Patents by Inventor Hiroyuki Tomita

Hiroyuki Tomita 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: 20110169973
    Abstract: The invention includes a vibration reduction mechanism, a vibration detecting part, a reference signal generating part, a target drive position calculating part, and a driving part. The vibration reduction mechanism reduces a vibration of a subject image. The vibration detecting part outputs a vibration detection signal. The reference signal generating part estimates a reference signal of the vibration detection part. The target drive position calculating part obtains a vibration component from a difference between the vibration detection signal and the estimated reference signal to obtain a target position to which the vibration reduction mechanism is driven. The driving part controls the vibration reduction mechanism to follow the target position. Particularly, the reference signal generating part corrects the reference signal according to a motion signal obtained from a captured image.
    Type: Application
    Filed: March 18, 2011
    Publication date: July 14, 2011
    Applicant: NIKON CORPORATION
    Inventors: Hiroyuki Tomita, Kazutoshi Usui, Tsuyoshi Matsumoto
  • Patent number: 7962441
    Abstract: An air conditioner for a vehicle includes an air-conditioning unit for supplying conditioned air into a vehicle, an information acquiring unit for acquiring state information indicating a state of the vehicle, a control information modifying unit having at least one probabilistic model for calculating the probability that a passenger will perform a predetermined setting operation, calculating the probability by inputting the state information into the at least one probabilistic model, and modifying the setting information or the control information related to the predetermined setting operation according to the probability so that the predetermined setting operation is performed, and an air-conditioning control unit for controlling the air-conditioning unit according to the modified setting information or modified control information.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: June 14, 2011
    Assignee: Denso Corporation
    Inventors: Yasufumi Kojima, Hiroshi Takeda, Hiroyuki Tomita
  • Publication number: 20110133660
    Abstract: A lighting system includes: plural light emitting chips (52) each having a blue LED; a substrate (51) on which the plural blue LEDs are connected in a series with polarities thereof aligned, thereby to form a light emitting diode array; a shade (12) to which the substrate (51) is attached, the shade (12) being electrically grounded; an AC-DC conversion device for converting alternating current supplied from an AC power supply through first and second feed lines into direct current and supplying the direct current to the light emitting diode array; a conductive sheet disposed between the substrate (51) and the shade (12), the sheet being electrically insulated from the substrate (51) and the shade (12) and being electrically connected to the first feed line; and a switch for electrically connecting and disconnecting the second feed line.
    Type: Application
    Filed: July 2, 2009
    Publication date: June 9, 2011
    Applicant: Showa Denko K.K.
    Inventors: Hiroyuki Tomita, Takeo Watanabe
  • Patent number: 7932926
    Abstract: The invention includes a vibration reduction mechanism, a vibration detecting part, a reference signal generating part, a target drive position calculating part, and a driving part. The vibration reduction mechanism reduces a vibration of a subject image. The vibration detecting part outputs a vibration detection signal. The reference signal generating part estimates a reference signal of the vibration detection part. The target drive position calculating part obtains a vibration component from a difference between the vibration detection signal and the estimated reference signal to obtain a target position to which the vibration reduction mechanism is driven. The driving part controls the vibration reduction mechanism to follow the target position. Particularly, the reference signal generating part corrects the reference signal according to a motion signal obtained from a captured image.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: April 26, 2011
    Assignee: Nikon Corporation
    Inventors: Hiroyuki Tomita, Kazutoshi Usui, Tsuyoshi Matsumoto
  • Patent number: 7902790
    Abstract: A slip frequency is estimated from a current instruction or detected currents in an induction motor. Acceleration impossibility in an induction motor drive unit is determined, when the slip frequency exceeds the maximum torque generating slip frequency for the predetermined interval or the time integrating result exceeds a predetermined value; when the q-axis magnetic flux exceeds the maximum torque generating q-axis magnetic flux or exceeds for a predetermined interval; when the estimated rotational speed is under a predetermined value; when the rotational speed variation rate is negative; and when the rotational speed instruction value or the estimated rotational speed is equal to or smaller than a predetermined value. An induction motor drive system and an elevating system including the induction motor drive unit are also disclosed.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: March 8, 2011
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Yoichiro Arakawa, Koichiro Nagata, Hiroyuki Tomita
  • Patent number: 7849703
    Abstract: In a vehicle air conditioner, when a passenger set temperature of a vehicle compartment is changed through an operation portion by a passenger, a storage portion updates a value of a control set temperature corresponding to a predetermined point of a detection area at a time of the changing operation to a value of the changed passenger set temperature, and stores therein the value of the updated temperature. Furthermore, when the detection point is not any one of the predetermined points, a control portion interpolates and calculates a control set temperature corresponding to the detection point from the control set temperature stored in the predetermined point of the detection area and the control set temperature stored in the predetermined point of a surrounding area around the detection area, and then controls the air-conditioning state in the vehicle compartment based on the interpolated and calculated control set temperature.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: December 14, 2010
    Assignee: Denso Corporation
    Inventors: Hiroshi Takeda, Hiroyuki Tomita, Yasufumi Kojima
  • Patent number: 7734422
    Abstract: An oligonucleotide array comprising an array of multiple oligonucleotides with different base sequences fixed onto known and separate positions on a support substrate, wherein said oligonucleotides are biological stress related genes or complementary sequence chains to the said genes, and the said oligonucleotides are classified according to their gene functions, wherein the fixation region on the support substrate is divided into the said classification.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: June 8, 2010
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Kazuhito Rokutan, Hiroyuki Tomita, Toshiro Saito
  • Publication number: 20100128138
    Abstract: An imaging device includes a main photography means for photographing a photographic subject and acquires a photographic image, a preparatory image acquisition means for performing preparatory photography before or after the main photography means acquires the photographic image and acquiring preparatory images, a photographic information acquisition means for acquiring photographic information related to a circumstance of photography when the preparatory images are acquired by the preparatory image acquisition means, and a recording means for recording the photographic information and the photographic image upon a recording medium in mutual correlation.
