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. 02, 1999
Filed:
Jul. 29, 1996
Munehide Kanaya, Nagano, JP;
Takao Kobayashi, Nagano, JP;
Hisashi Miyazawa, Nagano, JP;
Eiko Yanagida, Nagano, JP;
Kazuo Koshino, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An ink cartridge and an ink cartridge identifying apparatus are provided which reliably allow only standard, proper ink cartridges to be loaded. An ink cartridge to be loaded into a printer is provided which has a predetermined projected and recessed pattern portion formed on an outer surface thereof and which has a first electrode portion arranged on the projected and recessed pattern portion. The first electrode portion is positioned to be selectively engageable with a second electrode portion, which is arranged on a pattern matching portion which is fixed to a press rod arranged on the printer main body. First and second electrode portions are arranged on the projected and recessed pattern portion and the pattern matching portion to be selectively engageable, and an identification signal is generated when matching first and second electrode portions are engaged. The projected and recessed pattern portion and the pattern matching portion may be shaped into characters/symbols, graphics, or the like.