Patents by Inventor Hideki Niimi

Hideki Niimi 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: 11732311
    Abstract: The improved Tm mapping method using imperfect-match linear long quenching probes can accurately distinguish among and identify microorganisms at least at the genus level and often at the species level even in a real-time PCR instrument having measurement errors of Tm values between PCR tubes within ±0.5° C. Therefore, the Tm mapping method can be performed in almost all real-time PCR instruments and can identify unspecified infection-causing pathogenic microorganisms in about 4 hours after sample collection.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: August 22, 2023
    Inventors: Hideki Niimi, Shinya Otsuki, Isao Kitajima
  • Publication number: 20210317503
    Abstract: Provided is a bacterium number measuring system comprising a database storing known bacterial growth patterns in advance and an analyzing part. The analyzing part has first cultures containing a bacterial liquid that contains a measurement target bacteria and second cultures being different from the first cultures and containing the bacterial liquid and an antimicrobial drug. The analyzing part performs bacterium number measurement which measures the number of bacteria in the first cultures on a culturing part where culturing has started in the first and second cultures. The analyzing part compares the bacterium number measurement result with the growth curves stored in the database and thereby determines a timing to perform MIC measurement which measures the number of bacteria in the second cultures to determine a minimum inhibitory concentration of the measurement target bacterium. The analyzing part performs the MIC measurement at the thus-determined timing.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 14, 2021
    Inventors: Shunsuke KAWABE, Yuichi UCHIHO, Hideyuki NODA, Hideki NIIMI, Atsushi MATSUI
  • Patent number: 11134561
    Abstract: A wiring board includes a rod-shaped shaft member including at one end a flange that has a larger diameter than any other portion, a heat-releasing plate including a first through-hole in which the shaft member is inserted, and a board including a second through-hole in which the shaft member is inserted. In the wiring board, a gap is formed at least in part between the heat-releasing plate and the board.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: September 28, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideki Niimi, Shinji Takano
  • Publication number: 20210102239
    Abstract: A method for enabling rapid and accurate determination of the number of bacterial cells in a specimen using a PCR method includes the following steps: (1) a first PCR step of carrying out a PCR method using a nucleic acid derived from a specimen as a template and a universal primer pair for amplifying a bacterial 16S rRNA gene to obtain a first amplification product; (2) a second PCR step of carrying out a nested PCR method using a primer pair(s) for amplifying an internal sequence(s) of the sequence of the first amplification product obtained by the first PCR step to obtain a second amplification product; and (3) a bacterial number determination step of obtaining the number of bacterial cells in the specimen based on the amount of the second amplification product obtained in the second PCR step and using calibration data.
    Type: Application
    Filed: June 21, 2018
    Publication date: April 8, 2021
    Applicants: MITSUI CHEMICALS, INC., NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF TOYAMA
    Inventors: Hideki Niimi, Isao Kitajima, Akio MIYAKOSHI, Yoshitsugu HIGASHI
  • Publication number: 20210032686
    Abstract: The improved Tm mapping method using imperfect-match linear long quenching probes can accurately distinguish among and identify microorganisms at least at the genus level and often at the species level even in a real-time PCR instrument having measurement errors of Tm values between PCR tubes within ±0.5° C. Therefore, the Tm mapping method can be performed in almost all real-time PCR instruments and can identify unspecified infection-causing pathogenic microorganisms in about 4 hours after sample collection.
    Type: Application
    Filed: June 19, 2020
    Publication date: February 4, 2021
    Inventors: Hideki NIIMI, Shinya OTSUKI, Isao KITAJIMA
  • Publication number: 20210002708
    Abstract: A primer set useful for further improvement of sensitivity in detection or identification of bacterial species in a sample by a PCR method, a kit for PCR using the primer set and a method of detection or identification of bacterial species in a sample using the primer set. Sensitivity in detection or identification of bacterial species in a sample by conducting a PCR method using the primer set with a minimized contamination amount of bacterial nucleic acid is improved. The primer set includes at least one primer pair in seven primer pairs obtained by selecting one primer pair from each of Groups S1 to S7 consisting of specific primers. In addition, the kit for detection of bacterial species includes at least one primer pair in seven primer pairs obtained by selecting one primer pair from each of Groups K1 to K7 consisting of specific primers.
