Patents by Inventor Masahiro Fukuyama
Masahiro Fukuyama 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: 7392530Abstract: A disk 100 has an electronic circuit 10 for executing predetermined signal process and/or an electronic function part having a function of generating, writing or preserving some electronic data and at least one electrical conductive part 20 electrically connected to the electronic circuits and/or electronic function part. The disk 100 is to be set on the turntable 210, clamped by the clamp and driven for rotation for reading or writing data. The clamp has an electrical conductive part formed on locality corresponding to the electrical conductive part 20 of the disk 100.Type: GrantFiled: January 6, 2005Date of Patent: June 24, 2008Assignee: HIRO 21 CorporationInventors: Masahiro Fukuyama, Tetsuji Fukuyama
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Publication number: 20050155051Abstract: A disk 100 has an electronic circuit 10 for executing predetermined signal process and/or an electronic function part having a function of generating, writing or preserving some electronic data and at least one electrical conductive part 20 electrically connected to the electronic circuits and/or electronic function part. The disk 100 is to be set on the turntable 210, clamped by the clamp and driven for rotation for reading or writing data. The clamp has an electrical conductive part formed on locality corresponding to the electrical conductive part 20 of the disk 100.Type: ApplicationFiled: January 6, 2005Publication date: July 14, 2005Inventors: Masahiro Fukuyama, Tetsuji Fukuyama
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Patent number: 6608118Abstract: A melamine molded foam is produced by heat-compressing a melamine foam to a thickness of {fraction (1/1.2)} to {fraction (1/12)} to cause plastic deformation and temporarily fixing the shape; the heat-compression is performed under the conditions of from 210 to 350° C. for 3 minutes or longer; the heat-compression is preferably performed at a temperature within the range of lower than the decomposition temperature of the melamine monomer by 140° C. or less; in some of such molded foams, the shape recovery in the direction of thickness with the lapse of time is observed depending upon the heat-compression conditions; and the dimensional recovery ratio is 40% or less when allowed to stand at 23° C. for 200 hours.Type: GrantFiled: February 27, 2002Date of Patent: August 19, 2003Assignee: Inoac CorporationInventors: Yukishiro Kosaka, Genjiro Hattori, Hidero Suzuki, Satoshi Kondo, Masahiro Fukuyama, Atsushi Ichinose
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Patent number: 6503615Abstract: Disclosed is a wiping cleaner comprising a porous material of an open-cell structure having a density of 5 to 50 kg/m3, a tensile strength of 0.6 to 1.6 kg/cm2, an elongation at break of 8 to 20%, and cell number of 80 to 300 cells/25 mm and having a surface wherein upon wiping, particles are peeled from the wiping surface by friction.Type: GrantFiled: May 17, 2000Date of Patent: January 7, 2003Assignees: Inoac CorporationInventors: Takashi Horii, Masahiro Fukuyama, Akira Mizukami
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Publication number: 20020163105Abstract: A melamine molded foam is produced by heat-compressing a melamine foam to a thickness of {fraction (1/1.2)} to {fraction (1/12)} to cause plastic deformation and temporarily fixing the shape; the heat-compression is performed under the conditions of from 210 to 350° C. for 3 minutes or longer; the heat-compression is preferably performed at a temperature within the range of lower than the decomposition temperature of the melamine monomer by 140° C. or less; in some of such molded foams, the shape recovery in the direction of thickness with the lapse of time is observed depending upon the heat-compression conditions; and the dimensional recovery ratio is 40% or less when allowed to stand at 23° C. for 200 hours.Type: ApplicationFiled: February 27, 2002Publication date: November 7, 2002Applicant: INOAC CORPORATIONInventors: Yukishiro Kosaka, Genjiro Hattori, Hidero Suzuki, Satoshi Kondo, Masahiro Fukuyama, Atsushi Ichinose
