Patents by Inventor Michio Oikawa

Michio Oikawa 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: 20250013765
    Abstract: It is possible to exchange highly confidential information between information systems of which networks are separated from each other. An information transmission system includes: an information output device that stores information to be shared, generates concealed data by compressing and concealing the information to be shared using a predetermined concealment method, and generates a two-dimensional barcode loaded with the concealed data but not loaded with concealment information indicating the concealment method; and an information input system that stores the concealment method in advance, decodes the two-dimensional barcode to acquire the concealed data, and decrypts the concealed data based on the concealment method.
    Type: Application
    Filed: February 6, 2023
    Publication date: January 9, 2025
    Inventors: Michio OIKAWA, Yoshiharu IWATA, Hikari NISHIMURA
  • Patent number: 9491443
    Abstract: An image display method and an image display apparatus to solve the three-dimensional cueing confliction problem of the maximum intensity projection in the stereoscopic display method, while enabling users to select and render with emphasis the maximum intensity projection of the objects of interest, so that to realize the stereoscopic display. A three-dimensional surface which has equal distance to a sight-point is utilized as a reference surface, and the distances from all of the local maximum intensity points to this reference surface are calculated, then a weighting factor of each local maximum intensity point is calculated according to the distances and predetermined weighting function. After, the values of local maximum intensity points are adjusted according to the obtained weighting factors, and finally, the maximum intensity projection value is produced by synthesizing all of the adjusted values of the local maximum intensity points.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: November 8, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Michio Oikawa, Hanae Yoshida, Tomohiro Nagao, Jiangtao Gao, Yingjie Han, Xingdong Sheng
  • Patent number: 9478021
    Abstract: An image display device comprises a first control part, a first storage, and a display part. The first storage holds rendering elements, each of which includes a combination of rendering target information and rendering setting information, and a priority order assigned to each rendering element. The rendering target information includes data identification information which designates three-dimensional data of a rendering target and mask information which designates a rendering target area. The rendering setting information includes information which designates a two-dimensional image rendering method and rendering parameter. The first control part determines, based on the rendering setting information and the mask information, whether executing priority processing is necessary.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: October 25, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Miho Isokawa, Michio Oikawa, Hiroki Taniguchi
  • Patent number: 9437037
    Abstract: In the present invention, when a 3D medical image is displayed on a 3D display, the position of accompanying information displayed at the same time is appropriately controlled. The position of the accompanying information in the coordinate system of a 3D signal value that is an item to be drawn is computed, and said position is saved in a storage unit.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: September 6, 2016
    Assignee: HITACHI MEDICAL CORPORATION
    Inventors: Miho Isokawa, Michio Oikawa, Hiroki Taniguchi, Hanae Yoshida
  • Patent number: 9336587
    Abstract: Included is a multiple resolution image generating unit which applies a plurality of noise removing filters to a semiconductor circuit pattern image and generates a multiple resolution image, a multiple resolution differential image generating unit which generates a multiple resolution differential image from a difference of images between hierarchies of the multiple resolution image, and a contour extracting unit which extracts a contour of the semiconductor circuit pattern based on an intensity signal of the semiconductor circuit pattern image. The contour extracting unit calculates an intensity signal level upon extracting a contour of the semiconductor circuit pattern from the multiple resolution image by using an image signal of the multiple resolution differential image, and extracts a contour of the semiconductor circuit pattern based on the calculated intensity signal level.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: May 10, 2016
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takuma Shibahara, Michio Oikawa, Kei Sakai, Satoru Yamaguchi
  • Patent number: 9317716
    Abstract: An information providing apparatus for collecting data including personal information and distributing the data to a user terminal performs anonymization processing for converting data, which an individual who is an owner of personal information allows to use, into data with which the individual cannot be identified using multiple parameters, thus generating multiple anonymized data protecting the, privacy of the individual. Since each of the anonymized data is anonymized using a different parameter, the amount of information of each of the anonymized data is different. Then, when a request is received from a user terminal, anonymized data that can be provided to the user are identified from among multiple generated anonymized data on the basis of the reliability of the user who uses the user terminal.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: April 19, 2016
    Assignee: HITACHI, LTD.
    Inventors: Michio Oikawa, Yoshinori Sato, Keisei Fujiwara, Kunihiko Harada, Yumiko Yokohari, Tatsuya Nakae
  • Patent number: 9275453
    Abstract: An image processing device includes an extraction process executing unit that extracts a 3-dimensional initial region satisfying a predetermined condition from the volume data, a region correction process executing unit that extracts a 3-dimensional corrected region by performing a correction process on the initial region, and a visualization process executing unit that generates a plurality of cross-sectional diagrams of the 3-dimensional image from the volume data and outputs at least some of the plurality of cross-sectional diagrams. When the initial region is displayed, one or more cross-sectional diagrams having voxels in the initial region are outputted so that the voxels included in the initial region are distinguishable from other regions. When the corrected region is displayed, one or more cross-sectional diagrams having voxels in the corrected region are outputted so that the voxels included in the corrected region are distinguishable from other regions.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: March 1, 2016
    Assignee: HITACHI, LTD.
