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. 07, 2000
Filed:
Apr. 06, 1998
Applicant:
Inventor:
Mitsuhide Matsuda, Fukuoka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 47 ;
Abstract
There is provided an ink-jet printer for jetting ink drops through nozzle holes in which each of the nozzle holes is circular in section, a ratio a/d of a nozzle hole roundness of each of the nozzle holes a to a nozzle hole diameter of each of the nozzle holes d is not more than 0.2, and an amount of ink/jet which is jetted through each of the nozzles holes is not more than 20 pl. According to this ink-jet printer, a good printing quality can be obtained without impact-errors.