LexDanaLexDanabeta
Inventor

Yoshiyuki Hirakawa

Inventor
Kobe, JP

Overview

7→
Patents
1990–1998
Patent span
Human necessities
Primary field (CPC A)

Patents· 7 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes78%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations22%
PatentTitleYear
5,725,880'Pharmaceutical preparation controlled to release medicinal active ingredient at targeted site in intestinal tract'19985,614,220'Pharmaceutical preparation controlled to release medicinal active ingredient at targeted site in intestinal tract'19975,395,628'Controlled release succinic acid microcapsules coated with aqueous acrylics'19955,320,853'Controlled release formulation for pharmaceutical compounds'19945,254,347'Controlled release pharmaceutical preparation and method for producing the same'19935,068,112'Controlled release pharmaceutical preparation and method for producing the same'19914,966,899'Antibacterial lyophilized preparation of aspoxicillin'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1998Patents assigned to TANABE SEIYAKU CO (6)· patent assignee history
1990–1993Based in Toyonaka, JP· patent location history
1994Patents assigned to MERRELL DOW PHARMA (1)· patent assignee history
1994Based in Hyogo, JP· patent location history
1995–1998Based in Kobe, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TANABE SEIYAKU CO61990–1998
MERRELL DOW PHARMA11994
Locations
LocationPatentsSpan
Kobe, JP31995–1998
Toyonaka, JP31990–1993
Hyogo, JP11994