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Inventor

Tsukasa Ishihara

Inventor
Tokyo, JP

Overview

15→
Patents
1998–2020
Patent span
Human necessities
Primary field (CPC A)

Patents· 15 as inventor

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

C07Dprimary
C07DHeterocyclic compounds36%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations31%
A61KPreparations for medical, dental or toiletry purposes29%
C07HSugars5%
PatentTitleYear
10,532,048Tetrahydroisoquinolin-1-one derivative or salt thereof202010,016,410Tetrahydroisoquinolin-1-one derivative or salt thereof20189,526,719'Tetrahydroisoquinolin-1-one derivative or salt thereof'20169,399,038'Benzothiophene compound'20169,150,541'Tetrahydroisoquinolin-1-one derivative or salt thereof'20158,981,119'Benzothiophene compound'20158,486,970'Tetrahydroisoquinolin-1-one derivative or salt thereof'2013RE043481'Diazepan derivatives or salts thereof'20127,786,106'Substituted benzene derivatives or salts thereof'20107,504,417'Substituted benzene derivatives or salts thereof'20097,307,074'Diazepan derivatives or salts thereof'20076,642,224'Diazepan derivatives or salts thereof'20036,333,320'Hexahydro-1,4-diazepine derivatives or salts thereof'20015,830,902'Quinuclidine derivative having tricyclic hetero condensed ring'19985,807,880'Azole derivative and pharmaceutical composition thereof'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2003Patents assigned to YAMANOUCHI PHARMA CO LTD (4)· patent assignee history
1998Based in Ibaraki, JP· patent location history
2001–2012Based in Tsukuba, JP· patent location history
2007–2016Patents assigned to ASTELLAS PHARMA INC (6)· patent assignee history
2010–2020Based in Tokyo, JP· patent location history
2012–2013Patents assigned to ISHIHARA TSUKASA (2)· patent assignee history
2012–2013Patents assigned to SEKI NORIO (2)· patent assignee history
2013–2020Patents assigned to SELDAR PHARMA INC (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASTELLAS PHARMA INC62007–2016
SELDAR PHARMA INC52013–2020
YAMANOUCHI PHARMA CO LTD41998–2003
ISHIHARA TSUKASAself22012–2013
SEKI NORIO22012–2013
Locations
LocationPatentsSpan
Tokyo, JP82010–2020
Tsukuba, JP52001–2012
Ibaraki, JP21998