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:
Dec. 18, 1984
Filed:
Sep. 14, 1982
Applicant:
Inventors:
Masato Watanabe, Hachioji, JP;
Kazuhiro Oda, Sayama, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3461 / ;
Abstract
An ink jet printing apparatus of the impulse type which has an ejection failure detector. The detector has electrode means for charging ejected droplets, a reception electrode for receiving the charged droplets, and a circuit for detecting the approach and arrival of the charged droplets at the reception electrode. An ejection failure detection causes a nozzle purging operation.
Watanabe, Masato. (1984). Ink jet printing apparatus (U.S. Patent No. 4489335). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4489335
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile