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:
Apr. 21, 2020
Filed:
May. 24, 2018
Toshiyuki Ikeoh, Miyagi, JP;
Kentaroh Hagita, Miyagi, JP;
Naoto Jikutani, Miyagi, JP;
Yasuhiro Higashi, Miyagi, JP;
Kazuma Izumiya, Miyagi, JP;
Toshiyuki Ikeoh, Miyagi, JP;
Kentaroh Hagita, Miyagi, JP;
Naoto Jikutani, Miyagi, JP;
Yasuhiro Higashi, Miyagi, JP;
Kazuma Izumiya, Miyagi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A laser device includes a light source device including a semiconductor laser; and a laser cavity irradiated with light from the light source device and including a saturable absorber. A beam waist diameter r of the light that irradiates the laser cavity and an initial transmittance Tof the saturable absorber satisfy a relationship of 7.75×T−7.77×T+3.13×T+0.16×T+0.74≤r≤2.62×T+0.675.