Patents by Inventor Hajime Komatsu
Hajime Komatsu 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: 10573891Abstract: The object of the present invention is to provide a carbonaceous material which is obtainable from plant-derived char and has a decreased specific surface area. Further, the object of the present invention is to provide a non-aqueous electrolyte secondary battery having excellent dedoping capacity, non-dedoping capacity, and charge-discharge efficiency. The object can be solved by a carbonaceous material for non-aqueous electrolyte secondary batteries characterized in that the carbonaceous material is obtained by heat-treating plant-derived char which is demineralized in gas-phase, and carbon precursor or volatile organic compound under a non-oxidizing gas atmosphere; and a specific surface area determined by a BET method is 10 m2/g or less.Type: GrantFiled: January 18, 2017Date of Patent: February 25, 2020Assignee: KURARAY CO., LTD.Inventors: Makoto Imaji, Kenta Aoki, Yasuhiro Tada, Naohiro Sonobe, Junichi Arima, Kenichi Koyakumaru, Hideharu Iwasaki, Kiyoto Otsuka, Jiro Masuko, Hajime Komatsu, Shinya Tago
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Publication number: 20170125811Abstract: The object of the present invention is to provide a carbonaceous material which is obtainable from plant-derived char and has a decreased specific surface area. Further, the object of the present invention is to provide a non-aqueous electrolyte secondary battery having excellent dedoping capacity, non-dedoping capacity, and charge-discharge efficiency. The object can be solved by a carbonaceous material for non-aqueous electrolyte secondary batteries characterized in that the carbonaceous material is obtained by heat-treating plant-derived char which is demineralized in gas-phase, and carbon precursor or volatile organic compound under a non-oxidizing gas atmosphere; and a specific surface area determined by a BET method is 10 m2/g or less.Type: ApplicationFiled: January 18, 2017Publication date: May 4, 2017Applicants: KUREHA CORPORATION, KURARAY CO., LTD., KURARAY CHEMICAL CO., LTD.Inventors: Makoto IMAJI, Kenta AOKI, Yasuhiro TADA, Naohiro SONOBE, Junichi ARIMA, Kenichi KOYAKUMARU, Hideharu IWASAKI, Kiyoto OTSUKA, Jiro MASUKO, Hajime KOMATSU, Shinya TAGO
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Patent number: 9508494Abstract: The object of the present invention is to provide a manufacturing method of carbonaceous material for a negative electrode of lithium ion capacitors, wherein the carbonaceous material is obtained from plant-derived char as a source, potassium and iron are sufficiently removed, and an average particle diameter thereof is small; and a carbonaceous material for a negative electrode of lithium ion capacitors. The object can be solved by a method for manufacturing a carbonaceous material having an average diameter of 3 to 30 ?m, for a negative electrode of lithium ion capacitors comprising the steps of: (1) heating plant-derived char having an average particle diameter of 100 to 10000 ?m at 500° C. to 1250° C. under an inert gas atmosphere containing a halogen compound to demineralize in a gas-phase, (2) pulverizing a carbon precursor obtained by the demineralization in a gas-phase, (3) calcining the pulverized carbon precursor at less than 1100° C. under a non-oxidizing gas atmosphere.Type: GrantFiled: August 30, 2013Date of Patent: November 29, 2016Assignees: KUREHA CORPORATION, KURARAY CO., LTD., KURARAY CHEMICAL CO., LTD.Inventors: Naohiro Sonobe, Yasuhiro Tada, Jiro Masuko, Hajime Komatsu, Junichi Arima, Akimi Ogawa, Kenichi Koyakumaru, Kiyoto Otsuka, Hideharu Iwasaki, Junsang Cho
