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:
Jan. 11, 2005
Filed:
Nov. 05, 2002
Myung-song Jung, Gyeonggi-do, KR;
Young-su Lee, Gyeonggi-do, KR;
Jeong-seon Kim, Gyeonggi-do, KR;
Moo-youl Kim, Seoul, KR;
Myung-song Jung, Gyeonggi-do, KR;
Young-su Lee, Gyeonggi-do, KR;
Jeong-seon Kim, Gyeonggi-do, KR;
Moo-youl Kim, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
An ink cartridge for an ink jet printer is provided. The provided ink cartridge has an ink reservoir and a housing for covering the ink reservoir with a negative pressure maintenance unit therebetween, to maintain the inner pressure of the ink reservoir under a negative pressure. Since the negative pressure maintenance unit does not contact ink in the ink reservoir, the negative pressure maintenance unit does not corrode. In addition, the negative pressure maintenance unit is installed between the housing and the ink reservoir while occupying a small space, and thus improving the filling efficiency of ink in the ink reservoir.