Patents by Inventor Takehiko Ishii

Takehiko Ishii 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: 8260731
    Abstract: An information classification system includes a server that includes a knowledge base that receives classification information to be classified, conducts language analysis of the classification information to acquire a plurality of keywords and classify the plurality of keywords into elements made up of a classification target word and a related word that modifies the classification target word, and conduct a search with the related word being for a judgment condition for decision of the classification while separating the classification target word from the related word, so as to assign a classification identification value to the information; a classification candidate extraction section that extracts the classification identification value that the knowledge base assigns to generate an automatic classification result; and a classification update section that receives the automatic classification result, displays a GUI for classification confirmation allowing confirmation of correctness of the automatic cla
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: September 4, 2012
    Assignee: International Business Machines Corporation
    Inventors: Daisuke Maruyama, Kazuo Aoki, Takehiko Ishii
  • Publication number: 20120064346
    Abstract: Fine particles of crystalline polyol are provided having a cationic polymer fixed on the crystal surfaces. These fine particles can stably carry an anionically charged compound on their surfaces.
    Type: Application
    Filed: May 13, 2010
    Publication date: March 15, 2012
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Kazunori Kataoka, Kanjiro Miyata, Nobuhiro Nishiyama, Takehiko Ishii, Tomoya Suma
  • Publication number: 20120053295
    Abstract: The present invention provides an efficient delivery system for a nucleic acid, more specifically, a cationic poly(amino acid) that has a side chain having a plurality of different amine functional groups in a moiety including a cationic group and that has a hydrophobic group introduced into part of the side chain, and a polyion complex (PIC) of the poly(amino acid) and an oligo- or polynucleotide.
    Type: Application
    Filed: February 15, 2010
    Publication date: March 1, 2012
    Applicant: The University of Tokyo
    Inventors: Kazunori Kataoka, Shourong Wu, Takehiko Ishii, HyunJin Kim, Kanjiro Miyata, Nobuhiro Nishiyama
  • Publication number: 20120046453
    Abstract: The present invention provides a protein delivery means (e.g., a polyion complex) which allows efficient introduction into cells (particularly into the cytoplasm), is highly stable in serum, and is also widely applicable. The polyion complex of the present invention comprises a cationic polymer having a polycation moiety and a charge-conversional protein whose overall charge is converted from basic or neutral to acidic by a specific charge regulator.
    Type: Application
    Filed: September 17, 2009
    Publication date: February 23, 2012
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Kazunori Kataoka, Nobuhiro Nishiyama, Yan Lee, Takehiko Ishii
  • Publication number: 20110045357
    Abstract: Disclosed herein is an electrolyte including: a solvent; an electrolyte salt; and an alkanamine derivative represented by the following formula (1): where R1 is an alkyl group of 1 to 3 carbon atoms which may have a substituent group, and R2 and R3 are each independently a sulfonyl group having a substituent group of 1 to 3 carbon atoms or a sulfinyl group having a substituent group of 1 to 3 carbon atoms.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 24, 2011
    Applicant: SONY CORPORATION
    Inventors: Midori Saito, Takehiko Ishii, Nobuyuki Ohyagi
  • Patent number: 7736807
    Abstract: A non-aqueous electrolytic solution secondary battery includes a positive electrode containing, as a positive electrode active material, a compound represented by the following general formula, LixFe1-yMyPO4, wherein M is at least one member selected from the group consisting of Co, Ni, Cu, Zn, Al, Sn, B, Ga, Cr, V, Ti, Mg, Ca and Sr; 0.9<x<1.2; and 0?y<0.3; a negative electrode containing a lithium metal, a lithium alloy or a material capable of doping and dedoping lithium; and a non-aqueous electrolytic solution, the non-aqueous electrolytic solution containing a fluorinated ethylene carbonate FEC.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: June 15, 2010
    Assignee: Sony Corporation
    Inventors: Minoru Hasegawa, Yuzuru Fukushima, Guohua Li, Takehiko Ishii, Masaki Kuratsuka
  • Patent number: 7732158
    Abstract: This invention provides a method to detect analyte which comprises preparing fine particles which have a chargeable group in their core and a hydrophilic polymer chain in their shell; obtaining an agglutinated matter by forming a biologically specific bond between a specific residue on the surface of fine particles and analyte, and by simultaneously forming a bond by the electrostatic interaction between impure protein and said particles; and subsequently cleaving only the latter bond by raising ionic intensity. Thus, this invention provides a method to detect analyte with rapidity and high sensitivity with use of agglutination reaction.
