光情報記録媒体及び情報記録方法

Japanese Patent JP4044251

B2

PROBLEM TO BE SOLVED: To provide an optical information recording medium capable of recording and reproducing particularly with a short wavelength laser beam having a wavelength of 550 nm or less and having excellent recording characteristics. SOLUTION: In the optical recording medium comprising a recording layer capable of recording information by irradiating it with a laser beam on a substrate, the layer contains a dye compound represented by R1R2C=CR3Φ [wherein R1 and R2 are each independently an electron attractive group having a Hammett substitution constant σp of a range of 0.2 to 0.9, R3 is a hydrogen atom or a substituent, Φ is an aryl group or aromatic heterocyclic group having only the Hammett substitution constant σp of the range of -0.6 to 0.0 in such a manner that any two of R1, R3, R3 and Φ may be bonded to each other to form a ring together with carbon atoms respectively bonded thereto.].

Naoki Saito
Yuhisa Usami
Noboru Komori

JP24904299A

February 06, 2008

September 02, 1999

Click for automatic bibliography generation  

FUJIFILM Corporation

B41M5/26; G11B7/244; G11B7/246

JP11078239A
JP11105423A
JP1157944A
JP9058130A
JP8252971A
JP3138194A
JP11203729A

化学便覧基礎編 改訂版4版,丸善(株),1993年 9月30日,II-347乃至348頁
Journal of THE AMERICAN CHEMICAL SOCIETY,1959年 4月20日,VoL .81、No.8,1980-1983頁
Journal of the Serbian Chemical Society,1994年,59(10),715-726頁
Bulletin of the Chemical Society of Japan,1932年,7,45-50頁
Journal of Chemical Physics ,1950年,18,1307-1308頁

Yanagawa Yasuo

Previous Patent: 振出式釣竿

Next Patent: インクジェット記録用水系インク