Patents by Inventor Hajime Komada
Hajime Komada 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: 11944456Abstract: A ceramic guide device includes a columnar ceramic guide including a first portion including a first end, a second portion including a second end and having a smaller diameter than a diameter of the first portion, and a third portion disposed between the first portion and the second portion, the columnar ceramic guide provided with an insertion hole through which a long wire electrode can be inserted from the first end to the second end; and the long wire electrode that penetrates through the insertion hole, the long wire electrode including a first protruding portion projecting from the first end, and a second protruding portion projecting from the second end.Type: GrantFiled: January 31, 2019Date of Patent: April 2, 2024Assignees: KYOCERA Corporation, TOHOKU UNIVERSITYInventors: Daisuke Komada, Hajime Mushiake, Tomokazu Ohshiro
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Patent number: 9233065Abstract: Disclosed is a method for producing resin particles, which can impart a desired function to the surface of resin particles efficiently and simply. Also disclosed are resin particles produced by the method. The method produces resin particles by melting and mixing an acidic-group-containing thermoplastic resin or elastomer with filler particles and a water-soluble material to give a resin composition containing resin fine particles formed by the thermoplastic resin and the filler particles and dispersed in a matrix including the water-soluble material; and removing the matrix component from the resin composition, to give the resin particles. The resulting resin particles each include a core particle including the acidic-group-containing thermoplastic resin or elastomer, and the filler particles immobilized on the outside of the core particle. The acidic group is preferably carboxyl group or carboxylic anhydride group.Type: GrantFiled: May 22, 2008Date of Patent: January 12, 2016Assignee: DAICEL-EVONIK LTD.Inventors: Hideki Matsui, Yoshiki Nakaie, Hajime Komada
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Patent number: 8173262Abstract: In a molded composite article, a resin member comprising a non-urethane thermoplastic resin and a resin member comprising a thermoplastic polyurethane resin are directly joined with each other. The non-urethane thermoplastic resin comprises at least one member selected from the group consisting of a polyamide component having an alicyclic ring and an amino group-containing compound, or each of the non-urethane thermoplastic resins and the thermoplastic polyurethane has a polyether segment. Even if the base resin is a non-urethane thermoplastic resin, the present invention provides a direct and firm bonding between the non-urethane thermoplastic resin member and the thermoplastic polyurethane resin member.Type: GrantFiled: September 30, 2004Date of Patent: May 8, 2012Assignee: Daicel-Evonik Ltd.Inventors: Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta
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Publication number: 20110244007Abstract: Disclosed are a method for manufacturing spherical composite particles, by which desired functions are simply and efficiently imparted to the surface or inside of the spherical composite particles; and spherical composite particles obtained by the method.Type: ApplicationFiled: November 27, 2009Publication date: October 6, 2011Inventors: Hideki Matsui, Yoshiki Nakaie, Hajime Komada
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Patent number: 8029910Abstract: The present invention is directed to a composite comprising a resin element comprising a resin composition and a vulcanized rubber element formed by vulcanizing an unvulcanized rubber, wherein the resin composition comprises a resin, a vulcanization-activating agent for improving adhesiveness of the resin to a rubber, and a stabilizer, and the resin composition and the vulcanized rubber are directly joined together.Type: GrantFiled: May 4, 2010Date of Patent: October 4, 2011Assignee: Daicel-Evonik Ltd.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda, Hiroaki Arita, Naoki Wakita
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Patent number: 7989540Abstract: A resin composition comprises a resin, a vulcanization-activating agent, and a stabilizer. The vulcanization-activating agent may be a compound having a plurality of polymerizable unsaturated bonds (e.g., a compound having a plurality of (meth)acryloyl groups). The stabilizer may be an antioxidant, or a light stabilizer (particularly, a stabilizer is capable of capturing a radical). Use of the resin composition as a resin material ensures to directly join between a resin and a rubber certainly and firmly. The proportion of the vulcanization-activating agent may be about 0.1 to 10 parts by weight relative to 100 parts by weight of the resin. The proportion of the stabilizer may be about 0.01 to 5 parts by weight relative to 100 parts by weight of the resin. The present invention provides a resin composition excellent in adhesiveness to a rubber.Type: GrantFiled: September 12, 2003Date of Patent: August 2, 2011Assignee: Daicel-Evonik Ltd.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda, Hiroaki Arita, Naoki Wakita
