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Inventor

Tadashi Nagakura

Inventor
Tsukuba, JP

Overview

10→
Patents
2002–2012
Patent span
Human necessities
Primary field (CPC A)

Patents· 10 as inventor

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

A61Pprimary
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations42%
C07DHeterocyclic compounds42%
A61KPreparations for medical, dental or toiletry purposes13%
C07CAcyclic or carbocyclic compounds4%
PatentTitleYear
8,163,787'Triazolone derivatives'20127,928,228'Triazolone derivatives'20117,816,522'Triazolone derivatives'20107,807,690'2,3-dihydro-iminoisoindole derivatives'20107,772,226'Condensed imidazole derivatives'20107,238,720'Pharmaceutical use of N-carbamoylazole derivatives'20077,074,798'Xanthine derivative and DPPIV inhibitor'20066,916,837'Amidino derivatives and anticoagulants and thrombosis therapeutic agents containing them'20056,699,870'Phthalazine compounds and therapeutic agents for erectile dysfunction'20046,498,159'Phthalazine derivatives and remedies for erectile dysfunction'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2011Patents assigned to EISAI CO LTD (6)· patent assignee history
2002–2006Based in Ibaraki, JP· patent location history
2005–2007Based in Ushiku, JP· patent location history
2007–2012Patents assigned to EISAI R&D MAN CO LTD (5)· patent assignee history
2010–2012Based in Tsukuba, JP· patent location history
2012Patents assigned to AZUMA HIROSHI (1)· patent assignee history
2012Patents assigned to CLARK RICHARD (1)· patent assignee history
2012Patents assigned to HIROTA SHINSUKE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EISAI CO LTD62002–2011
EISAI R&D MAN CO LTD52007–2012
AZUMA HIROSHI12012
CLARK RICHARD12012
HIROTA SHINSUKE12012
Locations
LocationPatentsSpan
Tsukuba, JP52010–2012
Ibaraki, JP32002–2006
Ushiku, JP22005–2007