Patents by Inventor Hiroshi Fujiwara

Hiroshi Fujiwara 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: 8975849
    Abstract: There are provided a first notch filter disposed in a feedback control system, an oscillation extracting filter for outputting signal x1 containing an oscillation component, a second notch filter for inputting signal x1, a notch control portion for changing a notch center frequency based on signal x1 and second notch filter output signal x2, a notch depth control portion for changing a notch depth of the first notch filter based on signal x1, and a control determining portion for carrying out control to operate either the notch control portion or the notch depth control portion.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: March 10, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroshi Fujiwara, Toru Tazawa
  • Patent number: 8907955
    Abstract: A vector image drawing device has the following configuration. A contour generation unit (104), based on vector data, generates contour data that represents the starting pixels on a scan line in a drawing area where fill-in starts, and the ending pixels where fill-in ends. An outline buffer (106) stores the number of starting or ending pixels in the contour data for fill-in for each drawn pixel. An error judgment unit (2), when storing the contour data in the outline buffer (106), determines in which pixel there is overflow in the outline buffer of contour data. A pixel position transfer unit (3) adds the numerical value of the overflow portion of a pixel that the error judgment unit (2) determined to have overflow to the numerical value of contour data that corresponds to a pixel.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: December 9, 2014
    Assignees: NEC Soft, Ltd., NEC Solution Innovators, Ltd.
    Inventor: Hiroshi Fujiwara
  • Patent number: 8901872
    Abstract: There are provided: a plurality of notch filters which are arranged inside a control system for feedback-controlling a moving operation of a moving section of a motor and attenuate signal components having near frequencies with a notch frequency at a center in an input signal; a plurality of oscillation extracting filters which are set with different frequency bands as being corresponded to the respective notch filters and extract oscillating components in the set frequency bands from a speed detection signal; and a plurality of notch controlling sections which are arranged with respect to the respective oscillation extracting filters and control the notch frequencies of the corresponding notch filters so as to decrease amplitudes of the oscillating components extracted by the oscillation extracting filters.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: December 2, 2014
    Assignee: Panasonic Corporation
    Inventors: Toru Tazawa, Hiroshi Fujiwara, Masaru Nishizono
  • Patent number: 8807552
    Abstract: A base plate is selectively attached to a lower surface of a main body of an image forming apparatus or to an optional sheet feeder attachable to the main body.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: August 19, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Kazuyoshi Kondo, Yasuo Matsuyama, Hiroshi Fujiwara, Yasuhide Ohkubo, Ippei Kimura, Toshikane Nishii, Mizuna Tanaka, Tomoyoshi Yamazaki, Haruyuki Honda, Masafumi Takahira
  • Publication number: 20140168657
    Abstract: An optical tomography device 1 is provided as one capable of obtaining tomographic information of a measuring object with higher accuracy. In the optical tomography device 1, numerical apertures of reception fibers 12, 13 are different from each other. Therefore, the device has a configuration wherein the reception fibers 12, 13 receive two kinds of respective light beams with different solid angle distributions, whereby the device can also obtain angular information, in addition to intensity information of light emerging from a measuring object 100. As a result, the accuracy is enhanced for an analysis about the tomographic information of the measuring object.
    Type: Application
    Filed: May 9, 2012
    Publication date: June 19, 2014
    Applicants: Kyoto University, Sumitomo Electric Industries, Ltd.
    Inventors: Haruo Nakaji, Hidenao Fukuyama, Yuusuke Iso, Shinichi Urayama, Naoya Oishi, Hiroshi Fujiwara
  • Patent number: 8752824
    Abstract: A sheet inverting device includes a loop pathway including an entrance slot to which a recording medium is conveyed and an exit slot from which the recording medium is conveyed, the loop pathway forming a loop shape to convey the recording medium therethrough in a forward direction defined by a sheet conveyance direction in which the recording medium is conveyed from the entrance slot travels, and a redirectable sheet conveyance member to convey the recording medium traveling through the loop pathway in the forward direction and a reverse direction that is the reverse of the forward direction. The exit slot is configured to convey the recording medium that is conveyed by the redirectable sheet conveyance member in the reverse direction outside the sheet inverting device therethrough.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: June 17, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Fujiwara, Tomoyoshi Yamazaki, Haruyuki Honda, Toshikane Nishii, Mizuna Tanaka
  • Publication number: 20140113907
    Abstract: The present invention provides a pyridylaminoacetic acid compound represented by the following formula (1): (wherein R1, R2, R3, Y and Z are as defined in the description and claims), or a pharmacologically acceptable salt thereof. Since the pyridylaminoacetic acid compound has EP2 agonistic action, it is useful as a therapeutic or prophylactic drug for respiratory diseases such as asthma or chronic obstructive pulmonary disease.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 24, 2014
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Ryo IWAMURA, Masayuki TANAKA, Tetsushi KATSUBE, Manabu SHIGETOMI, Eiji OKANARI, Yasunori TOKUNAGA, Hiroshi FUJIWARA
  • Patent number: 8666297
    Abstract: An image forming apparatus includes an image forming unit forming an image on a sheet transported along a transport path in a printing operation; a sheet stacking unit in which the sheet ejected at the end of the transport path is stacked; a sheet detecting unit detecting the presence or absence of the sheet in the transport path; a counting unit counting number-of-sheet data of the sheet detected by the sheet detecting unit; and a control unit controlling the printing operation in accordance with a first print request from a print instructing unit for a print job and based on a count value obtained by the counting unit. The control unit clears the count value in the absence of a next print request from the print instructing unit within a predetermined time after completion of the printing operation.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: March 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Haruyuki Honda, Hiroshi Fujiwara, Tomoyoshi Yamazaki, Toshikane Nishii, Mizuna Tanaka
  • Patent number: 8648097
    Abstract: The present invention provides a novel pyridylaminoacetic acid compound represented by the following formula (1): (wherein R1, R2, R3, Y and Z are as defined in the description and claims), or a pharmacologically acceptable salt thereof. The pyridylaminoacetic acid compound has EP2 agonistic action and is therefore useful as a therapeutic and/or prophylactic agent for respiratory diseases such as asthma or chronic obstructive pulmonary disease.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: February 11, 2014
    Assignee: Ube Industries, Ltd.