    Type: Application
    Filed: August 11, 2020
    Publication date: January 7, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koh AMANO, Tomomi SAKAI, Hisaaki YANAI, Homare TABATA, Hiroshi MINAMI, Isao KITAJIMA, Hideki NIIMI
  • Publication number: 20200355588
    Abstract: A method of pretreating a blood sample for measuring ATP of a pathogenic microorganism in blood, comprising: preparing a pellet of platelets and the pathogenic microorganism from the blood sample; and subjecting the pellet of platelets and the pathogenic microorganism to the following steps (A) to (C) in any order (including multiple simultaneous steps). A method of pretreating a cultured blood sample, wherein the method is a simplified method, does not comprise the following step (A), and comprises the steps (B) and (C) only simultaneously performed. (A) digesting cell membrane proteins of the platelets with a protease; (B) swelling the platelets in a hypotonic solution; and (C) disrupting cell membranes of the platelets with a detergent solution under a condition of suppressing an effect on the pathogenic microorganism.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 12, 2020
    Inventors: Hideki NIIMI, Kazushige SUGIE, Isao KITAJIMA, Tomohiro UENO, Atsushi MATSUI
  • Publication number: 20200314996
    Abstract: A wiring board includes a rod-shaped shaft member including at one end a flange that has a larger diameter than any other portion, a heat-releasing plate including a first through-hole in which the shaft member is inserted, and a board including a second through-hole in which the shaft member is inserted. In the wiring board, a gap is formed at least in part between the heat-releasing plate and the board.
    Type: Application
    Filed: February 20, 2020
    Publication date: October 1, 2020
    Inventors: Hideki NIIMI, Shinji TAKANO
  • Patent number: 10679920
    Abstract: A semiconductor device with small variations in high frequency characteristics by suppressing variations in impedance while maintaining high heat radiation is provided. The semiconductor device including a semiconductor package having two terminals, a wiring board having an opening at which the semiconductor package is positioned and having two electrodes connected to the two terminals and a heat sink fixing the semiconductor package in which a center of the semiconductor package is decentered with respect to a center of the opening is used. Also, the semiconductor device in which a center of the two electrodes is decentered from a center of the opening is used.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: June 9, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideki Niimi, Tatsuo Sasaoka
  • Patent number: 10619182
    Abstract: When bacteria growth is determined in the related art using an ATP method, the bacteria growth is determined, based on an increase or a decrease in live bacteria ATP with the lapse of a culture time. Accordingly, it is necessary to measure the live bacteria ATP multiple times while antimicrobial susceptibility culture is carried out. It takes time and labor in sample preparation for each measurement, and it is difficult to quickly obtain an antimicrobial susceptibility result. Therefore, according to the present invention, the presence or absence of antimicrobial susceptibility of bacteria is determined, based on an ATP luminescence amount derived from dead bacteria in a culture liquid.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: April 14, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Hiroko Tada, Hideyuki Noda, Hideki Niimi, Isao Kitajima
  • Patent number: 10501813
    Abstract: Disclosed is a thermostable DNA polymerase preparation which can illimitably reduce the risk of false positivity in the detection of a subject microorganism utilizing a gene amplification reaction and therefore enables the selective amplification of DNA for detecting the subject microorganism even when the amount of the subject microorganism is small and therefore the amount of DNA collected therefrom is extremely small, and can be produced at a reduced cost. Also disclosed is a method for quantifying or quantifying/identifying a subject organism to be detected rapidly, conveniently and with high sensitivity using the preparation of the present invention.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: December 10, 2019
    Assignees: HOKKAIDO MITSUI CHEMICALS INC., NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF TOYAMA
