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. 22, 2012
Filed:
Mar. 24, 2010
Yoshiaki Takata, Naka, JP;
Hiroki Hirata, Naka, JP;
Jun-etsu Satoh, Naka, JP;
Yasuro Niidome, Fukuoka, JP;
Sunao Yamada, Fukuoka-ken, JP;
Koji Nishioka, Fukuoka, JP;
Hideya Kawasaki, Fukuoka, JP;
Daigou Mizoguchi, Hitachinaka, JP;
Masanori Nagai, Otawara, JP;
Masato Murouchi, Otawara, JP;
Masaoki Ishihara, Otawara, JP;
Yoshiaki Takata, Naka, JP;
Hiroki Hirata, Naka, JP;
Jun-etsu Satoh, Naka, JP;
Yasuro Niidome, Fukuoka, JP;
Sunao Yamada, Fukuoka-ken, JP;
Koji Nishioka, Fukuoka, JP;
Hideya Kawasaki, Fukuoka, JP;
Daigou Mizoguchi, Hitachinaka, JP;
Masanori Nagai, Otawara, JP;
Masato Murouchi, Otawara, JP;
Masaoki Ishihara, Otawara, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Dai Nippon Toryo Co., Ltd., Osaka, JP;
Abstract
The present invention provides metal fine particles which have selective wavelength absorption characteristics in a wavelength region from visible light to near infrared light, and have sharp absorption characteristics, and influences little the surrounding wavelength, and therefore, they yield tones having high chroma. The present invention provides metal fine particles wherein an aspect ratio is in a range from 1.1 to 8.0, a maximum absorption wavelength in plasmon absorption is in a range from 400 nm to 1,200 nm, and an absorption coefficient at a peak position of the maximum absorption wavelength is in a range from 6,000 to 20,000 L/mol·cm (measurement concentration: 1.6×10mol/L, and solvent: water).