    Type: Grant
    Filed: September 6, 2004
    Date of Patent: June 8, 2010
    Assignee: Japan Science and Technology Agency
    Inventors: Yukio Nagasaki, Kazunori Kataoka, Takehiko Ishii, Tadahito Takahashi
  • Publication number: 20090248671
    Abstract: An information classification system includes a server that includes a knowledge base that receives classification information to be classified, conducts language analysis of the classification information to acquire a plurality of keywords and classify the plurality of keywords into elements made up of a classification target word and a related word that modifies the classification target word, and conduct a search with the related word being for a judgment condition for decision of the classification while separating the classification target word from the related word, so as to assign a classification identification value to the information; a classification candidate extraction section that extracts the classification identification value that the knowledge base assigns to generate an automatic classification result; and a classification update section that receives the automatic classification result, displays a GUI for classification confirmation allowing confirmation of correctness of the automatic cla
    Type: Application
    Filed: December 23, 2008
    Publication date: October 1, 2009
    Inventors: Daisuke Maruyama, Kazuo Aoki, Takehiko Ishii
  • Patent number: 7568139
    Abstract: A process for identifying the location of a break in a scan chain in real time as fail data is collected from a tester. Processing a test pattern before applying it on a tester provides a signature enabling a method for a tester to identify a scan cell which is stuck during the time the tester is operating on a device under test rather than accumulating voluminous test data sets for delayed offline analysis.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: July 28, 2009
    Assignee: Inovys Corporation
    Inventors: Richard C Dokken, Gerald S Chan, Takehiko Ishii
  • Publication number: 20090148771
    Abstract: A nonaqueous electrolyte battery includes a cathode having a cathode active material layer including a lithium phosphate compound having an olivine structure; an anode having an anode active material; and a nonaqueous electrolyte, wherein the cathode active material layer includes a carbon material, of which a ratio of a peak intensity at 1,360 cm?1 to a peak intensity at 1,580 cm?1, obtained by Raman spectrum analysis through measurement using argon laser radiation at a wavelength of 514.52 nm, is 0.25 or more and 0.8 or less; and fibrous carbon.
    Type: Application
    Filed: February 10, 2009
    Publication date: June 11, 2009
    Applicant: SONY CORPORATION
    Inventors: Takehiko Ishii, Mikio Watanabe, Hideki Nakai
  • Publication number: 20090144612
    Abstract: To locate a target document generated using a target language but other otherwise synchronized to a source document generated using a different source language, a URL or other document identifier for the source webpage is received and parsed to identify one or more elements; for example, a domain element or a path element. Each of the elements is analyzed to determine whether it includes one or more character strings associated with the source language; e.g., a language name, a language code, a country name and/or a country code. Each such character string is processed to generate a corresponding character string associated with the target language. A list of candidates for a second document identifier is generated and sequentially accessed to find the target document.
    Type: Application
    Filed: November 18, 2008
    Publication date: June 4, 2009
    Applicant: International Business Machines Machines Corporation
    Inventors: Takehiko Ishii, Tadayuki Yoshida, Natsuki Zettsu
  • Publication number: 20090142668
    Abstract: The present application provides a nonaqueous electrolyte secondary battery which includes a cathode having a cathode active material layer, an anode, and a nonaqueous electrolyte, wherein the cathode active material layer includes secondary particles of a lithium phosphate compound having olivine structure, an average particle diameter A of primary particles constituting the secondary particles is 50 nm or more and 500 nm or less, and a ratio B/A of a pore diameter B of the secondary particles to the average particle diameter A of the primary particles is 0.10 or more and 0.90 or less.
    Type: Application
    Filed: December 1, 2008
    Publication date: June 4, 2009
    Applicant: Sony Corporation
    Inventor: Takehiko Ishii
  • Publication number: 20090053614
    Abstract: A non-aqueous electrolytic solution secondary battery includes a positive electrode containing, as a positive electrode active material, a compound represented by the following general formula, LixFe1-yMyPO4, wherein M is at least one member selected from the group consisting of Co, Ni, Cu, Zn, Al, Sn, B, Ga, Cr, V, Ti, Mg, Ca and Sr; 0.9<x<1.2; and 0?y<0.3; a negative electrode containing a lithium metal, a lithium alloy or a material capable of doping and dedoping lithium; and a non-aqueous electrolytic solution, the non-aqueous electrolytic solution containing a fluorinated ethylene carbonate FEC.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 26, 2009
    Applicant: Sony Corporation
    Inventors: Minoru Hasegawa, Yuzuru Fukushima, Guohua Li, Takehiko Ishii, Masaki Kuratsuka
  • Publication number: 20080318126
    Abstract: A cathode mix for nonaqueous electrolyte secondary batteries includes a cathode active material having an olivine crystal structure, and polyvinyl pyrrolidone. Also, a nonaqueous electrolyte secondary battery includes: a cathode; an anode; and a nonaqueous electrolyte, wherein the cathode includes: a cathode active material having an olivine crystal structure; and polyvinyl pyrrolidone.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 25, 2008
    Applicant: SONY CORPORATION
    Inventor: Takehiko Ishii
  • Publication number: 20080160407
    Abstract: A cathode mixture, a non-aqueous electrolyte secondary battery, and manufacture method thereof are provided. The cathode mixture for a non-aqueous electrolyte secondary battery includes: a cathode active material having an olivine type crystal structure; and an inorganic oxide which does not contribute to charge and discharge. A particle diameter A of the cathode active material lies within a range from 0.1 ?m or more to 0.5 ?m or less. There is a relation of A>B between the particle diameter A of the cathode active material and a particle diameter B of the inorganic oxide.
