Patents by Inventor Hiroshi Goda
Hiroshi Goda 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: 20120269312Abstract: An object is to provide a corium cooling structure that is capable of accumulating corium and debris that have flowed out from a reactor in small divided portions and of sufficiently cooling the high-temperature corium and debris, a reactor containment vessel provided with the same, and a nuclear power plant provided with the same. A capture portion that captures the corium that has flowed out from a reactor and a plurality of pipe portions that are provided in a coolant storing portion and into which the corium flows via the capture portion are provided.Type: ApplicationFiled: August 24, 2010Publication date: October 25, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshiyuki Kondo, Tadahiko Suzuta, Makoto Yamagishi, Hiroshi Goda, Koichi Tanimoto
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Publication number: 20120051485Abstract: In a corium cooling promoting apparatus and a containment, a pressurized water reactor (12) is contained inside the containment (11), and a cavity (56) to which cooling water can be supplied in an emergency is provided below the pressurized water reactor (12). The cooling promoting apparatus (61) is disposed in the cavity (56), and an inclined plate (62) for spreading a corium (debris) from the pressurized water reactor (12) is provided, as the cooling promoting apparatus (61), at a position below the pressurized water reactor (12) in the cavity (56). The cooling of the corium falling from the nuclear reactor is thereby facilitated, and the corium is cooled at an early stage to improve safety.Type: ApplicationFiled: July 24, 2009Publication date: March 1, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiroshi Goda, Makoto Yamagishi, Tadahiko Suzuta, Yoshiyuki Kondo
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Publication number: 20080152067Abstract: A nuclear reactor housing includes a vertically held pressurized water reactor and a cavity formed below the pressurized water reactor. A granulating member is positioned between the pressurized water reactor and the cavity and that accelerates granulation of debris falling from the pressurized water reactor into the cavity.Type: ApplicationFiled: May 31, 2007Publication date: June 26, 2008Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiroshi Goda, Yoshinori Yamakoshi, Makoto Yamagishi, Koichi Tanimoto
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Patent number: 5939548Abstract: There is disclosed a process for preparing 3-piperazinylbenzisothiazoles comprising reacting the specified 3-halo-1,2-benzisothiazole or 2-cyanobenzenesulfenyl halide in the presence of an alkylene glycol derivative. The process is industrially effective, easy and economical and can provide useful intermediates for production of pharmaceutical preparations.Type: GrantFiled: August 4, 1998Date of Patent: August 17, 1999Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hiroshi Goda, Junichi Sakamoto, Shigeki Sakaue, Sakae Kajihara, Miki Todo
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Patent number: 5932731Abstract: The present invention provides a process for preparing an aromatic or heteroaromatic thiol represented by the formula (2), the process comprising hydrolyzing an aromatic or heteroaromatic halogenated methyl sulfide represented by the formula (1)Ar.paren open-st.SCH.sub.3-m X.sub.m).sub.n (1)Ar.paren open-st.SH).sub.n (2)wherein Ar is an aromatic or heteroaromatic ring which has no substituent or which has an optional substituent or substituents, X is a halogen atom, m is an integer of 1 to 3 and n is 1 or 2.Type: GrantFiled: December 22, 1997Date of Patent: August 3, 1999Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hiroshi Goda, Mikio Yamamoto, Jun-ichi Sakamoto, Hitoshi Karino
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Patent number: 5861511Abstract: There is disclosed a process for preparing 3-piperazinylbenzisothiazoles comprising reacting the specified 3-halo-1,2-benzisothiazole or 2-cyanobenzenesulfenyl halide in the presence of an alkylene glycol derivative. The process is industrially effective, easy and economical and can provide useful intermediates for production of pharmaceutical preparations.Type: GrantFiled: September 26, 1997Date of Patent: January 19, 1999Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hiroshi Goda, Junichi Sakamoto, Shigeki Sakaue, Sakae Kajihara, Miki Todo
