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).
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Patent number: 9315790Abstract: 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: GrantFiled: September 13, 2013Date of Patent: April 19, 2016Assignees: TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE, ALTIF LABORATORIES INC.Inventors: Hitoshi Sakuraba, Youichi Tajima, Ikuo Kawashima, Seiichi Aikawa, Fumiko Aikawa
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Patent number: 9193964Abstract: 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: GrantFiled: January 23, 2014Date of Patent: November 24, 2015Assignees: TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE, ALTIF LABORATORIESInventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
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Publication number: 20140171493Abstract: 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: ApplicationFiled: January 23, 2014Publication date: June 19, 2014Applicants: ALTIF LABORATORIES, TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCEInventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
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Patent number: 8668907Abstract: 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: GrantFiled: November 2, 2012Date of Patent: March 11, 2014Assignees: Tokyo Metropolitan Institute of Medical Science, Altif LaboratoriesInventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
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Publication number: 20140044699Abstract: 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: ApplicationFiled: September 13, 2013Publication date: February 13, 2014Applicants: ALTIF LABORATORIES INC., TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCEInventors: Hitoshi SAKURABA, Youichi TAJIMA, Ikuo KAWASHIMA, Seiichi AIKAWA, Fumiko AIKAWA
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Patent number: 8569032Abstract: 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: GrantFiled: May 19, 2008Date of Patent: October 29, 2013Assignees: Tokyo Metropolitan Institute of Medical Science, ALTIF Laboratories Inc.Inventors: Hitoshi Sakuraba, Youichi Tajima, Ikuo Kawashima, Seiichi Aikawa, Fumiko Aikawa
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Patent number: 8323640Abstract: 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: GrantFiled: March 21, 2011Date of Patent: December 4, 2012Assignees: Tokyo Metropolitan Organization For Medical Research, Altif LaboratoriesInventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
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Publication number: 20110171198Abstract: 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: ApplicationFiled: March 21, 2011Publication date: July 14, 2011Applicants: TOKYO METROPOLITAN ORGANIZATION FOR MEDICAL RESEARCH, ALTIF LABORATORIESInventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
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Patent number: 7935336Abstract: 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: GrantFiled: November 17, 2006Date of Patent: May 3, 2011Assignees: Tokyo Metropolitan Organization for Medical Research, ALTIF LaboratoriesInventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
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Publication number: 20100291059Abstract: 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: ApplicationFiled: May 19, 2008Publication date: November 18, 2010Applicants: ALTIF LABORATORIES INC.Inventors: Hitoshi Sakuraba, Youichi Tajima, Ikuo Kawashima, Seiichi Aikawa, Fumiko Aikawa
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Publication number: 20100166728Abstract: 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: ApplicationFiled: November 17, 2006Publication date: July 1, 2010Applicants: TOKYO METROPOLITAN ORGANIZATION FOR MEDICAL RESEARCH, ALTIF LABORATORIESInventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
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Patent number: 7386400Abstract: 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: GrantFiled: July 23, 2001Date of Patent: June 10, 2008Assignee: Fujitsu LimitedInventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
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Publication number: 20070016375Abstract: 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: ApplicationFiled: October 26, 2005Publication date: January 18, 2007Applicant: FUJITSU LIMITEDInventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
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Patent number: 6453064Abstract: 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: GrantFiled: February 17, 1995Date of Patent: September 17, 2002Assignee: Fujitsu LimitedInventors: Seiichi Aikawa, Fumiko Matsuzawa, Mayumi Tomikawa
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Publication number: 20020116146Abstract: 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: ApplicationFiled: July 23, 2001Publication date: August 22, 2002Applicant: FUJITSU LIMITEDInventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
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Publication number: 20020072863Abstract: 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: ApplicationFiled: July 23, 2001Publication date: June 13, 2002Applicant: FUJITSU LIMITEDInventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
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Patent number: 6370479Abstract: 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: GrantFiled: February 8, 1993Date of Patent: April 9, 2002Assignee: Fujitsu LimitedInventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
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Publication number: 20020035434Abstract: 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: ApplicationFiled: July 23, 2001Publication date: March 21, 2002Applicant: FUJITSU LIMITEDInventors: Mayumi Tomikawa, Seiichi Aikawa, Fumiko Matsuzawa
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Patent number: 6125332Abstract: 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: GrantFiled: March 22, 1996Date of Patent: September 26, 2000Assignee: Fujitsu LimitedInventors: Shinichi Nishina, Seiichi Aikawa, Fumiko Matsuzawa