Invention Grant
- Patent Title: Electrochromic compound, electrochromic composition, and display element
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Application No.: US14433176Application Date: 2013-11-01
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Publication No.: US10093693B2Publication Date: 2018-10-09
- Inventor: Toshiya Sagisaka , Hiroyuki Takahashi , Takashi Okada , Shigenobu Hirano , Tohru Yashiro , Koh Fujimura , Yoshihisa Naijo , Yoshinori Okada , Kazuaki Tsuji , Sukchan Kim , Keiichiroh Yutani , Tamotsu Horiuchi , Mamiko Inoue
- Applicant: Toshiya Sagisaka , Hiroyuki Takahashi , Takashi Okada , Shigenobu Hirano , Tohru Yashiro , Koh Fujimura , Yoshihisa Naijo , Yoshinori Okada , Kazuaki Tsuji , Sukchan Kim , Keiichiroh Yutani , Tamotsu Horiuchi , Mamiko Inoue
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2012-241679 20121101; JP2013-096261 20130501
- International Application: PCT/JP2013/080363 WO 20131101
- International Announcement: WO2014/069675 WO 20140508
- Main IPC: C07D401/10
- IPC: C07D401/10 ; C07D401/14 ; C07F9/6558 ; C09K9/02 ; C07F9/58 ; C07F7/08 ; G02F1/15

Abstract:
To provide an electrochromic compound, represented by the following general formula (I): General Formula (I) where X1, X2, X3, X4, X5, X6, X7 and X8 are each independently a hydrogen atom or a monovalent substituent; R1 and R2 are each independently a monovalent substituent; A− and B− are each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): General Formula (II) General Formula (III) where X9, X10, X11, X12, X13, X14, X15, X16, X17, and X18 are each independently a hydrogen atom or a monovalent substituent.
Public/Granted literature
- US20150274761A1 ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND DISPLAY ELEMENT Public/Granted day:2015-10-01
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