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Patent number: 5856504Abstract: A method for producing a 1,2-benzisothiazole characterized by treating a 2-(alkylthio)benzaldehyde oxime with a halogen compound; a method for producing a 3-halo-1,2-benzisothiazole characterized by treating a 1,2-benzisothiazole with a halogenating agent; and a method for producing a 1-(1,2-benzisothiazol-3-yl)piperazine characterized by reacting the obtained 3-halo-1,2-benzisothiazoles with a piperazine. By the method of the present invention, 1,2-benzisothiazoles and 3-halo-1,2-benzisothiazoles, which are useful as intermediates for pharmaceutical compositions such as psychotropic agents, and 1-(1,2-benzisothiazole-3-yl)piperazines synthesized therefrom can be obtained in a high yield without using expensive starting materials by shorter and simpler process than conventional methods.Type: GrantFiled: May 19, 1997Date of Patent: January 5, 1999Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hirokazu Kagano, Hiroshi Goda, Mikio Yamamoto, Shigeki Sakaue, Miki Toudou
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Patent number: 5821388Abstract: The present invention provides processes for preparing .alpha.-halo(methylthio)acetophenone and .alpha.-halo (methylsulfonyl)acetophenone in an industrially simple and economically advantageous manner. In the invention, methylthioacetophenone is halogenated with a halogenating agent in the presence of an alcohol, giving .alpha.-halo(methylthio) acetophenone. Then the compound is oxidized with an oxidizing agent, giving .alpha.-halo(methylsulfonyl)acetophenone.Type: GrantFiled: March 27, 1997Date of Patent: October 13, 1998Assignee: Sumitomo Seika Chemical Co., Ltd.Inventors: Junichi Sakamoto, Hideaki Nishiguchi, Hiroshi Goda
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Patent number: 5811571Abstract: The present invention is directed to a process for preparing an aromatic or heteroaromatic sulfonyl halide represented by the formula (3), the process comprising halogenating an aromatic or heteroaromatic methyl sulfide represented by the formula (1) or an aromatic or heteroaromatic methyl sulfoxide represented by the formula (2) with a halogenating agent in the presence of waterAr.paren open-st.SCH.sub.3-m X.sub.m).sub.n (1)Ar.paren open-st.SOCH.sub.3-m X.sub.m).sub.n (2)Ar.paren open-st.SO.sub.2 Y).sub.n (3)wherein Ar is an aromatic ring or a heteroaromatic ring which is unsubstituted or which has an optional substituent or substituents, X and Y are halogen atoms, m is an integer of 0 to 3 and n is 1 or 2. According to the present invention, aromatic or heteroaromatic sulfonyl halides can be produced industrially cheaply and easily.Type: GrantFiled: December 13, 1996Date of Patent: September 22, 1998Inventors: Hitoshi Karino, Hiroshi Goda, Jun-ichi Sakamoto, Katsuhiko Yoshida, Hideaki Nishiguchi
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Patent number: 5810907Abstract: A continuous melting apparatus for a low melting point metal is disclosed. The apparatus includes a melting furnace main body (5) forming a combustion chamber (6) surrounded by a refractory lining, a crucible (1) formed with a tapping orifice (2) at an appropriate position of a body and housed at the center portion of said combustion chamber, a burner (8) provided on a side wall portion of said melting furnace main body (5) for heating said crucible (1) in said combustion chamber (6) and a receptacle (6, 13) for receiving a melt flowing out through said tapping orifice (2) of said crucible (1). In the continuous melting apparatus, with employing a melting method of burner heating type which is inexpensive, easy to handle and maintenance, with successfully minimizing oxidation loss which was the shortcoming of the burner type. Also, generation of corundum on the furnace wall surface due to reaction of the aluminum melt and the furnace wall can be successfully avoided.Type: GrantFiled: July 9, 1997Date of Patent: September 22, 1998Assignee: Nippon Crucible Co., Ltd.Inventors: Tamio Okada, Hideo Yoshikawa, Tomohiro Hatanaka, Michio Matsuura, Toshiaki Sano, Masato Yoshida, Hiroshi Goda
