Patents by Inventor Kazushi Yoshikawa
Kazushi Yoshikawa 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).
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Publication number: 20240101192Abstract: In a crawler type work machine, when switching from a pivot turning mode to a straight travel mode or a slow turning mode, a controller is configured to maintain a rotation speed of the turning motor until after a first timing at which the inside steering clutch begins partial engagement.Type: ApplicationFiled: December 15, 2021Publication date: March 28, 2024Inventors: Takeshi YOSHIKAWA, Hiroaki TAKESHIMA, Naoya AKIYAMA, Kazushi NAKATA, Osamu YATSUDA, Shinichi OTAKA, Yuji NAMEKI, Ryoichi NAGASAKA, Takaomi KOMURA
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Publication number: 20210315460Abstract: Disclosed is an optical dental caries diagnostic device and an optical diagnostic device for periodontal diseases that can quantitatively diagnose progression of dental caries or periodontal diseases, and an optical diagnostic method including the same. Also disclosed is a diagnostic system including such diagnostic devices. The optical dental caries diagnostic device (1) has a probe (30) having optical transparency and a taper shape with an end portion to be in contact with a tooth, a light source (20) emitting light to the probe (30), and a light receiving element (40) receiving light from the end portion of the probe (30).Type: ApplicationFiled: October 9, 2019Publication date: October 14, 2021Inventors: Hisanao HAZAMA, Kunio AWAZU, Kazushi YOSHIKAWA
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Patent number: 9423095Abstract: A vehicular lamp includes a light source, a cooling fan configured to cool the light source, a light source power supply module configured to drive the light source for emission of light, and a control module configured to execute an abnormal rotation detection of the cooling fan and to control the light source power supply module so that the quantity of light emitted from the light source is reduced in response to a detection of abnormal rotation.Type: GrantFiled: February 20, 2014Date of Patent: August 23, 2016Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Kazushi Yoshikawa, Tomokazu Suzuki, Takanori Namba, Toshiyuki Tsuchiya, Masato Watanabe
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Patent number: 9205030Abstract: Provided are a hard tissue restoration material, which is excellent in hard tissue restoration ability, extremely effective in promoting recalcification of dental enamel, and excellent in protection properties and aesthetic properties, and a hard tissue restoration method. The hard tissue restoration material according to the present invention is a biocompatible ceramic film with flexibility and pliability that is obtained, for example, by immersing a substrate, having the biocompatible ceramic film formed thereon, in a solvent, which does not dissolve the biocompatible ceramic but dissolves at least a portion of the substrate, to dissolve or separate the substrate. Also, with the hard tissue restoration method according to the present invention, the hard tissue restoration material according to the present invention is bonded to or wound around a hard tissue defect site.Type: GrantFiled: January 29, 2013Date of Patent: December 8, 2015Assignee: KINKI UNIVERSITYInventors: Shigeki Hontsu, Hiroaki Nishikawa, Masanobu Kusunoki, Kazushi Yoshikawa, Kazuyo Yamamoto
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Publication number: 20140241001Abstract: A vehicular lamp includes a light source, a cooling fan configured to cool the light source, a light source power supply module configured to drive the light source for emission of light, and a control module configured to execute an abnormal rotation detection of the cooling fan and to control the light source power supply module so that the quantity of light emitted from the light source is reduced in response to a detection of abnormal rotation.Type: ApplicationFiled: February 20, 2014Publication date: August 28, 2014Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Kazushi YOSHIKAWA, Tomokazu SUZUKI, Takanori NAMBA, Toshiyuki TSUCHIYA, Masato WATANABE
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Publication number: 20130236856Abstract: Provided are a hard tissue restoration material, which is excellent in hard tissue restoration ability, extremely effective in promoting recalcification of dental enamel, and excellent in protection properties and aesthetic properties, and a hard tissue restoration method. The hard tissue restoration material according to the present invention is a biocompatible ceramic film with flexibility and pliability that is obtained, for example, by immersing a substrate, having the biocompatible ceramic film formed thereon, in a solvent, which does not dissolve the biocompatible ceramic but dissolves at least a portion of the substrate, to dissolve or separate the substrate. Also, with the hard tissue restoration method according to the present invention, the hard tissue restoration material according to the present invention is bonded to or wound around a hard tissue defect site.Type: ApplicationFiled: January 29, 2013Publication date: September 12, 2013Applicant: KINKI UNIVERSITYInventors: Shigeki HONTSU, Hiroaki NISHIKAWA, Masanobu KUSUNOKI, Kazushi YOSHIKAWA, Kazuyo YAMAMOTO
