Patents by Inventor Naohiro Kubota

Naohiro Kubota 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: 7169510
    Abstract: A nonaqueous electrolytic solution comprising an electrolyte salt dissolved in an organic solvent is disclosed. The nonaqueous electrolytic solution contains a silicon compound represented by formula (I): wherein R1 represents an alkenyl group having 2 to 10 carbon atoms; R2 and R3 each represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a halogen atom; and X represents a halogen atom.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: January 30, 2007
    Assignees: Denso Corporation, Asahi Denka Co., Ltd.
    Inventors: Naomi Awano, Kyohei Usami, Naohiro Kubota
  • Patent number: 6872493
    Abstract: A nonaqueous electrolytic solution having an electrolyte salt dissolved in an organic solvent, which contains a silicon compound having an unsaturated bond which is represented by formula (I): wherein R1, R2, R3, R4, R5, and R6 each represent an alkyl group, an alkoxy group, an alkenyl group, an alkenyloxy group, an alkynyl group, an alkynyloxy group, an aryl group or an aryloxy group, each of which may have an ether bond in the chain thereof; n represents a number of from 0 to 5; when n is 1 to 5, X represents a single bond, an oxygen atom, an alkylene group, an alkylenedioxy group, an alkenylene group, an alkenylenedioxy group, an alkynylene group, an alkynylenedioxy group, an arylene group or an arylenedioxy group; provided that at least one of R1, R2, R3, R4, R5, R6, and X represents a group containing an unsaturated bond, an organotin compound or an organogermanium compound and a nonaqueous secondary battery having the same.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: March 29, 2005
    Assignees: Denso Corporation, Asahi Denka Kogyo Kabushiki Kaisha
    Inventors: Manabu Yamada, Kyohei Usami, Naomi Awano, Naohiro Kubota, Yasunori Takeuchi
  • Publication number: 20040007688
    Abstract: A nonaqueous electrolytic solution comprising an electrolyte salt dissolved in an organic solvent is disclosed.
    Type: Application
    Filed: June 23, 2003
    Publication date: January 15, 2004
    Applicants: DENSO CORPORATION, ASAHI DENKA CO., LTD.
    Inventors: Naomi Awano, Kyohei Usami, Naohiro Kubota
  • Patent number: 6566015
    Abstract: The prevent invention provides a non-aqueous electrolyte for batteries comprising the dissolving of an electrolytic salt in an organic solvent, wherein said organic solvent contains at least one type each of cyclic carbonate compound, alkyl mono-carbonate compound represented by chemical formula (1), alkylene bis-carbonate compound represented by chemical formula (2), glycol diether compound represented by chemical formula (3) (R6O—(R7O)n—R8) and phosphorous-containing organic compound. The use of at least one type of glycol diether represented with this general formula is able to yield satisfactory output characteristics by lowering the internal resistance of the battery as a result of increasing the mobility of lithium ions at the solid-liquid interface.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: May 20, 2003
    Assignees: Denso Corporation, Asahi Denka Kogyo K.K.
