Patents by Inventor Tomoyuki Tahara

Tomoyuki Tahara 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: 10930929
    Abstract: The present invention provides a Li-ion secondary cell negative-electrode material with which it is possible to adequately suppress reductive decomposition of a liquid electrolyte by an active material during charging, the Li-ion secondary cell negative-electrode material exhibiting a high discharge capacity that exceeds the theoretical capacity of graphite and exceptional initial charging efficiency and cycle characteristics. In this negative-electrode material for a Li-ion secondary cell, the surfaces of particles of SiOx (O?x<2) contain Li and at least one metallic element M selected from among Si, Al, Ti, and Zr, and have a coating of a Li-containing oxide comprising a composition in which M/Li>5 with respect to the molar ratio.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: February 23, 2021
    Assignee: JFE CHEMICAL CORPORATION
    Inventor: Tomoyuki Tahara
  • Publication number: 20190081323
    Abstract: The present invention provides a Li-ion secondary cell negative-electrode material with which it is possible to adequately suppress reductive decomposition of a liquid electrolyte by an active material during charging, the Li-ion secondary cell negative-electrode material exhibiting a high discharge capacity that exceeds the theoretical capacity of graphite and exceptional initial charging efficiency and cycle characteristics. In this negative-electrode material for a Li-ion secondary cell, the surfaces of particles of SiOx (0?x<2) contain Li and at least one metallic element M selected from among Si, Al, Ti, and Zr, and have a coating of a Li-containing oxide comprising a composition in which M/Li>5 with respect to the molar ratio.
    Type: Application
    Filed: January 6, 2017
    Publication date: March 14, 2019
    Applicant: JFE Chemical Corporation
    Inventor: Tomoyuki Tahara
  • Patent number: 9688770
    Abstract: A human antibody or a functional fragment thereof having specific binding ability to CD98 which is derived from the cell membrane of cancer cells and is in the form of a complex with a protein having an amino acid transporter activity (for example, LAT1) is disclosed. This antibody binds to CD98 in the form of a dimer with LAT1 on the surface of cancer cells, specifically attacks cancer cells expressing CD98 via the immune system by ADCC or CDC, and further inhibits amino acid uptake of the cancer cells via LAT1, to suppress growth of the cancer cells. Accordingly, a preventive and therapeutic agent for cancer comprising this antibody or a fragment thereof, which acts on various cancers, is specific to cancer, and causes no side effect, is provided.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: June 27, 2017
    Assignee: KYOWA HAKKO KIRIN CO., LTD
    Inventors: Tomoyuki Tahara, Yoshikatsu Kanai, Hitoshi Endou, Shiro Kataoka, Kazumasa Hasegawa, Tetsuya Yoshino
  • Patent number: 9447172
    Abstract: The invention relates to antibodies and subsequences thereof that specifically bind to poxvirus B5R envelope protein, antibodies and subsequences thereof that specifically bind to poxvirus H3L envelope protein, and combinations thereof.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: September 20, 2016
    Assignees: KYOWA HAKKO KIRIN CO., LTD., LA JOLLA INSTITUTE FOR ALLERGY AND IMMUNOLOGY
    Inventors: Shinichiro Kato, Steve Granger, Shane Crotty, Sandra Rickert, Lilia Koriazova, Tomoyuki Tahara
  • Publication number: 20150307621
    Abstract: A human antibody or a functional fragment thereof having specific binding ability to CD98 which is derived from the cell membrane of cancer cells and is in the form of a complex with a protein having an amino acid transporter activity (for example, LAT1) is disclosed. This antibody binds to CD98 in the form of a dimer with LAT1 on the surface of cancer cells, specifically attacks cancer cells expressing CD98 via the immune system by ADCC or CDC, and further inhibits amino acid uptake of the cancer cells via LAT1, to suppress growth of the cancer cells. Accordingly, a preventive and therapeutic agent for cancer comprising this antibody or a fragment thereof, which acts on various cancers, is specific to cancer, and causes no side effect, is provided.
