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:
Aug. 18, 1981
Filed:
Feb. 13, 1980
Applicant:
Inventor:
Sadao Kakeno, Yokohama, JP;
Assignee:
Ricoh Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346 75 ; 3461 / ;
Abstract
An ink jet head comprises a nozzle unit having a plurality of nozzles and a vibration unit having vibrating plates opposite to the nozzles. One or more ink distributing pipes having a plurality of ink outlets are arranged in parallel with the rectilinear nozzles, whereby the ink under uniform pressure is applied from the ink outlets of one or more pipes to the nozzles and the ink drops in the same size are jetted from the nozzles respectively.