Patents by Inventor Seiichi Aikawa

Seiichi Aikawa 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: 9315790
    Abstract: The present invention provides a pharmaceutical composition comprising a protein having ?-galactosidase activity for treating Fabry disease, which causes no allergic side effect, which is highly stable in blood (plasma) and which can readily be taken up by a cell of an affected organ. The pharmaceutical composition for treating Fabry disease of the invention comprises, for example, a protein which acquires an ?-galactosidase activity through alteration of the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: April 19, 2016
    Assignees: TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE, ALTIF LABORATORIES INC.
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Ikuo Kawashima, Seiichi Aikawa, Fumiko Aikawa
  • Patent number: 9193964
    Abstract: The present invention provides, as an enzyme which can be used for enzyme replacement therapy for Fabry disease, a protein having ?-galactosidase activity, which shows no allergic adverse side effect, shows a high stability in blood, and can be easily incorporated into a cell of an affected organ. The protein of the present invention is a protein which has acquired ?-galactosidase activity by changing the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: November 24, 2015
    Assignees: TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE, ALTIF LABORATORIES
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20140171493
    Abstract: The present invention provides, as an enzyme which can be used for enzyme replacement therapy for Fabry disease, a protein having ?-galactosidase activity, which shows no allergic adverse side effect, shows a high stability in blood, and can be easily incorporated into a cell of an affected organ. The protein of the present invention is a protein which has acquired ?-galactosidase activity by changing the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Application
    Filed: January 23, 2014
    Publication date: June 19, 2014
    Applicants: ALTIF LABORATORIES, TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Patent number: 8668907
    Abstract: The present invention provides, as an enzyme which can be used for enzyme replacement therapy for Fabry disease, a protein having ?-galactosidase activity, which shows no allergic adverse side effect, shows a high stability in blood, and can be easily incorporated into a cell of an affected organ. The protein of the present invention is a protein which has acquired ?-galactosidase activity by changing the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: March 11, 2014
    Assignees: Tokyo Metropolitan Institute of Medical Science, Altif Laboratories
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20140044699
    Abstract: The present invention provides a pharmaceutical composition comprising a protein having ?-galactosidase activity for treating Fabry disease, which causes no allergic side effect, which is highly stable in blood (plasma) and which can readily be taken up by a cell of an affected organ. The pharmaceutical composition for treating Fabry disease of the invention comprises, for example, a protein which acquires an ?-galactosidase activity through alteration of the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Application
    Filed: September 13, 2013
    Publication date: February 13, 2014
    Applicants: ALTIF LABORATORIES INC., TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE
    Inventors: Hitoshi SAKURABA, Youichi TAJIMA, Ikuo KAWASHIMA, Seiichi AIKAWA, Fumiko AIKAWA
  • Patent number: 8569032
    Abstract: The present invention provides a pharmaceutical composition comprising a protein having ?-galactosidase activity for treating Fabry disease, which causes no allergic side effect, which is highly stable in blood (plasma) and which can readily be taken up by a cell of an affected organ. The pharmaceutical composition for treating Fabry disease of the invention comprises, for example, a protein which acquires an ?-galactosidase activity through alteration of the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: October 29, 2013
    Assignees: Tokyo Metropolitan Institute of Medical Science, ALTIF Laboratories Inc.