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Patent number: 9478805Abstract: Provided is a manufacturing method of carbonaceous material for a negative electrode of non-aqueous electrolyte secondary batteries, wherein the carbonaceous material is obtained from plant-derived char as a source, potassium is sufficiently removed, and an average particle diameter thereof is small; and a carbonaceous material for a negative electrode of non-aqueous electrolyte secondary batteries. The method for manufacturing a carbonaceous material having an average particle diameter of 3 to 30 ?m, for a negative electrode of non-aqueous electrolyte secondary batteries includes the steps of: (1) heating plant-derived char having an average particle diameter of 100 to 10000 ?m at 500° C. to 1250° C. under an inert gas atmosphere containing halogen compound to demineralize in a gas-phase, (2) pulverizing a carbon precursor obtained by demineralization in a gas-phase, (3) calcining the pulverized carbon precursor at 1000° C. to 1600° C. under an non-oxidizing gas atmosphere.Type: GrantFiled: August 30, 2013Date of Patent: October 25, 2016Assignees: KUREHA CORPORATION, KURARAY CO., LTD., KURARAY CHEMICAL CO., LTD.Inventors: Yasuhiro Tada, Yasushi Ebihara, Mayu Komatsu, Jiro Masuko, Hajime Komatsu, Naohiro Sonobe, Junichi Arima, Akimi Ogawa, Shinya Tago, Kenichi Koyakumaru, Hideharu Iwasaki, Kiyoto Otsuka
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Publication number: 20160064735Abstract: The object of the present invention is to provide a manufacturing method of carbonaceous material for a negative electrode of non-aqueous electrolyte secondary batteries, wherein the carbonaceous material is obtained from plant-derived char as a source, potassium is sufficiently removed, and an average particle diameter thereof is small; and a carbonaceous material for a negative electrode of non-aqueous electrolyte secondary batteries. The object can be solved by a method for manufacturing a carbonaceous material having an average particle diameter of 3 to 30 ?m, for a negative electrode of non-aqueous electrolyte secondary batteries comprising the steps of: (1) heating plant-derived char having an average particle diameter of 100 to 10000 ?m at 500° C. to 1250° C. under an inert gas atmosphere containing halogen compound to demineralize in a gas-phase, (2) pulverizing a carbon precursor obtained by demineralization in a gas-phase, (3) calcining the pulverized carbon precursor at 1000° C. to 1600° C.Type: ApplicationFiled: August 30, 2013Publication date: March 3, 2016Applicants: KUREHA CORPORATION, KURARAY CHEMICAL CO., LTD., KURARAY CO., LTD.Inventors: Yasuhiro TADA, Yasushi EBIHARA, Mayu KOMATSU, Jiro MASUKO, Hajime KOMATSU, Naohiro SONOBE, Junichi ARIMA, Akimi OGAWA, Shinya TAGO, Kenichi KOYAKUMARU, Hideharu IWASAKI, Kiyoto OTSUKA
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Publication number: 20150270072Abstract: The object of the present invention is to provide a manufacturing method of carbonaceous material for a negative electrode of lithium ion capacitors, wherein the carbonaceous material is obtained from plant-derived char as a source, potassium and iron are sufficiently removed, and an average particle diameter thereof is small; and a carbonaceous material for a negative electrode of lithium ion capacitors. The object can be solved by a method for manufacturing a carbonaceous material having an average diameter of 3 to 30 ?m, for a negative electrode of lithium ion capacitors comprising the steps of: (1) heating plant-derived char having an average particle diameter of 100 to 10000 ?m at 500° C. to 1250° C. under an inert gas atmosphere containing a halogen compound to demineralize in a gas-phase, (2) pulverizing a carbon precursor obtained by the demineralization in a gas-phase, (3) calcining the pulverized carbon precursor at less than 1100° C. under a non-oxidizing gas atmosphere.Type: ApplicationFiled: August 30, 2013Publication date: September 24, 2015Applicants: KUREHA CORPORATION, KURARAY CHEMICAL CO., LTD., KURARAY CO., LTD.Inventors: Naohiro Sonobe, Yasuhiro Tada, Jiro Masuko, Hajime Komatsu, Junichi Arima, Akimi Ogawa, Kenichi Koyakumaru, Kiyoto Otsuka, Hideharu Iwasaki, Junsang Cho
