Yoshiaki Kawashima

Patent Owner

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5180522 Colloid solution for preparing suspension having both fluidity and suspensibilityExpiredMar 04, 88Jan 19, 93[B01J]
5087455 Hollow granular medicine and its preparationExpiredSep 20, 90Feb 11, 92[A61K]
5057323 Hollow granular medicine and its preparationExpiredJun 19, 89Oct 15, 91[A61K]

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