Patents by Inventor Yasutaka Sumida

Yasutaka Sumida 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: 10566618
    Abstract: The present invention provides a cell that has a high theoretical voltage and theoretical capacity, and can be discharged and recharged multiple times. The cell includes a cathode, an anode, and an electrolyte, wherein the cathode contains a cathode active material containing an alkali metal compound represented by the formula (1): AxOy??(1) (wherein A is an alkali metal atom, x is 0.5 to 2.5, and y is 0.5 to 2.5), the anode contains an anode active material containing at least one selected from the group consisting of an alkali metal, tin, titanium, boron, nitrogen, silicon, and carbon, and the cathode, the anode, and the electrolyte are hermetically sealed in the cell.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: February 18, 2020
    Assignees: The University of Tokyo, Nippon Shokubai Co., Ltd.
    Inventors: Noritaka Mizuno, Tetsuichi Kudo, Mitsuhiro Hibino, Yoshiyuki Ogasawara, Yosuke Suga, Atsuo Yamada, Yuki Yamada, Shin-ichi Okuoka, Koji Yonehara, Hironobu Ono, Yasutaka Sumida
  • Publication number: 20150280230
    Abstract: The present invention provides a cell that has a high theoretical voltage and theoretical capacity, and can be discharged and recharged multiple times. The cell includes a cathode, an anode, and an electrolyte, wherein the cathode contains a cathode active material containing an alkali metal compound represented by the formula (1): AxOy??(1) (wherein A is an alkali metal atom, x is 0.5 to 2.5, and y is 0.5 to 2.5), the anode contains an anode active material containing at least one selected from the group consisting of an alkali metal, tin, titanium, boron, nitrogen, silicon, and carbon, and the cathode, the anode, and the electrolyte are hermetically sealed in the cell.
    Type: Application
    Filed: September 25, 2013
    Publication date: October 1, 2015
    Applicants: The University of Tokyo, Nippon Shokubai Co., Ltd.
    Inventors: Noritaka Mizuno, Tetsuichi Kudo, Mitsuhiro Hibino, Yoshiyuki Ogasawara, Yosuke Suga, Atsuo Yamada, Yuki Yamada, Shin-ichi Okuoka, Koji Yonehara, Hironobu Ono, Yasutaka Sumida
  • Patent number: 8173588
    Abstract: Provided is a solid composition comprising an iminocarboxylic acid salt, wherein the iminocarboxylic acid salt is 3-hydroxy-2,2?-iminodisuccinic acid and/or a salt thereof. The solid composition comprises 70% by weight or more of the iminocarboxylic acid salt, relative to a solid content except for moisture of the solid composition, and the solid composition comprises 20% by weight or less of moisture, relative to the solid composition. Also a production method of the solid composition, comprising a step of drying an iminocarboxylic acid salt-containing composition is provided.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: May 8, 2012
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Tomomi Ina, Yasutaka Sumida
  • Publication number: 20090022645
    Abstract: To provide a bleaching activator capable of improving bleaching performance of a peroxy compound and the like, and a detergent composition comprising such a compound. A bleaching activator comprising Keggin heteropolyoxometalate anions, wherein the Keggin heteropolyoxometalate anions comprise a Keggin heteropolyoxometalate anion represented by the following formula (1): [XMa(H2O)bOc]d???(1) (in the formula, X representing a silicon atom or a phosphorus atom; M being the same or different and representing a tungsten atom or a molybdenum atom; a representing an integer of 9 to 11; b representing a positive number of 0 to 6; c representing a positive number of 28 to 39; d representing a valency and being a positive number).
    Type: Application
    Filed: January 11, 2006
    Publication date: January 22, 2009
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Yasutaka Sumida, Koji Yonehara
  • Patent number: 7425519
    Abstract: The present invention is to provide a method by which, in carrying out a liquid-phase oxidation reaction using a catalyst comprising a tungsten species as an essential component, the catalytic activity performance can be improved or maintained and by which the catalyst component tungsten species can be prevented from being leached into liquid reaction mixtures to thereby control decrease in catalytic activity and make it possible to reuse the catalyst. A method of liquid-phase oxidation reaction using a tungsten species, wherein that, in carrying out said method of liquid-phase oxidation reaction using a catalyst comprising a tungsten species as an essential component, said tungsten species is caused to be supported on a porous support and, further, a third element other than the component elements of said porous support and the tungsten element is caused to coexist in said catalyst.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: September 16, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Koji Yonehara, Yasutaka Sumida, Kazuhisa Hirata
  • Patent number: 7319165
    Abstract: The present invention is to provide a stabilized aqueous aminopolycarboxylate solution composition and a method of stabilizing the aminopolycarboxylate through preventing the same from caking. An aqueous aminopolycarboxylate solution composition containing an aminopolycarboxylate represented by the following general formula (1): in the formula, X may be the same or different and represents a hydrogen atom, an alkali metal atom, or an ammonium group, which has a D-form/L-form molar ratio of an aspartic acid skeleton of the aminopolycarboxylate of 1/0 to 0.7/0.3 or 0.3/0.7 to 0/1, has a solid concentration of 25 to 60 mass %, and has a pH value of not more than 11.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: January 15, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yasutaka Sumida, Mitsuhiro Kitajima
  • Publication number: 20070027206
    Abstract: To provide a solid composition as follows: exhibiting excellent stability; having advantages for transportation and storage; containing no additives; exhibiting functions such as excellent detergency, and capable of being preferably used, and a production method thereof. A solid composition comprising an iminocarboxylic acid salt, wherein the iminocarboxylic acid salt is 3-hydroxy-2,2?-iminodisuccinic acid and/or a salt thereof, the solid composition comprises 70% by weight or more of the iminocarboxylic acid salt, relative to a solid content except for moisture of the solid composition, and the solid composition comprises 20% by weight or less of moisture, relative to the solid composition, and a production method of the solid composition, comprising a step of drying an iminocarboxylic acid salt-containing composition.