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Ikuo Kawashima, Seiichi Aikawa, Fumiko Aikawa
  • Patent number: 8323640
    Abstract: The present invention provides, as an enzyme which can be used for enzyme replacement therapy for Fabry disease, a protein having ?-galactosidase activity, which shows no allergic adverse side effect, shows a high stability in blood, and can be easily incorporated into a cell of an affected organ. The protein of the present invention is a protein which has acquired ?-galactosidase activity by changing the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: December 4, 2012
    Assignees: Tokyo Metropolitan Organization For Medical Research, Altif Laboratories
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20110171198
    Abstract: The present invention provides, as an enzyme which can be used for enzyme replacement therapy for Fabry disease, a protein having ?-galactosidase activity, which shows no allergic adverse side effect, shows a high stability in blood, and can be easily incorporated into a cell of an affected organ. The protein of the present invention is a protein which has acquired ?-galactosidase activity by changing the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Application
    Filed: March 21, 2011
    Publication date: July 14, 2011
    Applicants: TOKYO METROPOLITAN ORGANIZATION FOR MEDICAL RESEARCH, ALTIF LABORATORIES
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Patent number: 7935336
    Abstract: The present invention provides, as an enzyme which can be used for enzyme replacement therapy for Fabry disease, a protein having ?-galactosidase activity, which shows no allergic adverse side effect, shows a high stability in blood, and can be easily incorporated into a cell of an affected organ. The protein of the present invention is a protein which has acquired ?-galactosidase activity by changing the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: May 3, 2011
    Assignees: Tokyo Metropolitan Organization for Medical Research, ALTIF Laboratories
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20100291059
    Abstract: The present invention provides a pharmaceutical composition comprising a protein having ?-galactosidase activity for treating Fabry disease, which causes no allergic side effect, which is highly stable in blood (plasma) and which can readily be taken up by a cell of an affected organ. The pharmaceutical composition for treating Fabry disease of the invention comprises, for example, a protein which acquires an ?-galactosidase activity through alteration of the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Application
    Filed: May 19, 2008
    Publication date: November 18, 2010
    Applicants: ALTIF LABORATORIES INC.
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Ikuo Kawashima, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20100166728
    Abstract: The present invention provides, as an enzyme which can be used for enzyme replacement therapy for Fabry disease, a protein having ?-galactosidase activity, which shows no allergic adverse side effect, shows a high stability in blood, and can be easily incorporated into a cell of an affected organ. The protein of the present invention is a protein which has acquired ?-galactosidase activity by changing the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Application
    Filed: November 17, 2006
    Publication date: July 1, 2010
    Applicants: TOKYO METROPOLITAN ORGANIZATION FOR MEDICAL RESEARCH, ALTIF LABORATORIES
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Patent number: 7386400
    Abstract: In the analysis of one-dimensional sequences of molecules, the longest common subsequence, the number of elements constituting the subsequence, and appearance positions of the subsequence are determined by a novel and simple method, and processes, such as homology decision, homology search, motif search and alignment are performed based on the results. In the analysis of these-dimensional structures of molecules, limiting conditions, such as geometrical arrangements of elements, are introduced to realize the determination of correspondence of three-dimensional structures at high speeds, and whereby it is made possible to achieve such processing as superposed display of three-dimensional structure of molecules, retrieval of three-dimensional structure, and evaluation of functions. Moreover, the molecules are divided into secondary structure that are then related to each other based on spatial similarity among the secondary structures.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: June 10, 2008
    Assignee: Fujitsu Limited
    Inventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
  • Publication number: 20070016375
    Abstract: In the analysis of one-dimensional sequences of molecules, the longest common subsequence, the number of elements constituting the subsequence, and appearance positions of the subsequence are determined by a novel and simple method, and processes, such as homology decision, homology search, motif search and alignment are performed based on the results. In the analysis of these-dimensional structures of molecules, limiting conditions, such as geometrical arrangements of elements, are introduced to realize the determination of correspondence of three-dimensional structures at high speeds, and whereby it is made possible to achieve such processing as superposed display of three-dimensional structure of molecules, retrieval of three-dimensional structure, and evaluation of functions. Moreover, the molecules are divided into secondary structure that are then related to each other based on spatial similarity among the secondary structures.
