Patents by Inventor Takaaki Okita
Takaaki Okita 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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Publication number: 20100136188Abstract: Providing a frozen non-water-washed or water-washed at low level fish meat with suppressed freezing denaturation, from a fish species generally never used without water-wash. Biological iron, iron-containing substances and/or biological reducing substances in the fish meat are oxidized. A frozen non-water-washed or water-washed at low level fish meat made from minced fish meat or the dehydrated minced fish meat, where one or more cryoprotectants have been added and the decomposition of trimethylamine-N-oxide is suppressed through oxidation. Preferably, the fish meat is put in contact to oxygen under agitation of the fish meat, to thereby suppress trimethylamine-N-oxide decomposition, to which are added cryoprotectants for freezing. A frozen product of non-water-washed or water-washed at low level fish meat, where salts have been added for such agitation, followed by agitation. A fish paste product from the frozen product as the raw material.Type: ApplicationFiled: February 5, 2010Publication date: June 3, 2010Applicant: NIPPON SUISAN KAISHA, LTD.Inventors: Toru Mizuguchi, Takaaki Okita, Takashi Mori, Hiroyuki Onuki
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Patent number: 7410997Abstract: Compounds represented by formula (1), wherein X is, for example, CH, CH2, CHR (wherein R is a lower alkyl group or a substituted lower alkyl group) or CRR? (wherein R and R? are the same as the above defined R); Y is, for example, CH, CH2 or C?O; Z is, for example, O, S, S?O or SO2; U is C or N; R1 to R4 are each independently, for example, a hydrogen atom, OR, SR (wherein R is the same as defined above), or an aromatic ring, a substituted aromatic ring or a heterocycle; at least one of R5 and R8 is, for example, OH and the remaining of R5 and R8 are each independently, for example, a hydrogen atom or OH, optical isomers thereof, conjugates thereof or pharmaceutically acceptable salts thereof are provided. These compounds are characterized in having a wide range of pharmacological actions such as an excellent relaxing action of tracheal smooth muscles, an inhibition of airway hypersensitivity and an inhibition of infiltration of inflammatory cells into the airway and, in addition, high safety.Type: GrantFiled: December 5, 2003Date of Patent: August 12, 2008Assignee: Nippon Sulsan Kaisha, Ltd.Inventors: Shuji Jinno, Takaaki Okita, Naomi Ohtsuka, Shinya Yamashita, Junichiro Hata, Jiro Takeo
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Publication number: 20060204640Abstract: Providing a frozen non-water-washed or water-washed at low level fish meat with suppressed freezing denaturation, from a fish species generally never used without water-wash. Biological iron, iron-containing substances and/or biological reducing substances in the fish meat are oxidized. A frozen non-water-washed or water-washed at low level fish meat made from minced fish meat or the dehydrated minced fish meat, where one or more cryoprotectants have been added and the decomposition of trimethylamine-N-oxide is suppressed through oxidation. Preferably, the fish meat is put in contact to oxygen under agitation of the fish meat, to thereby suppress trimethylamine-N-oxide decomposition, to which are added cryoprotectants for freezing. A frozen product of non-water-washed or water-washed at low level fish meat, where salts have been added for such agitation, followed by agitation. A fish paste product from the frozen product as the raw material.Type: ApplicationFiled: August 1, 2002Publication date: September 14, 2006Inventors: Toru Mizuguchi, Takaaki Okita, Takashi Mori, Hiroyuki Onuki
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Publication number: 20050203061Abstract: A prodrug utilizes an enzyme whose enzymatic activity is different in between the target site of the drug and the site to express side effects, the prodrug having a substituent cleavable with the enzyme and being activated by cleaving the substituent with the enzyme. As the target site of the drug, for example, a respiratory organ can be mentioned and as the site to express side effects, for example, the heart can be mentioned. As the example of the drug, a bronchodilator can be mentioned and as the example of the enzyme, a glycosidase (for example, ?-glucuronidase) can be mentioned. Furthermore, the substituent is, for example, a glycosyl group composed of a monosaccharide or an oligosaccharide. Use of the enzyme enables reducing the side effects of a drug of the type whose target site is different from the site to express side effects.Type: ApplicationFiled: June 20, 2003Publication date: September 15, 2005Inventors: Shinya Yamashita, Jiro Takeo, Takaaki Okita