    Type: Application
    Filed: July 26, 2006
    Publication date: February 1, 2007
    Applicant: Nippon Shokubai Co., Ltd.
    Inventors: Tomomi Ina, Yasutaka Sumida
  • Publication number: 20040171877
    Abstract: The present invention is to provide a stabilized aqueous aminopolycarboxylate solution composition and a method of stabilizing the aminopolycarboxylate through preventing the same from caking.
    Type: Application
    Filed: June 11, 2003
    Publication date: September 2, 2004
    Inventors: Yasutaka Sumida, Mitsuhiro Kitajima
  • Publication number: 20040127754
    Abstract: The present invention is to provide a method by which, in carrying out a liquid-phase oxidation reaction using a catalyst comprising a tungsten species as an essential component, the catalytic activity performance can be improved or maintained and by which the catalyst component tungsten species can be prevented from being leached into liquid reaction mixtures to thereby control decrease in catalytic activity and make it possible to reuse the catalyst.
    Type: Application
    Filed: July 18, 2003
    Publication date: July 1, 2004
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Koji Yonehara, Yasutaka Sumida, Kazuhisa Hirata
  • Patent number: 6743748
    Abstract: The present invention provides a catalyst capable of producing an epoxy compound in high yield and improving the utilization efficiency of the oxidizing agent as well as a method of producing an epoxy compound using that catalyst. A catalyst for producing an epoxy compound by oxidizing a compound having at least one ethylenic double bond with an oxidizing agent, comprising a polyatom-containing heteropolyoxometalate anion (A1) having two defective and/or three defective structure sites and containing silicon as the heteroatom, and an element (E1) being at least one element selected from the group consisting of vanadium, tantalum, niobium, antimony, bismuth, chromium, molybdenum, selenium, tellurium, rhenium, cobalt, nickel, ruthenium, rhodium, palladium, osmium, platinum, iridium, silver, gold, zinc, aluminum, gallium, indium, scandium, yttrium, titanium, zirconium, hafnium, germanium, tin and lanthanoids, and being different from the polyatom.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: June 1, 2004
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Noritaka Mizuno, Yasutaka Sumida, Koji Yonehara, Masahiro Wada, Minoru Urata
  • Publication number: 20030171604
    Abstract: The present invention provides a catalyst capable of producing an epoxy compound in high yield and improving the utilization efficiency of the oxidizing agent as well as a method of producing an epoxy compound using that catalyst.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 11, 2003
    Inventors: Noritaka Mizuno, Yasutaka Sumida, Koji Yonehara, Masahiro Wada, Minoru Urata
  • Patent number: 6506932
    Abstract: A method for oxidizing an aromatic compound possesssing at least one alkyl substituent by using a catalyst avoids containing a corrosive bromine ion, remains stably without being decomposed even in an oxidizing atmospherfe, and permits reclamation is provided. An aromatic compound possessing at least one alkyl substituent is oxidized by using a catalyst which has at least one kind of element selected from the group consisting of phosphorus, silicon, and germanium as a hetero atom and at least one kind of element selected from the group consisting of molybdenum, tungsten, vanadium, and niobium as a poly atom and comprises a heteropoly-oxometalate anion possessing two defective structure site and at least one kind of element selected from the group of elements of Periods 4˜6 of Groups IB, VA,VIIA, and VIII in the Periodic Table of the Elements.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: January 14, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yasutaka Sumida, Masahiro Wada, Noritaka Mizuno
  • Patent number: 6504054
    Abstract: An amino acid derivative composition which comprises two or more kinds of amino acid derivatives represented by the general formula (1): wherein R's are the same or different and each represents a hydrogen atom or an alkyl group containing 1 to 18 carbon atoms; L1 represents —M1—X or —CHX—M2—X; L2 represents —CH2—M3—X or —CHX—M4—X; M1, M2, M3 and M4 are the same or different and each represents a straight or branched alkylene group containing 1 to 6 carbon atoms; X represents COOM; M's are the same or different and each represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom or an ammonium group; m represents an integer of 1 or 2 and n represents an integer of 0 or 1 on the condition that m+n is equal to 2 is provided.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: January 7, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yasutaka Sumida, Mitsuhiro Kitajima, Tomomi Ina
  • Publication number: 20020133043
    Abstract: A method for oxidizing an aromatic compound possesssing at least one alkyl substituent by using a catalyst avoids containing a corrosive bromine ion, remains stably without being decomposed even in an oxidizing atmospherfe, and permits reclamation is provided. An aromatic compound possessing at least one alkyl substituent is oxidized by using a catalyst which has at least one kind of element selected from the group consisting of phosphorus, silicon, and germanium as a hetero atom and at least one kind of element selected from the group consisting of molybdenum, tungsten, vanadium, and niobium as a poly atom and comprises a heteropoly-oxometalate nion possessing two defective structure site and at least one kind of element selected from the group of elements of Periods 4˜6 of Groups IB, VA, VIIA, and VIII in the Periodic Table of the Elements.