    Type: Application
    Filed: October 26, 2005
    Publication date: January 18, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
  • Patent number: 6453064
    Abstract: The invention provides an apparatus for extracting a common structure from two three-dimensional structures each formed from a set of sequenced points. The apparatus is constructed so as to extract one of common portions with which the common portion length of the two point sets superposed with each other exhibits a greatest length and the cumulative sum of distances between matched points of the two point sets superposed with each other exhibits a lowest value as an optimum common structure. The common structure extraction apparatus is suitably used to analyze a molecular structure to make clear a mechanism for manifestation of a function of a substance in order to investigate a property of a novel substance such as a protein or artificially produce a novel substance in the fields of physics, chemistry and so forth.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: September 17, 2002
    Assignee: Fujitsu Limited
    Inventors: Seiichi Aikawa, Fumiko Matsuzawa, Mayumi Tomikawa
  • Publication number: 20020116146
    Abstract: In the analysis of one-dimensional sequences of molecules, the longest common subsequence, the number of elements constituting the subsequence, and appearance positions of the subsequence are determined by a novel and simple method, and processes, such as homology decision, homology search, motif search and alignment are performed based on the results. In the analysis of these-dimensional structures of molecules, limiting conditions, such as geometrical arrangements of elements, are introduced to realize the determination of correspondence of three-dimensional structures at high speeds, and whereby it is made possible to achieve such processing as superposed display of three-dimensional structure of molecules, retrieval of three-dimensional structure, and evaluation of functions. Moreover, the molecules are divided into secondary structure that are then related to each other based on spatial similarity among the secondary structures.
    Type: Application
    Filed: July 23, 2001
    Publication date: August 22, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
  • Publication number: 20020072863
    Abstract: In the analysis of one-dimensional sequences of molecules, the longest common subsequence, the number of elements constituting the subsequence, and appearance positions of the subsequence are determined by a novel and simple method, and processes, such as homology decision, homology search, motif search and alignment are performed based on the results. In the analysis of these-dimensional structures of molecules, limiting conditions, such as geometrical arrangements of elements, are introduced to realize the determination of correspondence of three-dimensional structures at high speeds, and whereby it is made possible to achieve such processing as superposed display of three-dimensional structure of molecules, retrieval of three-dimensional structure, and evaluation of functions. Moreover, the molecules are divided into secondary structure that are then related to each other based on spatial similarity among the secondary structures.
    Type: Application
    Filed: July 23, 2001
    Publication date: June 13, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
  • Patent number: 6370479
    Abstract: In the analysis of one-dimensional sequences of molecules, the longest common subsequence, the number of elements constituting the subsequence, and appearance positions of the subsequence are determined by a novel and simple method, and processes, such as homology decision, homology search, motif search and alignment are performed based on the results. In the analysis of these-dimensional structures of molecules, limiting conditions, such as geometrical arrangements of elements, are introduced to realize the determination of correspondence of three-dimensional structures at high speeds, and whereby it is made possible to achieve such processing as superposed display of three-dimensional structure of molecules, retrieval of three-dimensional structure, and evaluation of functions. Moreover, the molecules are divided into secondary structure that are then related to each other based on spatial similarity among the secondary structures.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: April 9, 2002
    Assignee: Fujitsu Limited
    Inventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
  • Publication number: 20020035434
    Abstract: In the analysis of one-dimensional sequences of molecules, the longest common subsequence, the number of elements constituting the subsequence, and appearance positions of the subsequence are determined by a novel and simple method, and processes, such as homology decision, homology search, motif search and alignment are performed based on the results. In the analysis of these-dimensional structures of molecules, limiting conditions, such as geometrical arrangements of elements, are introduced to realize the determination of correspondence of three-dimensional structures at high speeds, and whereby it is made possible to achieve such processing as superposed display of three-dimensional structure of molecules, retrieval of three-dimensional structure, and evaluation of functions. Moreover, the molecules are divided into secondary structure that are then related to each other based on spatial similarity among the secondary structures.
    Type: Application
    Filed: July 23, 2001
    Publication date: March 21, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
  • Patent number: 6125332
    Abstract: A method and a device for displaying a structure of a compound provide a graphic display and a related character display, affording improved operational characteristics. Stereo structural data obtained from a database is stored in a display buffer provided with a designated area for setting a display mode, thereby displaying graphically a stereo structure of said compound corresponding to the display mode set in said designated area and displaying characters representing said structure of said compound corresponding to said display mode set in said designated area.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: September 26, 2000
    Assignee: Fujitsu Limited
    Inventors: Shinichi Nishina, Seiichi Aikawa, Fumiko Matsuzawa