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:
Jan. 05, 1999
Filed:
Nov. 27, 1996
Applicant:
Inventors:
Kunihiro Sakata, Kumamoto, JP;
Hiroshi Nonaka, Kumamoto, JP;
Toshinori Suenaga, Kumaoto, JP;
Shingo Tokunaga, Kumamoto, JP;
Susumu Shuutoku, Kumamoto, JP;
Goro Fujiwara, Osaka, JP;
Mitsunobu Masuda, Osaka, JP;
Shinji Hattori, Osaka, JP;
Naoki Irie, Osaka, JP;
Assignees:
Takuma Co., Ltd., Osaka, JP;
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
442255 ; 34 81 ; 52408 ; 5250601 ; 5250606 ; 442232 ; 442261 ; 442378 ; 442394 ;
Abstract
An ionic substance removing material for use in a super-clean room and a method of manufacturing the material are disclosed. The material includes an ion exchanger capable of an ion exchange reaction, a non-ion exchange permeable layer and an anti-dust generation layer. The material is secured by the surface of a concrete wall.