Patents by Inventor Yuji Hashima
Yuji Hashima 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: 20220033335Abstract: A method can produce a divinyl ether compound having an alkylene skeleton from an alkanediol and acetylene at a rapid production rate and a high reaction yield. In the production method, a compound of formula (1) wherein R1 is an alkylene group having 4 to 20 carbon atoms, may be reacted with acetylene in the presence of an alkali metal catalyst to produce a compound of formula (2) and the reaction may be performed in the absence of a solvent.Type: ApplicationFiled: November 26, 2019Publication date: February 3, 2022Applicant: MARUZEN PETROCHEMICAL CO., LTD.Inventors: Takashi NANIKI, Jun ITO, Yuji HASHIMA, Wataru TSUCHIDA, Takashi TAKAHASHI, Ayato TAKAYAMA, Tomohiko SATO
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Patent number: 9242407Abstract: A cyclic-olefin-based thermoplastic resin for thermal imprint to be used in the production of a sheet or a film which contains at least one of skeletons represented by the following chemical equation 1 or the following chemical equation 2 in a main chain. The glass transition temperature Tg (° C.) and the value ([M]) of MFR at 260° C. satisfy the following equation 1, and [M]<30. The thermal imprint characteristics (transferability, mold release characteristic, and the like) are superior and the productivity (throughput) is improved.Type: GrantFiled: August 1, 2014Date of Patent: January 26, 2016Assignees: SCIVAX CORPORATION, MARUZEN PETROCHEMICAL CO., LTD.Inventors: Toshifumi Takemori, Yoshiaki Takaya, Takahito Mita, Tetsuya Iizuka, Yuji Hashima, Takahisa Kusuura, Mitsuru Fujii, Takuji Taguchi, Anupam Mitra
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Publication number: 20140339735Abstract: A cyclic-olefin-based thermoplastic resin for thermal imprint to be used in the production of a sheet or a film which contains at least one of skeletons represented by the following chemical equation 1 or the following chemical equation 2 in a main chain. The glass transition temperature Tg (° C.) and the value ([M]) of MFR at 260° C. satisfy the following equation 1, and [M]<30. The thermal imprint characteristics (transferability, mold release characteristic, and the like) are superior and the productivity (throughput) is improved.Type: ApplicationFiled: August 1, 2014Publication date: November 20, 2014Inventors: Takemori Toshifumi, Yoshiaki Takaya, Takahito Mita, Tetsuya Iizuka, Yuji Hashima, Takahisa Kusuura, Mitsuru Fujii, Takuji Taguchi, Anupam Mitra
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Patent number: 8721950Abstract: A resin for thermal imprint include a cyclic-olefin-based thermoplastic resin that contains at least one of skeletons represented by the following chemical equation 1 or the following chemical equation 2 in a main chain. The glass transition temperature Tg (° C.) and the value ([M]) of MFR at 260° C. satisfy the following equation 1, and [M]>10. The thermal imprint characteristics (transferability, mold release characteristic, and the like) are superior and the productivity (throughput) is improved. Tg(° C.Type: GrantFiled: November 1, 2012Date of Patent: May 13, 2014Assignees: Scivax Corporation, Maruzen Petrochemical Co., Ltd.Inventors: Takemori Toshifumi, Yoshiaki Takaya, Takahito Mita, Tetsuya Iizuka, Yuji Hashima, Takahisa Kusuura, Mitsuru Fujii, Takuji Taguchi, Anupam Mitra
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Patent number: 8324332Abstract: A resin for thermal imprint including a cyclic-olefin-based thermoplastic resin that contains at least one of skeletons represented by the following chemical equation 1 or the following chemical equation 2 in a main chain. The glass transition temperature Tg (° C.) and the value ([M]) of MFR at 260° C. satisfy the following equation 1, and [M]>10. The thermal imprint characteristics (transferability, mold release characteristic, and the like) are superior and the productivity (throughput) is improved. Tg (° C.Type: GrantFiled: August 25, 2006Date of Patent: December 4, 2012Assignees: Scivax Corporation, Maruzen Petrochemical Co., Ltd.Inventors: Takemori Toshifumi, Yoshiaki Takaya, Takahito Mita, Tetsuya Iizuka, Yuji Hashima, Takahisa Kusuura, Mitsuru Fujii, Takuji Taguchi, Anupam Mitra
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Publication number: 20120223461Abstract: The present invention provides an imprinting device and an imprinting method which can uniformly apply pressure between a mold and a molding object and which can increase and decrease a temperature at a fast speed. An imprinting device is for transferring a pattern on a mold to a film molding object, and comprises a stage for holding the mold, a pressurizing-chamber casing which configures a pressurizing-chamber together with the molding object, sealing means which airtightly seals a space between the pressurizing-chamber casing and the molding object, opening and closing means which opens and closes the space between the pressurizing-chamber casing and the molding object, pressurizing means which adjusts atmospheric pressure in the pressurizing-chamber, heating means which heats either one of or both of the mold and the molding object, and degassing means which eliminates any gas present between the mold and the molding object.Type: ApplicationFiled: May 15, 2012Publication date: September 6, 2012Applicant: SCIVAX CORPORATIONInventors: Yoshiaki Takaya, Yuji Hashima, Yoshihisa Hayashida, Hirosuke Kawaguchi, Satoru Tanaka, Akihiko Kanai, Kazuaki Uehara
