HAYASHIBARA BIOCHEMICAL LABORATORIES, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0226,135 Write-once information recording mediumAbandonedApr 12, 05Oct 13, 05[G11B]
2005/0227,178 Recording material for mediumAbandonedApr 12, 05Oct 13, 05[G11B]
5317095 Alpha-D-glycosyl kasugamycin, its preparation, and antibacterial agent containing the sameExpiredMar 03, 93May 31, 94[C07H, C12P]
4370472 Plasma expanderExpiredMay 21, 80Jan 25, 83[A61K, C07H]
4205218 Covered electrode for arc weldingExpiredMar 27, 78May 27, 80[B23K]
4186024 Method for improving water-resistance of pullulanExpiredJun 03, 76Jan 29, 80[C08L]

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