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).

  • Publication number: 20180346713
    Abstract: 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: Application
    Filed: December 2, 2016
    Publication date: December 6, 2018
    Applicant: NEC CORPORATION
    Inventors: Makoto SOYAMA, Masatoshi IJI, Shukichi TANAKA, Kiyohiko TOYAMA
  • Publication number: 20180291117
    Abstract: 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: Application
    Filed: August 29, 2016
    Publication date: October 11, 2018
    Applicant: NEC CORPORATION
    Inventors: Midori SHIMURA, Shukichi TANAKA, Kiyohiko TOYAMA, Masatoshi IJI
  • Patent number: 10005849
    Abstract: 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 a
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: June 26, 2018
    Assignee: NEC Corporation
    Inventors: Kiyohiko Toyama, Masatoshi Iji, Shukichi Tanaka
  • Publication number: 20170260294
    Abstract: 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: Application
    Filed: April 24, 2015
    Publication date: September 14, 2017
    Applicant: NEC Corporation
    Inventors: Kiyohiko TOYAMA, Masatoshi IJI, Shukichi TANAKA
  • Publication number: 20170133210
    Abstract: 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: Application
    Filed: April 21, 2015
    Publication date: May 11, 2017
    Inventor: Shukichi TANAKA
  • Patent number: 9512238
    Abstract: 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: Grant
    Filed: November 14, 2014
    Date of Patent: December 6, 2016
    Assignee: NEC CORPORATION
    Inventors: Masatoshi Iji, Sungil Moon, Shukichi Tanaka, Hiroyuki Kai
  • Patent number: 9487646
    Abstract: 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: Grant
    Filed: July 6, 2011
    Date of Patent: November 8, 2016
    Assignee: NEC CORPORATION
    Inventors: Sungil Moon, Masatoshi Iji, Shukichi Tanaka
  • Patent number: 9458251
    Abstract: 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: Grant
    Filed: March 27, 2012
    Date of Patent: October 4, 2016
    Assignee: NEC CORPORATION
    Inventors: Shukichi Tanaka, Sungil Moon, Masatoshi Iji
  • Publication number: 20160251452
    Abstract: 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 a
    Type: Application
    Filed: October 7, 2014
    Publication date: September 1, 2016
    Applicant: NEC Corporation
    Inventors: Kiyohiko TOYAMA, Masatoshi IJI, Shukichi TANAKA
  • Publication number: 20160200836
    Abstract: 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: Application
    Filed: August 11, 2014
    Publication date: July 14, 2016
    Inventors: Shukichi TANAKA, Kiyohiko TOYAMA, Masatoshi IJI
  • Patent number: 9382335
    Abstract: 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: Grant
    Filed: May 31, 2013
    Date of Patent: July 5, 2016
    Assignee: NEC Corporation
    Inventors: Kiyohiko Toyama, Masatoshi Iji, Shukichi Tanaka
  • Patent number: 9340625
    Abstract: A cellulose resin produced by binding cardanol or a derivative thereof, and a flexible component to cellulose or a derivative thereof.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: May 17, 2016
    Assignee: NEC CORPORATION
    Inventors: Shukichi Tanaka, Masatoshi Iji, Sungil Moon
  • Publication number: 20150368442
    Abstract: 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: Application
    Filed: January 30, 2014
    Publication date: December 24, 2015
    Applicant: NEC CORPORATION
    Inventors: Makoto SOYAMA, Yukihiro KIUCHI, Masatoshi IJI, Shukichi TANAKA, Kiyohiko TOYAMA
  • Patent number: 9181351
    Abstract: 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: Grant
    Filed: March 27, 2012
    Date of Patent: November 10, 2015
    Assignee: NEC CORPORATION
    Inventors: Shukichi Tanaka, Sungil Moon, Masatoshi Iji
  • Patent number: 9039826
    Abstract: 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: Grant
    Filed: December 3, 2010
    Date of Patent: May 26, 2015
    Assignee: NEC Corporation
    Inventors: Shukichi Tanaka, Masatoshi Iji
  • Publication number: 20150141639
    Abstract: 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: Application
    Filed: May 31, 2013
    Publication date: May 21, 2015
    Inventors: Kiyohiko Toyama, Massatoshi Iji, Shukichi Tanaka
  • Publication number: 20150073135
    Abstract: 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: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Applicant: NEC CORPORATION
    Inventors: Masatoshi IJI, Sungil MOON, Shukichi TANAKA, Hiroyuki KAI
  • Patent number: 8962778
    Abstract: A cellulose resin produced by binding cardanol or a derivative thereof and abietic acid or a derivative thereof to cellulose or a derivative thereof.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: February 24, 2015
    Assignee: NEC Corporation
    Inventors: Masatoshi Iji, Sungil Moon, Shukichi Tanaka, Hiroyuki Kai
  • Patent number: 8916699
    Abstract: 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: Grant
    Filed: October 4, 2010
    Date of Patent: December 23, 2014
    Assignee: NEC Corporation
    Inventors: Masatoshi Iji, Sungil Moon, Shukichi Tanaka, Hiroyuki Kai
  • Publication number: 20140024824
    Abstract: 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: Application
    Filed: March 27, 2012
    Publication date: January 23, 2014
    Applicant: NEC CORPORATION
    Inventors: Shukichi Tanaka, Sungil Moon, Masatoshi Iji