    Inventors: Hanae Yoshida, Michio Oikawa
  • Publication number: 20150109304
    Abstract: In the present invention, when a 3D medical image is displayed on a 3D display, the position of accompanying information displayed at the same time is appropriately controlled. The position of the accompanying information in the coordinate system of a 3D signal value that is an item to be drawn is computed, and said position is saved in a storage unit.
    Type: Application
    Filed: April 12, 2013
    Publication date: April 23, 2015
    Applicant: Hitachi Medical Corporation
    Inventors: Miho Isokawa, Michio Oikawa, Hiroki Taniguchi, Hanae Yoshida
  • Patent number: 8959461
    Abstract: A pattern measurement device includes: a storage section storing mask edge data of a circuit pattern and image data obtained by imaging the circuit pattern; an SEM contour extracting section receiving the image data, SEM contour of the circuit pattern, and cause an exposure simulator to generate estimated SEM contour data of an estimated SEM contour on the basis of the mask edge data and SEM contour data of the extracted SEM contour; a shape classifying section receiving the mask edge data, the SEM contour data, and the estimated contour data to classify the SEM contour data and the estimated SEM contour data into a one-dimensionally shaped contour and a two-dimensionally shaped contour; and an SEM contour sampling section receiving the SEM contour data and the estimated SEM contour data to sample the SEM contour data on the basis of types of the one-dimensionally and two-dimensionally shaped contours.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: February 17, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takuma Shibahara, Michio Oikawa, Yutaka Hojo, Hitoshi Sugahara, Hiroyuki Shindo
  • Patent number: 8942464
    Abstract: The present invention provides a pattern measuring apparatus (600) that: acquires the image contour of a circuit pattern formed by transferring design data; classifies the acquired image contour into shape structures; calculates normal vectors for each shape structure; maps the shape structures to the image contour; uses at least one normal direction for each shape structure to stabilize the normal directions to the image contour; and uses the normal vectors for each shape structure to determine the position of a SEM contour.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: January 27, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takuma Shibahara, Tsuyoshi Minakawa, Michio Oikawa, Yutaka Hojo, Hitoshi Sugahara, Hiroyuki Shindo
  • Publication number: 20140351946
    Abstract: An information providing apparatus for collecting data including personal information and distributing the data to a user terminal performs anonymization processing for converting data, which an individual who is an owner of personal information allows to use, into data with which the individual cannot be identified using multiple parameters, thus generating multiple anonymized data protecting the, privacy of the individual. Since each of the anonymized data is anonymized using a different parameter, the amount of information of each of the anonymized data is different. Then, when a request is received from a user terminal, anonymized data that can be provided to the user are identified from among multiple generated anonymized data on the basis of the reliability of the user who uses the user terminal.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Applicant: HITACHI, LTD.
    Inventors: Michio OIKAWA, Yoshinori SATO, Keisei FUJIWARA, Kunihiko HARADA, Yumiko YOKOHARI, Tatsuya NAKAE
  • Publication number: 20140286551
    Abstract: It is necessary to provide a technology for simply and efficiently performing manual adjustment on a 3-dimensional region of interest automatically extracted from volume data. An image processing device includes an extraction process executing unit that extracts a 3-dimensional initial region satisfying a predetermined condition from the volume data; a region correction process executing unit that extracts a 3-dimensional corrected region by performing a correction process on the initial region; and a visualization process executing unit that generates a plurality of cross-sectional diagrams of the 3-dimensional image from the volume data and outputs at least some of the plurality of cross-sectional diagrams.
    Type: Application
    Filed: October 3, 2011
    Publication date: September 25, 2014
    Inventors: Hanae Yoshida, Michio Oikawa
  • Publication number: 20140224986
    Abstract: A pattern measurement device includes: a storage section storing mask edge data of a circuit pattern and image data obtained by imaging the circuit pattern; an SEM contour extracting section receiving the image data, SEM contour of the circuit pattern, and cause an exposure simulator to generate estimated SEM contour data of an estimated SEM contour on the basis of the mask edge data and SEM contour data of the extracted SEM contour; a shape classifying section receiving the mask edge data, the SEM contour data, and the estimated contour data to classify the SEM contour data and the estimated SEM contour data into a one-dimensionally shaped contour and a two-dimensionally shaped contour; and an SEM contour sampling section receiving the SEM contour data and the estimated SEM contour data to sample the SEM contour data on the basis of types of the one-dimensionally and two-dimensionally shaped contours.