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Patent number: 5610226Abstract: A composition is disclosed which contains about 80.0 to about 99.9% by weight of a (meth)acrylate monomer having a structure represented by a formula (I) or a mixture of the (meth)acrylate monomer and alkyl acrylate having an alkyl ester comprising alcohol of 1 to 8 carbon atoms, and about 20.0 to about 0.1% by weight of a crosslinking monomer copolymerizable with the (meth)acrylate monomer. The composition can be used in formulating elastomeric compositions having a favorable balance of properties.Type: GrantFiled: May 22, 1995Date of Patent: March 11, 1997Assignee: Sumitomo Chemical Company, LimitedInventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama, Tadaaki Nishiyama
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Patent number: 5548012Abstract: An automotive weather strip comprising a base material, a urethane layer and an adhesive composition formed between the base material and the urethane layer, wherein said base material comprises an ethylene/propylene rubber and said adhesive composition comprises components (A) to (E), the weight ratio of component (A) to component (B) being 60:40 to 40:60,(A) an epoxy group-containing acrylic elastomer,(B) an ethylene/.alpha.-olefin copolymer,(C) an organic peroxide,(D) at least one member selected from the group consisting of a primary amines and an imidazole compound, and(E) calcium oxide.The present invention can provide an automotive weather strip in which a base material containing the ethylene/propylene rubber has been strongly adhered to the urethane layer forming a surface layer, and which can be produced efficiently without requiring many production steps and also without using a hygienically undesirable solvent-containing adhesive.Type: GrantFiled: October 13, 1994Date of Patent: August 20, 1996Assignees: Sumitomo Chemical Company, Ltd., Toyoda Goesi Co., Ltd.Inventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama, Takeshi Naito, Masanori Aritake
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Patent number: 5523353Abstract: A rubber composition is provided which comprises 100 parts by weight of ethylene-(meth)-acrylate copolymer rubbers and/or ethylene-(meth)-acrylate-unsaturated glycidyl ester copolymers, 5 to 300 parts by weight of a hydroxide of a typical metallic element belonging to Group II or III of the Mendeleev's periodic table and 0.1 to 50 parts by weight of a metallic acrylate compound. This composition keeps properties required for rubbers such as tensile strength, elasticity, scorch resistance and processability at high levels and is excellent in wear resistance and flame retardance.Type: GrantFiled: May 2, 1994Date of Patent: June 4, 1996Assignee: Sumitomo Chemical Company, LimitedInventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama
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Patent number: 5462975Abstract: A rubber composition for sponge rubber which contains following components (A).about.(E) and satisfies the following requirements that the ratio by weight of (A)/(B) is 30/70.about.99/1 and the amount of component (C) is 50.about.400 parts by weight per 100 parts by weight of the total amount of components (A) and (B):(A): Epoxy group-containing acryl elastomer.(B): Ethylene copolymer which contains a carboxyl group(s) or a carboxylic anhydride group(s).(C): Hydroxyl compound of II or III group of typical metal element in periodic table.(D): Vulcanizer.(E): Foaming agent.The sponge rubber compositions of the invention can be used for sponge for insulator in the field of electricity, architecture, automobile and the like, because sponge rubber compositions of the invention have the characteristics of good heat resistance, good oil stability, high-foaming property, and good shape-retention.Type: GrantFiled: November 14, 1994Date of Patent: October 31, 1995Assignee: Sumitomo Chemical Co., Ltd.Inventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama
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Patent number: 5438101Abstract: A rubber composition is provided which comprises 100 parts by weight of ethylene-(meth)acrylate copolymer rubbers and/or ethylene-(meth)acrylate-unsaturated glycidyl ester copolymers, 5 to 300 parts by weight of a hydroxide of a typical metallic element belonging to Group II or III of the Mendeleev's periodic table and 0.1 to 50 parts by weight of a metallic acrylate compound. This composition keeps properties required for rubbers such as tensile strength, elasticity, scorch resistance and processability at high levels and is excellent in wear resistance and flame retardance.Type: GrantFiled: April 27, 1993Date of Patent: August 1, 1995Assignee: Sumitomo Chemical Company, LimitedInventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama
