Patents by Inventor Takeshi Suda

Takeshi Suda 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).

  • Patent number: 9080017
    Abstract: A composition containing a metal compound and a siloxane compound (A) represented by general formula (1): wherein X is represented by general formula X1 or X2: wherein the number of X1 is 1-8; the number of X2 is 0-7; the sum of the number of X1 and the number of X2 is 8; R1 to R4 represent a hydrogen atom, a C1-8 alkyl group, alkenyl group, alkynyl group, or a C6-8 aryl group, a hydrogen atom thereof optionally being substituted by a fluorine atom; R5 represents a C1-18 alkyl group, alkenyl group, alkynyl group or aryl group, a hydrogen atom thereof being optionally substituted by a fluorine atom, a carbon atom being optionally substituted by an oxygen atom or a nitrogen atom; R6 represents a hydrogen atom, a vinyl group or an allyl group; m and n represent an integer of 1-4; and 3?m+n.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: July 14, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Kazuhiro Yamanaka, Hiroshi Eguchi, Junya Nakatsuji, Takeshi Suda, Katsuhiro Akiyama
  • Patent number: 9061253
    Abstract: [Problem] Diamine and carboxylic dianhydride for polymerizing a hexafluoroisopropylidene group-containing polyimide are limited in chemical structure when developed into a polyimide membrane, so that it is difficult to design a chemical structure with consideration paid to the strength and separation performance of a gas separation membrane. A gas separation membrane easily soluble in an organic solvent, excellent in formability so as to be readily usable for a gas separation membrane, and excellent in gas separation performance is obtained. [Solution] A gas separation membrane, including: a polyimide that contains a repeating unit represented by general formula (1). [In the formula (1), R1 is a divalent organic group and R2 is a tetravalent organic group, R1 containing a 2-hydroxy-1,1,1,3,3,3-hexafluoroisopropyl group (—C(CF3)2OH)].
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: June 23, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Kazuhiro Yamanaka, Tsuyoshi Ogawa, Takeshi Suda, Hiroki Uoyama
  • Patent number: 9056285
    Abstract: A gas separation membrane having a polyimide structure.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: June 16, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Kazuhiro Yamanaka, Takeshi Suda, Hiroki Uoyama
  • Patent number: 9050566
    Abstract: A gas separation membrane having a polyimide structure. The polyimide structure is provided to contain a repeating unit represented by general formula (1): (In the formula, R1 is a divalent organic group and R2 is a tetravalent organic group), wherein R1 is a divalent organic group represented by general formula (2): (In the formula, Raa is a single bond, an oxygen atom, a sulfur atom, —SO2— group, —CH2— group, —C(?O)— group, —C(CH3)2— group, —C(CH3)(CH2CH3)— group, —C(CF3)2— group or a divalent organic group formed by removing any two hydrogen atoms from a C3-C12 alicyclic hydrocarbon or C6-C25 aromatic hydrocarbon. Rab is a C1-C6 alkyl group. “ac” and “ad” mutually independently represent an integer of 0 to 2 such that 1?ac+ad?4. HFIP represents a —C(CF3)2OH group. A straight line that intersects with a wiggly line represents a bonding moiety).
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: June 9, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Kazuhiro Yamanaka, Takeshi Suda, Hiroki Uoyama
  • Publication number: 20140275445
    Abstract: A composition containing a metal compound and a siloxane compound (A) represented by general formula (1): wherein X is represented by general formula X1 or X2: wherein the number of X1 is 1-8; the number of X2 is 0-7; the sum of the number of X1 and the number of X2 is 8; R1 to R4 represent a hydrogen atom, a C1-8 alkyl group, alkenyl group, alkynyl group, or a C6-8 aryl group, a hydrogen atom thereof optionally being substituted by a fluorine atom; R5 represents a C1-18 alkyl group, alkenyl group, alkynyl group or aryl group, a hydrogen atom thereof being optionally substituted by a fluorine atom, a carbon atom being optionally substituted by an oxygen atom or a nitrogen atom; R6 represents a hydrogen atom, a vinyl group or an allyl group; m and n represent an integer of 1-4; and 3?m+n.
