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:
May. 23, 2017
Filed:
Oct. 11, 2013
Earth Chemical Co. Ltd., Tokyo, JP;
Toagosei Co., Ltd., Tokyo, JP;
Osamu Shimoda, Hyogo, JP;
Yushi Sawada, Kobe, JP;
Masao Fukushima, Hyogo, JP;
Makoto Miyamoto, Aioi, JP;
Yushi Ando, Nagoya, JP;
Yuji Ishikawa, Osaka, JP;
EARTH CHEMICAL CO., LTD., Tokyo, JP;
TOAGOSEI CO., LTD., Tokyo, JP;
Abstract
The present invention provides a latent fingerprint detection method that is easy to handle and is capable of clearly detecting a latent fingerprint and a heating evaporation device for detecting a latent fingerprint and a latent fingerprint detection apparatus which are capable of detecting a clear latent fingerprint by a one-time operation by heating a chemical agent at high temperatures in a short time, as well as a composition for detecting a latent fingerprint. This latent fingerprint detection method includes a heating step of heating a chemical agent to be gasified by heating so as to attach to a latent fingerprint on a specimen, and an exposure step of exposing the specimen having the latent fingerprint attached thereto to the atmosphere of the gasified chemical agent. The chemical agent is a mixture of a 2-cyanoacrylic acid ester polymer and a dye.