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Publication number: 20100215964Abstract: A resin composition comprises a resin, a vulcanization-activating agent, and a stabilizer. The vulcanization-activating agent may be a compound having a plurality of polymerizable unsaturated bonds (e.g., a compound having a plurality of (meth)acryloyl groups). The stabilizer may be an antioxidant, or a light stabilizer (particularly, a stabilizer is capable of capturing a radical). Use of the resin composition as a resin material ensures to directly join between a resin and a rubber certainly and firmly. The proportion of the vulcanization-activating agent may be about 0.1 to 10 parts by weight relative to 100 parts by weight of the resin. The proportion of the stabilizer may be about 0.01 to 5 parts by weight relative to 100 parts by weight of the resin. The present invention provides a resin composition excellent in adhesiveness to a rubber.Type: ApplicationFiled: May 4, 2010Publication date: August 26, 2010Inventors: Toru IKUTA, Hajime KOMADA, Mitsuteru MUTSUDA, Hiroaki ARITA, Naoki WAKITA
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Publication number: 20100178309Abstract: Disclosed is a method for producing resin particles, which can impart a desired function to the surface of resin particles efficiently and simply. Also disclosed are resin particles produced by the method. The method produces resin particles by melting and mixing an acidic-group-containing thermoplastic resin or elastomer with filler particles and a water-soluble material to give a resin composition containing resin fine particles formed by the thermoplastic resin and the filler particles and dispersed in a matrix including the water-soluble material; and removing the matrix component from the resin composition, to give the resin particles. The resulting resin particles each include a core particle including the acidic-group-containing thermoplastic resin or elastomer, and the filler particles immobilized on the outside of the core particle. The acidic group is preferably carboxyl group or carboxylic anhydride group.Type: ApplicationFiled: May 22, 2008Publication date: July 15, 2010Inventors: Hideki Matsui, Yoshiki Nakaie, Hajime Komada
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Patent number: 7740943Abstract: In a molded composite article formed by directly bonding a resin member comprising a polyamide-series resin to a resin member comprising a thermoplastic polyurethane-series resin, the polyamide-series resin comprises a polyamide block copolymer containing (A) a polyether segment having at least one terminal imino group. The polyamide-series resin may comprise a polyamide-series resin having a free amino group in a concentration of not less than about 10 mmol/kg. The molded composite article is producible, for example, by heating at least one of the polyamide-series resin and the thermoplastic polyurethane-series resin to bond the former to the latter. Thus obtained molded composite article is suitable for a member of a shoe and an industrial roll. In such a process, the polyamide-series resin member and the thermoplastic polyurethane-series resin member both of which are different in nature from each other can be directly and firmly bonded together.Type: GrantFiled: May 1, 2005Date of Patent: June 22, 2010Assignee: Daicel-Evonik Ltd.Inventors: Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta
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Publication number: 20100128217Abstract: The present invention provides a method of producing a polarized lens capable of obtaining a high-quality polarized lens used for sunglasses and the like. More specifically, the present invention is a method of producing a polarized lens, comprising the steps of obtaining a lens made of resin having a polarizing film on a convex surface thereof, masking the convex surface thereof, and dyeing a non-masked surface thereof.Type: ApplicationFiled: April 4, 2008Publication date: May 27, 2010Inventors: Hajime Komada, Takashi Yoshimura