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Publication number: 20150263347Abstract: The object of the present invention is to provide a carbonaceous material which is obtainable from plant-derived char and has a decreased specific surface area. Further, the object of the present invention is to provide a non-aqueous electrolyte secondary battery having excellent dedoping capacity (discharge capacity), non-dedoping capacity (irreversible capacity), and charge-discharge efficiency. The object can be solved by a carbonaceous material for non-aqueous electrolyte secondary batteries characterized in that the carbonaceous material is obtained by heat-treating plant-derived char which is demineralized in gas-phase, and carbon precursor (i.e. non-graphitizable carbon precursor, graphitizable carbon, or mixture thereof) or volatile organic compound under a non-oxidizing gas atmosphere; and a specific surface area determined by a BET method is 10 m2/g or less.Type: ApplicationFiled: August 30, 2013Publication date: September 17, 2015Applicants: KUREHA CORPORATION, KURARAY CHEMICAL CO., LTD., KURARAY CO., LTD.Inventors: Makoto Imaji, Kenta Aoki, Yasuhiro Tada, Naohiro Sonobe, Junichi Arima, Kenichi Koyakumaru, Hideharu Iwasaki, Kiyoto Otsuka, Jiro Masuko, Hajime Komatsu, Shinya Tago
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Patent number: 8945445Abstract: Provided is a method of producing an anode material for a non-aqueous electrolyte secondary battery having battery characteristics equivalent to those of a conventional product by simpler production steps than those of a conventional method. A thermally-polymerized petroleum based or coal based pitch is cooled to the softening point or below so that the pitch is solidified to obtain a solidified pitch. The solidified pitch is ground to form a fine pitch powder having an average particle size (median size) of 60 ?m or smaller. Then, the fine pitch powder is compression molded at a pressure of 20 to 100 MPa or 0.1 to 6 MN/m to form a porous compression molded pitch. The porous compression molded pitch is subjected to infusibilization treatment.Type: GrantFiled: July 21, 2011Date of Patent: February 3, 2015Assignee: Kureha CorporationInventors: Hajime Komatsu, Kenjiro Hara, Michihisa Miyahara
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Patent number: 8470206Abstract: There are provided a method of producing an anode material for a non-aqueous electrolyte secondary battery which is suitable for use in a high input/output current-type non-aqueous electrolyte secondary battery exemplified by a non-aqueous electrolyte secondary battery for a hybrid electric vehicle (HEV), has reduced irreversible capacity and superior charge-discharge efficiency, and an anode material obtained by the above production method. A method of producing an anode material for a non-aqueous electrolyte secondary battery from a petroleum-based pitch material, comprising a tar removal step in which an infusibilized pitch having an oxygen content of 5 to 20 wt % is heated to a temperature of 480° C. to 700° C. while flowing an inert gas at the space velocity of 0 to 120 (min?1).Type: GrantFiled: December 14, 2009Date of Patent: June 25, 2013Assignee: Kureha CorporationInventors: Kazuhiko Shimizu, Hajime Komatsu, Kenjiro Hara, Michihisa Miyahara
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Publication number: 20120043684Abstract: Provided is a method of producing an anode material for a non-aqueous electrolyte secondary battery having battery characteristics equivalent to those of a conventional product by simpler production steps than those of a conventional method. A thermally-polymerized petroleum based or coal based pitch is cooled to the softening point or below so that the pitch is solidified to obtain a solidified pitch. The solidified pitch is ground to form a fine pitch powder having an average particle size (median size) of 60 ?m or smaller. Then, the fine pitch powder is compression molded at a pressure of 20 to 100 MPa or 0.1 to 6 MN/m to form a porous compression molded pitch. The porous compression molded pitch is subjected to infusibilization treatment.Type: ApplicationFiled: July 21, 2011Publication date: February 23, 2012Applicant: KUREHA CORPORATIONInventors: Hajime Komatsu, Kenjiro Hara, Michihisa Miyahara