    Type: Application
    Filed: October 16, 2012
    Publication date: September 18, 2014
    Applicant: Central Glass Company, Limited
    Inventors: Kazuhiro Yamanaka, Hiroshi Eguchi, Junya Nakatsuji, Takeshi Suda, Katsuhiro Akiyama
  • Publication number: 20140174293
    Abstract: [Problem] Diamine and carboxylic dianhydride for polymerizing a hexafluoroisopropylidene group-containing polyimide are limited in chemical structure when developed into a polyimide membrane, so that it is difficult to design a chemical structure with consideration paid to the strength and separation performance of a gas separation membrane. A gas separation membrane easily soluble in an organic solvent, excellent in formability so as to be readily usable for a gas separation membrane, and excellent in gas separation performance is obtained. [Solution] A gas separation membrane, including: a polyimide that contains a repeating unit represented by general formula (1). [In the formula (1), R1 is a divalent organic group and R2 is a tetravalent organic group, R1 containing a 2-hydroxy-1,1,1,3,3,3-hexafluoroisopropyl group (—C(CF3)2OH).
    Type: Application
    Filed: May 30, 2012
    Publication date: June 26, 2014
    Applicant: Central Glass Company, Limited
    Inventors: Kazuhiro Yamanaka, Tsuyoshi Ogawa, Takeshi Suda, Hiroki Uoyama
  • Publication number: 20140148548
    Abstract: The present invention provides a fluorine-containing fluorenediamine of the formula (2): where R1 represents one kind of substituent group selected from the group consisting of a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, a C1-C4 alkyl group, a C1-C4 fluoroalkyl group in which any number of hydrogen atoms can be substituted by a fluorine atom, a phenyl group, a methoxy group and a nitro group; R2 represents one kind of substituent group selected from the group consisting of a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a phenyl group, a naphthyl group, a biphenyl group, a sulfonic acid group, a —C?C—C(CH3)2OH group, a —C?C—C6H5 group and a —C?C—Si(CH3)3 group; HFIP represents a —C(CF3)2OH group; and m and n each independently represent an integer of 0 to 2 and satisfy a condition of 1?m+n?4.
    Type: Application
    Filed: April 23, 2013
    Publication date: May 29, 2014
    Inventors: Kazuhiro YAMANAKA, Takeshi SUDA, Hiroki UOYAMA
  • Publication number: 20140144324
    Abstract: A gas separation membrane having a polyimide structure. The polyimide structure is provided to contain a repeating unit represented by general formula (1): (In the formula, R1 is a divalent organic group and R2 is a tetravalent organic group), wherein R1 is a divalent organic group represented by general formula (2): (In the formula, Raa is a single bond, an oxygen atom, a sulfur atom, —SO2— group, —CH2— group, —C(?O)— group, —C(CH3)2— group, —C(CH3)(CH2CH3)— group, —C(CF3)2— group or a divalent organic group formed by removing any two hydrogen atoms from a C3-C12 alicyclic hydrocarbon or C6-C25 aromatic hydrocarbon. Rab is a C1-C6 alkyl group. “ac” and “ad” mutually independently represent an integer of 0 to 2 such that 1?ac+ad?4. HFIP represents a —C(CF3)2OH group. A straight line that intersects with a wiggly line represents a bonding moiety).
    Type: Application
    Filed: April 23, 2013
    Publication date: May 29, 2014
    Inventors: Kazuhiro YAMANAKA, Takeshi SUDA, Hiroki UOYAMA
  • Patent number: 6721613
    Abstract: The present invention relates to a transaction processing apparatus, and this transaction processing apparatus is made up of a processing section for processing data on a transaction, a printing section for performing printing on a journal form while rolling the journal form, a transaction information printing control section for controlling the printing section so that information on the transaction is printed on the journal form, a detecting section for detecting a timing for taking out the rolled journal form, and an identification information printing control section for controlling the printing section so that identification information is printed in an area appearing at the outermost circumferential portion of the rolled journal form when the rolled journal form is taken out. In this transaction processing apparatus, by specifically designing an identification information printing portion of the rolled journal form, it is possible to easily and certainly identify a desired rolled journal form.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: April 13, 2004
    Assignee: Fujitsu Limited
    Inventors: Takaaki Yamamoto, Takeshi Suda
  • Patent number: 5894312
    Abstract: An image processing apparatus is disclosed which is connected to external machines for inputting data therefrom to a plurality of image memories and outputting data from the plurality of image memories thereto. The image processing apparatus includes a plurality of memory access controllers connected to the plurality of image memories, and a control device for selecting, a first mode for the plurality of memory access controllers to access the image memories separately, or a second mode for a master controller, which is one of the memory access controllers, to access the plurality of image memories as one image memory space so a to control the plurality of memory access controllers.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: April 13, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masahiro Ishiwata, Takeshi Suda