The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2000
Filed:
Dec. 21, 1998
Applicant:
Inventors:
En Lai Zhang, Chiba, JP;
Kiyoshi Sugie, Funabashi, JP;
Mioko Suzuki, Chiba, JP;
Yoshinari Ogawa, Sagamihara, JP;
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
524406 ; 524413 ; 524430 ; 524431 ; 524432 ; 524433 ; 524435 ; 524436 ; 524440 ; 524441 ; 523137 ; 522-2 ;
Abstract
A thermoplastic resin composition having laser marking ability, which comprises a thermoplastic resin and at least two kinds of metal oxides, the content of total metal oxides being 0.001 to 10 parts by weight per 100 parts by weight of said thermoplastic resin; and a keyboard having keys composed of the above composition.