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. 20, 1991
Filed:
Mar. 28, 1989
Applicant:
Inventors:
Junji Ohyama, Yamato, JP;
Harumi Iwashita, Atsugi, JP;
Kinya Kato, Yokohama, JP;
Nobuko Yamamoto, Isehara, JP;
Masanori Sakuranaga, Atsugi, JP;
Tsunehiro Kanno, Isehara, JP;
Yasuko Tomida, Ebina, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
21050027 ; 430332 ;
Abstract
An ion permeable membrane, comprising two or more groups of substances having different sensitive wavelength regions in a lipid membrane, is provided.