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LT - OPTICAL GLASS, GLASS PREFORM AND OPTICAL COMPONENT

EN - OPTICAL GLASS, GLASS PREFORM AND OPTICAL COMPONENT

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Bibliographic data

Indications of the International Patent Classification (IPC)
(51)	INT.CL.	C03C 3/068
		C03C 3/23
		G02B 1/00

European patent
(11)	Number of the document	3321237
(13)	Kind of document	T
(96)	European patent application number	16820985.6
	Date of filing the European patent application	2016-05-19
(97)	Date of publication of the European application	2018-05-16
(45)	Date of publication and mention of the grant of the patent	2021-03-10
(46)	Date of publication of the claims translation

PCT application
(86)	Number	PCT/JP2016/002450
	Date	2016-05-19

PCT application publication
(87)	Number	WO 2017/006505
	Date	2017-01-12

Priority applications
(30)	Number	Date	Country code
	2015136321	2015-07-07	JP

Inventors
(72)	TSUCHIYA, Koichi, JP YUKI, Toshinori, JP

Grantee
(73)	Sumita Optical Glass, Inc., 4-7-25, Harigaya Urawa-ku, Saitama-shi 330-8565, JP

Title
(54)	OPTICAL GLASS, GLASS PREFORM AND OPTICAL COMPONENT
	OPTICAL GLASS, GLASS PREFORM AND OPTICAL COMPONENT