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Patent number: 5773626Abstract: A method for producing a 1,2-benzisothiazol-3-one, having the steps of carrying out a reaction of a 2-(alkylthio)benzaldehyde with a hydroxylamine to give a 2-(alkylthio)benzaldehyde oxime and carrying out a reaction of the 2-(alkylthio)benzaldehyde oxime with a halogenating agent; and a method for producing a 1,2-benzisothiazol-3-one, having the steps of carrying out a reaction of a 2-halobenzonitrile with an alkanethiol in a heterogeneous solvent system in the presence of a base to give a 2-(alkylthio)benzonitrile and carrying out a reaction of the 2-(alkylthio)benzonitrile with an halogenating agent in the presence of water.Type: GrantFiled: September 18, 1996Date of Patent: June 30, 1998Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hirokazu Kagano, Hiroshi Goda, Katsuhiko Yoshida, Mikio Yamamoto, Shigeki Sakaue
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Patent number: 5756806Abstract: The present invention provides a compound represented by the general formula (I): ##STR1## wherein X represents Cl or Br, a process for preparation of the same and a process for preparation of 3-substituted benzisothiazole by reaction of the compound (I) with a piperazine compound.Type: GrantFiled: May 21, 1997Date of Patent: May 26, 1998Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hiroshi Goda, Junichi Sakamoto, Shigeki Sakaue, Sakae Kajihara, Miki Todo
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Patent number: 5744609Abstract: A method for producing an alkylthiobenzamide by carrying out a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying out a reaction of an alkylthiobenzamide with a halogen in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying cut a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent and a subsequent reaction with a halogen; and a method for producing a 1,2-benzisothiazol-3-one by carrying out a reaction of a 2-(alkylthio)benzamide with a halogenating agent.Type: GrantFiled: April 7, 1997Date of Patent: April 28, 1998Assignees: Sumitomo Seika Chemicals Co., Ltd., Sumitomo Chemical Co., Ltd.Inventors: Hirokazu Kagano, Hiroshi Goda, Shigeki Sakaue
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Patent number: 5741933Abstract: The present invention provides a process for preparing an aromatic or heteroaromatic thiol represented by the formula (2), the process comprising hydrolyzing an aromatic or heteroaromatic halogenated methyl sulfide represented by the formula (1)Ar.paren open-st.SCH.sub.3-m X.sub.m).sub.n (1)Ar.paren open-st.SH).sub.n (2)wherein Ar is an aromatic or heteroaromatic ring which has no substituent or which has an optional substituent or substituents, X is a halogen atom, m is an integer of 1 to 3 and n is 1 or 2.According to the present invention, an aromatic or heteroaromatic thiol can be prepared at a commercially low cost and with ease.Type: GrantFiled: July 24, 1996Date of Patent: April 21, 1998Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hiroshi Goda, Mikio Yamamoto, Jun-ichi Sakamoto, Hitoshi Karino
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Patent number: 5679827Abstract: The present invention provides a compound represented by the general formula (I): ##STR1## wherein X represents Cl or Br, a process for preparation of the same and a process for preparation of 3-substituted benzisothiazole by reaction of the compound (I) with a piperazine compound.Type: GrantFiled: April 10, 1996Date of Patent: October 21, 1997Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hiroshi Goda, Junichi Sakamoto, Shigeki Sakaue, Sakae Kajihara, Miki Todo
