Invention Grant
- Patent Title: Identifying medium, identifying medium manufacturing method, article, and identifying medium identifying method
- Patent Title (中): 识别介质，识别介质制造方法，文章和识别介质识别方法
-
Application No.: US12309953Application Date: 2007-08-09
-
Publication No.: US08168080B2Publication Date: 2012-05-01
- Inventor: Hidekazu Hoshino , Itsuo Takeuchi , Shinya Nasubida
- Applicant: Hidekazu Hoshino , Itsuo Takeuchi , Shinya Nasubida
- Applicant Address: JP Yokohama-shi
- Assignee: NHK Spring Co., Ltd.
- Current Assignee: NHK Spring Co., Ltd.
- Current Assignee Address: JP Yokohama-shi
- Agency: Oliff & Berridge PLC
- Priority: JP2006-216473 20060809
- International Application: PCT/JP2007/065653 WO 20070809
- International Announcement: WO2008/018560 WO 20080214
- Main IPC: C09K19/00
- IPC: C09K19/00 ; C09K19/06 ; C09K19/32 ; C09K19/52
Abstract:
An identifying medium comprises a nematic liquid crystal layer for forming a latent image with gradation, and the nematic liquid crystal layer has a thickness distribution corresponding to the gradation.
Public/Granted literature
Information query