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Publication number: 20040127713Abstract: Compounds represented by formula (1), 1Type: ApplicationFiled: December 5, 2003Publication date: July 1, 2004Applicant: Nippon Suisan Kaisha, Ltd.Inventors: Shuji Jinno, Takaaki Okita, Naomi Ohtsuka, Shinya Yamashita, Junichiro Hata, Jiro Takeo
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Patent number: 6700013Abstract: Compounds represented by formula (1), wherein X is, for example, CH, CH2, CHR (wherein R is a lower alkyl group or a substituted lower alkyl group) or CRR′ (wherein R and R′ are the same as the above defined R); Y is, for example, CH, CH2 or C═O; Z is, for example, O, S, S═O or SO2; U is C or N; R1 to R4 are each independently, for example, a hydrogen atom, OR, SR (wherein R is the same as defined above), or an aromatic ring, a substituted aromatic ring or a heterocycle; at least one of R5 and R8 is, for example, OH and the remaining of R5 and R8 are each independently, for example, a hydrogen atom or OH, optical isomers thereof, conjugates thereof or pharmaceutically acceptable salts thereof are provided.Type: GrantFiled: November 12, 2002Date of Patent: March 2, 2004Assignee: Nippon Suisan Kaisha, Ltd.Inventors: Shuji Jinno, Takaaki Okita, Naomi Ohtsuka, Shinya Yamashita, Junichiro Hata, Jiro Takeo
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Publication number: 20030220360Abstract: Compounds represented by formula (1), 1Type: ApplicationFiled: November 12, 2002Publication date: November 27, 2003Applicant: Nippon Suisan Kaisha, Ltd., a Japan corporationInventors: Shuji Jinno, Takaaki Okita, Naomi Ohtsuka, Shinya Yamashita, Junichiro Hata, Jiro Takeo
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Patent number: 6602898Abstract: Compounds represented by formula (1), wherein X is, for example, CH, CH2, CHR (wherein R is a lower alkyl group or a substituted lower alkyl group) or CRR′ (wherein R and R′ are the same as the above defined R); Y is, for example, CH, CH2 or C═O; Z is, for example, O, S, S=O or SO2; U is C or N; R1 to R4 are each independently, for example, a hydrogen atom, OR, SR (wherein R is the same as defined above), or an aromatic ring, a substituted aromatic ring or a heterocycle; at least one of R5 and R8 is, for example, OH and the remaining of R5 and R8 are each independently, for example, a hydrogen atom or OH, optical isomers thereof, conjugates thereof or pharmaceutically acceptable salts thereof are provided.Type: GrantFiled: February 26, 2002Date of Patent: August 5, 2003Assignee: Nippon Suisan Kaisha, Ltd.Inventors: Shuji Jinno, Takaaki Okita, Naomi Ohtsuka, Shinya Yamashita, Junichiro Hata, Jiro Takeo
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Publication number: 20030065021Abstract: The present invention offers a tracheal smooth muscle relaxant containing the compound represented by the following formula (1) or pharmacologically acceptable salt thereof as an effective ingredient.Type: ApplicationFiled: October 1, 2002Publication date: April 3, 2003Inventors: Shinya Yamashita, Jiro Takeo, Shuji Jinno, Yasuyo Kogure, Hiroyuki Onuki, Takaaki Okita, Junichiro Hata, Yasuhiro Fukuda, Naomi Ohtsuka
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Patent number: 6495592Abstract: The present invention offers a tracheal smooth muscle relaxant containing the compound represented by the following formula (1) or pharmacologically acceptable salt thereof as an effective ingredient.Type: GrantFiled: June 30, 2000Date of Patent: December 17, 2002Assignee: Nippon Suisan Kaisha, Ltd.Inventors: Shinya Yamashita, Jiro Takeo, Shuji Jinno, Yasuyo Kogure, Hiroyuki Onuki, Takaaki Okita, Junichiro Hata, Yasuhiro Fukuda, Naomi Ohtsuka
