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. 17, 1993
Filed:
Oct. 03, 1991
Hikoharu Aoki, Nagoya, JP;
Kazushi Fukuda, Nagoya, JP;
Brother Kogyo Kabushiki, Nagoya, JP;
Abstract
A method for manufacturing a nozzle includes a step to change a spot diameter of a laser beam on a plate in which an orifice hole is formed. A device for manufacturing a nozzle includes a laser beam generating device for generating a laser beam, a work head comprising a lens to focus the laser beam on a plate, a driving device to move the work head upward and downward, a position detecting device for sending a signal indicating a position of the work head, and a controlling device for controlling an amount of the laser beam to be applied according to the signal from the position detecting device. The device for manufacturing a nozzle of the present invention changes the spot diameter of the laser beam on the plate. Therefore, the time period for forming an orifice hole in the nozzle can be shortened.