Patents by Inventor Takatsugu Suzuki

Takatsugu Suzuki 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).

  • Retardation film, polarizing plate, liquid crystal display device, and compound
    Patent number: 8936840
    Abstract: The purpose of the present invention is to provide a retardation film which has high retardation developability, good mechanical strength and good durability. This retardation film contains a cellulose derivative and at least one compound represented by general formula (1), wherein each of R1 and R2 independently represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X1 represents a single bond, —NR4—, —O— or —S—; X2 represents a single bond, —NR5—, —NR5—(C?O)—, —O— or —S—; each of R4 and R5 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R3 represents a substituent; n represents an integer of 0-4; and when n is 2 or more, a plurality of R3s may be the same or different and adjacent R3s may be joined together to form a ring).
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 20, 2015
    Assignee: Konica Minolta, Inc.
    Inventors: Takatsugu Suzuki, Issei Nakahara, Hiroyoshi Kiuchi, Kiyoshi Fukusaka
  • RETARDATION FILM, POLARIZING PLATE, LIQUID CRYSTAL DISPLAY DEVICE, AND COMPOUND
    Publication number: 20130335685
    Abstract: The purpose of the present invention is to provide a retardation film which has high retardation developability, good mechanical strength and good durability. This retardation film contains a cellulose derivative and at least one compound represented by general formula (1), wherein each of R1 and R2 independently represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X1 represents a single bond, —NR4—, —O— or —S—; X2 represents a single bond, —NR5—, —NR5—(C?O)—, —O— or —S—; each of R4 and R5 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R3 represents a substituent; n represents an integer of 0-4; and when n is 2 or more, a plurality of R3s may be the same or different and adjacent R3s may be joined together to form a ring).
    Type: Application
    Filed: March 9, 2012
    Publication date: December 19, 2013
    Applicant: KONICA MINOLTA , INC.
    Inventors: Takatsugu Suzuki, Issei Nakahara, Hiroyoshi Kiuchi, Kiyoshi Fukusaka
  • Ink jet recording liquid
    Patent number: 6916364
    Abstract: An ink jet recording liquid including a compound represented by the following Formula (1), (2) or (3):
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: July 12, 2005
    Assignee: Konica Corporation
    Inventors: Kyoko Iwamoto, Satoru Ikesu, Takatsugu Suzuki
  • Ink jet recording liquid
    Patent number: 6846351
    Abstract: An ink jet recording liquid including a compound represented by the following Formula (1), (2) or (3):
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: January 25, 2005
    Assignee: Konica Corporation
    Inventors: Kyoko Iwamoto, Satoru Ikesu, Takatsugu Suzuki
  • Ink jet recording liquid
    Publication number: 20030231235
    Abstract: An ink jet recording liquid including a compound represented by the following Formula (1), (2) or (3): 1
    Type: Application
    Filed: May 7, 2003
    Publication date: December 18, 2003
    Inventors: Kyoko Iwamoto, Satoru Ikesu, Takatsugu Suzuki
  • Ink jet recording liquid
    Publication number: 20030230216
    Abstract: An ink jet recording liquid including a compound represented by the following Formula (1), (2) or (3): 1
    Type: Application
    Filed: May 14, 2003
    Publication date: December 18, 2003
    Inventors: Kyoko Iwamoto, Satoru Ikesu, Takatsugu Suzuki