Patents by Inventor Shukichi Tanaka
Shukichi Tanaka 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: 10381204Abstract: Provided is an ultra-high vacuum forming device containing an ion pump having a compact size in the central axis direction. The ultra-high vacuum forming device (1) is provided with at least one ion pump (100). The ion pump (100) is provided with: a casing (110) having at least one opening (111, 112); a board-shaped electrode group (120) formed by means of a central opening (120a) being formed along a predetermined central axis (C) disposed within the casing (110), and a plurality of electrodes (121) being joined with spaces therebetween; a pair of board-shaped electrodes (131, 132) having a different polarity than that of the electrode group (120) and that are disposed at positions sandwiching both sides of the electrode group (120) within the casing (110); and a pair of board-shaped magnets (141, 142) disposed at positions sandwiching both sides of the pair of board-shaped electrodes (131, 132).Type: GrantFiled: April 21, 2015Date of Patent: August 13, 2019Assignee: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGYInventor: Shukichi Tanaka
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Publication number: 20190048099Abstract: A method for producing a cellulose derivative, including reacting a mixed acid anhydride having two particular types of acyl groups with cellulose in the presence of a base catalyst in an organic solvent having an electron pair-donating property to form a cellulose derivative with the two types of acyl groups derived from the mixed acid anhydride, the acyl groups being introduced at hydroxy groups in the cellulose.Type: ApplicationFiled: October 15, 2018Publication date: February 14, 2019Applicant: NEC CorporationInventors: Shukichi TANAKA, Kiyohiko TOYAMA, Masatoshi IJI
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Publication number: 20190010251Abstract: A cellulose resin formed by substituting hydrogen atoms of hydroxy groups of a cellulose with a long-chain component being a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component being an acyl group having 2 or 3 carbon atoms, in which a degree of substitution with the long-chain component (DSLo) and a degree of substitution with the short-chain component (DSSh) satisfy conditional expressions (1) and (2) shown below: DSLo+DSSh?2.1??(1) 4?DSSh/DSLo?12??(2).Type: ApplicationFiled: December 9, 2016Publication date: January 10, 2019Applicant: NEC CORPORATIONInventors: Shukichi TANAKA, Midori SHIMURA, Masatoshi IJI
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Publication number: 20180355066Abstract: A process for producing a cellulose derivative, comprising: a first step including reacting a cellulose and a first reactant comprising a long-chain reactant for reacting with a hydroxy group of the cellulose to introduce a long-chain organic group having 5 or more carbon atoms, in a solid-liquid heterogeneous system, to form a cellulose derivative in a swollen state, the cellulose derivative having the long-chain organic group having 5 or more carbon atoms introduced therein and having a part of hydroxy groups of the cellulose remained, and performing solid-liquid separation to obtain the cellulose derivative as an intermediate; and a second step including reacting the intermediate cellulose derivative and a second reactant comprising a short-chain reactant for reacting with a remaining hydroxy group of the intermediate cellulose derivative to introduce a short-chain organic group having 4 or less carbon atoms to form a final cellulose derivative having the short-chain organic group having 4 or less carbon aType: ApplicationFiled: June 11, 2018Publication date: December 13, 2018Applicant: NEC CorporationInventors: Kiyohiko TOYAMA, Masatoshi IJI, Shukichi TANAKA
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Publication number: 20180346713Abstract: A polylactic acid resin composition according to an embodiment of the invention includes a polylactic acid resin, an aliphatic polyester resin, a carbodiimide compound and a metal hydrate, in which the metal hydrate is surface-treated with a specific silane coupling agent; and the carbodiimide compound includes an aliphatic carbodiimide compound.Type: ApplicationFiled: December 2, 2016Publication date: December 6, 2018Applicant: NEC CORPORATIONInventors: Makoto SOYAMA, Masatoshi IJI, Shukichi TANAKA, Kiyohiko TOYAMA
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Publication number: 20180291117Abstract: To provide a cellulose derivative excellent in thermoplasticity, water resistance and strength (elastic modulus, impact strength), a cellulose derivative, which is obtained by introducing a short-chain organic group (acetyl group), a medium-chain organic group having 3 to 5 carbon atoms and a long-chain organic group having 6 to 30 carbon atoms at the following substitution degrees DSs into a cellulose, is used: Short-chain organic group: 0.7?DSSH?1.5; Medium-chain organic group: 0.5?DSME?2.0; Long-chain organic group: 0.1?DSLO<0.5; and 2.4?DSSH+DSME+DSLO?3.Type: ApplicationFiled: August 29, 2016Publication date: October 11, 2018Applicant: NEC CORPORATIONInventors: Midori SHIMURA, Shukichi TANAKA, Kiyohiko TOYAMA, Masatoshi IJI
