Patents by Inventor Masahiko Nakata

Masahiko Nakata 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: 11926319
    Abstract: A driving monitoring device (100) decides an applicable collision pattern that applies to a collision pattern of a case where a vehicle (200) collides with a mobile object, based on a velocity vector of the vehicle, a velocity vector of the mobile object, and so on. Subsequently, the driving monitoring device calculates a time until collision, which is a time taken until the vehicle collides with the mobile object, in the applicable collision pattern. Then, the driving monitoring device calculates a danger level of an accident in which the vehicle collides with the mobile object, based on the applicable collision pattern and the time until collision.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: March 12, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Haruo Nakata, Masahiko Tanimoto, Yosuke Ishiwatari, Masahiro Abukawa
  • Patent number: 9675320
    Abstract: In tomographic image data, a reference region-setting unit (30) sets a body reference region for the body of a fetus and sets a cardiac reference region for the heart of the fetus. A body shift analysis unit (50) analyzes the movement of the fetus' body in the tomographic image data using the body reference region and obtains body shift information. A cardiac motion analysis unit (60) analyzes the movement of the fetus' heart in the tomographic image data using the cardiac reference region and obtains cardiac motion information. Once body shift information and cardiac motion information are obtained in this manner, a pulse information-processing unit (70) obtains fetal pulse information on the basis of the cardiac motion information from which the body shift information has been subtracted. The pulse information obtained by the pulse information-processing unit (70) is displayed on the display unit (80).
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: June 13, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Nakata, Eiji Kasahara, Masaru Murashita
  • Patent number: 9119556
    Abstract: An ultrasonic diagnostic apparatus which can measure a time difference of motion between a plurality of sites of a cardiac muscle for the heart of a fetus is provided. On a tomographic image of the heart, a user sets a plurality of observation points. Each observation point is tracked, and a plurality of displacement waveforms representing a temporal displacement of the plurality of observation points are generated. A time difference between a plurality of representative points is calculated between the plurality of displacement waveforms. Such a time difference is displayed as a numerical value or as a graph. The representative point is a peak point, a zero-cross point, an inflection point, or the like. The plurality of observation points are set along conduction pathways in the heart for the electric signal.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: September 1, 2015
    Assignee: HITACHI ALOKA MEDICAL, LTD.
    Inventors: Masahiko Nakata, Eiji Kasahara, Masaru Murashita, Yasuhiro Ito
  • Publication number: 20150032001
    Abstract: In tomographic image data, a reference region-setting unit (30) sets a body reference region for the body of a fetus and sets a cardiac reference region for the heart of the fetus. A body shift analysis unit (50) analyzes the movement of the fetus' body in the tomographic image data using the body reference region and obtains body shift information. A cardiac motion analysis unit (60) analyzes the movement of the fetus' heart in the tomographic image data using the cardiac reference region and obtains cardiac motion information. Once body shift information and cardiac motion information are obtained in this manner, a pulse information-processing unit (70) obtains fetal pulse information on the basis of the cardiac motion information from which the body shift information has been subtracted. The pulse information obtained by the pulse information-processing unit (70) is displayed on the display unit (80).
    Type: Application
    Filed: February 26, 2013
    Publication date: January 29, 2015
    Applicant: HITACHI ALOKA MEDICAL, LTD.
    Inventors: Masahiko Nakata, Eiji Kasahara, Masaru Murashita
  • Publication number: 20110213249
    Abstract: An ultrasonic diagnostic apparatus which can measure a time difference of motion between a plurality of sites of a cardiac muscle for the heart of a fetus is provided. On a tomographic image of the heart, a user sets a plurality of observation points. Each observation point is tracked, and a plurality of displacement waveforms representing a temporal displacement of the plurality of observation points are generated. A time difference between a plurality of representative points is calculated between the plurality of displacement waveforms. Such a time difference is displayed as a numerical value or as a graph. The representative point is a peak point, a zero-cross point, an inflection point, or the like. The plurality of observation points are set along conduction pathways in the heart for the electric signal.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 1, 2011
    Applicants: YAMAGUCHI UNIVERSITY, ALOKA CO., LTD.
    Inventors: Masahiko Nakata, Eiji Kasahara, Masaru Murashita, Yasuhiro Ito
  • Patent number: 5147897
    Abstract: A method for producing a non-yellowing polyurethane urea foam, which comprises reacting an isocyanate-terminated prepolymer, obtained by the addition reaction of a polyol having a number average molecular weight of 100 to 5,000 and containing on the average 2 to 3 functional groups with an aliphatic polyisocyanate in an amount of 1.4 to 2.6 times the hydroxyl equivalent, with water in an amount of 0.4 to 5 times the isocyanate equivalent in the presence of, per 100 parts by weight of the prepolymer, 0.1 to 5 parts by weight of a carboxylic acid metal salt or 0.1 to 10 parts by weight of an amine-type catalyst.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: September 15, 1992
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Kiyotake Morimoto, Yasushi Takagi, Isao Kato, Masahiko Nakata