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Patent number: 8401318Abstract: Generation of evaluation value information about a motion vector, extraction of candidates for the motion vector on the basis of the evaluation value information, and determination of the motion vector to be allocated from the candidates for the motion vector are performed. The possibility that a reference pixel a in a second frame is a candidate for a motion from a target point in a first frame is evaluated on the basis of pixel-value correlation information to generate an evaluation value table. A constant area is adaptively set around each of the target pixel and the reference pixel corresponding to each extracted candidate for the motion vector in accordance with the state of the continuity of a constant pixel value. The motion vector from the first frame to the second frame is allocated on the basis of the result of comparison between values calculated for the constant areas.Type: GrantFiled: July 23, 2009Date of Patent: March 19, 2013Assignee: Sony CorporationInventors: Hiroki Tetsukawa, Tetsujiro Kondo, Kenji Takahashi, Kazushi Yoshikawa
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Patent number: 8064522Abstract: A device and method that serve to generate an accurate evaluation-value table and to detect a correct motion vector are provided. A weight coefficient W is calculated on the basis of correlation information of a representative-point pixel and flag-correlation information based on flag data corresponding to pixel-value difference data between a subject pixel and a pixel in a neighboring region of the subject pixel. A confidence index is generated on the basis of the weight coefficient W calculated and an activity A as an index of complexity of image data, or a confidence index is generated on the basis of similarity of motion between the representative point and a pixel neighboring the representative point, and an evaluation value corresponding to the confidence index is accumulated to generate an evaluation-value table. Furthermore, correlation is checked on the basis of positions or pixel values of feature pixels neighboring the subject pixel to determine a motion vector.Type: GrantFiled: August 28, 2006Date of Patent: November 22, 2011Assignee: Sony CorporationInventors: Tetsujiro Kondo, Kenji Takahashi, Kazushi Yoshikawa, Takanori Ishikawa
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Patent number: 7836476Abstract: A disc drive, camera and a server are in communication with one another via a communication network. The disc drive plays back a disc in order to reproduce a recorded picture, whereby the picture and a real-time world view supplied from the camera are combined based on an address table managed by the server to produce a synthetic picture data. For example, a recorded picture reproduced from the disc and real-time world view taken by the camera are combined to synthesize a picture. Thus, content recorded in a recording medium can be used to produce the synthetic picture data.Type: GrantFiled: October 30, 2001Date of Patent: November 16, 2010Assignee: Sony CorporationInventors: Kazushi Yoshikawa, Kazuyuki Marukawa
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Patent number: 7814039Abstract: The present invention relates to a signal processing device which learns operations made by a user without the user knowing, and which can perform processing optimal to the user based on the learning results. At a learning unit 22, operating signals supplied according to user operations are monitored, and judgment is made whether or not these can be used for learning. In the event that the operating signals are learning operating signals which can be used for learning, the learning unit 22 learns a correction norm which is the norm for correcting input signals, based on the learning operating signals. On the other hand, at a correcting unit 21, post-correction signals, wherein the input signals are corrected based on the correction norm obtained by learning, are output as output signals. The present invention can be applied to an NR (Noise Reduction) circuit which removes noise.Type: GrantFiled: February 21, 2002Date of Patent: October 12, 2010Assignee: Sony CorporationInventors: Tetsujiro Kondo, Kazushi Yoshikawa, Tetsushi Kokubo, Hisakazu Shiraki, Michimasa Obana, Hideo Kasama, Masanori Kanemaru
