Patents by Inventor Ikuo Nozue
Ikuo Nozue 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: 6270939Abstract: A radiation-sensitive resin composition comprising a solution of an alkali-soluble resin and a radiation-sensitive compound in a solvent comprising a monooxymonocarboxylic acid ester. This composition has a high storage stability (i.e., a very small amount of fine particles are formed during storage) and is suited for use as a resist for making integrated circuits.Type: GrantFiled: August 16, 2000Date of Patent: August 7, 2001Assignee: JSR CorporationInventors: Yoshihiro Hosaka, Ikuo Nozue, Masashige Takatori, Yoshiyuki Harita
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Patent number: 6228554Abstract: A radiation-sensitive resin composition comprising a solution of an alkali-soluble resin and a radiation-sensitive compound in a solvent comprising a monooxymono-carboxylic acid ester. This composition has a high storage stability (i.e., a very small amount of fine particles are formed during storage) and is suited for use as a resist for making integrated circuits.Type: GrantFiled: October 8, 1999Date of Patent: May 8, 2001Assignee: JSR CorporationInventors: Yoshihiro Hosaka, Ikuo Nozue, Masashige Takatori, Yoshiyuki Harita
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Patent number: 6020104Abstract: A radiation-sensitive resin composition comprising a solution of an alkali-soluble resin and a radiation-sensitive compound in a solvent comprising a monooxymono-carboxylic acid ester. This composition has a high storage stability (i.e., a very small amount of fine particles are formed during storage) and is suited for use as a resist for making integrated circuits.Type: GrantFiled: January 27, 1999Date of Patent: February 1, 2000Assignee: JSR CorporationInventors: Yoshihiro Hosaka, Ikuo Nozue, Masashige Takatori, Yoshiyuki Harita
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Patent number: 5925492Abstract: A radiation-sensitive resin composition comprising a solution of an alkali-soluble resin and a radiation-sensitive compound in a solvent comprising a monoxymono-carboxylic acid ester. This composition has a high storage stability (i.e., a very small amount of fine particles are formed during storage) and is suited for use as a resist for making integrated circuits.Type: GrantFiled: September 15, 1997Date of Patent: July 20, 1999Assignee: JSR CorporationInventors: Yoshihiro Hosaka, Ikuo Nozue, Masashige Takatori, Yoshiyuki Harita
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Patent number: 5753406Abstract: A radiation-sensitive resin composition comprising an alkali-soluble novolak resin and a 1,2-quinonediazide compound, wherein the alakli-soluble novolak resin comprises a mixture of:95-50 parts by weight of Resin A having a standard polystyrene-reduced weight-average molecular weight of 2,000-20,000 ?Resin A is at least one resin selected from the group consisting of a resin obtained by polycondensation of m-cresol and at least one phenol represented by the structural formula (I) or (I'): ##STR1## wherein m is 2 or 3, with at least one aldehyde and a resin obtained by polycondensation of m-cresol, p-cresol and at least one phenol represented by the above structural formula (I) or (I') with at least one aldehyde! and5-50 parts by weight of Resin B having a standard polystyrene-reduced weight-average molecular weight of 200-2,000 ?Resin B is a resin obtained by polycondensation of at least one phenol represented by the structural formula (II): ##STR2## wherein n is 0, 1, 2 or 3, with at least one aldehyde!.Type: GrantFiled: February 16, 1993Date of Patent: May 19, 1998Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Satoshi Miyashita, Akihiro Yamanouchi, Ikuo Nozue, Takao Miura
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Patent number: 5494784Abstract: A radiation-sensitive resin composition comprising a solution of an alkali-soluble resin and a radiation-sensitive compound in a solvent comprising a monooxymonocarboxylic acid ester. This composition has a high storage stability (i.e., a very small amount of fine particles are formed during storage) and is suited for use as a resist for making integrated circuits.Type: GrantFiled: December 16, 1994Date of Patent: February 27, 1996Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Yoshihiro Hosaka, Ikuo Nozue, Masashige Takatori, Yoshiyuki Harita
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Patent number: 5478691Abstract: A radiation-sensitive resin composition comprising an alkali-soluble novolak resin and a 1,2-quinonediazide compound, wherein the alakli-soluble novolak resin comprises a mixture of:95-50 parts by weight of Resin A having a standard polystyrene-reduced weight-average molecular weight of 2,000-20,000 [Resin A is at least one resin selected from the group consisting of a resin obtained by polycondensation of m-cresol and at least one phenol represented by the structural formula (I) or (I'): ##STR1## wherein m is 2 or 3, with at least one aldehyde and a resin obtained by polycondensation of m-cresol, p-cresol and at least one phenol repreented by the above structural formula (I) or (I') with at least one aldehyde] and5-50 parts by weight of Resin B having a standard polystyrene-reduced weight-average molecular weight of 200-2,000 [Resin B is a resin obtained by polycondensation of at least one phenol represented by the structural formula (II): ##STR2## wherein n is 0, 1, 2 or 3, with at least one aldehyde].Type: GrantFiled: June 13, 1994Date of Patent: December 26, 1995Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Satoshi Miyashita, Akihiro Yamanouchi, Ikuo Nozue, Takao Miura