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Patent number: 5672751Abstract: A method for producing an alkylthiobenzamide by carrying out a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying out a reaction of an alkylthiobenzamide with a halogen in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying out a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent and a subsequent reaction with a halogen; and a method for producing a 1,2-benzisothiazol-3-one by carrying out a reaction of a 2-(alkylthio)benzamide with a halogenating agent.Type: GrantFiled: December 29, 1995Date of Patent: September 30, 1997Assignees: Sumitomo Seika Chemicals Co., Ltd., Sumitomo Chemical Co., Ltd.Inventors: Hirokazu Kagano, Hiroshi Goda, Shigeki Sakaue
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Patent number: 5633384Abstract: A method for producing a 1,2-benzisothiazol-3-one, having the steps of carrying out a reaction of a 2-(alkylthio)benzaldehyde with a hydroxylamine to give a 2-(alkylthio)benzaldehyde oxime and carrying out a reaction of the 2-(alkylthio)benzaldehyde oxime with a halogenating agent; and a method for producing a 1,2-benzisothiazol-3-one, having the steps of carrying out a reaction of a 2-halobenzonitrile with an alkanethiol in a heterogeneous solvent system in the presence of a base to give a 2-(alkylthio)benzonitrile and carrying out a reaction of the 2-(alkylthio)benzonitrile with an halogenating agent in the presence of water.Type: GrantFiled: June 6, 1995Date of Patent: May 27, 1997Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hirokazu Kagano, Hiroshi Goda, Katsuhiko Yoshida, Mikio Yamamoto, Shigeki Sakaue
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Patent number: 5508416Abstract: A method for producing an alkylthiobenzamide by carrying out a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying out a reaction of an alkylthiobenzamide with a halogen in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying out a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent and a subsequent reaction with a halogen; and a method for producing a 1,2-benzisothiazol-3-one by carrying out a reaction of a 2-(alkylthio)benzamide with a halogenating agent.Type: GrantFiled: November 17, 1994Date of Patent: April 16, 1996Assignees: Sumitomo Seika Chemicals Co., Ltd., Sumitomo Chemical Co., Ltd.Inventors: Hirokazu Kagano, Hiroshi Goda, Shigeki Sakaue
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Patent number: 5352821Abstract: The present invention is directed to novel 2,5-dichlorophenylthioglycolic acid derivative, a process for their production and a process for producing the desired product 2,5-dichlorophenylthioglycolic acid derived from said novel compounds. 2,5-dichlorophenylthioglycolic acid derivative of the present invention can be obtained by reacting 2,4,5-trichlorobenzensulfonates and thioglycolic acid in the presence of base, and said desired product can be obtained by desulfonating said compound in an aqueous solution of mineral acid. Novel 4-carboxymethylthio-2,5-dichlorobenzenesulfonates of the present invention can be used advantageously as an intermediate for the production of 2,5-dichlorophenylthioglycolic acid. The use of said intermediate makes it possible to obtain the desired product in a decreased process steps with high yield. In addition, it poses no problem of environmental pollution as pointed out with conventional methods because it uses no heavy metals.Type: GrantFiled: February 19, 1993Date of Patent: October 4, 1994Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hiroshi Goda, Nario Kimura, Naohiro Yoshikawa, Katsuhiko Yoshida
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Patent number: 5310940Abstract: A method of producing a dibenzoxazolyl thiophene represented by the formula ##STR1## wherein R"' represents a hydrogen, an alkyl of 1-8 carbons, a cycloalkyl, a phenyl, a substituted phenyl or a benzyl, which includes: reacting a thiophene-2,5-dicarboxylic acid diester represented by the formula ##STR2## wherein R' represents a branched alkyl of 3-5 carbons, phenyl, or tolyl, with an aminophenol represented by the formula ##STR3## wherein R"' is the same as before, in the presence of an acid catalyst, wherein the acid catalyst is boric acid, phosphoric acid, polyphosphoric acid, zinc chloride, ferric chloride, or sulfuric acid.Type: GrantFiled: January 19, 1993Date of Patent: May 10, 1994Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hiroshi Goda, Nario Kimura, Satoshi Kimura, Naohiro Yoshikawa, Masaki Teramoto, Yoshihide Masuda, Yuuji Matuzaki