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Patent number: 10005849Abstract: A process for producing a cellulose derivative, comprising: a first step including reacting a cellulose and a first reactant comprising a long-chain reactant for reacting with a hydroxy group of the cellulose to introduce a long-chain organic group having 5 or more carbon atoms, in a solid-liquid heterogeneous system, to form a cellulose derivative in a swollen state, the cellulose derivative having the long-chain organic group having 5 or more carbon atoms introduced therein and having a part of hydroxy groups of the cellulose remained, and performing solid-liquid separation to obtain the cellulose derivative as an intermediate; and a second step including reacting the intermediate cellulose derivative and a second reactant comprising a short-chain reactant for reacting with a remaining hydroxy group of the intermediate cellulose derivative to introduce a short-chain organic group having 4 or less carbon atoms to form a final cellulose derivative having the short-chain organic group having 4 or less carbon aType: GrantFiled: October 7, 2014Date of Patent: June 26, 2018Assignee: NEC CorporationInventors: Kiyohiko Toyama, Masatoshi Iji, Shukichi Tanaka
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Publication number: 20170260294Abstract: A cellulose derivative having a long-chain organic group having 5 or more carbon atoms and a short-chain organic group having 4 or less carbon atoms which are introduced by use of hydroxy groups of a cellulose, and including a crystal structure derived from a cellulose derivative portion to which the short-chain organic group is linked, wherein an average number of hydroxy groups per glucose unit is of 1.0 or less.Type: ApplicationFiled: April 24, 2015Publication date: September 14, 2017Applicant: NEC CorporationInventors: Kiyohiko TOYAMA, Masatoshi IJI, Shukichi TANAKA
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Publication number: 20170133210Abstract: Provided is an ultra-high vacuum forming device containing an ion pump having a compact size in the central axis direction. The ultra-high vacuum forming device (1) is provided with at least one ion pump (100). The ion pump (100) is provided with: a casing (110) having at least one opening (111, 112); a board-shaped electrode group (120) formed by means of a central opening (120a) being formed along a predetermined central axis (C) disposed within the casing (110), and a plurality of electrodes (121) being joined with spaces therebetween; a pair of board-shaped electrodes (131, 132) having a different polarity than that of the electrode group (120) and that are disposed at positions sandwiching both sides of the electrode group (120) within the casing (110); and a pair of board-shaped magnets (141, 142) disposed at positions sandwiching both sides of the pair of board-shaped electrodes (131, 132).Type: ApplicationFiled: April 21, 2015Publication date: May 11, 2017Inventor: Shukichi TANAKA
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Patent number: 9512238Abstract: A cellulose resin produced by binding cardanol or a derivative thereof to cellulose or a derivative thereof with the use of a cellulose hydroxy group of the cellulose or a derivative thereof and the phenolic hydroxy group of the cardanol or a derivative thereof.Type: GrantFiled: November 14, 2014Date of Patent: December 6, 2016Assignee: NEC CORPORATIONInventors: Masatoshi Iji, Sungil Moon, Shukichi Tanaka, Hiroyuki Kai
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Patent number: 9487646Abstract: A cellulose resin composition containing a cellulose resin produced by binding a cardanol or a derivative thereof to cellulose or a derivative thereof, and a cardanol-modified silicone compound produced by binding cardanol or a derivative thereof to a silicone compound.Type: GrantFiled: July 6, 2011Date of Patent: November 8, 2016Assignee: NEC CORPORATIONInventors: Sungil Moon, Masatoshi Iji, Shukichi Tanaka
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Patent number: 9458251Abstract: A cellulose resin produced by binding a hydrogenated cardanol containing 3-pentadecylcyclohexanol, and cellulose or a derivative thereof through the reaction between a hydroxy group of the hydrogenated cardanol, a hydroxy group of the cellulose or a derivative thereof and isocyanate groups of a diisocyanate compound.Type: GrantFiled: March 27, 2012Date of Patent: October 4, 2016Assignee: NEC CORPORATIONInventors: Shukichi Tanaka, Sungil Moon, Masatoshi Iji
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Publication number: 20160251452Abstract: A process for producing a cellulose derivative, comprising: a first step including reacting a cellulose and a first reactant comprising a long-chain reactant for reacting with a hydroxy group of the cellulose to introduce a long-chain organic group having 5 or more carbon atoms, in a solid-liquid heterogeneous system, to form a cellulose derivative in a swollen state, the cellulose derivative having the long-chain organic group having 5 or more carbon atoms introduced therein and having a part of hydroxy groups of the cellulose remained, and performing solid-liquid separation to obtain the cellulose derivative as an intermediate; and a second step including reacting the intermediate cellulose derivative and a second reactant comprising a short-chain reactant for reacting with a remaining hydroxy group of the intermediate cellulose derivative to introduce a short-chain organic group having 4 or less carbon atoms to form a final cellulose derivative having the short-chain organic group having 4 or less carbon aType: ApplicationFiled: October 7, 2014Publication date: September 1, 2016Applicant: NEC CorporationInventors: Kiyohiko TOYAMA, Masatoshi IJI, Shukichi TANAKA