    Inventors: Manabu Yamada, Naohiro Kubota, Tomoyuki Oikawa, Yasunori Takeuchi
  • Publication number: 20020076619
    Abstract: A nonaqueous electrolytic solution having an electrolyte salt dissolved in an organic solvent, which contains a silicon compound having an unsaturated bond which is represented by formula (I): 1
    Type: Application
    Filed: October 30, 2001
    Publication date: June 20, 2002
    Inventors: Manabu Yamada, Kyohei Usami, Naomi Awano, Naohiro Kubota, Yasunori Takeuchi
  • Patent number: 6210840
    Abstract: A flame-retardant electrolytic solution of an electrolyte salt in an organic solvent, wherein the organic solvent contains at least one phosphorus compound represented by formula (I) and a nonaqueous secondary battery containing the flame-retardant electrolytic solution. wherein R1 represents an alkyl group having 1 to 8 carbon atoms, a halogenated alkyl group, an aryl group, an alkylaryl group, an aralkyl group or —CH2—COOR3; R2 represents a methyl group, an ethyl group or a halogenated alkyl group having 1 to 8 carbon atoms; R3 represents an alkyl group having 1 to 8 carbon atoms or a halogenated alkyl group; and m and n each represents 1 or 2 and the sum of m and n is 3.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: April 3, 2001
    Assignees: Denso Corporation, Asahi Denka Kogyo Kabushiki Kaisha
    Inventors: Kyohei Usami, Miho Ito, Naohiro Kubota, Shinya Mashimo
  • Patent number: 6117487
    Abstract: A process for forming a metal oxide film by means of a chemical vapor deposition system, which comprises using a complex of a .beta.-diketone compound and a group IV metal glycolate, the complex being represented by formula (I): ##STR1## wherein M represents a metal atom of the group IV; R.sup.1 and R.sup.2 each represent a branched alkyl or cycloalkyl group having 4 to 8 carbon atoms; and R.sup.3 represents a straight-chain or branched alkylene group having 2 to 18 carbon atoms.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: September 12, 2000
    Assignee: Asahi Denka Kogyo Kabushiki Kaisha
    Inventors: Mitsuo Akutsu, Naohiro Kubota, Akifumi Masuko, Naoki Yamada
  • Patent number: 5334484
    Abstract: A photopolymerizable composition comprising: (a) 100 parts by weight of a compound having at least one ethylenically unsaturated group, (b) 0 to 400 parts by weight of a thermoplastic organic polymer and (c) 0.01 to 20 parts by weight of a photoinitiator, characterized in that an acridine compound of the following general formula (I) is used as the photoinitiator: ##STR1## wherein R represents an alkylene, oxadialkylene or thiodialkylene group having 2 to 20 carbon atoms,and a photopolymerizable element comprising a layer of the photopolymerizable composition formed on a support.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: August 2, 1994
    Assignees: Hitachi Chemical Co., Ltd., Asahi Denka Kogyo Kabushiki Kaisha
    Inventors: Yoshitaka Minami, Hajime Kakumaru, Naohiro Kubota, Nobuhide Tominaga, Koji Ishizaki
  • Patent number: 5089377
    Abstract: Acridine compounds such as 1,4-butylenebis-.beta.-(acridin-9-yl)acrylate, or the like, are high in light sensitivity and suitable as a photopolymerization initiator.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: February 18, 1992
    Assignee: Asahi Denka Kogyo K.K.
    Inventors: Hajime Kakumaru, Yoshitaka Minami, Naohiro Kubota, Shinya Mashimo
  • Patent number: 5071888
    Abstract: Photopolymerizable prepolymer compositions are provided comprising an unsaturated compound having at least one ethylenic double bond that is photopolymerizable to form a polymer, and a photoinitiator having one of the formulae: ##STR1##
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: December 10, 1991
    Assignee: Asahi Denka Kogyo K.K.
    Inventor: Naohiro Kubota
  • Patent number: 5045433
    Abstract: A substituted acridine derivative represented by ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are independently hydrogen atoms, alkyl groups, substituted alkyl groups, aryl groups, substituted aryl groups, halogen atoms, or alkoxy groups, and Z.sub.1 is a six-membered heteroaromatic group which has one or two nitrogen atoms in its ring and may have an alkyl substituent having 1 to 8 carbon atoms, or a quinolyl group; and a photopolymerizable composition comprising 0.01 to 10 parts by weight of said derivative, 100 parts by weight of a photopolymerizable compound having a boiling point of 100.degree. C. or higher at atmospheric pressure and at least one kind of ethylenic unsaturated group, and 0 to 400 parts by weight of a thermoplastic organic polymer.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: September 3, 1991
    Assignees: Hitachi Chemical Co., Ltd., Adeka Argus Chemical Co., Ltd.