    Type: Application
    Filed: May 4, 2015
    Publication date: October 29, 2015
    Applicant: KYOWA HAKKO KIRIN CO., LTD
    Inventors: Tomoyuki TAHARA, Yoshikatsu KANAI, Hitoshi ENDOU, Shiro KATAOKA, Kazumasa HASEGAWA, Tetsuya YOSHINO
  • Patent number: 9051374
    Abstract: A human antibody or a functional fragment thereof having specific binding ability to CD98 which is derived from the cell membrane of cancer cells and is in the form of a complex with a protein having an amino acid transporter activity (for example, LAT1) is disclosed. This antibody binds to CD98 in the form of a dimer with LAT1 on the surface of cancer cells, specifically attacks cancer cells expressing CD98 via the immune system by ADCC or CDC, and further inhibits amino acid uptake of the cancer cells via LAT1, to suppress growth of the cancer cells. Accordingly, a preventive and therapeutic agent for cancer comprising this antibody or a fragment thereof, which acts on various cancers, is specific to cancer, and causes no side effect, is provided.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: June 9, 2015
    Assignee: KYOWA HAKKO KIRIN CO., LTD
    Inventors: Tomoyuki Tahara, Yoshikatsu Kanai, Hitoshi Endou, Shiro Kataoka, Kazumasa Hasegawa, Tetsuya Yoshino
  • Publication number: 20140212409
    Abstract: The present invention relates to a method for increasing deposition of complement C3b on the bacterial surface and phagocytosis by phagocytes, a therapeutic method and a therapeutic agent for bacterial infections, using an antibody binding to a molecule on the bacterial surface, in which the antibody is modified by substituting at least one amino acid residue with other amino acid so as to show more enhanced complement-dependent cytotoxicity (CDC) than the antibody before substitution of the amino acid residue.
    Type: Application
    Filed: August 13, 2013
    Publication date: July 31, 2014
    Applicant: KYOWA HAKKO KIRIN CO., LTD.
    Inventors: Sascha KRISTIAN, Mami KOYAMA, Yutaka KANDA, Tomoyuki TAHARA
  • Publication number: 20140186370
    Abstract: The invention relates to antibodies and subsequences thereof that specifically bind to poxvirus B5R envelope protein, antibodies and subsequences thereof that specifically bind to poxvirus H3L envelope protein, and combinations thereof.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicants: LA JOLLA INSTITUTE FOR ALLERGY AND IMMUNOLOGY, KYOWA HAKKO KIRIN CO., LTD.
    Inventors: SHINICHIRO KATO, STEVE GRANGER, SHANE CROTTY, SANDRA RICKERT, LILIA KORIAZOVA, TOMOYUKI TAHARA
  • Publication number: 20140127111
    Abstract: A method for producing lithium iron phosphate includes an aqueous solution preparation step of preparing an aqueous solution containing a phosphoric acid and a hydroxycarboxylic acid; a first preparation step of adding iron particles containing 0.1 to 2 mass % oxygen to the aqueous solution, and reacting the phosphoric acid and the hydroxycarboxylic acid in the aqueous solution with the iron particles in an oxidizing atmosphere to prepare a first reaction liquid; a second preparation step of adding a lithium source to the first reaction liquid to prepare a second reaction liquid; a third preparation step of adding a carbon source to the second reaction liquid to prepare a third reaction liquid; a precursor formation step of drying the third reaction liquid to form a lithium iron phosphate precursor; and a calcination step of calcining the lithium iron phosphate precursor in a non-oxidizing atmosphere to produce lithium iron phosphate.
    Type: Application
    Filed: February 27, 2012
    Publication date: May 8, 2014
    Applicant: JFE CHEMICAL CORPORATION
    Inventor: Tomoyuki Tahara
  • Publication number: 20140037636
    Abstract: A human antibody or a functional fragment thereof having specific binding ability to CD98 which is derived from the cell membrane of cancer cells and is in the form of a complex with a protein having an amino acid transporter activity (for example, LAT1) is disclosed. This antibody binds to CD98 in the form of a dimer with LAT1 on the surface of cancer cells, specifically attacks cancer cells expressing CD98 via the immune system by ADCC or CDC, and further inhibits amino acid uptake of the cancer cells via LAT1, to suppress growth of the cancer cells. Accordingly, a preventive and therapeutic agent for cancer comprising this antibody or a fragment thereof, which acts on various cancers, is specific to cancer, and causes no side effect, is provided.