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Patent number: 8215944Abstract: The present invention provides an imprinting device and an imprinting method which can uniformly apply pressure between a mold and a molding object and which can increase and decrease a temperature at a fast speed. An imprinting device is for transferring a pattern on a mold to a film molding object and comprises a stage for holding the mold, a pressurizing-chamber casing which configures a pressurizing-chamber together with the molding object, sealing means which airtightly seals a space between the pressurizing-chamber casing and the molding object, opening and closing means which opens and closes the space between the pressurizing-chamber casing and the molding object, pressurizing means which adjusts atmospheric pressure in the pressurizing-chamber, heating means which heats either one of or both of the mold and the molding object, and degassing means which eliminates any gas present between the mold and the molding object.Type: GrantFiled: December 25, 2008Date of Patent: July 10, 2012Assignee: Scivax CorporationInventors: Yoshiaki Takaya, Yuji Hashima, Yoshihisa Hayashida, Hirosuke Kawaguchi, Satoru Tanaka, Akihiko Kanai, Kazuaki Uehara
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Publication number: 20110024948Abstract: The present invention provides an imprinting device and an imprinting method which can uniformly apply pressure between a mold and a molding object and which can increase and decrease a temperature at a fast speed. An imprinting device is for transferring a pattern on a mold to a film molding object, and comprises a stage for holding the mold, a pressurizing-chamber casing which configures a pressurizing-chamber together with the molding object, sealing means which airtightly seals a space between the pressurizing-chamber casing and the molding object, opening and closing means which opens and closes the space between the pressurizing-chamber casing and the molding object, pressurizing means which adjusts atmospheric pressure in the pressurizing-chamber, heating means which heats either one of or both of the mold and the molding object, and degassing means which eliminates any gas present between the mold and the molding object.Type: ApplicationFiled: December 25, 2008Publication date: February 3, 2011Applicant: SCIVAX CORPORATIONInventors: Yoshiaki Takaya, Yuji Hashima, Yoshihisa Hayashida, Hirosuke Kawaguchi, Satoru Tanaka, Akihiko Kanai, Kazuaki Uehara
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Publication number: 20100019410Abstract: A cyclic-olefin-based thermoplastic resin for thermal imprint to be used in the production of a sheet or a film which contains at least one of skeletons represented by the following chemical equation 1 or the following chemical equation 2 in a main chain. The glass transition temperature Tg (° C.) and the value ([M]) of MFR at 260° C. satisfy the following equation 1, and [M]<30. The thermal imprint characteristics (transferability, mold release characteristic, and the like) are superior and the productivity (throughput) is improved. Tg(° C.Type: ApplicationFiled: July 12, 2006Publication date: January 28, 2010Applicants: SCIVAX CORPORATION, MARUZEN PETROCHEMICAL CO., LTD.Inventors: Takemori Toshifumi, Yoshiaki Takaya, Takahito Mita, Tetsuya Lizuka, Yuji Hashima, Takahisa Kusuura, Mitsuru Fujii, Takuji Taguchi, Anupam Mitra
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Publication number: 20100013122Abstract: A resin for thermal imprint comprises a cyclic-olefin-based thermoplastic resin that contains at least one of skeletons represented by the following chemical equation 1 or the following chemical equation 2 in a main chain. The glass transition temperature Tg (° C.) and the value ([M]) of MFR at 260 ° C. satisfy the following equation 1, and [M]>10. The thermal imprint characteristics (transferability, mold release characteristic, and the like) are superior and the productivity (throughput) is improved. Tg (° C.Type: ApplicationFiled: August 25, 2006Publication date: January 21, 2010Applicants: SCIVAX CORPORATON, MARUZEN PETROCHEMICAL CO., LTD.Inventors: Takemori Toshifumi, Yoshiaki Takaya, Takahito Mita, Tetsuya Iizuka, Yuji Hashima, Takahisa Kusuura, Mitsuru Fujii, Takuji Taguchi, Anupam Mitra