Patents by Inventor Kuzuhisa Kawakami

Kuzuhisa Kawakami 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).

  • Ink-jet recording apparatus and ink tank cartridge therefor
    Patent number: 5657058
    Abstract: An ink tank cartridge is provided removably mountable onto an ink supply needle of the ink-jet type recording apparatus body. The cartridge has a housing provided with an ink supply port extending through and projecting from a wall of the housing and into the chamber of the housing. A porous member having ink impregnated thereon is positioned inside the chamber of the housing abutting against the ink supply port. A filter is mounted on the inner end opening of the ink supply port. The ink tank cartridge is further provided with a packing member for resiliently abutting against the outer periphery of the ink supply needle and is positioned adjacent one end of the ink supply port. The outer opening of the ink supply port is sealed with a sealing member through which the ink supply needle penetrates.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: August 12, 1997
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Mochizuki, Kuzuhisa Kawakami, Masahiro Nakamura, Keiichi Ohshima, Masanori Yoshida
  • Ink-jet recording apparatus and ink tank cartridge thereof
    Patent number: 5590510
    Abstract: An ink tank cartridge is provided removably mountable onto an ink supply needle of the ink-jet type recording apparatus body. The cartridge has a housing provided with an ink supply port extending through and projecting from a wall of the housing and into the chamber of the housing. A porous member having ink impregnated thereon is positioned inside the chamber of the housing abutting against the ink supply port. A filter is mounted on the inner end opening of the ink supply port. The ink tank cartridge is further provided with a packing member for resiliently abutting against the outer periphery of the ink supply needle and is positioned adjacent one end of the ink supply port. The outer opening of the ink supply port is sealed with a sealing member through which the ink supply needle penetrates.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: January 7, 1997
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Mochizuki, Kuzuhisa Kawakami, Masahiro Nakamura, Keiichi Ohshima, Masanori Yoshida
  • Ink-jet recording apparatus and ink tank cartridge therefor
    Patent number: 5576749
    Abstract: An ink tank cartridge is provided removably mountable onto an ink supply needle of the ink-jet type recording apparatus body. The cartridge has a housing provided with an ink supply port extending through and projecting from a wall of the housing and into the chamber of the housing. A porous member having ink impregnated thereon is positioned inside the chamber of the housing abutting against the ink supply port. A filter is mounted on the inner end opening of the ink supply port. The ink tank cartridge is further provided with a packing member for resiliently abutting against the outer periphery of the ink supply needle and is positioned adjacent one end of the ink supply port. The outer opening of the ink supply port is sealed with a sealing member through which the ink supply needle penetrates.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: November 19, 1996
    Assignee: Seiko Epson Corproation
    Inventors: Seiji Mochizuki, Kuzuhisa Kawakami, Masahiro Nakamura, Keiichi Ohshima, Masanori Yoshida
  • Ink-jet recording apparatus and ink tank cartridge therefor
    Patent number: 5477963
    Abstract: An ink tank cartridge is provided removably mountable onto an ink supply needle of the ink-jet type recording apparatus body. The cartridge has a housing provided with an ink supply port extending through and projecting from a wall of the housing and into the chamber of the housing. A porous member having ink impregnated thereon is positioned inside the chamber of the housing abutting against the ink supply port. A filter is mounted on the inner end opening of the ink supply port. The ink tank cartridge is further provided with a packing member for resiliently abutting against the outer periphery of the ink supply needle and is positioned adjacent one end of the ink supply port. The outer opening of the ink supply port is sealed with a sealing member through which the ink supply needle penetrates.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: December 26, 1995
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Mochizuki, Kuzuhisa Kawakami, Masahiro Nakamura, Keiichi Ohshima, Masanori Yoshida