    Type: Application
    Filed: July 12, 2013
    Publication date: February 6, 2014
    Applicant: KYOWA HAKKO KIRIN CO., LTD
    Inventors: Tomoyuki TAHARA, Yoshikatsu KANAI, Hitoshi ENDOU, Shiro KATAOKA, Kazumasa HASEGAWA, Tetsuya YOSHINO
  • Patent number: 8623370
    Abstract: The invention relates to antibodies and subsequences thereof that specifically bind to poxvirus B5R envelope protein, antibodies and subsequences thereof that specifically bind to pox virus H3L envelope protein, and combinations thereof.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: January 7, 2014
    Assignees: Kyowa Hakko Kirin Co., Ltd., La Jolla Institute for Allergy and Immunology
    Inventors: Shinichiro Kato, Steve Granger, Shane Crotty, Sandra Rickert, Lilia Koriazova, Tomoyuki Tahara
  • Patent number: 8486402
    Abstract: A human antibody or a functional fragment thereof having specific binding ability to CD98 which is derived from the cell membrane of cancer cells and is in the form of a complex with a protein having an amino acid transporter activity (for example, LAT1) is disclosed. This antibody binds to CD98 in the form of a dimer with LAT1 on the surface of cancer cells, specifically attacks cancer cells expressing CD98 via the immune system by ADCC or CDC, and further inhibits amino acid uptake of the cancer cells via LAT1, to suppress growth of the cancer cells. Accordingly, a preventive and therapeutic agent for cancer comprising this antibody or a fragment thereof, which acts on various cancers, is specific to cancer, and causes no side effect, is provided.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: July 16, 2013
    Assignee: Kyowa Hakko Kirin Co., Ltd
    Inventors: Tomoyuki Tahara, Yoshikatsu Kanai, Hitoshi Endou, Shiro Kataoka, Kazumasa Hasegawa, Tetsuya Yoshino
  • Patent number: 8420784
    Abstract: The invention relates to IL-1O Receptor alpha (IL-1OR?) antibodies and subsequences thereof, human and humanized IL-10 Receptor alpha (IL-IOR?) antibodies and subsequences thereof, isolated and purified IL-10 Receptor alpha (IL-1OR?) antibodies and subsequences thereof, compositions including IL-10 Receptor alpha (IL-1OR?) antibodies and subsequences thereof, and methods that employ IL-10 Receptor alpha (IL-1OR?) antibodies and subsequences thereof. The invention includes among other things, methods of treating a pathogen infection, pathogen reactivation, and methods of vaccinating or immunizing against a pathogen infection, which include, for example, administering an IL-10 Receptor alpha (IL-1OR?) antibody or subsequence, to treat a pathogen infection, pathogen reactivation or for vaccination or immunization.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: April 16, 2013
    Assignee: Kyowa Hakko Kirin Co., Ltd.
    Inventors: Shinichiro Kato, Rachel Soloff Nugent, Tomoyuki Tahara, Paul Rogers, Aihua Song
  • Publication number: 20120292560
    Abstract: A method of producing lithium iron phosphate includes adding iron particles containing 0.5 mass % or more of oxygen to an aqueous solution containing a phosphoric acid, a carboxylic acid and a lithium source, and causing components contained in the aqueous solution and the iron particles to react with each other under an oxidizing atmosphere and thereby form a reaction liquid; drying the reaction liquid to form a lithium iron phosphate precursor; and baking the lithium iron phosphate precursor under a non-oxidizing atmosphere to obtain the lithium iron phosphate.
    Type: Application
    Filed: December 24, 2010
    Publication date: November 22, 2012
    Applicant: JFE CHEMICAL CORPORATION
    Inventors: Tomoyuki Tahara, Minoru Sakai
  • Publication number: 20120032119
    Abstract: A method for producing lithium iron phosphate includes: an aqueous solution preparing step of preparing an aqueous solution containing a phosphoric acid and a carboxylic acid; a first forming step of adding iron particles containing 0.5 mass % or more of oxygen to the aqueous solution, and making the phosphoric acid and the carboxylic acid and the iron particles react with each other in the aqueous solution under an oxidizing atmosphere, to form a first reaction liquid is formed by; the second forming step of adding a lithium source to the first reaction liquid obtained in the synthesizing step to form a second reaction liquid; the precursor forming step of drying the second reaction liquid to form a lithium iron phosphate precursor; and the primary baking step of baking the lithium iron phosphate precursor under a non-oxidizing atmosphere thus obtaining lithium iron phosphate.
