Patents by Inventor Shuichi Kamei

Shuichi Kamei 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: 10450601
    Abstract: A buffer composition for hybridization of a target nucleic acid is provided. The nucleic acid can include a nucleotide to be detected with a nucleic acid probe. The probe can contain a nucleotide sequence complementary to the target nucleic acid. The buffer can include a blocking nucleic acid having a nucleotide sequence complementary to a non-target nucleic acid having a nucleotide not to be detected corresponding to the nucleotide to be detected. The buffer composition can suppress non-specific hybridization to the nucleic acid probe even when a non-target nucleic acid is present. The use of the buffer composition can achieve excellent detection efficiency of the target nucleic acid.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: October 22, 2019
    Assignees: Toyo Kohan Co., Ltd., Yamaguchi University
    Inventors: Shuichi Kamei, Mayuko Hosoya, Masaaki Oka, Shoichi Hazama, Ryouichi Tsunedomi
  • Publication number: 20190161791
    Abstract: In the case of using a blocking nucleic acid to prevent non-specific hybridization of a target nucleic acid with a nucleic acid probe, further excellent efficiency of detecting the target nucleic acid is achieved. A buffer composition used in hybridization of a target nucleic acid with a nucleic acid probe, wherein the buffer composition for hybridization contains a blocking nucleic acid comprising a nucleotide sequence complementary to a region comprising at least a non-detection target nucleotide in a non-target nucleic acid, in a concentration of one or more times higher than the concentration of a nucleic acid in a nucleic acid mixture consisting of the target nucleic acid and the non-target nucleic acid.
    Type: Application
    Filed: August 2, 2017
    Publication date: May 30, 2019
    Applicants: TOYO KOHAN CO., LTD., YAMAGUCHI UNIVERSITY
    Inventors: Toshiya TSUDA, Shuichi KAMEI, Mitsuyoshi OBA, Hirofumi YAMANO, Ryouichi TSUNEDOMI, Shoichi HAZAMA, Hiroaki NAGANO
  • Publication number: 20160265037
    Abstract: A buffer composition for hybridization of a target nucleic acid is provided. The nucleic acid can include a nucleotide to be detected with a nucleic acid probe. The probe can contain a nucleotide sequence complementary to the target nucleic acid. The buffer can include a blocking nucleic acid having a nucleotide sequence complementary to a non-target nucleic acid having a nucleotide not to be detected corresponding to the nucleotide to be detected. The buffer composition can suppress non-specific hybridization to the nucleic acid probe even when a non-target nucleic acid is present. The use of the buffer composition can achieve excellent detection efficiency of the target nucleic acid.
    Type: Application
    Filed: September 1, 2014
    Publication date: September 15, 2016
    Applicants: Toyo Kohan Co., Ltd., Yamaguchi University
    Inventors: Shuichi Kamei, Mayuko Hosoya, Masaki Oka, Shoichi Hazama, Ryouichi Tsunedomi
  • Patent number: 9150931
    Abstract: A plurality of probes are immobilized on a carrier for detecting food poisoning bacteria, the plurality of probes being selected, either alone or in combination, respectively from two or more groups among a first probe group for detecting Escherichia coli, a second probe group for detecting Listeria, a third probe group for detecting Campylobacter, a fourth probe group for detecting Vibrio parahaemolyticus, a fifth probe group for detecting Staphylococcus aureus, a sixth probe group for detecting Salmonella, and a seventh probe group for detecting Bacillus cereus. Two or more types of food poisoning bacteria among Escherichia coli, Listeria, Campylobacter, Vibrio parahaemolyticus, Staphylococcus aureus, Salmonella, and Bacillus cereus can be specifically and simultaneously detected using the carrier.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: October 6, 2015
    Assignees: TOYO SEIKAN GROUP HOLDINGS, LTD., Toyo Kohan Co., Ltd.
    Inventors: Takaaki Yamasaki, Takaaki Harada, Yoshihiro Saruwatari, Shuichi Kamei
  • Publication number: 20130143759
    Abstract: A plurality of probes are immobilized on a carrier for detecting food poisoning bacteria, the plurality of probes being selected, either alone or in combination, respectively from two or more groups among a first probe group for detecting Escherichia coli including probes that respectively have base sequences of SEQ ID NO: 1 to 6, and probes that respectively have base sequences complementary to the base sequences of SEQ ID NO: 1 to 6 (hereinafter referred to as “complementary probes”), a second probe group for detecting Listeria including probes that respectively have base sequences of SEQ ID NO: 7 to 13, and complementary probes, a third probe group for detecting Campylobacter including probes that respectively have base sequences of SEQ ID NO: 14 to 19, and complementary probes, a fourth probe group for detecting Vibrio parahaemolyticus including probes that respectively have base sequences of SEQ ID NO: 20 to 24, and complementary probes, a fifth probe group for detecting Staphylococcus aureus including p
    Type: Application
    Filed: May 10, 2011
    Publication date: June 6, 2013
    Inventors: Takaaki Yamasaki, Takaaki Harada, Yoshihiro Saruwatari, Shuichi Kamei
  • Publication number: 20130059756
    Abstract: Nucleic acid of two or more types of food poisoning bacteria among Bacillus cereus, Campylobacter, Escherichia coli, Listeria, Salmonella, Staphylococcus aureus, and Vibrio parahaemolyticus is specifically amplified to simultaneously and specifically detect the food poisoning bacteria.
    Type: Application
    Filed: April 11, 2011
    Publication date: March 7, 2013
    Inventors: Takaaki Yamasaki, Takaaki Harada, Yoshihiro Saruwatari, Shuichi Kamei