    Inventors: Homare Tabata, Hiroshi Minami, Hideki Niimi, Isao Kitajima, Tomohiro Ueno, Shiroh Hayashi, Masashi Mori
  • Publication number: 20190229029
    Abstract: A semiconductor device with small variations in high frequency characteristics by suppressing variations in impedance while maintaining high heat radiation is provided. The semiconductor device including a semiconductor package having two terminals, a wiring board having an opening at which the semiconductor package is positioned and having two electrodes connected to the two terminals and a heat sink fixing the semiconductor package in which a center of the semiconductor package is decentered with respect to a center of the opening is used. Also, the semiconductor device in which a center of the two electrodes is decentered from a center of the opening is used.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 25, 2019
    Inventors: HIDEKI NIIMI, TATSUO SASAOKA
  • Patent number: 10184463
    Abstract: A compressor swash plate includes a base member having a flat plate shape, and a coating layer formed on a surface of the base member and having projections formed in a linear shape, in which the following inequalities are satisfied when a plane part formed on a prism is pressed against the coating layer with a pressure of 30 MPa: 0.01?B?0.06 and 10?S?40, where B indicates widths (mm) of surfaces of the projections in contact with the plane part, and S indicates a percentage (%) of a total sum of an area Si of the contact surfaces (a gross area of the surfaces of the projections in contact with the plane part) relative to a reference area (an area of a part of the coating layer against which the plane part is pressed).
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: January 22, 2019
    Assignee: TAIHO KOGYO CO., LTD.
    Inventors: Hideki Niimi, Masanori Akizuki, Hiroshi Kanemitsu
  • Publication number: 20180230980
    Abstract: A compressor swash plate includes a base member having a flat plate shape, and a coating layer formed on a surface of the base member and having projections formed in a linear shape, in which the following inequalities are satisfied when a plane part formed on a prism is pressed against the coating layer with a pressure of 30 MPa: 0.01?B?0.06 and 10?S?40, where B indicates widths (mm) of surfaces of the projections in contact with the plane part, and S indicates a percentage (%) of a total sum of an area Si of the contact surfaces (a gross area of the surfaces of the projections in contact with the plane part) relative to a reference area (an area of a part of the coating layer against which the plane part is pressed).
    Type: Application
    Filed: September 28, 2016
    Publication date: August 16, 2018
    Applicant: TAIHO KOGYO Co., Ltd.
    Inventors: Hideki NIIMI, Masanori AKIZUKI, Hiroshi KANEMITSU
  • Publication number: 20180057860
    Abstract: Disclosed is a thermostable DNA polymerase preparation which can illimitably reduce the risk of false positivity in the detection of a subject microorganism utilizing a gene amplification reaction and therefore enables the selective amplification of DNA for detecting the subject microorganism even when the amount of the subject microorganism is small and therefore the amount of DNA collected therefrom is extremely small, and can be produced at a reduced cost. Also disclosed is a method for quantifying or quantifying/identifying a subject organism to be detected rapidly, conveniently and with high sensitivity using the preparation of the present invention.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Applicants: Hokkaido Mitsui Chemicals Inc., National University Corporation University of Toyama
    Inventors: Homare Tabata, Hiroshi Minami, Hideki Niimi, Isao Kitajima, Tomohiro Ueno, Shiroh Hayashi, Masashi Mori
  • Publication number: 20170314057
    Abstract: When bacteria growth is determined in the related art using an ATP method, the bacteria growth is determined, based on an increase or a decrease in live bacteria ATP with the lapse of a culture time. Accordingly, it is necessary to measure the live bacteria ATP multiple times while antimicrobial susceptibility culture is carried out. It takes time and labor in sample preparation for each measurement, and it is difficult to quickly obtain an antimicrobial susceptibility result. Therefore, according to the present invention, the presence or absence of antimicrobial susceptibility of bacteria is determined, based on an ATP luminescence amount derived from dead bacteria in a culture liquid.
