公开(公告)号：US20020150825A1

公开(公告)日：2002-10-17

申请号：US10131191

申请日：2002-04-25

Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

Inventor： Osamu Watanabe ,  Masaaki Tsuchimori ,  Yoshimasa Kawata ,  Chikara Egami ,  Okihiro Sugihara ,  Naomichi Okamoto

IPC: G11B007/24

CPC classification number: B82Y10/00 ,  C12Q1/02 ,  G11B7/00455 ,  G11B7/006 ,  G11B7/0065 ,  G11B7/24044 ,  G11B7/245 ,  G11B7/26 ,  Y10S430/146

Abstract: An optical recording method suited for recording a very small object or movement of a living organism such as a microorganism, which comprises irradiating an informative object set on or above a recording layer comprising a photosensitive material capable of undergoing a storable and detectable photochemical reaction, preferably a polymer material containing a photoreactive component capable of photoisomerization and having in the repeating unit thereof at least one group selected from a urethane group, a urea group, an amide group, a carboxyl group and a hydroxyl group, and recording a distribution of an optical near field generated from the informative object being irradiated on the photosensitive material as a photoreacting quantity of the photosensitive material.