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Publication number: 20110253928Abstract: There are provided a method of producing an anode material for a non-aqueous electrolyte secondary battery which is suitable for use in a high input/output current-type non-aqueous electrolyte secondary battery exemplified by a non-aqueous electrolyte secondary battery for a hybrid electric vehicle (HEV), has reduced irreversible capacity and superior charge-discharge efficiency, and an anode material obtained by the above production method. A method of producing an anode material for a non-aqueous electrolyte secondary battery from a petroleum-based pitch material, comprising a tar removal step in which an infusibilized pitch having an oxygen content of 5 to 20 wt % is heated to a temperature of 480° C. to 700° C. while flowing an inert gas at the space velocity of 0 to 120 (min?1).Type: ApplicationFiled: December 14, 2009Publication date: October 20, 2011Applicant: KUREHA CORPORATIONInventors: Kazuhiko Shimizu, Hajime Komatsu, Kenjiro Hara, Michihisa Miyahara
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Patent number: 6080764Abstract: A superoxide radical inhibitor containing, as an effective ingredient, an azole derivative represented by the general formula (1), ##STR1## [wherein R.sup.1 represents a phenyl group which may have 1-3 lower alkoxy groups as substituent(s) on the phenyl ring, a phenyl group having a lower alkylenedioxy group, or the like; R.sup.2 represents a hydrogen atom, a phenyl group, a halogen atom, a lower alkoxycarbonyl group, a lower alkyl group, an amino-lower alkyl group which may have a lower alkyl group as a substituent, a dihydrocarbostyril group, or the like; R.sup.3 represents a group of the formula, ##STR2## (R.sup.4B represents a hydroxyl group, a carboxy group, a lower alkenyl group or a lower alkyl group. m represents 0, 1 or 2); X represents a sulfur atom or an oxygen atom] or a salt thereof.Type: GrantFiled: March 25, 1997Date of Patent: June 27, 2000Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 5985869Abstract: Novel benzoheterocyclic compounds of the formula: ##STR1## wherein R.sup.1 is H, halogen, alkyl, optionally substituted amino, alkoxy; R.sup.2 is H, halogen, alkoxy, phenylalkoxy, OH, alkyl, optionally substituted amino, carbamoyl-alkoxy, optionally substituted amino-alkoxy, optionally substituted benzoyloxy; R.sup.3 is a group: --NR.sup.4 R.sup.5 or --CO--NR.sup.11 R.sup.12 ; R.sup.4 is H, optionally substitued benzoyl, alkyl; R.sup.5 is a group: ##STR2## [R.sup.16 is halogen, optionally substituted alkyl, OH, alkoxy, alkanoyloxy, alkylthio, alkanoyl, carboxy, alkoxycarbonyl, CN, NO.sub.2, optionally substituted amino, phenyl, cycloalkyl, etc., or a group: --O--A--NR.sup.6 R.sup.7 ; m is 0 to 3], phenyl-alkoxycarbonyl, alkanoyl, phenylalkanoyl, etc.; R.sup.11 is H or alkyl; R.sup.12 is cycloalkyl or optionally substituted phenyl; and W is a group: --(CH.sub.2).sub.p (p is 3 to 5) or --CH.dbd.CH--(CH.sub.2).sub.q (q is 1 to 3), the carbon atom of these groups beign optionally replaced by O, S, SO, SO.sub.Type: GrantFiled: July 15, 1997Date of Patent: November 16, 1999Assignee: Otsuka Pharmaceutical Company, LimitedInventors: Hidenori Ogawa, Hisashi Miyamoto, Kazumi Kondo, Hiroshi Yamashita, Kenji Nakaya, Hajime Komatsu, Michinori Tanaka, Shinya Kora, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 5888314Abstract: In a process for the preparation of oriented electrical steel sheet having a high magnetic flux density a primary recrystallization annealed steel sheet is nitrided for a short period of time in a temperature range of 800.degree. C. or less whereby growth of crystal grains does not substantially occur. The nitrided sheet is held at a temperature range of 700.degree. C. to 800.degree. C. for at least four hours during temperature raising to final annealing temperature whereby nitride formed by the nitriding dissolves and re-precipitates allowing the nitride to transform to a thermally stable nitride containing aluminium.Type: GrantFiled: January 21, 1994Date of Patent: March 30, 1999Assignee: Nippon Steel CorporationInventors: Yoshiyuki Ushigami, Fumio Kurosawa, Hajime Komatsu