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Patent number: 7800624Abstract: A memory device, a signal processing apparatus, and an image signal processing apparatus and signal processing methods configured to perform matching processing with a small amount of calculation and accurately detecting motion vectors, provided with a memory for converting by using a feature including a pixel value in a certain block range having a focused pixel at its center as an address based on information of a reference frame stored in a second frame memory; and a matching portion for reading storage information of the ME memory by using a feature of a focused pixel included in information of a current frame supplied from a first frame memory as a feature address, calculating a distance between the focused pixel in the current frame and a feature address (position coordinates) read from the ME memory, and detecting differential coordinates based on position information having the minimum distance from a plurality of candidates as motion vectors of the focused pixel.Type: GrantFiled: July 30, 2003Date of Patent: September 21, 2010Assignee: Sony CorporationInventors: Tetsujiro Kondo, Kazushi Yoshikawa, Junichi Ishibashi, Seiji Wada
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Patent number: 7684635Abstract: A signal processing device and signal processing method, and program and recording medium, whereby images and the like closer approximating real world signals can be obtained. An object which is moving at a movement amount v in the horizontal direction is photographed, and an image wherein the object is blurred is input into a signal processing device. A continuity setting unit supplies the movement amount v of the object to an actual world estimating unit as continuity information. The actual world estimating unit estimates a pixel value for an image without blurring, by computing a normal equation comprising a model equation which models the relation of the pixel values in the input image and the pixel values in an image without blurring according to the movement amount v, and a constraint condition expression which constrains between the pixels in an image without blurring, and supplies this to an image generating unit.Type: GrantFiled: June 15, 2004Date of Patent: March 23, 2010Assignee: Sony CorporationInventors: Tetsujiro Kondo, Tetsushi Kokubo, Kazushi Yoshikawa, Hisakazu Shiraki, Michimasa Obana, Hideo Kasama, Masanori Kanemaru
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Patent number: 7672526Abstract: The present invention relates to a signal processing device and signal processing method, and program and recording medium, whereby images and the like closer approximating real world signals can be obtained. With regard to an input image of dimensions fewer than the dimensions of actual world light signals, wherein actual world light signals have been projected and a part of the continuity of the actual world light signals has been lost, actual world signals are estimated at an actual world signal estimating unit 10003 from the input image within a processing region set at a processing region setting unit 10001, corresponding to continuity set at a continuity setting unit 10002. On the other hand, information relating to at least one of processing region, continuity, and actual world signals, is supplied from a user I/F 10006 to the processing region setting unit 10001, continuity setting unit 10002, or actual world signal estimating unit 10003, according to user operations.Type: GrantFiled: June 15, 2004Date of Patent: March 2, 2010Assignee: Sony CorporationInventors: Tetsujiro Kondo, Kazushi Yoshikawa, Tetsushi Kokubo, Hisakazu Shiraki, Michimasa Obana, Masanori Kanemaru, Hideo Kasama
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Patent number: 7672536Abstract: A signal processing device, signal processing method, and program and recording medium which provide images and the like closer approximating real world signals. The signal processing device includes a processing region setting unit, a motion vector setting unit, a model generator, a normal equation generator, a weighting change unit, and a real world estimating unit.Type: GrantFiled: January 24, 2007Date of Patent: March 2, 2010Assignee: Sony CorporationInventors: Tetsujiro Kondo, Kazushi Yoshikawa, Tetsushi Kokubo, Hisakazu Shiraki, Michimasa Obana, Masanori Kanemaru, Hideo Kasama
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Publication number: 20100026903Abstract: A motion vector detection device includes: an evaluation value information creation unit creating, from correlation information of a target pixel in one frame and a reference pixel in another frame in moving image data including frames, evaluation value information evaluating the possibility that the reference pixel is a candidate for the destination of motion from the target pixel; a motion vector extraction unit extracting motion vector candidates of each of the pixels in a frame by using the evaluation value information, comparing, for the extracted candidates, the pixels in an area around the target pixel and the pixels in the area around the reference pixel, evaluating the candidate vectors of the evaluation value information by using the result of comparison in the entire area, and extracting motion vectors having a high evaluation value as candidates; and a motion vector determination unit determining a motion vector among the extracted motion vectors.Type: ApplicationFiled: July 28, 2009Publication date: February 4, 2010Applicant: Sony CorporationInventors: Hiroki TETSUKAWA, Tetsujiro Kondo, Kenji Takahashi, Kazushi Yoshikawa, Naoki Takeda, Takanori Ishikawa