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Patent number: 5344881Abstract: A rubber composition which is vulcanizable with organic peroxides and provides vulcanized rubber excellent in oil resistance, heat resistance, low-temperature resistance and compression set.Type: GrantFiled: June 17, 1993Date of Patent: September 6, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Keisaku Yamamoto, Yoshio Tanimoto, Masahiro Fukuyama, Noriyasu Yasuda
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Patent number: 5292825Abstract: A vulcanizable epoxy group-containing elastomer composition is disclosed, comprising (A) an epoxy group-containing elastomer, (B) an organic compound containing at least two ##STR1## bonds, wherein X and Y, which may be the same or different, each represents an oxygen atom or a sulfur atom, per molecule or an organic compound containing at least two carboxyl groups per molecule, and (C) a phosphine compound represented by formula: ##STR2## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having from 1 to 4 carbon atoms; and R represents a hydrogen atom or an alkoxy group having from 1 to 4 carbon atoms. The composition has excellent compression set, particularly in a high temperature atmosphere, as well as excellent mechanical characteristics.Type: GrantFiled: September 7, 1990Date of Patent: March 8, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Keisaku Yamamoto, Hideaki Yamada, Masahiro Fukuyama
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Patent number: 5179156Abstract: Herein is disclosed a vulcanizable rubber composition comprising a copolymer rubber constituted of ethylene, propylene and nonconjugated polyene, wherein ethylene/propylene molar ratio is 78/22 to 97/3 and the total content of propylene and nonconjugated polyene is 6 to 30% by mole in said copolymer rubber. By the use of the rubber composition of the present invention, a vulcanized product excellent in tensile strength, heat resistance, oil resistance, compression set resistance and flex behavior can be obtained. The vulcanized product can be used as automobile parts and other innumerable articles such as socket cover, heat resistant hose, electric wire, condenser cap, heat resistant belt, vibration-proof rubber, hoses, weather strip, seal sponge, black side wall of tire, etc.Type: GrantFiled: March 30, 1992Date of Patent: January 12, 1993Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroyoshi Takao, Hiroyuki Harada, Kiyoyuki Sugimori, Nobuyuki Yoshida, Masahiro Fukuyama, Hideaki Yamada, Junichi Koshiba
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Patent number: 5118773Abstract: Herein is disclosed a vulcanizable rubber composition comprising a copolymer rubber constituted of ethylene, propylene and nonconjugated polyene, wherein ethylene/propylene molar ratio is 78/22 to 97/3 and the total content of propylene and nonconjugated polyene is 6 to 30% by mole in said copolymer rubber. By the use of the rubber composition of the present invention, a vulcanized product excellent in tensile strength, heat resistance, oil resistance, compression set resistance and flex behavior can be obtained. The vulcanized product can be used as automobile parts and other innumerable articles such as socket cover, heat resistant hose, electric wire, condenser cap, heat resistant belt, vibration-proof rubber, hoses weather strip, seal sponge, black side wall of tire, etc.Type: GrantFiled: October 30, 1991Date of Patent: June 2, 1992Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroyoshi Takao, Hiroyuki Harada, Kiyoyuki Sugimori, Nobuyuki Yoshida, Masahiro Fukuyama, Hideaki Yamada, Junichi Koshiba
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Patent number: 5075385Abstract: A vulcanizable elastomer composition is prepared by blending 100 parts by weight of a copolymer containing(A) 50-85% by mole of ethylene unit,(B) 10-45% by mole of an alkyl acrylate unit having the formula (I), ##STR1## wherein R.sub.1 is an alkyl having 1-8 carbon atoms, (C) 2-35% by mole of an alkoxyalkyl acrylate unit having the formula (II), ##STR2## wherein R.sub.2 is hydrogen or methyl, R.sub.3 is an alkylene having 1-4 carbon atoms, and R.sup.4 is an alkyl or alkoxyalkyl, each having 1-4 carbon atoms, and(D) up to 5% by mole of a glycidyl ester unit having the formula (III), ##STR3## wherein R.sup.5 is hydrogen or methyl, and 0.1-10 parts by weight of at least one vulcanizing agent.The vulcanizable composition can give vulcanizates of well-balanced properties having an improved low-temperature resistance and retaining excellent oil resistance.Type: GrantFiled: December 4, 1990Date of Patent: December 24, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Nobuyuki Yoshida, Hisao Tanaka, Masahiro Fukuyama