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Patent number: 5405720Abstract: A radiation-sensitive resin composition comprising a solution of an alkali-soluble resin and a radiation-sensitive compound in a solvent comprising a monooxymonocarboxylic acid ester. This composition has a high storage stability (i.e., a very small amount of fine particles are formed during storage) and is suited for use as a resist for making integrated circuits.Type: GrantFiled: February 15, 1994Date of Patent: April 11, 1995Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Yoshihiro Hosaka, Ikuo Nozue, Masashige Takatori, Yoshiyuki Harita
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Patent number: 5238774Abstract: A radiation-sensitive resin composition comprising a solution of an alkali-soluble resin and a radiation-sensitive compound in a solvent comprising a monooxymonocarboxylic acid ester. This composition has a high storage stability (i.e., a very small amount of fine particles are formed during storage) and is suited for use as a resist for making integrated circuits.Type: GrantFiled: June 4, 1991Date of Patent: August 24, 1993Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Yoshihiro Hosaka, Ikuo Nozue, Masashige Takatori, Yoshiyuki Harita
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Patent number: 5215857Abstract: A radiation-sensitive resin composition comprising a solution of an alkali-soluble resin and a radiation-sensitive compound in a solvent comprising a monooxymonocarboxylic acid ester. This composition has a high storage stability (i.e., a very small amount of fine particles are formed during storage) and is suited for use as a resist for making integrated circuits.Type: GrantFiled: July 3, 1991Date of Patent: June 1, 1993Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Yoshihiro Hosaka, Ikuo Nozue, Masashige Takatori, Yoshiyuki Harita
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Patent number: 5087548Abstract: A positive type radiation-sensitive resin composition which comprises a 1,2-quinonediazide compound and an alkali-soluble novolac resin produced by poly-condensing phenols represented by the formulas (I) and (II) in a molar ratio of (I)/(II) of 1/99 to 100/0 with a carbonyl compound: ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, represent hydroxyl groups, hydrogen atoms, alkyl groups, aryl groups, aralkyl groups, alkenyl groups, halogen atoms, alkoxy groups, alkoxycarbonyl groups, aroxycarbonyl groups, alkanoyloxy groups, aroyloxy groups, acyl groups, cyano groups or nitro groups, ##STR2## wherein R.sup.3, R.sup.4 and R.sup.5, which may be the same or different, represent hydrogen atoms, alkyl groups, aryl groups, aralkyl groups, alkenyl groups, halogen atoms, alkoxy groups, alkoxycarbonyl groups, aroxycarbonyl groups, alkanoyloxy groups, aroyloxy groups, acyl groups, cyano groups or nitro groups.Type: GrantFiled: December 5, 1988Date of Patent: February 11, 1992Assignee: Japan Synthetic Rubber Co., Inc.Inventors: Yoshihiro Hosaka, Ikuo Nozue, Masashige Takatori, Yoshiyuki Harita, Kiyoshi Honda
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Patent number: 4626556Abstract: A novel raddery organopolysilsesquioxane having lower alkyl groups and alkenyl groups as the side chains and, if necessary, having aryl groups and/or hydrogen atoms bonded as the side chains can be produced by adding water to a solution of a lower-alkyltrihalogenosilane, an alkenyltrihalogenosilane, and, if necessary, an aryltrihalogenosilane and/or a trihalogenosilane in an organic solvent, and heating the resulting mixture. The aforesaid organopolysilsesquioxane can be used for forming a patterned surface-protecting layer or insulating layer for a semiconductor device, in the form of a mixture with a compound which generates crosslinking-reaction-active species upon irradiation with light or an ionizing radiation.Type: GrantFiled: September 25, 1985Date of Patent: December 2, 1986Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Ikuo Nozue, Osahiko Tomomitsu, Yoshiji Yumoto, Yoshio Matsumura
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Patent number: 4399266Abstract: A laddery lower alkylpolysilsesquioxane represented by the formula: ##STR1## wherein R and R' represent same or different lower alkyl groups, and n represents an average degree of polymerization, said laddery lower alkylpolysilsesquioxane having a heat-resistant thin film-formability, characterized in that 15 to 30% by weight of the lower alkylpolysilsesquioxane is occupied by the portion having a standard polystyrene-reduced molecular weight of 20,000 or less as measured by gel permeation chromatography. Said silicone resin in which R and R' are methyl is prepared by dissolving CH.sub.3 SiCl.sub.3 in a ketone or an ether, adding water to this solution with stirring to hydrolyze CH.sub.3 SiCl.sub.3, condensing the hydrolyzate and, if necessary, subjecting the resulting condensate to a treatment for adjusting the proportion of the low molecular weight portion in the product.Type: GrantFiled: March 2, 1982Date of Patent: August 16, 1983Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Yoshio Matsumura, Ikuo Nozue, Osahiko Tomomitsu, Takashi Ukachi, Taro Suminoe
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Patent number: 4349664Abstract: Doped acetylene polymers are produced by immersing an acetylene polymer under an inert gas atmosphere in an organic solvent solution of a dopant selected from the group consisting of a platinum group metal complex, a carbonium salt, an oxonium salt and a parabenzoquinone derivative. According to this process, a doped acetylene polymer having any desired electrical conductivity can be produced and the doped acetylene polymer thus obtained has excellent properties as an organic semiconductor material for solar batteries, various sensors, etc.Type: GrantFiled: July 9, 1980Date of Patent: September 14, 1982Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Yoshio Matsumura, Ikuo Nozue, Takashi Ukachi