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Publication number: 20100027900Abstract: Generation of evaluation value information about a motion vector, extraction of candidates for the motion vector on the basis of the evaluation value information, and determination of the motion vector to be allocated from the candidates for the motion vector are performed. The possibility that a reference pixel a in a second frame is a candidate for a motion from a target point in a first frame is evaluated on the basis of pixel-value correlation information to generate an evaluation value table. A constant area is adaptively set around each of the target pixel and the reference pixel corresponding to each extracted candidate for the motion vector in accordance with the state of the continuity of a constant pixel value. The motion vector from the first frame to the second frame is allocated on the basis of the result of comparison between values calculated for the constant areas.Type: ApplicationFiled: July 23, 2009Publication date: February 4, 2010Applicant: Sony CorporationInventors: Hiroki Tetsukawa, Tetsujiro Kondo, Kenji Takahashi, Kazushi Yoshikawa
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Patent number: 7634111Abstract: An image processing apparatus and an image processing method capable of performing matching processing with a small amount of calculation and highly accurately detecting a motion vector, etc.Type: GrantFiled: July 30, 2003Date of Patent: December 15, 2009Assignee: Sony CorporationInventors: Tetsujiro Kondo, Junichi Ishibashi, Kazushi Yoshikawa, Seiji Wada
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Patent number: 7551226Abstract: An image signal conversion apparatus for converting a SD signal (525i) into a HD signal (525p or the like). In the image signal conversion section, the SD signal is converted into the HD signal, and the image is displayed on the display section. A class code CL indicating a class of a subject pixel of the HD signal is obtained by detecting a space class and a motion class from tap pixel data corresponding to the subject pixel of HD signal which is selectively fetched from a SD signal. The controller loads coefficient data of each class according to the selected resolution into the coefficient memory from the information memory bank when the user selects the resolution. In the calculation circuit pixel data of the subject pixel of the HD signal is calculated using an estimating equation based on the tap data xi corresponding to the subject pixel of the HD signal selectively fetched from the SD signal in the tap selection circuit and the coefficient data read in class code CL from the coefficient memory.Type: GrantFiled: September 30, 2005Date of Patent: June 23, 2009Assignee: Sony CorporationInventors: Tetsujiro Kondo, Kenji Takahashi, Kazushi Yoshikawa
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Publication number: 20090141802Abstract: A motion vector detecting apparatus includes an evaluation value information forming unit, a motion vector extracting unit, and a motion vector deciding unit. The evaluation value information forming unit is configured to form evaluation value information on motion vectors evaluating that a reference pixel is a potential movement destination candidate for a focus pixel. The evaluation value information on the motion vectors is generated from pixel value correlation information that has been one of generated and limited using a movement direction of the pixels. The motion vector extracting unit is configured to extract motion vectors as candidates from a plurality of motion vectors based on the evaluation value information formed by the evaluation value information forming unit. The motion vector deciding unit is configured to decide motion vectors to be assigned to pixels in a frame from the motion vectors extracted as the candidates by the motion vector extracting unit.Type: ApplicationFiled: October 21, 2008Publication date: June 4, 2009Applicant: Sony CorporationInventors: Hiroki TETSUKAWA, Tetsujiro KONDO, Kenji TAKAHASHI, Kazushi YOSHIKAWA, Naoki TAKEDA, Takanori ISHIKAWA, Takashi HORISHI
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Patent number: 7512285Abstract: A signal processing device, signal processing method, and program and recording medium which provide images and the like closer approximating real world signals. The signal processing device includes a processing region setting unit, a movement vector setting unit, a model generator, a normal equation generator, an activity detector, a weighting change unit, and a real world estimating unit.Type: GrantFiled: January 24, 2007Date of Patent: March 31, 2009Assignee: Sony CorporationInventors: Tetsujiro Kondo, Tetsushi Kokubo, Kazushi Yoshikawa, Hisakazu Shiraki, Michimasa Obana, Hideo Kasama, Masanori Kanemaru