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Inventor

Takashi Otsubo

Inventor
Osaka, JP

Overview

3→
Patents
1979–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes20%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations20%
B01DSeparation20%
C07DHeterocyclic compounds20%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
PatentTitleYear
10,898,469Imidazolylamide derivative20215,085,748'Process for enriching carbon 13'19924,142,399'Method for automatic quantitative measurement of hydrogen in a metal and an apparatus for carrying out said method'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1992Patents assigned to NIPPON STEEL CORP (2)· patent assignee history
1979Based in Machida, JP· patent location history
1992Patents assigned to NIPPON STEEL CHEMICAL CO (1)· patent assignee history
1992Patents assigned to RIKAGAKU KENKYUSHO (1)· patent assignee history
1992Based in Kawasaki, JP· patent location history
2021Patents assigned to SUMITOMO DAINIPPON PHARMA CO LTD (1)· patent assignee history
2021Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON STEEL CORP21979–1992
NIPPON STEEL CHEMICAL CO11992
RIKAGAKU KENKYUSHO11992
SUMITOMO DAINIPPON PHARMA CO LTD12021
Locations
LocationPatentsSpan
Osaka, JP12021
Kawasaki, JP11992
Machida, JP11979