Inventor

Yuji Ishihara

Inventor
Itami, JP

Overview

20→
Patents
1993–2012
Patent span
Chemistry
Primary field (CPC C)

Patents· 20 as inventor

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

C07Dprimary
C07DHeterocyclic compounds37%
A61KPreparations for medical, dental or toiletry purposes20%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations20%
C07CAcyclic or carbocyclic compounds16%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
Y02PClimate change mitigation technologies in the production or processing of goods2%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2005Patents assigned to TAKEDA CHEMICAL INDUSTRIES LTD (12)· patent assignee history
1993–2012Based in Itami, JP· patent location history
1995–2007Based in Hyogo, JP· patent location history
2002Based in Ibaraki, JP· patent location history
2006–2012Patents assigned to TAKEDA PHARMACEUTICAL (8)· patent assignee history
2009Based in Osaka, JP· patent location history
2012Patents assigned to DOI TAKAYUKI (1)· patent assignee history
2012Patents assigned to ISHICHI YUJI (1)· patent assignee history
2012Patents assigned to ISHIHARA YUJI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TAKEDA CHEMICAL INDUSTRIES LTD121993–2005
TAKEDA PHARMACEUTICAL82006–2012
DOI TAKAYUKI12012
ISHICHI YUJI12012
ISHIHARA YUJIself12012
Locations
LocationPatentsSpan
Itami, JP141993–2012
Hyogo, JP41995–2007
Osaka, JP12009
Ibaraki, JP12002