    Type: Application
    Filed: March 23, 2012
    Publication date: August 14, 2014
    Inventors: Takuma Shibahara, Michio Oikawa, Yutaka Hojo, Hitoshi Sugahara, Hiroyuki Shindo
  • Patent number: 8774483
    Abstract: Provided is an image processing apparatus that automatically recognizes a plurality of organs to subsequently visualize the automatic recognition results in an easy-to-understand manner, and facilitate a modification of the displayed recognition results. The image processing apparatus (23) uses an image processing algorithm to perform an image processing of medical image volume data. The image processing apparatus (23) comprises an organ recognition algorithm executing unit (11) that applies an organ recognition algorithm to medical image volume data to generate and output, as an organ recognition result, structural information on the plurality of organs, and a recognition result displaying unit (32) that displays the organ recognition result.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: July 8, 2014
    Assignee: Hitachi Medical Corporation
    Inventors: Hanae Yoshida, Michio Oikawa, Tomohiro Nagao, Hiroki Taniguchi, Takashi Shirahata
  • Publication number: 20140176685
    Abstract: The present invention provides an image display method and an image display apparatus, which solve the three-dimensional cueing confliction problem of the maximum intensity projection in the stereoscopic display method, while enabling users to select and render with emphasis the maximum intensity projection of the objects of interest, so that to realize the stereoscopic display.
    Type: Application
    Filed: June 28, 2011
    Publication date: June 26, 2014
    Applicant: Hitachi Medical Corporation
    Inventors: Michio Oikawa, Hanae Yoshida, Tomohiro Nagao, Jiangtao Gao, Yingjie Han, Xingdong Sheng
  • Publication number: 20140098092
    Abstract: An image display device comprises a first control part, a first storage, and a display part. The first storage holds rendering elements, each of which includes a combination of rendering target information and rendering setting information, and a priority order assigned to each rendering element. The rendering target information includes data identification information which designates three-dimensional data of a rendering target and mask information which designates a rendering target area. The rendering setting information includes information which designates a two-dimensional image rendering method and rendering parameter. The first control part determines, based on the rendering setting information and the mask information, whether executing priority processing is necessary.
    Type: Application
    Filed: April 5, 2012
    Publication date: April 10, 2014
    Applicant: HITACHI MEDICAL CORPORATION
    Inventors: Miho Isokawa, Michio Oikawa, Hiroki Taniguchi
  • Publication number: 20140003703
    Abstract: Included is a multiple resolution image generating unit which applies a plurality of noise removing filters to a semiconductor circuit pattern image and generates a multiple resolution image, a multiple resolution differential image generating unit which generates a multiple resolution differential image from a difference of images between hierarchies of the multiple resolution image, and a contour extracting unit which extracts a contour of the semiconductor circuit pattern based on an intensity signal of the semiconductor circuit pattern image. The contour extracting unit calculates an intensity signal level upon extracting a contour of the semiconductor circuit pattern from the multiple resolution image by using an image signal of the multiple resolution differential image, and extracts a contour of the semiconductor circuit pattern based on the calculated intensity signal level.
    Type: Application
    Filed: April 23, 2013
    Publication date: January 2, 2014
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Takuma SHIBAHARA, Michio OIKAWA, Kei SAKAI, Satoru YAMAGUCHI
  • Publication number: 20130249903
    Abstract: A medical image display device 20 of the present invention includes: a storage unit 34 that saves medical images, ROI information indicating the position of a three-dimensional region in the medical images, and diagnostic information corresponding to the ROI information; and a control unit that stores, for each of the multiple diagnostic information when the multiple diagnostic information exist for the single medical image, a parameter setting used for displaying the medical image at the time each of the diagnostic information is imparted by a user, and a severity indicating the priority of the parameter setting to be used when displaying the medical image on a display unit, in the storage unit 34 in association with each other.
    Type: Application
    Filed: October 13, 2010
    Publication date: September 26, 2013
    Applicant: HITACHI, LTD.
    Inventors: Miho Isokawa, Hanae Yoshida, Michio Oikawa
  • Publication number: 20130223723
    Abstract: The present invention provides a pattern measuring apparatus (600) that: acquires the image contour of a circuit pattern formed by transferring design data; classifies the acquired image contour into shape structures; calculates normal vectors for each shape structure; maps the shape structures to the image contour; uses at least one normal direction for each shape structure to stabilize the normal directions to the image contour; and uses the normal vectors for each shape structure to determine the position of a SEM contour.
    Type: Application
    Filed: March 28, 2011
    Publication date: August 29, 2013
    Inventors: Takuma Shibahara, Tsuyoshi Minakawa, Michio Oikawa, Yutaka Hojo, Hitoshi Sugahara, Hiroyuki Shindo
  • Patent number: 8452066
    Abstract: A processing is executed for identifying an image area which blocks an observation target, and removing the identified area. An image processing apparatus 10 is provided, which allows multiple projection drawings to be generated by projecting a three-dimensional image from any projecting direction and determines a removal target area, out of the designated area in each projection drawing. The image processing apparatus 10 is provided with an input section 40 for allowing a user to roughly specify an image area that blocks the observation target, the image area forming a maximum area, and an area judgment section 32 for identifying a removal target image area, and an image processing section 31 for constructing an image where the removal target image area has been removed.
    Type: Grant
    Filed: December 25, 2008
    Date of Patent: May 28, 2013
    Assignee: Hitachi Medical Corporation
    Inventor: Michio Oikawa