    Type: Application
    Filed: December 26, 2014
    Publication date: November 2, 2017
    Inventors: Hiroko TADA, Hideyuki NODA, Hideki NIIMI, Isao KITAJIMA
  • Publication number: 20160257999
    Abstract: Disclosed is a thermostable DNA polymerase preparation which can illimitably reduce the risk of false positivity in the detection of a subject microorganism utilizing a gene amplification reaction and therefore enables the selective amplification of DNA for detecting the subject microorganism even when the amount of the subject microorganism is small and therefore the amount of DNA collected therefrom is extremely small, and can be produced at a reduced cost. Also disclosed is a method for quantifying or quantifying/identifying a subject organism to be detected rapidly, conveniently and with high sensitivity using the preparation of the present invention.
    Type: Application
    Filed: December 15, 2015
    Publication date: September 8, 2016
    Applicants: Hokkaido Mitsui Chemicals Inc., National University Corporation University of Toyama
    Inventors: Homare Tabata, Hiroshi Minami, Hideki Niimi, Isao Kitajima, Tomohiro Ueno, Shiroh Hayashi, Masashi Mori
  • Publication number: 20160244812
    Abstract: A primer set useful for further improvement of sensitivity in detection or identification of bacterial species in a sample by a PCR method, a kit for PCR using the primer set and a method of detection or identification of bacterial species in a sample using the primer set. Sensitivity in detection or identification of bacterial species in a sample by conducting a PCR method using the primer set with a minimized contamination amount of bacterial nucleic acid is improved. The primer set includes at least one primer pair in seven primer pairs obtained by selecting one primer pair from each of Groups S1 to S7 consisting of specific primers. In addition, the kit for detection of bacterial species includes at least one primer pair in seven primer pairs obtained by selecting one primer pair from each of Groups K1 to K7 consisting of specific primers.
    Type: Application
    Filed: October 7, 2014
    Publication date: August 25, 2016
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koh AMANO, Tomomi SAKAI, Hisaaki YANAI, Homare TABATA, Hiroshi MINAMI, Isao KITAJIMA, Hideki NIIMI
  • Patent number: 9243272
    Abstract: Disclosed is a thermostable DNA polymerase preparation which can illimitably reduce the risk of false positivity in the detection of a subject microorganism utilizing a gene amplification reaction and therefore enables the selective amplification of DNA for detecting the subject microorganism even when the amount of the subject microorganism is small and therefore the amount of DNA collected therefrom is extremely small, and can be produced at a reduced cost. Also disclosed is a method for quantifying or quantifying/identifying a subject organism to be detected rapidly, conveniently and with high sensitivity using the preparation of the present invention.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: January 26, 2016
    Assignees: HOKKAIDO MITSUI CHEMICALS INC., NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF TOYAMA
    Inventors: Homare Tabata, Hiroshi Minami, Hideki Niimi, Isao Kitajima, Tomohiro Ueno, Shiroh Hayashi, Masashi Mori
  • Publication number: 20140110153
    Abstract: A wiring board includes an insulating resin layer, wirings, and a via-hole conductor. The wirings are disposed through the insulating resin layer therebetween and formed of copper foils. The via-hole conductor penetrates through the insulating resin layer and electrically connects the wirings together. The via-hole conductor includes a resin portion and a metal portion containing copper, tin, and bismuth. The metal portion includes a first metal region including a link of copper particles, a second metal region including, as a main component, at least one of tin, a tin-copper alloy, and a tin-copper intermetallic compound, and a third metal region including bismuth as a main component. The copper particles partially include a plane-to-plane contact with a roughened surface of the copper foil, and the second metal region is partially formed on a surface of the link and on the roughened surface of the copper foil.
    Type: Application
    Filed: January 11, 2013
    Publication date: April 24, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Takafumi Kashiwagi, Eri Kamada, Yoshiki Okushima, Hideki Niimi, Ayako Iwasawa, Tadashi Nakamura