Patent Number: 7,826,174

Title: Information recording method and apparatus using plasmonic transmission along line of ferromagnetic nano-particles with reproducing method using fade-in memory

Abstract: An information recording apparatus comprises a plurality of fine particles forming an array on a plane in close proximity of each other, each of the plural particles including a ferromagnetic metal, a light-emitting device for exciting a near-field light, and a photo-electric conversion element for detecting a near-field light traveled along the fine particles.

Inventors: Takahashi; Migaku (Miyagi, JP), Tsunoda; Masakiyo (Miyagi, JP), Saito; Shin (Miyagi, JP), Ogawa; Tomoyuki (Miyagi, JP), Fujimura; Itaru (Kanagawa, JP), Misawa; Shigeyoshi (Tokyo, JP), Kawasaki; Toshiyuki (Kanagawa, JP)

Assignee: Ricoh Company, Ltd.

International Classification: G11B 21/02 (20060101); G01N 21/55 (20060101); G01J 3/44 (20060101); G02B 6/10 (20060101); G11C 8/00 (20060101)

Expiration Date: 2019-11-02 0:00:00