US Patent 7799425 - Metal composite nanoparticle

http://ip.com/patent/US7799425

This patent from Ebara Corporation teaches a nanostructured bonding material as a substitute for solder in microelectronics. Claim 1 reads:

1. A composite nanoparticle comprising:

a core comprising an inorganic metal compound and a metal component; and

a coating of an organic substance bonded to said core by physical adsorption.

US Patent 7597278 - Method of producing purified medicinal nanoparticle suspensions

http://www.freepatentsonline.com/7597278.html

Several methods have been developed to produce nanoparticle suspensions to facilitate the delivery or absorption of drugs. However, these methods can often result in the inclusion of contamination in the suspension. This patent based on research from Osaka University teaches a method capable of improving the purity of such nanoparticle suspensions. Claim 1 reads:

1. A method of producing a medicinal nanoparticle suspension, comprising the steps of:

adding a poorly water-soluble or water-insoluble medicinal ingredient of a drug into a poor solvent to form a suspending solution; and

irradiating the suspending solution with a laser having a wavelength that is absorbed by the medicinal ingredient to grind the medicinal ingredient in the suspending solution to form nanoparticles.