Invention Grant
- Patent Title: Chromene compound
- Patent Title (中): 色烯化合物
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Application No.: US12991859Application Date: 2009-05-08
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Publication No.: US08147726B2Publication Date: 2012-04-03
- Inventor: Soko Kasai , Shinobu Izumi
- Applicant: Soko Kasai , Shinobu Izumi
- Applicant Address: JP Yamaguchi
- Assignee: Tokuyama Corporation
- Current Assignee: Tokuyama Corporation
- Current Assignee Address: JP Yamaguchi
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2008-123510 20080509; JP2008-141128 20080529
- International Application: PCT/JP2009/059025 WO 20090508
- International Announcement: WO2009/136668 WO 20091112
- Main IPC: G02B5/23
- IPC: G02B5/23 ; C07D311/78 ; C07D311/94
Abstract:
A chromene compound represented by the following formula (1): wherein R1, R2, R3, R4, R5, R6, m, and n are defined in the specification. The chromene compound is rarely deteriorated by exposure.
Public/Granted literature
- US20110062396A1 CHROMENE COMPOUND Public/Granted day:2011-03-17
Information query
