Inventor

Katsura Hata

Inventor
Tsukuba, JP

Overview

13→
Patents
1997–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 13 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 preparations16%
C07DHeterocyclic compounds14%
A61KPreparations for medical, dental or toiletry purposes11%
C07KPeptides11%
C12NMicroorganisms or enzymes11%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
C07CAcyclic or carbocyclic compounds4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%
Y02PClimate change mitigation technologies in the production or processing of goods4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–1998Patents assigned to EISAI CO LTD (3)· patent assignee history
1997–2012Based in Ibaraki, JP· patent location history
2008–2020Patents assigned to EISAI R&D MAN CO LTD (10)· patent assignee history
2008–2020Based in Tsukuba, JP· patent location history
2012Patents assigned to HATA KATSURA (1)· patent assignee history
2012Patents assigned to HORII TOSHIHIRO (1)· patent assignee history
2012Patents assigned to NAKAMOTO KAZUTAKA (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EISAI R&D MAN CO LTD102008–2020
EISAI CO LTD31997–1998
HATA KATSURAself12012
HORII TOSHIHIRO12012
NAKAMOTO KAZUTAKA12012
Locations
LocationPatentsSpan
Tsukuba, JP92008–2020
Ibaraki, JP41997–2012