    Inventors: Ryo Iwamura, Masayuki Tanaka, Tetsushi Katsube, Manabu Shigetomi, Eiji Okanari, Yasunori Tokunaga, Hiroshi Fujiwara
  • Patent number: 8561979
    Abstract: An open/close mechanism can be used for paper trays of an image forming apparatus. The open/close mechanism includes a plate member provided on a side of a housing of the image forming apparatus and configured to pivot upon an axis between an open position and a close position, and a box member that is arranged in the housing beneath the plate member and that can be drawn out of the housing from the side. The open/close mechanism includes also includes a restricting unit that is coupled to the plate member and that abuts against the box member when the box member is set in the housing and when the plate member is in the open position thereby restricting detachment of the box member from the housing.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: October 22, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshikane Nishii, Kazuhiro Wakamatsu, Yasuhide Ohkubo, Ippei Kimura, Mizuna Tanaka, Haruyuki Honda, Masafumi Takahira, Hiroshi Fujiwara
  • Patent number: 8505913
    Abstract: A sheet transport mechanism that can be incorporated in an image forming apparatus includes a first sheet transport member, a second sheet transport member disposed downstream from the first sheet transport member in a sheet transport direction, a sheet transport path defined by and curved between the first and second sheet transport members and including a downstream section recessed from an upstream section in the sheet transport direction, and a contact member disposed at the downstream section and including a first contact portion to which the leading edge of a sheet contacts to move the contact member in a direction to recess from the sheet transport path and a second contact portion connected to the first contact portion to advance toward the sheet transport path at a position upstream from the first contact portion in the sheet transport direction to contact the surface of the sheet.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: August 13, 2013
    Assignee: Ricoh Company, Limited
    Inventors: Toshikane Nishii, Hiroshi Fujiwara, Tomoyoshi Yamazaki, Haruyuki Honda, Kazuyoshi Kondo, Mizuna Tanaka
  • Patent number: 8465015
    Abstract: An image forming apparatus for which a control method is performed includes a recording unit, a conveying device conveying a recording medium to the recording unit, a feeding device supplying the recording medium to the conveying device, a recording medium conveying pathway along which the recording medium travels, and a control device controlling the conveying device and the feeding device. A first partial length of the recording medium conveying pathway extending from the feeding device to the recording unit is shorter than a conveyance direction length of a maximum usable size recording medium. When the leading end of the recording medium is located between the conveying device and the recording unit after the conveying device is driven to convey the recording medium, the control device switches the feeding device from a driven state to a non-driven state to move the feeding device by the recording medium.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: June 18, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Fujiwara, Tomoyoshi Yamazaki, Haruyuki Honda, Toshikane Nishii, Mizuna Tanaka
  • Patent number: 8413982
    Abstract: A conveyer includes a first rotating body; a second rotating body pair; and an intermediate rotating body arranged between the first rotating body and the second rotating body pair. A curl of the recording medium is corrected by winding and bending the recording medium around and with the intermediate rotating body at a bent angle formed by a tangent line shared by the intermediate rotating body and the first rotating body, and a line on which such a tangent line of the intermediate rotating body is connected to a nip point of the second rotating body pair. The intermediate rotating body includes an escape mechanism that is capable of causing the intermediate rotating body to escape in a direction to increase the bent angle depending on the width of the recording medium.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: April 9, 2013
    Assignee: Ricoh Company Limited
    Inventors: Haruyuki Honda, Hiroshi Fujiwara, Kazuyoshi Kondo, Toshikane Nishii, Mizuna Tanaka, Tomoyoshi Yamazaki
  • Patent number: 8417174
    Abstract: A sheet feeding device includes a sheet feed cassette, a bottom plate and an end wall mechanism. When the number of recording media sheets decreases, the bottom plate hinged at a trailing edge thereof rises about the hinged end to keep the top sheet of the recording media sheets in contact with a sheet feed roller. The end wall mechanism includes a first urging member, a first pressing member, a support member, and a second pressing member, and aligns and presses the trailing edge of the recording medium. The first pressing member urged by the first urging member and supported by the support member presses the trailing edge of the recording medium. The second pressing member urged by the second urging member moves down due to the weight of the recording medium on the second pressing member and moves up when the number of the recording media sheets decreases.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: April 9, 2013
    Assignee: Ricoh Company Limited
    Inventors: Tomoyoshi Yamazaki, Haruyuki Honda, Hiroshi Fujiwara, Kazuyoshi Kondo, Toshikane Nishii, Mizuna Tanaka
  • Publication number: 20130063064
    Abstract: There are provided a first notch filter disposed in a feedback control system, an oscillation extracting filter for outputting signal x1 containing an oscillation component, a second notch filter for inputting signal x1, a notch control portion for changing a notch center frequency based on signal x1 and second notch filter output signal x2, a notch depth control portion for changing a notch depth of the first notch filter based on signal x1, and a control determining portion for carrying out control to operate either the notch control portion or the notch depth control portion.