    Inventors: Hajime Kakumaru, Yoshitaka Minami, Naohiro Kubota, Shinya Mashimo
  • Patent number: 4985564
    Abstract: Acridine compounds such as 1,4-butylene-bis-.beta.-(acridin-9-yl)acrylate, or the like are high in light sensitivity and suitable as a photopolymerization initiator.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: January 15, 1991
    Assignees: Hitachi Chemical Co., Ltd., Adeka Argus Chemical Co., Ltd.
    Inventors: Hajime Kakumaru, Yoshitaka Minami, Naohiro Kubota, Shinya Mashimo
  • Patent number: 4937348
    Abstract: A process is provided for preparing 2,2'-methylene-bis-(4-hydrocarbyl-6-benzotriazolyl-phenols) having formula III: ##STR1## wherein: R is selected from the group consisting of alkyl having from one to about twelve carbon atoms; arylalkyl having from seven to about fourteen carbon atoms and cycloalkyl having from three to about twelve carbon atoms;X is selected from the group consisting of hydrogen, halogen, alkyl having from one to about twelve carbon atoms, aryl having from six to ten carbon atoms, arylalkyl having from seven to about sixteen carbon atoms, alkoxy having from one to about twelve carbon atoms, aryloxy having from six to ten carbon atoms; and arylalkoxy having from seven to about sixteen carbon atoms;R.sub.1 and R.sub.2 are selected from the group consisting of hydrogen; alkyl having from one to about six carbon atoms, and R.sub.1 and R.sub.2 taken together to form a four to six member heterocyclic ring including a nitrogen atom; provided, that at least one of R.sub.1 and R.sub.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: June 26, 1990
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventor: Naohiro Kubota
  • Patent number: 4917828
    Abstract: A process for preparing ketocholanate(s) comprises oxidizing cholanic acid compound(s), such as alkyl 3.alpha.-alkoxycarbonyloxy-7.alpha.,12.alpha.- dihydroxycholanates or alkyl 3.alpha.-acyloxy-7.alpha.,12.alpha.-dihydroxycholanates, with an alkali metal salt of an oxo acid of halogen in the presence of a cerium compound. Ketocholanate(s) such as alkyl 3.alpha.-alkoxycarbonyloxy-7,12-dioxocholanataes, alkyl 3.alpha.-alkoxycarbonyloxy- 7-oxo-12.alpha.-hydroxycholanates, alkyl 3.alpha.-acyloxy-7,12-dioxocholanates, alkyl 3.alpha.-alkoxycarbonyloxy-12- oxocholantes, alkyl 3.alpha.-acyloxy-7-oxo-12.alpha.-hydroxycholanates and mixtures thereof are thus produced.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: April 17, 1990
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventor: Naohiro Kubota
  • Patent number: 4684680
    Abstract: Thermosetting synthetic resin lacquer compositions having improved light stability are provided comprising a thermosetting synthetic resin and an alkylidene bis(benzotriazolyl phenol) having the formula (I): ##STR1## wherein: R.sub.1 is hydrogen or alkyl having from one to about twelve carbon atoms;R.sub.2 is alkyl having from one to about twelve carbon atoms or arylalkyl having from seven to about sixteen carbon atoms;X is selected from the group consisting of hydrogen, halogen, alkyl having from one to about twelve carbon atoms, aryl having from six to ten carbon atoms, arylalkyl having from seven to about sixteen carbon atoms, alkoxy having from one to about twelve carbon atoms, aryloxy having from six to ten carbon atoms; and arylalkoxy having from seven to about sixteen carbon atoms.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: August 4, 1987
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: Naohiro Kubota, Toshihiro Shibata, Atsushi Nishimura
  • Patent number: 4684679
    Abstract: Polyacetal resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol) having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: August 4, 1987
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: Naohiro Kubota, Atsushi Nishimura
  • Patent number: 4681905