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Publication number: 20160200836Abstract: A method for producing a cellulose derivative, including reacting a mixed acid anhydride having two particular types of acyl groups with cellulose in the presence of a base catalyst in an organic solvent having an electron pair-donating property to form a cellulose derivative with the two types of acyl groups derived from the mixed acid anhydride, the acyl groups being introduced at hydroxy groups in the cellulose.Type: ApplicationFiled: August 11, 2014Publication date: July 14, 2016Inventors: Shukichi TANAKA, Kiyohiko TOYAMA, Masatoshi IJI
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Patent number: 9382335Abstract: A process for producing a cellulose derivative, including reacting a reactant and a cellulose or a derivative thereof in a solid-liquid heterogeneous system to form a cellulose derivative containing a long-chain organic group having 5 or more carbon atoms introduced therein, in a swollen state, and performing solid-liquid separation to obtain the cellulose derivative containing a long-chain organic group introduced therein.Type: GrantFiled: May 31, 2013Date of Patent: July 5, 2016Assignee: NEC CorporationInventors: Kiyohiko Toyama, Masatoshi Iji, Shukichi Tanaka
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Patent number: 9340625Abstract: A cellulose resin produced by binding cardanol or a derivative thereof, and a flexible component to cellulose or a derivative thereof.Type: GrantFiled: July 6, 2011Date of Patent: May 17, 2016Assignee: NEC CORPORATIONInventors: Shukichi Tanaka, Masatoshi Iji, Sungil Moon
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Publication number: 20150368442Abstract: A composition containing a cellulose resin (X) obtained by binding an organic group to cellulose or a derivative thereof and a linear aliphatic polyester (Y), which is at least one of the following linear aliphatic polyesters (Y1) and (Y2) or a crosslinked product thereof: (Y1) a linear aliphatic polyester containing at least one of repeat units represented by the following formula (I) and formula (II) —(CO—R1—COO—R2—O)—??formula (I) where R1 represents a bivalent aliphatic group having 1 to 12 carbon atoms and R2 represents a bivalent aliphatic group having 2 to 12 carbon atoms. —(CO—R3—O)—??formula (II) where R3 represents a bivalent aliphatic group having 2 to 10 carbon atoms. (Y2) a linear aliphatic polyester comprising a ring-opening polymerization product of a cyclic ester.Type: ApplicationFiled: January 30, 2014Publication date: December 24, 2015Applicant: NEC CORPORATIONInventors: Makoto SOYAMA, Yukihiro KIUCHI, Masatoshi IJI, Shukichi TANAKA, Kiyohiko TOYAMA
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Patent number: 9181351Abstract: A cellulose resin produced by binding cellulose or a derivative thereof and cardanol or a derivative thereof by using a hydroxy group of the cellulose or a derivative thereof and a hydroxy group of the cardanol or a derivative thereof, in which carbon atoms to which the hydroxy groups are bound are mutually linked via a carbonate bond or urethane bond formed by using the hydroxy groups.Type: GrantFiled: March 27, 2012Date of Patent: November 10, 2015Assignee: NEC CORPORATIONInventors: Shukichi Tanaka, Sungil Moon, Masatoshi Iji
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Patent number: 9039826Abstract: An exemplary embodiment provides a cardanol-modified silane coupling agent, which can improve strength and toughness by improving adhesion at an interface between a filler and a cellulose resin when being used as a surface-treatment agent, a resin additive, or the like; a cardanol-modified filler subjected to a surface treatment with the cardanol-modified silane coupling agent; and a cellulose resin composition having excellent toughness. More specifically, the exemplary embodiment provides a cardanol-modified silane coupling agent obtained by reacting cardanol or a derivative thereof with an epoxy silane coupling agent or an isocyanate silane coupling agent; a cardanol-modified filler obtained by subjecting a filler to a surface treatment with the cardanol-modified silane coupling agent; a cellulose resin composition comprising the cardanol-modified filler and a cellulose resin; and a cellulose resin composition comprising the cardanol-modified silane coupling agent, a filler and a cellulose resin.Type: GrantFiled: December 3, 2010Date of Patent: May 26, 2015Assignee: NEC CorporationInventors: Shukichi Tanaka, Masatoshi Iji
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Publication number: 20150141639Abstract: A process for producing a cellulose derivative, including reacting a reactant and a cellulose or a derivative thereof in a solid-liquid heterogeneous system to form a cellulose derivative containing a long-chain organic group having 5 or more carbon atoms introduced therein, in a swollen state, and performing solid-liquid separation to obtain the cellulose derivative containing a long-chain organic group introduced therein.Type: ApplicationFiled: May 31, 2013Publication date: May 21, 2015Inventors: Kiyohiko Toyama, Massatoshi Iji, Shukichi Tanaka