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:
Sep. 15, 1998
Filed:
Feb. 05, 1997
Masaaki Suzuki, Sapporo, JP;
Yoshinori Nakata, Sapporo, JP;
Hideaki Nagai, Sapporo, JP;
Takeshi Okutani, Sapporo, JP;
Masashi Murakami, Hadano, JP;
Nobuo Kushibiki, Fujisawa, JP;
Abstract
A method of detecting an ultraviolet laser beam, which includes irradiating a detector with the ultraviolet laser beam to produce photoluminescence from the detector, and sensing the photoluminescence. The detector includes a specific polysilmethylene compound or a specific polysiloxane compound. A method of recording an information is also disclosed which includes exposing a photosensitive layer to an ultraviolet laser beam according to the information. The photosensitive layer includes a specific polysilmethylene compound or a specific polysiloxane compound. By irradiating the exposed photosensitive layer to a reference ultraviolet laser beam, the recorded information is read.