    Type: Application
    Filed: June 5, 2008
    Publication date: May 27, 2010
    Applicant: Nikon Corporation
    Inventors: Keiichi Nitta, Yuko Hattori, Go Watanabe, Hiroyuki Tomita, Hideo Hoshuyama, Kenji Suzuki, Saeko Samejima, Mikiya Tanaka, Setsu Mitsuhashi, Takeshi Nishi
  • Publication number: 20100110404
    Abstract: The optical element supporting device of the present invention includes a first supporting member that supports the optical element, a second supporting member that supports the first supporting member at a plurality of locations, a plate spring fastened to the first supporting member and having a plate thickness extending in the optical axis direction of the optical element, and a force supplying unit, which is provided on the first supporting member, configured to provide a force in the optical axis direction applied to the plate spring at a location different from the plurality of locations, wherein the force supplying unit elastically deforms the first supporting member by receiving the reactive force generated by the force applied to the plate spring to thereby adjust the position of the optical element.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 6, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hiroyuki Tomita
  • Patent number: 7711253
    Abstract: A blur correction camera system includes a blur correction lens driven based upon the vibration detection signal detected by an angular velocity sensor, that corrects an image blur, a point-image function computing unit that computes a point spread function, and an image restoration computing unit that corrects an image blur by executing image restoration through image processing on a captured image by using the point spread function. The image blur that cannot be completely corrected by the blur correction lens is further corrected through image restoration so as to obtain a high quality image.
    Type: Grant
    Filed: December 25, 2003
    Date of Patent: May 4, 2010
    Assignee: Nikon Corporation
    Inventors: Hiroyuki Tomita, Kazutoshi Usui, Kenichi Kitano, Yoshiko Ono
  • Patent number: 7671558
    Abstract: The present invention provides an induction motor controller which includes: a circuit for generating a d-axis current reference signal from a d-axis current command value and a periodically varying periodic signal; a d-axis current controller for controlling a d-axis motor current flowing through an induction motor to be controlled to match the d-axis current reference signal; parameter determining means for calculating and determining a motor parameter of the induction motor based on a deviation of the d-axis motor current from the d-axis current reference signal, and controlling a voltage applied to the induction motor using a compensation voltage calculated from the calculated and determined motor parameter, in which a control parameter for controlling the induction motor is set based on the calculated and determined motor parameter.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: March 2, 2010
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Kouki Yamamoto, Toshiaki Okuyama, Hiroyuki Tomita, Yoshitaka Iwaji, Koichiro Nagata
  • Publication number: 20100033583
    Abstract: The invention includes a vibration reduction mechanism, a vibration detecting part, a reference signal generating part, a target drive position calculating part, and a driving part. The vibration reduction mechanism reduces a vibration of a subject image. The vibration detecting part outputs a vibration detection signal. The reference signal generating part estimates a reference signal of the vibration detection part. The target drive position calculating part obtains a vibration component from a difference between the vibration detection signal and the estimated reference signal to obtain a target position to which the vibration reduction mechanism is driven. The driving part controls the vibration reduction mechanism to follow the target position. Particularly, the reference signal generating part corrects the reference signal according to a motion signal obtained from a captured image.
