Details for Patent: 5,330,767

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Summary for Patent: 5,330,767

Title:	Sustained release microcapsule
Abstract:	Microcapsules are advantageously produced with high take-up of a water-soluble drug by preparing a W/O emulsion composed of a water-soluble drug-containing solution as the inner aqueous phase and a polymer-containing solution as the oil phase, dispersing said emulsion in an aqueous phase and subjecting the resulting W/O/W emulsion to an in-water drying, wherein the viscosity of the W/O emulsion used in preparing the W/O/W emulsion is adjusted to about 150 to about 10,000 centipoises.
Inventor(s):	Yamamoto; Masaki (Osaka, JP), Takada; Shigeyuki (Osaka, JP), Ogawa; Yasuaki (Osaka, JP)
Assignee:	Takeda Chemical Industries, Ltd. (Osaka, JP)
Application Number:	07/936,726
Patent Claim Types: see list of patent claims	Dosage form; Process;

Drugs Protected by US Patent 5,330,767

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

Foreign Priority and PCT Information for Patent: 5,330,767

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Japan	60-22978	Feb 07, 1985
Japan	60-267977	Nov 27, 1985

International Family Members for US Patent 5,330,767

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Austria	61935	⤷ Sign Up
Canada	1260395	⤷ Sign Up
Germany	3678308	⤷ Sign Up
European Patent Office	0190833	⤷ Sign Up
Spain	551696	⤷ Sign Up
Spain	8703739	⤷ Sign Up
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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