Patents by Inventor Shinichi Yanagisawa

Shinichi Yanagisawa 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).

  • Method of manufacturing an ink cartridge for use in ink-jet recorder
    Patent number: 6250746
    Abstract: A method of manufacturing an ink cartridge for use in an ink jet recorder including positioning a container body having a bottom wall and an opening on a pallet such that the bottom wall faces upward, the container body including a porous member, a foam chamber for accommodating the porous member therein, and an ink supply port, having an inlet formed in the bottom surface of the foam chamber and an outlet; inserting packing into the ink supply port; sealing the ink supply port outlet; resetting the container body on the pallet by turning the container body upside down such that the opening faces upward; affixing a filter to the ink supply port inlet; inserting the porous member into the foam chamber; bonding a cover to the opening of the container body; injecting ink into the foam chamber; and sealing the cover.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: June 26, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Kazunori Ito, Seiichi Takada, Masahide Matsuyama, Yuichi Nakamura, Masakazu Sato, Tadatoshi Honzawa, Hisashi Koike, Taeko Nishimura, Masahiko Fukazawa, Kazuo Yamada, Shinichi Yanagisawa, Morio Sato, Kiyoshi Kitahara, Takashi Hara, Takao Kobayashi
  • Method of manufacturing an ink cartridge for use in ink jet recorder
    Patent number: 5875615
    Abstract: A method of manufacturing an ink cartridge for use in an ink jet recorder including positioning a container body having a bottom wall and an opening on a pallet such that the bottom wall faces upward, the container body including a porous member, a foam chamber for accommodating the porous member therein, and an ink supply port, having an inlet formed in the bottom surface of the foam chamber and an outlet; inserting packing into the ink supply port; sealing the ink supply port outlet; resetting the container body on the pallet by turning the container body upside down such that the opening faces upward; affixing a filter to the ink supply port inlet; inserting the porous member into the foam chamber; bonding a cover to the opening of the container body; injecting ink into the foam chamber; and sealing the cover.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: March 2, 1999
    Assignee: Seiko Epson Corporation
    Inventors: Kazunori Ito, Seiichi Takada, Masahide Matsuyama, Yuichi Nakamura, Masakazu Sato, Tadatoshi Honzawa, Hisashi Koike, Taeko Nishimura, Masahiko Fukazawa, Kazuo Yamada, Shinichi Yanagisawa, Morio Sato, Kiyoshi Kitahara, Takashi Hara, Takao Kobayashi