Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1993-01-22
1995-04-18
Ryan, Patrick J.
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
428 65, 428457, 428913, 430270, 430945, 3461351, B32B 300
Patent
active
054077192
ABSTRACT:
An optical information recording medium comprising a light transmitting substrate, a light absorptive layer containing at least one light absorbing substance formed on the substrate and a light reflective layer made of a metal film formed on the light absorptive layer, wherein an optical parameter represented by .rho.=n.sub.abs d.sub.abs /.lambda. wherein n.sub.abs is the real part of the complex refractive index of the light absorptive layer, d.sub.abs is the average thickness of the light absorptive layer and .lambda. is the wavelength of a reading laser beam, is 0.6<.rho.<1.6.
REFERENCES:
patent: 4735839 (1988-04-01), Sato et al.
patent: 5154958 (1992-10-01), Namba
patent: 5204152 (1993-04-01), Yoshizawa
patent: 5204153 (1993-04-01), Matsui
Patent Abstracts of Japan, vol. 11, No. 362 (P-640)(2809), Nov. 26, 1987, JP-A-62-137745, Jun. 20, 1987.
Patent Abstracts of Japan, vol. 9, No. 327 (P-415)(2050), Dec. 21, 1985, JP-A-60 151850, Aug. 9, 1985.
Patent Abstracts of Japan, vol. 11, No. 328, (P-629) (2775), Oct. 27, 1987, J-A.noteq.62 11063, May 21, 1987.
Arai Yuji
Hamada Emiko
Ishiguro Takashi
Takagisi Yosikazu
Evans Elizabeth
Ryan Patrick J.
Taiyo Yuden Co. Ltd.
LandOfFree
Optical information recording medium and recording method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical information recording medium and recording method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical information recording medium and recording method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-65453