Patents Assigned to Ricoh Company
  • Publication number: 20140327421
    Abstract: By controlling the duty of a switching pulse signal and a switching frequency of the signal in response to changes in load current, the ripple of the output voltage can be reduced and switching losses can be reduced and thus a switching regulator that is efficient can be provided.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 6, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventor: Nobuharu Arao
  • Publication number: 20140328605
    Abstract: An image forming apparatus includes an operating member operated by an operator to give an instruction on operation; a top exterior member that is formed with a holding recess in which the operating member is arranged; a first mounting part provided on the holding recess, on which the operating member is mounted in a first posture in which the operating member is inclined by a first inclination angle with respect to the top exterior member; and a second mounting part provided in the holding recess, on which the operating member is mounted in a second posture in which the operating member is inclined by a second inclination angle different from the first inclination angle with respect to the top exterior member. The operating member is configured to be selectively mounted either on the first mounting part or on the second mounting part with use of a mounting member.
    Type: Application
    Filed: April 24, 2014
    Publication date: November 6, 2014
    Applicant: Ricoh Company, Limited
    Inventor: Goro KATSUYAMA
  • Publication number: 20140327922
    Abstract: An apparatus includes a reading unit that reads a first value indicating usage of the apparatus from a portable storage medium, a use limiting unit that updates the first value according to use of the apparatus and limits use of the apparatus when the updated first value reaches a predetermined value, and a writing unit that writes the updated first value into the portable storage medium.
    Type: Application
    Filed: April 23, 2014
    Publication date: November 6, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventor: Daisuke KAMISHIRO
  • Patent number: 8881160
    Abstract: An information processing apparatus sequentially executing one or more processes of a workflow on an input document includes: a workflow-information storage unit storing workflow information; a result storage unit storing a process result; a workflow control unit receiving workflow identification information for identifying the workflow and acquiring workflow information from the workflow-information storage unit on the basis of the workflow identification information; and a result acquiring unit acquiring the process result from the result storage unit based on the result identification information when the workflow information acquired by the workflow control unit includes the result identification information.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Hiroki Ozaki, Masateru Kumagai, Shinsuke Yanazume, Hiroshi Baba, Shoh Nagamine
  • Patent number: 8876294
    Abstract: An image forming apparatus includes an optical scanning device including a light source element configured to radiate a light beam, an optical deflector configured to deflect the light beam two-dimensionally, and a target scanning surface that is transparent and having a two-dimensional image formed thereon by the light beam deflected from the optical deflector, and a projection optical system including a convex mirror and configured to enlarge and project the two-dimensional image on a target projection surface. The target projection surface includes a reflection surface of a half mirror. The half mirror is positioned outside of the image forming apparatus and configured to transmit a part of a light incident on the half mirror and reflect another part of the light incident on the half mirror.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Kenichiroh Saisho, Hiroyuki Satoh
  • Patent number: 8879133
    Abstract: A multi-beam light source device includes a vertical cavity surface emitting laser device having monolithically fabricated multiple light sources; an optical sensor to monitor an output of beams of light emitted from the vertical cavity surface emitting laser; a printed circuit board on which a driving circuit is formed to drive the vertical cavity surface emitting laser device based on monitoring signals from the optical sensor; a coupling lens to change the beams of light emitted from the vertical cavity surface emitting laser device to a predetermined state; a transparent board on which a wiring pattern is formed to wire an electrode of the vertical cavity surface emitting laser device and a terminal of the driving circuit; and a holding unit to integrally hold the vertical cavity surface emitting laser device, the optical sensor, the printed circuit board, the coupling device, and the transparent board.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Tomohiro Nakajima
  • Patent number: 8879098
    Abstract: A distributed printing system, in which a parent device divides image data into first and second image data, the first image data edited by the parent device itself, and the second image data requested of a child device to edit. The parent device sends the second image data to the child device and requests the child device to edit the second data, and generates first edited image data and sends the first edited image data to the child device. The child device generates second edited image data by editing the second image data received from the parent device, sends the second edited image data to the parent device, and prints out the first edited image data received from the parent device and the second edited image data sequentially. The parent device prints out the first edited image data and the second edited image data received from the child device sequentially.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Tomoyuki Tsukuba
  • Patent number: 8878885
    Abstract: An image forming apparatus includes a sheet-linear-velocity setting unit, an image-formation-rate changing unit, a detecting unit, and first and second correcting units. When printing is performed with a first sheet linear velocity, the first correcting unit performs misregistration correction according to a result of detection of a misregistration correction pattern image by the detecting unit. When the sheet-linear-velocity setting unit sets a second sheet linear velocity other than the first sheet linear velocity, the second correcting unit corrects an adjustment amount used in the misregistration correction performed by the first correcting unit, according to a ratio between first and second coefficients. The first coefficient indicates a ratio of an actual image formation rate at the first sheet linear velocity to an ideal image formation rate, and the second coefficient indicates a ratio of an actual image formation rate at the second sheet linear velocity to an ideal image formation rate.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Tatsuya Miyadera
  • Patent number: 8877418
    Abstract: The developing method includes developing an electrostatic latent image on an image bearing member with a two-component developer including a toner and a carrier and born on at least one developer bearing member, whose surface moves at a linear speed of from 300 mm/sec to 2,000 mm/sec. The carrier includes a particulate core material; and a cover layer located on a surface of the core material and including a crosslinked material obtained by crosslinking a resin including a first unit having a specific tris(trialkylsiloxy) silyl group and a second unit having a specific alkoxysilyl group having a crosslinking ability. Each of the first unit and the second unit is included in the resin in a molar ratio of from 0.1 to 0.9 based on all the units included in the resin.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Hisashi Nakajima, Kimitoshi Yamaguchi, Shigenori Yaguchi, Hitoshi Iwatsuki, Toyoaki Tano, Mariko Takii, Minoru Masuda, Koichi Sakata, Saori Yamada, Hiroyuki Kishida
  • Patent number: 8879972
    Abstract: A fuser includes a cylindrical heating rotating body including a heat generator and a pressure rotating body including a circumferential face which has contact with the heating rotating body to form a nip portion for fusing, wherein a disk-like outside plate, which is exposed outside, is provided in one end or both ends of the heating rotating body in a rotation axis direction, a disk-like inside plate is provided in an inner circumferential face of the heating rotating body on an inside of the outside plate to have an interval relative to the outside plate, a center vent is provided near a center of the outside plate, an outer edge vent is provided in an outer edge or the neighborhood thereof of the outside plate, and a flow path, which connects the center vent and the outer edge vent, is provided between the outside vent and the inside vent.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Hisashi Kawamoto, Kenji Maeda, Kenji Taguchi, Yukari Isoe, Toshiki Yokoyama
  • Patent number: 8881231
    Abstract: Techniques for automatically performing one or more actions responsive to a successful login. In one embodiment, an action automatically performed responsive to the login uses content created prior to the login.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: John Barrus
  • Patent number: 8876234
    Abstract: According to an embodiments, a power supply device includes: a first voltage generator that operates to output a first voltage; a second voltage generator that operates to output a second voltage higher than the first voltage; a third voltage generator that, from the second voltage generated by the second voltage generator, operates to generate a third voltage equal to the first voltage and to output the third voltage therefrom; and a selector that operates to select as an output whichever has a higher voltage from the output of the first generator and the output of the second generator, wherein each of the output of the second voltage generator and the output selected by the selector are supplied to a load.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Tomokazu Kanzawa
  • Patent number: 8879945
    Abstract: A cooling device includes a heat receiving unit arranged to contact with a cooling target to receive heat of the cooling target; a heat radiating unit configured to radiate heat of coolant; a tank configured to store therein the coolant; a circulating path configured to circulate the coolant through the heat receiving unit, the heat radiating unit, and the tank; a pump configured to transfer the coolant in the circulating path; and a liquid transfer detecting unit configured to detect liquid transfer of the coolant. The liquid transfer detecting unit includes a detector arranged above a liquid level of the coolant stored in the tank at a position where the coolant having flowed into the tank is hit when the coolant is transferred. The detector is arranged so as to be visible from the outside of the tank.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Hiomitsu Fujiya, Satoshi Okano, Tomoyasu Hirasawa, Masanori Saitoh, Keisuke Ikeda, Kenichi Takehara, Yasuaki Iijima, Keisuke Yuasa
  • Patent number: 8878599
