Patents by Inventor Hisashi Kuwata

Hisashi Kuwata 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: 8449072
    Abstract: An ink mixed with spacer members is ejected onto one or both of a TFT substrate and a CF substrate while an ink jet head having a plurality of ink jet nozzles is moved. The excursions of a predetermined number of ink jet nozzles from an end of the ink jet head overlap those of a next excursion of the ink jet head without causing overlapping of ejected ink within the overlapping area. An abrupt stepwise change in the amount of ejected ink is suppressed whereby an uneven gap is suppressed.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: May 28, 2013
    Assignee: NEC LCD Technologies, Ltd.
    Inventor: Hisashi Kuwata
  • Publication number: 20110310176
    Abstract: An ink mixed with spacer members is ejected onto one or both of a TFT substrate and a CF substrate while an ink jet head having a plurality of ink jet nozzles is moved. The excursions of a predetermined number of ink jet nozzles from an end of the ink jet head overlap those of a next excursion of the ink jet head without causing overlapping of ejected ink within the overlapping area. An abrupt stepwise change in the amount of ejected ink is suppressed whereby an uneven gap is suppressed.
    Type: Application
    Filed: August 31, 2011
    Publication date: December 22, 2011
    Applicant: NEC LCD TECHNOLOGIES, LTD.
    Inventor: Hisashi KUWATA
  • Patent number: 8037842
    Abstract: An ink mixed with spacer members is ejected onto one or both of a TFT substrate and a CF substrate while an ink jet head having a plurality of ink jet nozzles is moved. The excursions of a predetermined number of ink jet nozzles from an end of the ink jet head overlap those of a next excursion of the ink jet head without causing overlapping of ejected ink within the overlapping area. An abrupt stepwise change in the amount of ejected ink is suppressed whereby an uneven gap is suppressed.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: October 18, 2011
    Assignee: NEC LCD Technologies, Ltd
    Inventor: Hisashi Kuwata
  • Publication number: 20080246912
    Abstract: The present invention provides a liquid crystal display (LCD) which is an active-matrix addressing LCD prepared by a drop filling and substrate assembling method, prevents an occurrence of a drop mark, and has superior residual image characteristics. The residual image characteristics are improved by adding an acidic compound (for instance, phenol derivative 412) into a liquid crystal composition to adjust a dielectric constant. The occurrence of the drop mark is prevented by adding a compound (for instance, alkoxy compound 413) which can form a hydrogen bond with the acidic compound into the liquid crystal composition so as to prevent the acidic compound from forming the hydrogen bond with water 409 when the LC composition has been dropped on a substrate. In a progressive mode, the content of the phenol compound is 0.00010 N or more, and the content of the alkoxy compound is 0.265 mol/L or less and is 10 equivalents or more with respect to the phenol compound.
    Type: Application
    Filed: March 20, 2008
    Publication date: October 9, 2008
    Applicant: NEC LCD TECHNOLOGIES, LTD.
    Inventors: Daisuke Inoue, Mitsuhiro Sugimoto, Toshihiko Motomatsu, Hisashi Kuwata
  • Publication number: 20080238968
    Abstract: An ink mixed with spacer members is ejected onto one or both of a TFT substrate and a CF substrate while an in jet head having a plurality of ink jet nozzles is moved. The excursions of a predetermined number of ink jet nozzles from an end of the ink-jet head overlap those of a next excursion of the ink jet head without causing overlapping of ejected ink within the overlapping area. An abrupt stepwise change in the amount of ejected ink is suppressed whereby an uneven gap is suppressed.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 2, 2008
    Applicant: NEC LCD TECHNOLOGIES, LTD.
    Inventor: Hisashi KUWATA