    Type: Application
    Filed: May 25, 2011
    Publication date: March 14, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroshi Fujiwara, Toru Tazawa
  • Patent number: 8378615
    Abstract: There are provided: a plurality of notch filters which are arranged inside a control system for feedback-controlling a moving operation of a moving section of a motor and attenuate signal components having near frequencies with a notch frequency at a center in an input signal; a plurality of oscillation extracting filters which are set with different frequency bands as being corresponded to the respective notch filters and extract oscillating components in the set frequency bands from a speed detection signal; and a plurality of notch controlling sections which are arranged with respect to the respective oscillation extracting filters and control the notch frequencies of the corresponding notch filters so as to decrease amplitudes of the oscillating components extracted by the oscillation extracting filters.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: February 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Toru Tazawa, Hiroshi Fujiwara, Masaru Nishizono
  • Patent number: 8340564
    Abstract: The sheet thickness detector includes a fixed member, a displacement roller disposed opposite the fixed member and movable in such a linear direction as to be contacted with or separated from the fixed member when the sheet passes through a nip therebetween, bearings rotatably supporting a shaft of the displacement roller, a displacement member movable in the linear direction in conjunction with the displacement roller and integrated with at least one of the bearings, and a displacement sensor operatively connected to the displacement member and detecting displacement of the displacement member. The thickness of the sheet passing through the nip is determined based on the amount of displacement of the displacement member.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: December 25, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuyoshi Kondo, Hiroshi Fujiwara, Toshikane Nishii, Mizuna Tanaka, Tomoyoshi Yamazaki, Haruyuki Honda
  • Patent number: 8322718
    Abstract: In a recording medium conveyer, a driver drives a feeding member and a conveying member provided downstream from the feeding member in a recording medium conveyance direction independently. A controller stops driving the feeding member when a first time period elapses after a recording medium reaches the conveying member. When a selector judges that the thickness of the recording medium identifies the recording medium as thin paper, the controller does not drive the feeding member after the controller starts driving the conveying member, and when the selector judges that the recording medium has a thickness greater than a thickness of the recording medium that identifies the recording medium as thin paper, the controller restarts driving the feeding member no later than when the controller starts driving the conveying member.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: December 4, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Fujiwara, Mizuna Tanaka, Tomoyoshi Yamazaki, Toshikane Nishii, Kazuyoshi Kondo, Haruyuki Honda
  • Patent number: 8320798
    Abstract: A conveying device conveys a sheet of non-blank recording medium recorded with an image formed in an image forming unit, and includes a container that is detachable and contains a sheet of blank recording medium, a feeding unit that feeds the blank recording medium from the container, and a recirculating path that leads the non-blank recording medium to the feeding unit. The recirculating path is disposed lateral to the image forming unit. A part of the recirculating path is integrated into the container and forms a reversing path that leads to the feeding unit. At least one of surfaces of the reversing path can be exposed.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: November 27, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Shigeo Nanno, Hiroshi Fujiwara, Yasuhide Ohkubo, Ippei Kimura, Yoshihide Ohta, Tomoyoshi Yamazaki, Masafumi Takahira
  • Publication number: 20120259123
    Abstract: The present invention relates to a compound represented by the formula (I): or a pharmaceutically acceptable salt thereof, a medical composition containing the same, and a medical composition for the treatment or prophylaxis of respiratory diseases or glaucoma.
    Type: Application
    Filed: December 24, 2010
    Publication date: October 11, 2012
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Ryo Iwamura, Masayuki Tanaka, Tetsushi Katsube, Nobuhiko Shibakawa, Manabu Shigetomi, Eiji Okanari, Tomoko Kanda, Yasunori Tokunaga, Hiroshi Fujiwara