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Patent number: 7553912Abstract: A resin comprises a resin containing a vulcanization-activating agent, or crosslinkable group-containing resin (e.g., a resin having an unsaturated bond). Moreover, a composite dispersion may be formed by a combination of a specific resin and rubber [e.g., (a) a combination of a resin, and an unvulcanized rubber containing a vulcanizing agent and a vulcanization-activating agent at a specific ratio; (b) a combination of a polyamide-series resin, and an unvulcanized rubber containing a vulcanizing agent and a polyalkenylene at a specific ratio; (c) a combination of a resin and a silicone-series unvulcanized rubber; and (d) a combination of a polyphenylene ether-series resin containing a polyalkenylene, and an unvulcanized rubber containing a sulfur or sulfur-containing organic compound as a vulcanizing agent].Type: GrantFiled: July 4, 2003Date of Patent: June 30, 2009Assignee: Daicel-Evonik Ltd.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda
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Patent number: 7534494Abstract: In a molded composite article formed by directly joining a resin member comprising a polyamide-series resin to a resin member comprising a thermoplastic polyurethane-series resin, as the polyamide-series resin, a polyamide-series resin having an amino group of not less than 10 mmol/kg is used. The molded composite article may be produced by heating at least any one of the polyamide-series resin and the thermoplastic polyurethane-series resin to join to the other resin.Type: GrantFiled: December 1, 2003Date of Patent: May 19, 2009Assignee: Daicel-Evonik Ltd.Inventors: Naoki Wakita, Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta
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Publication number: 20070292703Abstract: A resin composition comprises a resin, a vulcanization-activating agent, and a stabilizer. The vulcanization-activating agent may be a compound having a plurality of polymerizable unsaturated bonds (e.g., a compound having a plurality of (meth)acryloyl groups). The stabilizer may be an antioxidant, or a light stabilizer (particularly, a stabilizer is capable of capturing a radical). Use of the resin composition as a resin material ensures to directly join between a resin and a rubber certainly and firmly. The proportion of the vulcanization-activating agent may be about 0.1 to 10 parts by weight relative to 100 parts by weight of the resin. The proportion of the stabilizer may be about 0.01 to 5 parts by weight relative to 100 parts by weight of the resin. The present invention provides a resin composition excellent in adhesiveness to a rubber.Type: ApplicationFiled: September 12, 2003Publication date: December 20, 2007Applicant: DAICEL-DEGUSSA LTD.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda, Hiroaki Arita, Naoki Wakita
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Publication number: 20070232753Abstract: A process for production of a powder suitable for use in a process for the layer-by-layer moldless production of a three-dimensional shaped article, in which regions of the respective powder layer are selectively melted via input of electromagnetic energy, comprising mixing of a polymer or copolymer with at least one water-soluble polymeric polyol, the dissolution of the mixture in water to form a dispersion, the isolation of the polymer particles or copolymer particles from the dispersion, and the washing and drying of the isolated polymer particles or isolated copolymer particles; a powder which comprises a polymer powder or copolymer powder with from 0.001% by weight to 5% by weight content of at least one polymeric polyol, the polymeric polyol having been selected from the group consisting of polyethylene glycols and polyvinyl alcohols; the powder formed from the process; method of using the powder; and a shaped article formed from the powder.Type: ApplicationFiled: March 30, 2007Publication date: October 4, 2007Applicant: DEGUSSA GmbHInventors: Sylvia MONSHEIMER, Hajime Komada, Hideki Matsui, Yoshiki Nakaie
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Publication number: 20070182070Abstract: Three-dimensional shaped products are prepared by a layer-by-layer moldless production process in which at least one powder layer is provided, regions of the respective powder layer are selective melted via input of electromagnetic energy, wherein the powder of the powder layer contains at least one polymer powder or copolymer powder produced from a dispersion which contains at least one polymer or copolymer and which contains a water-soluble component, the water-soluble component containing at least one oligosaccharide.Type: ApplicationFiled: February 6, 2007Publication date: August 9, 2007Applicant: DEGUSSA AGInventors: Sylvia MONSHEIMER, Maik Grebe, Hideki Matsui, Hajime Komada