    Abstract: Stabilizer compositions for synthetic resins are provided, improving the resistance of the resin to deterioration when exposed to ultraviolet light, comprising a 2,2,6,6-tetramethylpiperidyl compound and an alkylidene-bis-(benzotriazolyl phenol) having the formula: ##STR1## wherein: R.sub.1 is hydrogen or alkyl having from one to about twelve carbon atoms;R.sub.2 is alkyl having from one to about twelve carbon atoms or arylalkyl having from seven to about sixteen carbon atoms;X is selected from the group consisting of hydrogen, halogen, alkyl having from one to about twelve carbon atoms, aryl having from six to ten carbon atoms, arylalkyl having from seven to about sixteen carbon atoms, alkoxy having from one to about twelve carbon atoms, aryloxy having from six to ten carbon atoms; and arylalkoxy having from seven to about sixteen carbon atoms; as well as synthetic resin compositions containing such stabilizers.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: July 21, 1987
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: Naohiro Kubota, Atsushi Nishimura
  • Patent number: 4525506
    Abstract: Polyhydric alcohol ethers of 2,2,6,6-tetramethyl-4-piperidone ketals are provided, having the formula: ##STR1## wherein: R is selected from the group consisting of hydrogen, alkyl having from one to about eight carbon atoms, and alkyleneoxyalkylene, each alkylene having from two to about eight carbon atoms;R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about four carbon atoms;R.sub.2 is selected from the group consisting of hydrogen; oxyl O; alkyl, hydroxy alkyl and epoxyalkyl having from one to about eighteen carbon atoms; acyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eighteen carbon atoms; phenyl; phenalkyl and alkylphenyl having from seven to about twenty-four carbon atoms; andn is a number from 3 to 6as well as synthetic resin compositions having an improved resistance to deterioration and containing such compounds.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: June 25, 1985
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: Motonobu Minagawa, Naohiro Kubota, Toshihiro Shibata, Ryozo Arata
  • Patent number: 4500663
    Abstract: N,N,N-tris(2,2,6,6-tetramethyl-4-piperidone ketal)-1,3,5-triazines are provided, having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about four carbon atoms; andR.sub.2 is selected from the group consisting of hydrogen; oxyl O; alkyl, hydroxy alkyl and epoxyalkyl having from one to about eighteen carbon atoms; alkanoyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eighteen carbon atoms; phenyl; phenalkyl and alkylphenyl having from seven to about twenty-four carbon atoms; as well as synthetic resin compositions having an improved resistance to deterioration and containing such compounds.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: February 19, 1985
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: Motonobu Minagawa, Naohiro Kubota, Toshihiro Shibata, Ryozo Arata
  • Patent number: 4499220
    Abstract: Copolymer light stabilizers are provided having at least one 2,2,6,6-tetraalkyl piperidyl group in the molecule and a molecular weight within the range from about 1000 to about 20,000, that are copolymers of a maleic or fumaric acid ester containing a 2,2,6,6-tetraalkyl piperidyl group in the alcohol group of the formula: ##STR1## wherein ##STR2## R.sub.2 is alkyl or R.sub.1 ; X is ##STR3## R.sub.6 is lower alkyl; R.sub.3 is hydrogen or alkyl;R.sub.4 is hydrogen or methyl;R.sub.5 is alkylene;Y is ##STR4## R.sub.7 is alkylene; and at least one monomer selected from the group consisting of aliphatic carboxylic acid vinyl ester having from two to eight carbon atoms; alkyl vinyl ethers having from one to eighteen carbon atoms; triallyl isocyanurate; pinene; and tricyclo-(5.2.1.0.sup.2.6)-decene-3; and synthetic resin compositions having improved light stability comprising per 100 parts by weight of resin from 0.001 to 5 parts by weight of the polymeric light stabilizer.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: February 12, 1985
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: Motonobu Minagawa, Naohiro Kubota, Toshihiro Shibata