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Patent number: 6207837Abstract: Efficient synthesis of diaryl sulfide derivatives useful as intermediates for pharmaceutical compounds. Provision of a convenient process for producing large quantities of dibenzo[b,f]thiepine derivatives using such intermediates.Type: GrantFiled: January 18, 2000Date of Patent: March 27, 2001Assignee: Nippon Suisan Kaisha, Ltd.Inventors: Naomi Ohtsuka, Shuji Jinno, Takaaki Okita
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Patent number: 6180659Abstract: The present invention offers a tracheal smooth muscle relaxant containing the compound represented by the following formula (1) or pharmacologically acceptable salt thereof as an effective ingredient.Type: GrantFiled: August 31, 1998Date of Patent: January 30, 2001Assignee: Nippon Suisan Kaisha, Ltd.Inventors: Shinya Yamashita, Jiro Takeo, Shuji Jinno, Yasuyo Kogure, Hiroyuki Onuki, Takaaki Okita, Junichiro Hata, Yasuhiro Fukuda, Naomi Ohtsuka
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Patent number: 5734067Abstract: Providing a novel tricyclic, condensed heterocyclic compound having an anti-oxidative action and being promising for use in pharmaceutical agents, cosmetics, chemical products and the like. By chemical synthesis, a novel anti-oxidative, tricyclic, condensed heterocyclic compound represented by the following formula: ##STR1## (wherein X--Y represents CH.sub.2 --C.dbd.O, CH.sub.2 --CH.sub.2 or CH.dbd.CH; Z represents O, S, or S.dbd.O; R.sub.1 to R.sub.8 represent independently those selected from the group consisting of hydrogen atom, a hydroxyl group, a halogen group, a lower alkyl group, a lower alkoxyl group, a lower alkyl ketone group and CF.sub.3 ; and at least two of R.sub.1 to R.sub.4 are hydroxyl groups); and the salts thereof are provided. The compound has an anti-oxidative activity at the same degree as or higher than the activity of .alpha.Type: GrantFiled: March 4, 1997Date of Patent: March 31, 1998Assignee: Nippon Suisan Kaisha, Ltd.Inventors: Shuji Jinno, Yasuyo Kogure, Hiroyuki Onuki, Takaaki Okita
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Patent number: 5608044Abstract: The present invention relates to intermediates, pradimic acids and pradimic acid amides of the formula (II) ##STR1## wherein R is OH or NH.sub.2 ; R.sup.1 is hydrogen or a group of the formula ##STR2## with the proviso that when R is OH, R.sup.1 is not hydrogen; Y is OH or NR.sup.2 R.sup.3 ; R.sup.2 is hydrogen or methyl; R.sup.3 is hydrogen, C.sub.1-5 alkyl, or an amino protecting group; R.sup.4 is hydrogen, hydroxy protecting group, or .beta.-D-xylosyl.The invention relates also to novel processes for the preparation of pradimic acids and pradimic acid amides, as well as novel pradimicin derivatives prepared therefrom.Type: GrantFiled: February 7, 1995Date of Patent: March 4, 1997Assignee: Bristol-Myers Squibb CompanyInventors: Satsuki Okuyama, Takaaki Okita, Hajime Kamachi
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Patent number: 5414073Abstract: The present invention relates to intermediates, pradimic acids and pradimic acid amides of the formula (II) ##STR1## wherein R is OH or NH.sub.2 ; R.sup.1 is hydrogen or a group of the formula ##STR2## with the proviso that when R is OH, R.sup.1 is not hydrogen; Y is OH or NR.sup.2 R.sup.3 ; R.sup.2 is hydrogen or methyl; R.sup.3 is hydrogen, C.sub.1-5 alkyl, or an amino protecting group; R.sup.4 is hydrogen, hydroxy protecting group, or .beta.-D-xylosyl. The invention relates also to novel processes for the preparation of pradimic acids and pradimic acid amides, as well as novel pradimicin derivatives prepared therefrom.Type: GrantFiled: August 3, 1994Date of Patent: May 9, 1995Assignee: Bristol-Myers SquibbInventors: Satsuki Okuyama, Takaaki Okita, Hajime Kamachi
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Patent number: 5360585Abstract: A plastics granulating process wherein a cutter holder having cutter knives is driven to rotate along a die surface of a die and a housing is provided with a cutter drive shaft for driving the cutter holder to rotate in a manner so that plastics particles are obtained by cutting resin extruded from the die. A sleeve is axially movably provided in the housing so as to coaxially rotatably hold the cutter drive shaft, and a pressure medium is supplied into space chambers formed between the sleeve and the housing so that the cutter drive shaft moves axially with axial movement of the sleeve and the cutter knives presses against the die surface with a controlled thrust force.Type: GrantFiled: June 30, 1993Date of Patent: November 1, 1994Assignee: The Japan Steel Works, Ltd.Inventors: Yasuhiko Ishida, Minoru Yoshida, Hideki Mizuguchi, Takaaki Okita, Tetsuo Makida
