided is a transfer device including: a nip forming member that abuts against a surface of an image carrier carrying a toner image; and a transfer voltage application unit that applies a transfer voltage including a DC component and an AC component. The transfer voltage is an alternating voltage in which a supply voltage having polarity in a transfer direction and a return voltage having polarity opposite. A time average value Vave of the transfer voltage is set to be at polarity in the transfer direction and is set to be closer to a peak value Vt of the supply voltage relative to a center value Voff between a maximum and minimum value. An absolute value of the peak value Vr of the return voltage is set to be larger than an absolute value of the time average value Vave.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: July 14, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Naomi Sugimoto, Shinya Tanaka, Haruo Iimura, Shinji Aoki, Yasuhiko Ogino, Keigo Nakamura
  • Publication number: 20150144849
    Abstract: The disclosed composite copper particle includes a core particle including copper, and a coating layer including a copper-tin alloy and formed on the surface of the core particle, the composite copper particle having a particle diameter at 50% cumulative volume in the particle size distribution of 0.1 to 10.0 ?m. The alloy is preferably CuSn. The ratio of tin to the the composite copper particle is preferably 3.0 to 12.0 mass %. The composite copper particle is suitably obtained by a method including a step of mixing a reducing agent for tin and an aqueous slurry containing a tin source compound and core particles which include copper, to form a coating layer including a copper-tin alloy on a surface of the core particles.
    Type: Application
    Filed: June 19, 2013
    Publication date: May 28, 2015
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Toshihiro Kohira, Takafumi Sasaki, Shinji Aoki, Takahiko Sakaue
  • Patent number: 9020382
    Abstract: An image forming apparatus includes a nip forming member and a transfer bias output device that outputs a transfer bias to form a transfer electric field in a transfer nip between the nip forming member and an intermediate transfer member. Upon transfer of a composite toner image including a particular toner image onto a recording medium in the transfer nip, the transfer bias output device outputs the transfer bias including a first superimposed bias in which a direct current (DC) component is superimposed on an alternating current (AC) component. Upon transfer of the composite toner image without the particular toner image onto the recording medium in the transfer nip, the transfer bias output device outputs one of the transfer bias including a second superimposed bias having a peak-to-peak value of the AC component smaller than that of the first superimposed bias and the transfer bias including only the DC component.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: April 28, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Shinji Aoki, Haruo Iimura, Yasuhiko Ogino, Tadashi Kasai, Naomi Sugimoto, Shinya Tanaka, Keigo Nakamura