    Type: Application
    Filed: March 10, 2010
    Publication date: February 9, 2012
    Applicant: JFE CHEMICAL CORPORATION
    Inventors: Tomoyuki Tahara, Minoru Sakai
  • Publication number: 20110280884
    Abstract: A human antibody or a functional fragment thereof having specific binding ability to CD98 which is derived from the cell membrane of cancer cells and is in the form of a complex with a protein having an amino acid transporter activity (for example, LAT1) is disclosed. This antibody binds to CD98 in the form of a dimer with LAT1 on the surface of cancer cells, specifically attacks cancer cells expressing CD98 via the immune system by ADCC or CDC, and further inhibits amino acid uptake of the cancer cells via LAT1, to suppress growth of the cancer cells. Accordingly, a preventive and therapeutic agent for cancer comprising this antibody or a fragment thereof, which acts on various cancers, is specific to cancer, and causes no side effect, is provided.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 17, 2011
    Inventors: Tomoyuki TAHARA, Yoshikatsu Kanai, Hitoshi Endou, Shiro Kataoka, Kazumasa Hasegawa, Tetsuya Yoshino
  • Publication number: 20110144312
    Abstract: The invention relates to IL-1O Receptor alpha (IL-1OR?) antibodies and subsequences thereof, human and humanized IL-10 Receptor alpha (IL-IOR?) antibodies and subsequences thereof, isolated and purified IL-10 Receptor alpha (IL-1OR?) antibodies and subsequences thereof, compositions including IL-10 Receptor alpha (IL-1OR?) antibodies and subsequences thereof, and methods that employ IL-10 Receptor alpha (IL-1OR?) antibodies and subsequences thereof. The invention includes among other things, methods of treating a pathogen infection, pathogen reactivation, and methods of vaccinating or immunizing against a pathogen infection, which include, for example, administering an IL-10 Receptor alpha (IL-1OR?) antibody or subsequence, to treat a pathogen infection, pathogen reactivation or for vaccination or immunization.
    Type: Application
    Filed: May 27, 2009
    Publication date: June 16, 2011
    Applicant: KYOWA HAKKO KIRIN CO., LTD.
    Inventors: Shinichiro Kato, Rachel Soloff Nugent, Tomoyuki Tahara, Paul Rogers, Aihua Song
  • Patent number: 7943745
    Abstract: A human antibody or a functional fragment thereof having specific binding ability to CD98 which is derived from the cell membrane of cancer cells and is in the form of a complex with a protein having an amino acid transporter activity (for example, LAT1) is disclosed. This antibody binds to CD98 in the form of a dimer with LAT1 on the surface of cancer cells, specifically attacks cancer cells expressing CD98 via the immune system by ADCC or CDC, and further inhibits amino acid uptake of the cancer cells via LAT1, to suppress growth of the cancer cells. Accordingly, a preventive and therapeutic agent for cancer comprising this antibody or a fragment thereof, which acts on various cancers, is specific to cancer, and causes no side effect, is provided.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: May 17, 2011
    Assignee: Kyowa Hakko Kirin Co., Ltd.
    Inventors: Tomoyuki Tahara, Yoshikatsu Kanai, Hitoshi Endou, Shiro Kataoka, Kazumasa Hasegawa, Tetsuya Yoshino
  • Publication number: 20100143367
    Abstract: A human antibody or a functional fragment thereof having specific binding ability to CD98 which is derived from the cell membrane of cancer cells and is in the form of a complex with a protein having an amino acid transporter activity (for example, LAT1) is disclosed. This antibody binds to CD98 in the form of a dimer with LAT1 on the surface of cancer cells, specifically attacks cancer cells expressing CD98 via the immune system by ADCC or CDC, and further inhibits amino acid uptake of the cancer cells via LAT1, to suppress growth of the cancer cells. Accordingly, a preventive and therapeutic agent for cancer comprising this antibody or a fragment thereof, which acts on various cancers, is specific to cancer, and causes no side effect, is provided.
    Type: Application
    Filed: April 5, 2007
    Publication date: June 10, 2010
    Inventors: Tomoyuki Tahara, Yoshikatsu Kanai, Hitoshi Endou, Shiro Kataoka, Kazumasa Hasegawa, Tetsuya Yoshino
  • Patent number: 7592005
    Abstract: A monoclonal antibody or a functional fragment thereof that binds to a human BST2 antigen existing on the cell surface and can be localized through internalization into the cell, a complex comprising the monoclonal antibody or a functional fragment thereof and a therapeutic agent, and a pharmaceutical composition comprising, as an active ingredient, the complex.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: September 22, 2009
    Assignee: Kirin Beer Kabushiki Kaisha
    Inventor: Tomoyuki Tahara