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Patent number: 5039756Abstract: A vulcanizable epoxy group-containing elastomer composition is disclosed, which comprises:(A) an epoxy group-containing elastomer having compounded therewith(B) an organic compound having at least two linkages, per molecule, of the formula ##STR1## wherein X and Y are each oxygen atom or sulfur atom, or one of X and Y is oxygen atom and the other is sulfur atom;(C) a quaternary ammonium salt and/or a quaternary phosphonium salt;(D) a compound having one linkage, per molecule, of the formula ##STR2## wherein Z is oxygen atom or sulfur atom; and (E) calcium oxide or a combination of calcium oxide and calcium hydroxide.Type: GrantFiled: July 7, 1989Date of Patent: August 13, 1991Assignee: Sumitomo Chemical Co., Ltd.Inventors: Keisaku Yamamoto, Nobuyuki Yoshida, Masahiro Fukuyama, Masahiro Ichinose
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Patent number: 4987199Abstract: The present invention provides an ethylene-acrylic acid ester copolymer giving low deformation during vulcanization and having a high dimensional accuracy and excellent properties, as well as a process for producing said copolymer.Type: GrantFiled: September 22, 1988Date of Patent: January 22, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroyoshi Takao, Nobuyuki Yoshida, Kiyosi Ikeda, Masahiro Fukuyama
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Patent number: 4985507Abstract: A vulcanizable elastomer composition is prepared by blending100 parts by weight of a copolymer containing(A) 50-85% by mole of ethylene unit,(B) 10-45% by mole of an alkyl acrylate unit having the formula (I), ##STR1## wherein R.sub.1 is an alkyl having 1-8 carbon atoms, (C) 2-35% by mole of an alkoxyalkyl acrylate unit having the formula (II), ##STR2## wherein R.sub.2 is hydrogen or methyl, R.sub.3 is an alkylene having 1-4 carbon atoms, and R.sub.4 is an alkyl or alkoxyalkyl, each having 1-4 carbon atoms, and(D) up to 5% by mole of a glycidyl ester unit having the formula (III), ##STR3## wherein R.sup.5 is hydrogen or methyl, and 0.1-10 parts by weight of at least one vulcanizing agent.The vulcanizable composition can give vulcanizates of well-balanced properties having an improved low-temperature resistance and retaining excellent oil resistance.Type: GrantFiled: May 15, 1989Date of Patent: January 15, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Nobuyuki Yoshida, Hisao Tanaka, Masahiro Fukuyama
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Patent number: 4933389Abstract: The present invention provides a thermoplastic elastomer composition excellent in oil resistance. This composition comprises a partially crosslinked mixture of (A) an ethylene copolymer rubber comprising ethylene and an acrylate ester or a methacrylate ester and (B) an olefin polymer and, if necessary, (C) an olefin copolymer rubber.Type: GrantFiled: January 31, 1989Date of Patent: June 12, 1990Assignee: Sumitomo Chemical Company, LimitedInventors: Tadashi Hikasa, Koichiro Ibuki, Tatsuo Hamanaka, Masahiro Fukuyama
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Patent number: 4882388Abstract: The present invention provides a rubber composition having a good balance among low temperature resistance, oil resistance, heat aging resistance, and mechanical strength characteristics. This rubber composition comprises a rubber component composed of an ethylenic copolymer rubber and an acrylic rubber, wherein the ethylenic copolymer rubber is a copolymer comprising (a) 50 to 85% by mole of ethylene, (b) 50 to 15% by mole of an acrylate and/or a methacrylate, and (c) 0.05 to 8% by mole, based on the total of said components (a) and (b), of a cross-linked point forming monomer; and the acrylic rubber contains at least 60% by mole of at least one monomer selected from among at least an alkyl acrylate, an alkyl methacrylate and an alkoxyalkyl acrylate.Type: GrantFiled: October 5, 1988Date of Patent: November 21, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Takashi Nakagawa, Sigelu Yagisita, Masahiro Fukuyama