Patents by Inventor Tatsuhiro Nakagawa

Tatsuhiro Nakagawa 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: 5720563
    Abstract: A cosmetic applicator includes a valve disc having a central hole and fixed to an inner portion of a container in which a liquid to be applied is stored. A shaft is engageable with and disengageable from the container and includes a front portion having a brush holder with a brush projecting therefrom. An annular projection at a portion of the shaft in the vicinity of a base portion of the brush holder defines an annular recess inside of the annular projection. An outer surface of the brush holder has at least one longitudinally extending groove communicating with the annular recess. A front end portion of the annular projection and a rear end portion of the valve disc are engageable in a liquid tight manner.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: February 24, 1998
    Assignee: OHTO Kabushiki Kaisha
    Inventor: Tatsuhiro Nakagawa
  • Patent number: 5427464
    Abstract: A cap is provided for a writing instrument to eliminate a potential threat to safety when swallowed. The cap permits easy assembly of an inner cap into an outer shell without using any tools. The cap has an outer shell and a tip seal member (inner shell) fitted in the outer shell to form an air passage therebetween. The outer shell has a rectangular recess at one end and an annular projection on the inner surface adjacent to a bottom edge of the rectangular recess, and snap-fit projection is engageable with a barrel of the writing instrument. The tip seal member has a coupling device for holding a clip, a plurality of first and second projections frictionally engageable with the inner surface of the outer shell so that when the coupling device of the tip sealing member is press-fitted to the rectangular recess, the first projections are engaged with the annular projection of the outer shell.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: June 27, 1995
    Assignee: Ohto Kabushiki Kaisha
    Inventor: Tatsuhiro Nakagawa