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Patent number: 5753677Abstract: Novel benzoheterocyclic compounds of the formula: ##STR1## which have excellent vasopressin antagonistic activities and are useful as vasodilator, hypotensive agent, water diuretics, platelet agglutination inhibitor, and a vasopressin antagonistic composition containing the compound as the active ingredient.Type: GrantFiled: June 7, 1995Date of Patent: May 19, 1998Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Hidenori Ogawa, Hisashi Miyamoto, Kazumi Kondo, Hiroshi Yamashita, Kenji Nakaya, Hajime Komatsu, Michinori Tanaka, Shinya Kora, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 5753644Abstract: An object of the present invention is to provide a vasopressin antagonist and oxytocin antagonist.The vasopressing antagonist and oxytocin antagonist according to the present invention contain, as the active ingredient, a benzoheterocyclic compound represented by the general formula (1): ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and the carbon-carbon bond between 4- and 5-positions in the benzoazepine skeleton are the same as defined in claims 1, 2 and 3.) or salt thereof.Type: GrantFiled: October 15, 1996Date of Patent: May 19, 1998Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Hidenori Ogawa, Kazumi Kondo, Hiroshi Yamashita, Kenji Nakaya, Hajime Komatsu, Michinori Tanaka, Kazuyoshi Kitano, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 5677319Abstract: A superoxide radical inhibitor containing, as an effective ingredient, an azole derivative represented by the general formula (1), ##STR1## ?wherein R.sup.1 represents a phenyl group which may have 1-3 lower alkoxy groups as substituent(s) on the phenyl ring, a phenyl group having a lower alkylenedioxy group, or the like; R.sup.2 represents a hydrogen atom, a phenyl group, a halogen atom, a lower alkoxycarbonyl group, a lower alkyl group, an amino-lower alkyl group which may have a lower alkyl group as a substituent, a dihydrocarbostyril group, or the like; R.sup.3 represents a group of the formula, ##STR2## (R.sup.4B represents a hydroxyl group, a carboxy group, a lower alkenyl group or a lower alkyl group. m represents 0, 1 or 2); X represents a sulfur atom or an oxygen atom! or a salt thereof.Type: GrantFiled: June 7, 1995Date of Patent: October 14, 1997Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 5643932Abstract: A superoxide radical inhibitor containing, as an effective ingredient, an azole derivative represented by the general formula (1), ##STR1## [wherein R.sup.1 represents a phenyl group which may have 1-3 lower alkoxy groups as substituent(s) on the phenyl ring, a phenyl group having a lower alkylenedioxy group, or the like; R.sup.2 represents a hydrogen atom, a phenyl group, a halogen atom, a lower alkoxycarbonyl group, a lower alkyl group, an amino-lower alkyl group which may have a lower alkyl group as a substituent, a dihydrocarbostyril group, or the like; R.sup.3 represents a group of the formula, ##STR2## (R.sup.4B represents a hydroxyl group, a carboxy group, a lower alkenyl group or a lower alkyl group. m represents 0, 1 or 2); X represents a sulfur atom or an oxygen atom] or a salt thereof.Type: GrantFiled: May 19, 1995Date of Patent: July 1, 1997Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 5639770Abstract: A thiazole derivative of the general formula: ##STR1## The thiazole derivatives have an excellent inhibitory activity for superoxide radical.Type: GrantFiled: December 11, 1995Date of Patent: June 17, 1997Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: RE37556Abstract: A superoxide radical inhibitor containing, as an effective ingredient, an azole derivative represented by the general formula (1), [wherein R1 represents a phenyl group which may have 1-3 lower alkoxy groups as substituent(s) on the phenyl ring, a phenyl group having a lower alkylenedioxy group, or the like; R2 represents a hydrogen atom, a phenyl group, a halogen atom, a lower alkoxycarbonyl group, a lower alkyl group, an amino-lower alkyl group which may have a lower alkyl group as a substituent, a dihydrocarbostyril group, or the like; R3 represents a group of the formula, (R4B represents a hydroxyl group, a carboxy group, a lower alkenyl group or a lower alkyl group, m represents 0, 1 or 2); X represents a sulfur atom or an oxygen atom] or a salt thereof.Type: GrantFiled: February 8, 1999Date of Patent: February 19, 2002Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi