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:
Aug. 21, 2001
Filed:
Jan. 22, 1999
Applicant:
Inventors:
Kenji Sano, Tokyo, JP;
Katsuyuki Naito, Tokyo, JP;
Satoshi Takayama, Kawasaki, JP;
Sawako Fujioka, Tokyo, JP;
Tetsuo Okuyama, Yokohama, JP;
Shigeru Machida, Kawasaki, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
B08B 3/04 ; B08B 3/08 ; B08B 3/10 ;
U.S. Cl.
CPC ...
B08B 3/04 ; B08B 3/08 ; B08B 3/10 ;
Abstract
An image forming material formed on a paper sheet and containing a color former, a developer and a decolorizer, is decolored by heating of the image forming material, contacting the image forming material with a solvent optionally containing a decolorizer, and removing a residual solvent from the paper sheet.