    Type: Application
    Filed: October 14, 2009
    Publication date: February 11, 2010
    Applicant: Nikon Corporation
    Inventors: Hiroyuki Tomita, Kazutoshi Usui, Tsuyoshi Matsumoto
  • Patent number: 7596307
    Abstract: A blur correction camera system includes a blur correction lens driven based upon the vibration detection signal detected by an angular velocity sensor, that corrects an image blur, a point-image function computing unit that computes a point spread function, and an image restoration computing unit that corrects an image blur by executing image restoration through image processing on a captured image by using the point spread function. The image blur that cannot be completely corrected by the blur correction lens is further corrected through image restoration so as to obtain a high quality image.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: September 29, 2009
    Assignee: Nikon Corporation
    Inventors: Hiroyuki Tomita, Kazutoshi Usui, Kenichi Kitano, Yoshiko Ono
  • Patent number: 7545116
    Abstract: An object of the present invention is to provide a driver for an induction motor which performs an operation at an acceleration suitable for the magnitude of a load and is excellent in efficiency, without an acceleration failure. The driver for an induction motor includes a slip frequency estimate value arithmetic operation section 15 for arithmetically operating a slip frequency ?s^ of an induction motor 12, and a maximum torque generation slip arithmetic operation section 16 for arithmetically operating a slip frequency ?smax at which a maximum torque is generated. When the slip frequency ?s^ exceeds a predetermined value ?smaxTH (=0.9 ?smax, etc.) corresponding to the slip frequency ?smax at which the maximum torque is generated, a speed change rate arithmetic operation section 17 and a speed change rate correcting section 18 reduce a rate of increase in a speed command ?r*.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: June 9, 2009
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Koichiro Nagata, Toshiaki Okuyama, Kouki Yamamoto, Hiroyuki Tomita
  • Patent number: 7542088
    Abstract: A used viewfinder determination section determines whether an optical viewfinder is being used or if a liquid crystal monitor is being used, based upon signals from an eye approach detection section. A blur correction operation changing section changes a blur correction operation by a blur correction lens in accordance with determination results from the used viewfinder determination section. When it is determined that the optical viewfinder is not being used, a blur correction operation using the blur correction lens is not carried out.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: June 2, 2009
    Assignee: Nikon Corporation
    Inventors: Masami Takemoto, Hiroyuki Tomita, Yosuke Kusaka
  • Patent number: 7522188
    Abstract: A vibration reduction apparatus estimates a reference value from a vibration detection signal, and determines a target drive position from a difference between the vibration detection signal and the estimated reference value. A driving unit drives a vibration reduction mechanism so that the vibration reduction mechanism makes a follow-up movement to the target drive position. The vibration reduction apparatus has a feedback path for feeding back a motion signal to the reference value. A feedback control unit for changing the feedback amount of the motion signal in accordance with a difference in an analytical condition of the motion signal is provided on the feedback path.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: April 21, 2009
    Assignee: Nikon Corporation
    Inventors: Hiroyuki Tomita, Tsuyoshi Matsumoto
  • Publication number: 20090002543
    Abstract: A camera system includes: a focus detection controller that is capable of performing control for an imaging optics according to a plurality of focus detection systems; and a focusing controller that controls focusing of the imaging optics. And the focus detection controller transmits, to the focusing controller, identification information that specifies which of the plurality of focus detection systems is performed.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 1, 2009
    Applicant: NIKON CORPORATION
    Inventors: Hiroyuki Tomita, Noriaki Nakajima
  • Publication number: 20080315824
    Abstract: A slip frequency is estimated from a current instruction or detected currents in an induction motor. Acceleration impossibility in an induction motor drive unit is determined, when the slip frequency exceeds the maximum torque generating slip frequency for the predetermined interval or the time integrating result exceeds a predetermined value; when the q-axis magnetic flux exceeds the maximum torque generating q-axis magnetic flux or exceeds for a predetermined interval; when the estimated rotational speed is under a predetermined value; when the rotational speed variation rate is negative; and when the rotational speed instruction value or the estimated rotational speed is equal to or smaller than a predetermined value. An induction motor drive system and an elevating system including the induction motor drive unit are also disclosed.
    Type: Application
    Filed: June 19, 2008
    Publication date: December 25, 2008
    Inventors: Yoichiro ARAKAWA, Koichiro NAGATA, Hiroyuki TOMITA
  • Publication number: 20080175574
    Abstract: A blur correction camera system includes a blur correction lens driven based upon the vibration detection signal detected by an angular velocity sensor, that corrects an image blur, a point-image function computing unit that computes a point spread function, and an image restoration computing unit that corrects an image blur by executing image restoration through image processing on a captured image by using the point spread function. The image blur that cannot be completely corrected by the blur correction lens is further corrected through image restoration so as to obtain a high quality image.
    Type: Application
    Filed: March 12, 2008
    Publication date: July 24, 2008
    Applicant: NIKON CORPORATION
    Inventors: Hiroyuki Tomita, Kazutoshi Usui, Kenichi Kitano, Yoshiko Ono
  • Publication number: 20080169783
    Abstract: The present invention provides an induction motor controller which includes: a circuit for generating a d-axis current reference signal from a d-axis current command value and a periodically varying periodic signal; a d-axis current controller for controlling a d-axis motor current flowing through an induction motor to be controlled to match the d-axis current reference signal; parameter determining means for calculating and determining a motor parameter of the induction motor based on a deviation of the d-axis motor current from the d-axis current reference signal, and controlling a voltage applied to the induction motor using a compensation voltage calculated from the calculated and determined motor parameter, in which a control parameter for controlling the induction motor is set based on the calculated and determined motor parameter.
    Type: Application
    Filed: August 23, 2007
    Publication date: July 17, 2008
    Inventors: KOUKI YAMAMOTO, Toshiaki Okuyama, Hiroyuki Tomita, Yoshitaka Iwaji, Koichiro Nagata