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Patent number: 5326867Abstract: The present invention relates to intermediates, pradimic acids and pradimic acid amides of the formula (II) ##STR1## wherein R is OH or NH.sub.2 ; R.sup.1 is hydrogen or a group of the formula ##STR2## with the proviso that when R is OH, R.sup.1 is not hydrogen; Y is OH or NR.sup.2 R.sup.3 ; R.sup.2 is hydrogen or methyl; R.sup.3 is hydrogen, C.sub.1-5 alkyl, or an amino protecting group; R.sup.4 is hydrogen, hydroxy protecting group, or .beta.-D-xylosyl. The invention relates also to novel processes for the preparation of pradimic acids and pradimic acid amides, as well as novel pradimicin derivatives prepared therefrom.Type: GrantFiled: July 16, 1992Date of Patent: July 5, 1994Assignee: Bristol-Myers Squibb CompanyInventors: Satsuki Okuyama, Takaaki Okita, Hajime Kamachi
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Antibiotic C-7 catechol-substituted cephalosporin compounds, compositions, and method of use thereof
Patent number: 5234920Abstract: The present invention relates to new cephalosporins of the formula ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen or carboxy, with the proviso that both cannot be the same;R.sup.3 is hydrogen or acetyl; andR.sup.4 is a radical selected from the group consisting of ##STR2## in which n is 1 or 2, R.sup.5 is hydrogen or acetyl, and R.sup.6 is hydrogen, a lower C.sub.1-3 alkyl, or a radical selected from the group consisting of ##STR3## in which n and R.sup.5 are as defined above. In another aspect, this invention relates to processes for the preparation of the compounds of Formula I, to pharmaceutical compositions containing at least one compound of Formula I, and to intermediates in their preparation.Type: GrantFiled: January 6, 1992Date of Patent: August 10, 1993Assignee: Bristol-Myers Squibb CompanyInventors: Takaaki Okita, Hajime Kamachi, Shinji Masuyoshi, Kiyoto Imae -
Patent number: 5143911Abstract: The present invention relates to new cephalosporins of the Formula ##STR1## wherein Y is N or CH;R.sup.1 is hydrogen, a straight, branched, or cyclic lower alkyl group having up to six carbon atoms or a radical of the formula ##STR2## in which R.sup.3 and R.sup.4 are each independently hydrogen, methyl, or ethyl, or R.sup.3 and R.sup.4 taken together with the carbon atom to which they are attached, may be a cycloalkylidene ring containing from 3 to 5 carbon atoms;R.sup.2 is a radical selected from the group consisting of ##STR3## in which R.sup.5 is hydrogen or acetyl. In another aspect, this invention relates to processes for the preparation of the compounds of Formula I, to pharmaceutical compositions containing at least one compound of Formula I, and to intermediates in their preparation.Type: GrantFiled: August 23, 1990Date of Patent: September 1, 1992Assignee: Bristol-Myers Squibb CompanyInventors: Hajime Kamachi, Kiyoto Imae, Takaaki Okita
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Antibiotic C-7 catechol-substituted cephalosporin compounds, compositions, and method of use thereof
Patent number: 5095012Abstract: The present invention relates to new cephalosporins of the formula ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen or carboxy, with the proviso that both cannot be the same;R.sup.3 is hydrogen or acetyl; andR.sup.4 is a radical selected from the group consisting of ##STR2## in which n is 1 or 2, R.sup.5 is hydrogen or acetyl, and R.sup.6 is hydrogen, a lower C.sub.1-3 alkyl, or a radical selected from the group consisting of ##STR3## in which n and R.sup.5 are as defined above. In another aspect, this invention relates to processes for the preparation of the compounds of Formula I, to pharmaceutical compositions containing at least one compound of Formula I, and to intermediates in their preparation.Type: GrantFiled: August 23, 1990Date of Patent: March 10, 1992Assignee: Bristol-Myers Squibb CompanyInventors: Takaaki Okita, Hajime Kamachi, Shinji Masuyoshi, Kiyoto Imae