    Abstract: A semiconductor integrated circuit device includes a power-supply terminal to which a power-supply voltage is input; and multiple MOS transistors including an Nch deplete mode MOS transistor functioning as a current source and at least one Pch enhancement mode MOS transistor formed on a silicon-on-insulator substrate including a silicon substrate, a buried-oxide film, and a silicon activate layer, each of the multiple MOS transistors dimensioned so that a bottom of a source diffusion layer and a bottom of a drain diffusion layer reach the buried-oxide film, the at least one Pch enhancement mode MOS transistor being connected to the supply terminal through the Nch depletion mode MOS transistor. The Nch depletion mode MOS transistor has electrical characteristics such that a source voltage thereof is higher than a silicon substrate voltage thereof and a saturation current of the Nch depletion mode MOS transistor is decreased.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Takaaki Negoro
  • Patent number: 8880407
    Abstract: A projector includes a display part configured to display a first image by projection; a retrieval object specifying part configured to cause a user of the projector to specify an object of retrieval; a result display area specifying part configured to cause the user to specify an area for displaying the result of the retrieval in the displayed first image; and an image combining part configured to receive a second image of the result of the retrieval from a server that has performed the retrieval with respect to the object of retrieval specified by the user, and to display the second image by combining the second image with the area for displaying the result of the retrieval in the displayed first image.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoru Ohno, Yoshiyuki Toda
  • Patent number: 8879057
    Abstract: A spectral characteristic acquiring apparatus is provided which includes: an area dividing part; a spectrum separating part; a light receiving part; and a calculating part, wherein the calculating part includes a transformation matrix storing part that stores a transformation matrix used for calculating the spectral characteristic corresponding to electrical signals of a first diffraction pattern group including two or more adjacent diffraction patterns, and a spectral characteristic calculating part that calculates, based on the electrical signals of the first diffraction pattern group and the corresponding transformation matrix, the spectral characteristic at the locations of the image carrying medium corresponding to the apertures of the first diffraction pattern group.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Kohei Shimbo, Naohiro Kamijo, Yoichi Kubota, Manabu Seo
  • Patent number: 8875988
    Abstract: An image forming apparatus including a printing-data-receiving unit configured to receive a printing-data-item including a user identification information item and a password, and to save the printing-data-item in a storage device; a user-authentication unit configured to receive input information specifying a user identification information item of a user, and to authenticate the user based on a managing unit that manages association information associating user identification information items with passwords; a list-display unit configured to cause a display device to display a list of printing-data-items each including the same user identification information item as that of the user; and a printing-control unit configured to execute a printing job of a printing-data-item selected from the list, wherein in the event that there is a printing-data-item that cannot be printed, the printing-control unit does not cancel a printing job of another printing-data-item that can be printed.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Takayori Nishida
  • Patent number: 8879600
    Abstract: A surface emitting laser array element is disclosed that includes a lower distributed bragg reflector (DBR) that is formed on a substrate, an active layer that is formed on the lower DBR, and an upper DBR that is formed on the active layer. A mesa and a dummy mesa that is arranged at a periphery of the mesa are created by removing a portion of the upper DBR. The mesa forms a surface emitting laser, and a wiring is connected to an electrode that is formed on an upper face of the mesa. The wiring includes a portion that is arranged over an upper face of the dummy mesa, a side face of the dummy mesa, and a bottom face at a peripheral region of the dummy mesa extending along a longitudinal direction of the wiring.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Katsunari Hanaoka, Masayuki Numata, Hiroyoshi Shouji
  • Patent number: 8877584
    Abstract: A method of manufacturing an interconnection member includes forming on a substrate a wettability changing layer containing a material in which critical surface tension is changed by giving energy; forming a depression part in the wettability changing layer by a laser ablation method using a laser of an ultraviolet region; and coating the depression part with an electrically conductive ink to form an electrically conductive part. At the same time when a pattern of the depression part is formed in the wettability changing layer, a pattern of a high surface energy area is formed as a result of the critical surface tension being changed.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Koei Suzuki, Haruo Nakamura, Atsushi Onodera, Takanori Tano, Hiroshi Miura
  • Patent number: 8876107
    Abstract: A sheet stacking device includes: a stacking unit that stacks thereon a sheet discharged in a sheet discharging direction; a conveying unit that performs a moving-back operation of conveying the stacked sheet in a direction opposite to the sheet discharging direction; a pressing unit that performs a pressing operation of pressing the conveyed sheet; and a driving unit that drives the conveying unit and the pressing unit by a same driving source.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Junya Suzuki, Kiichiro Goto, Takashi Fukumoto, Yasuo Niikura, Shintaro Matsumoto, Satoru Takano, Hidetoshi Kojima, Kei Sasaki, Kazunori Konno, Yuuta Mori, Kohjiroh Haga, Takamasa Matsumoto, Ryo Takahashi, Youhei Niitsuma