The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2007
Filed:
May. 13, 1999
Minoru Usui, Nagano, JP;
Satoshi Shinada, Nagano, JP;
Takahiro Naka, Nagano, JP;
Hisashi Miyazawa, Nagano, JP;
Takeo Seino, Nagano, JP;
Hisashi Koike, Nagano, JP;
Takao Kobayashi, Nagano, JP;
Masahiro Kanai, Nagano, JP;
Yasuko Hirano, Nagano, JP;
Yasushi Akatsuka, Nagano, JP;
Takayuki Iijima, Nagano, JP;
Noriaki Okazawa, Nagano, JP;
Hitoshi Matsumoto, Nagano, JP;
Yasuhiro Ogura, Nagano, JP;
Minoru Usui, Nagano, JP;
Satoshi Shinada, Nagano, JP;
Takahiro Naka, Nagano, JP;
Hisashi Miyazawa, Nagano, JP;
Takeo Seino, Nagano, JP;
Hisashi Koike, Nagano, JP;
Takao Kobayashi, Nagano, JP;
Masahiro Kanai, Nagano, JP;
Yasuko Hirano, Nagano, JP;
Yasushi Akatsuka, Nagano, JP;
Takayuki Iijima, Nagano, JP;
Noriaki Okazawa, Nagano, JP;
Hitoshi Matsumoto, Nagano, JP;
Yasuhiro Ogura, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An ink cartridge for an ink jet printer having a housing having at least one wall. The ink cartridge further has at least two ink chambers for containing different ink accommodated in the housing. Ink supply ports are formed in one wall of the housing within each of the ink chambers. Each of the ink supply ports has an inner opening and an outer opening. The distance from the inner opening of a first ink supply port to that of a second ink supply port adjacent to the first ink supply port is different from a second distance from the outer opening of the first ink supply opening to that of the second ink supply port.