    Type: Application
    Filed: November 7, 2001
    Publication date: September 19, 2002
    Inventors: Yasutaka Sumida, Masahiro Wada, Noritaka Mizuno
  • Patent number: 6294693
    Abstract: The present invention provides a production process for an ether carboxylate salt in which process the ether carboxylate salt is obtainable with a good yield, and the amount of expensive catalyst, as used, can be saved, and the recovery of the catalyst is easy. The production process for an ether carboxylate salt comprises the etherification step of reacting a hydroxyl-group-containing organic compound and a carboxyl-group-containing organic compound in an aqueous medium in the presence of a catalyst containing a rare earth element, wherein the carboxyl-group-containing organic compound is at least one compound selected from the group consisting of carboxyl-group-containing unsaturated organic compounds and carboxyl-group-containing epoxy compounds. This process is characterized in that the pH of the aqueous medium is in the range of 9˜13, but not including 9, and in that the amount of the catalyst, as used, is in the range of 0.0001˜0.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: September 25, 2001
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Miaki Asakawa, Yasutaka Sumida, Mitsuhiro Kitajima
  • Patent number: 6103686
    Abstract: A chelating composition containing an aliphatic polycarboxylic acid of the following formula (I): ##STR1## wherein A is an imino group or an oxygen atom, R is a hydrogen atom or a hydroxyl group, and n is 0 or 1, or the salt thereof and sugar or saccharic acid of 4 to 12 carbon atoms at such a ratio as enables the components to manifest synergistic effects is provided. This chelating composition is capable of effectively sequestering a metal ion and preventing the metal ion from being insolubilized without causing pollution of the environment.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: August 15, 2000
    Assignees: Nippon Shokubai Co. Ltd., Teikoku Chemical Industries Co., Ltd.
    Inventors: Miaki Asakawa, Yasutaka Sumida, Masatoshi Shimomura, Shuichi Okuno, Tadanobu Morimoto, Masanao Morita, Hitoshi Suenaga
  • Patent number: 6063302
    Abstract: An aqueous iminocarboxylic acid salt solution composition the iminocarboxylic acid salt of which has a structure of the formula (II): ##STR1## wherein R is a hydrogen atom or a hydroxyl group and Y is a sodium atom, a potassium atom, or an ammonium group, contains an aspartic acid backbone moiety whose molar ratio of the isomers, i.e. D form/L form, is in the range of 1/0 to 0.7/0.3 or D form/L form, in the range of 0/1 to 0.3/0.7, and accounts for a concentration in the range of 40 to 70% by weight and a method for handling the composition while keeping the pH value thereof kept in the range of 7 to 12.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: May 16, 2000
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Miaki Asakawa, Yasutaka Sumida, Yuichi Kita
  • Patent number: 5801277
    Abstract: The present invention provides: a solid catalyst which enables a person to simply and efficiently carry out an etherification reaction; and a process by which an ether compound is simply and efficiently produced using the solid catalyst. The solid catalyst is a first solid catalyst comprising at least one rare earth element, or is a second solid catalyst comprising a metallic compound which includes a metal atom and a nonmetal atom bonded to the metal atom, wherein the metallic compound has molecular orbitals including: at least one orbital (L) having an energy of E.sub.L (eV) which satisfies E.sub.LUMO .ltoreq.E.sub.L .ltoreq.(E.sub.LUMO +0.05) wherein E.sub.LUMO is an energy (eV) of the lowest unoccupied molecular orbital around the metal atom; and at least one orbital (H) having an energy of E.sub.H (eV) which satisfies (E.sub.HOMO -0.02).ltoreq.E.sub.H .ltoreq.E.sub.HOMO wherein E.sub.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: September 1, 1998
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yasutaka Sumida, Miaki Asakawa, Yuichi Kita, Mitsuhiro Kitajima, Yoshiyuki Takahashi, Kazuo Sagi