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Optical recording materials, method for preparing the same and optical cards having the same    

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United States Patent5578415   
Link to this pagehttp://www.wikipatents.com/5578415.html
Inventor(s)Hayashi; Yoshio (Shizuoka-ken, JP); Ogawa; Shuichiro (Shizuoka-ken, JP); Iwata; Junichi (Shizuoka-ken, JP)
AbstractAn optical recording material comprising: a thin film or membrane of a hydrophobic binding agent; and metallic particles having a diameter of 0.003 .mu.m to 3 .mu.m dispersed in said film or membrane wherein the density of said metallic particles is higher near at least one surface of said film or membrane as compared with another portion of said film or membrane, each metallic particle having a nucleus and an outer coating, said outer coating consisting of at least one metal having a melting point of 250.degree. C. to 1800.degree. C. and a thermal conductivity at 0.degree. C. of 5 W.multidot.m.sup.-1 .multidot.K.sup.-1 to 450 W.multidot.m.sup.-1 .multidot.K.sup.-1 wherein the reflectivity of the surface of said film or membrane where the density of said metallic particle is higher is 10 to 90%., a method for preparing the optical recording material and an optical card containing the optical recording material.
   














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Drawing from US Patent 5578415
Optical recording materials, method for preparing the same and optical cards having the same - US Patent 5578415 Drawing
Optical recording materials, method for preparing the same and optical cards having the same
Inventor     Hayashi; Yoshio (Shizuoka-ken, JP); Ogawa; Shuichiro (Shizuoka-ken, JP); Iwata; Junichi (Shizuoka-ken, JP)
Owner/Assignee     Asahi Kasei Kogyo Kabushiki Kaisha (Osaka, JP)
Patent assignment
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Publication Date     November 26, 1996
Application Number     08/188,743
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     January 31, 1994
US Classification     430/270.11 283/74 283/77 283/85 346/135.1 430/247 430/248 430/417 430/945 430/964
Int'l Classification     G03C 008/28 G11B 007/24
Examiner     Angebranndt; Martin J.
Assistant Examiner    
Attorney/Law Firm     Birch, Stewart, Kolasch & Birch, LLP
Address
Parent Case     This application is a continuation of application Ser. No. 07/726,739 filed on Jul. 2, 1991 which is a continuation of application Ser. No. 07/404,586 filed on Sep. 8, 1989, both of which are now abandoned.
Priority Data     Sep 12, 1988[JP]63-226448 Nov 24, 1988[JP]63-294656 Dec 09, 1988[JP]63-310059 Dec 14, 1988[JP]63-313681 Dec 14, 1988[JP]63-313682 Dec 14, 1988[JP]63-313683 Dec 15, 1988[JP]63-314984 Feb 16, 1989[JP]1-35038 Feb 16, 1989[JP]1-35039 Feb 17, 1989[JP]1-36312 Feb 17, 1989[JP]1-36313 Feb 22, 1989[JP]1-40315 Feb 22, 1989[JP]1-40316 Feb 23, 1989[JP]1-41821 Feb 23, 1989[JP]1-41823 Jun 02, 1989[JP]1-139252 Jun 05, 1989[JP]1-141172 Jun 12, 1989[JP]1-146794 Aug 15, 1989[JP]1-209536
USPTO Field of Search     430/247 430/248 430/249 430/353 430/350 430/349 430/626 430/945 430/495 430/954 430/417 430/232 430/617 430/270.11 283/74 283/77 283/85 346/135.1 369/284 369/288
Patent Tags     optical recording materials, preparing optical cards
   
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Market Size
Estimate the gross annual revenues of the relevant market sector:
> $10B
$5B - $10B
$2B - $5B
$500M - $2B
$100M - $500M
$10M - $100M
$1M - $10M
$500K - $1M
$100K - $500K
< $100K
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$0
 
$0   $2.5B   $5B   $7.5B   $10B

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Market Share
Estimate the percentage of the relevant market sector this invention will capture:
75% - 100%
50% - 74.99%
25% - 49.99%
10 - 24.99%
5 - 9.99%
2 - 4.99%
1 - 1.99%
< 1%
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Reasonable Royalty
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75% - 100%
50% - 74.99%
25% - 49.99%
10 - 24.99%
<