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Publication number: 20070172670Abstract: In a molded composite article formed by directly bonding a resin member comprising a polyamide-series resin to a resin member comprising a thermoplastic polyurethane-series resin, the polyamide-series resin comprises a polyamide block copolymer containing (A) a polyether segment having at least one terminal imino group. The polyamide-series resin may comprise a polyamide-series resin having a free amino group in a concentration of not less than about 10 mmol/kg. The molded composite article is producible, for example, by heating at least one of the polyamide-series resin and the thermoplastic polyurethane-series resin to bond the former to the latter. Thus obtained molded composite article is suitable for a member of a shoe and an industrial roll. In such a process, the polyamide-series resin member and the thermoplastic polyurethane-series resin member both of which are different in nature from each other can be directly and firmly bonded together.Type: ApplicationFiled: May 1, 2005Publication date: July 26, 2007Inventors: Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta
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Publication number: 20070122615Abstract: In a molded composite article, a resin member comprising a non-urethane-series thermoplastic resin and a resin member comprising a thermoplastic polyurethane-series resin are directly joined with each other; and the non-urethane-series thermoplastic resin is a non-urethane-series thermoplastic resin (Ib) or (IIb), and the non-urethane-series thermoplastic resin and the thermoplastic polyurethane-series resin fulfill a following requirement (Ia) or (IIa), (Ia): the non-urethane-series thermoplastic resin (Ib) comprises at least one member selected from the group consisting of a polyamide component having an alicyclic ring, and an amino group-containing compound, or (IIa): each of the non-urethane-series thermoplastic resin (IIb) and the thermoplastic polyurethane-series resin has a polyether segment. The resin composition (Ib) may be a resin composition (Ib-2) containing a non-urethane-series thermoplastic resin and the amino group-containing compound.Type: ApplicationFiled: September 30, 2004Publication date: May 31, 2007Inventors: Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta
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Patent number: 7175916Abstract: A composite of a resin member bonded to a vulcanized rubber member is obtained with using a rubber member vulcanized with a radical-generating agent (e.g., an organic peroxide) and a thermoplastic resin having at least 2 atoms, on average, selected from H and S atom per molecule, each atom having not less than 0.006 of an orbital interaction energy coefficient S represented by the following formula (1): S=(CHOMO,n)2/|Ec?EHOMO,n|+(CLUMO,n)2/|Ec?ELUMO,n| ??(1) wherein Ec: an orbital energy (eV) of a radical, CHOMO,n: a molecular-orbital coefficient of a highest occupied molecular orbital (HOMO) of an n-th H or S atom constituting a basic unit of the resin, EHOMO,n: an orbital energy (eV) of the HOMO, CLUMO,n: a molecular-orbital coefficient of a lowest unoccupied molecular orbital (LUMO) of the n-th H or S atom constituting the basic unit of the resin, ELUMO,n: an orbital energy (eV) of the LUMO, and above all represent a value calculated by a semiempirical molecular orbital method MOPACPM3.Type: GrantFiled: January 9, 2002Date of Patent: February 13, 2007Assignee: Daicel-Degussa Ltd.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda
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Publication number: 20060149000Abstract: A resin comprises a resin containing a vulcanization-activating agent, or crosslinkable group-containing resin (e.g., a resin having an unsaturated bond). Moreover, a composite dispersion may be formed by a combination of a specific resin and rubber [e.g., (a) a combination of a resin, and an unvulcanized rubber containing a vulcanizing agent and a vulcanization-activating agent at a specific ratio; (b) a combination of a polyamide-series resin, and an unvulcanized rubber containing a vulcanizing agent and a polyalkenylene at a specific ratio; (c) a combination of a resin and a silicone-series unvulcanized rubber; and (d) a combination of a polyphenylene ether-series resin containing a polyalkenylene, and an unvulcanized rubber containing a sulfur or sulfur-containing organic compound as a vulcanizing agent].Type: ApplicationFiled: July 4, 2003Publication date: July 6, 2006Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda
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Publication number: 20060108708Abstract: In a molded composite article formed by directly joining a resin member comprising a polyamide-series resin to a resin member comprising a thermoplastic polyurethane-series resin, as the polyamide-series resin, a polyamide-series resin having an amino group of not less than 10 mmol/kg is used. The molded composite article may be produced by heating at least any one of the polyamide-series resin and the thermoplastic polyurethane-series resin to join to the other resin.Type: ApplicationFiled: December 1, 2003Publication date: May 25, 2006Inventors: Naoki Wakita, Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta