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:
Oct. 29, 2019
Filed:
Aug. 06, 2018
Gigaphoton Inc., Tochigi, JP;
Yoshiaki Kurosawa, Oyama, JP;
Takashi Suganuma, Oyama, JP;
GIGAPHOTON INC., Tochigi, JP;
Abstract
A laser apparatus according to one aspect of the present disclosure includes a master oscillator configured to output laser light, a plurality of amplifiers each configured to include carbon dioxide as a laser medium and amplify the laser light, a first optical path pipe configured to cover a laser optical path between the amplifiers, a gas supply port configured to supply, into the first optical path pipe, gas having lower carbon dioxide concentration than that of the air, a first carbon dioxide densitometer configured to measure carbon dioxide concentration in the first optical path pipe, and an alarm device configured to issue an alarm when the carbon dioxide concentration measured by the first carbon dioxide densitometer exceeds a preset prescribed value.