    Type: Application
    Filed: December 14, 2007
    Publication date: July 3, 2008
    Applicant: SONY CORPORATION
    Inventors: Takehiko Ishii, Mikio Watanabe
  • Publication number: 20080141085
    Abstract: A process for identifying the location of a break in a scan chain in real time as fail data is collected from a tester. Processing a test pattern before applying it on a tester provides a signature enabling a method for a tester to identify a scan cell which is stuck during the time the tester is operating on a device under test rather than accumulating voluminous test data sets for delayed offline analysis.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Applicant: INOVYS CORPORATION
    Inventors: Richard C. Dokken, Gerald S. Chan, Takehiko Ishii
  • Publication number: 20070059843
    Abstract: This invention provides a method to detect analyte which comprises preparing fine particles which have a chargeable group in their core and a hydrophilic polymer chain in their shell; obtaining an agglutinated matter by forming a biologically specific bond between a specific residue on the surface of fine particles and analyte, and by simultaneously forming a bond by the electrostatic interaction between impure protein and said particles; and subsequently cleaving only the latter bond by raising ionic intensity. Thus, this invention provides a method to detect analyte with rapidity and high sensitivity with use of agglutination reaction.
    Type: Application
    Filed: September 6, 2004
    Publication date: March 15, 2007
    Inventors: Yukio Nagasaki, Kazunori Kataoka, Takehiko Ishii, Tadahito Takahashi
  • Patent number: 7129293
    Abstract: A crosslinked polymer or polymer fine particles which can be obtained through copolymerization of at least a macromonomer having a polyethylene glycol segment, a comonomer having tertiary amine groups in its side chains and a crosslinking agent are provided. Said crosslinked polymer can be provided in the form of polymer nano- or micro-spheres; and also as conjugate nano- or micro-spheres with their core parts fixing or encapsulating metal or semiconductor ultrafine particles.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: October 31, 2006
    Assignees: Japan Science and Technology Agency, NOF Corporation
    Inventors: Kazunori Kataoka, Yukio Nagasaki, Hidenori Otsuka, Atsuhiko Ogura, Takehiko Ishii, Hisato Hayashi, Teppei Uno
  • Patent number: 7122133
    Abstract: A stabilized dispersion of metal fine particles comprising, fine particles of metal which is obtained by reducing at least one metallic acid or salt thereof selected from the group consisting of haloauric acid, haloplatinic acid, silver nitrate and halorhodic acid by a reducing agent in the aqueous solution of (1) R-PEG-SX [R is a functional group selected from the group consisting of acetal, aldehyde, hydroxyl group, amino group, carboxyl group, active ester group, azide group, biotin group, monosaccharide, oligosaccharide, amino acid, nucleic acid, allyl group, vinyl benzyl group, methacryloyl group and acryloyl group, PEG is ā€”(CH2CH2O)nā€”, X is H or pyridylthio group] or (2) R-PEG/PAMA (given structural formula A), and said fine particles load a polymer having PEG unit possessing above mentioned functional group on the surface.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: October 17, 2006
    Assignee: Japan Science & Technology Agency
    Inventors: Kazunori Kataoka, Yukio Nagasaki, Hidenori Otsuka, Takehiko Ishii
  • Publication number: 20050171289
    Abstract: A crosslinked polymer or polymer fine particles which can be obtained through copolymerization of at least a macromonomer having a polyethylene glycol segment, a comonomer having tertiary amine groups in its side chains and a crosslinking agent are provided. Said crosslinked polymer can be provided in the form of polymer nano- or micro- spheres; and also as conjugate nano- or micro-spheres with their core parts fixing or encapsulating metal or semiconductor ultrafine particles.
    Type: Application
    Filed: April 23, 2003
    Publication date: August 4, 2005
    Inventors: Kazunori Kataoka, Yukio Nagasaki, Hidenori Otsuka, Atsuhiko Ogura, Takehiko Ishii, Hisato Hayashi, Teppei Uno