Patents by Inventor Tadashi Kouriki

Tadashi Kouriki 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: 9566818
    Abstract: In order to provide a writing instrument applicable to an applicator, in which a writing or applying direction can be visually recognized in a broad range at a visual part of a tip, the writing instrument is endowed with a constitution in which a tip is equipped with a porous member as a writing part and a holding member holding the above porous member and having at least one liquid guiding part for feeding an liquid to the writing or applying part, which comprises a relay porous member for feeding a liquid contained in a instrument main body to the liquid guiding part provided in the holding member 55 and in which the holding member is a visible part wherein an area ratio of the above visible part on the front or side face is 40% or more of the tip protruding from a tip part.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: February 14, 2017
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Toshimi Kamitani, Hiroyuki Okuyama, Mitsuhiro Kawabata, Tadashi Kouriki
  • Publication number: 20150367672
    Abstract: In order to provide a writing instrument applicable to an applicator, in which a writing or applying direction can be visually recognized in a broad range at a visual part of a tip, the writing instrument is endowed with a constitution in which a tip 40 is equipped with a porous member 45 as a writing part and a holding member 55 holding the above porous member 45 and having at least one liquid guiding part 50 for feeding an liquid to the writing or applying part, which comprises a relay porous member 30 for feeding a liquid contained in a instrument main body 10 to the liquid guiding part 50 provided in the holding member 55 and in which the holding member 55 is a visible part enabling to visually recognize a writing or an applying direction, wherein an area ratio of the above visible part on the front or side face is 40% or more of the tip 40 protruding from a tip part of the instrument main body.
    Type: Application
    Filed: August 3, 2015
    Publication date: December 24, 2015
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Toshimi KAMITANI, Hiroyuki OKUYAMA, Mitsuhiro KAWABATA, Tadashi KOURIKI
  • Patent number: 9132692
    Abstract: In order to provide a writing instrument in which a writing direction can be visually recognized in a broad range at a visual part of a pen tip and which can surely write to end of writing, the writing instrument is endowed with a constitution in which a pen tip is equipped with a porous member as a writing part and a holding member holding the above porous member and having at least one ink guiding part through which an ink contained in a barrel is provided to a writing part held by the holding member which is a visible part enabling to visually recognize a writing direction, wherein an area ratio of the visible part is 40% or more of the pen tip protruding from a tip part of the writing instrument.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: September 15, 2015
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Toshimi Kamitani, Hiroyuki Okuyama, Mitsuhiro Kawabata, Tadashi Kouriki
  • Publication number: 20130064595
    Abstract: In order to provide a writing instrument in which a writing direction can be visually recognized in a broad range at a visual part of a pen tip and which can surely write to end of writing, the writing instrument is endowed with a constitution in which a pen tip is equipped with a porous member as a writing part and a holding member holding the above porous member and having at least one ink guiding part through which an ink contained in a barrel is provided to a writing part held by the holding member which is a visible part enabling to visually recognize a writing direction, wherein an area ratio of the visible part is 40% or more of the pen tip protruding from a tip part of the writing instrument.
    Type: Application
    Filed: June 14, 2011
    Publication date: March 14, 2013
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Toshimi Kamitani, Hiroyuki Okuyama, Mitsuhiro Kawabata, Tadashi Kouriki
  • Patent number: 7922412
    Abstract: To provide a fluid feeder of an applicator having a structure that allows a fluid to flow into a tubular member and be positively pressurized at the time of an ejecting operation, which can readily eject the fluid even if the fluid becomes unlikely to flow out and which allows the user to readily use over a long period of time even if a high-viscosity fluid is used. In the fluid feeder of an applicator, at the time of the closed state, the periphery of a base of a rod-like part comes into hermetic contact with the inner peripheral surface of a fore part of a tubular member.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: April 12, 2011
    Assignee: Mitsubishi Pencil Company, Limited
    Inventors: Kouhei Miyamoto, Tadashi Kouriki
  • Publication number: 20100272496
    Abstract: To provide a fluid feeder of an applicator having a structure that allows a fluid to flow into a tubular member and be positively pressurized at the time of an ejecting operation, which can readily eject the fluid even if the fluid becomes unlikely to flow out and which allows the user to readily use over a long period of time even if a high-viscosity fluid is used. In the fluid feeder of an applicator, at the time of the closed state, the periphery of a base of a rod-like part comes into hermetic contact with the inner peripheral surface of a fore part of a tubular member.
    Type: Application
    Filed: November 4, 2008
    Publication date: October 28, 2010
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Kouhei Miyamoto, Tadashi Kouriki