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Inventor

Hisashi Ohta

Inventor
Tsukuba, JP

Overview

7→
Patents
1987–2012
Patent span
Human necessities
Primary field (CPC A)

Patents· 7 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 preparations38%
C07DHeterocyclic compounds38%
A61KPreparations for medical, dental or toiletry purposes13%
C21DModifying the physical structure of ferrous metals6%
C22CAlloys6%
PatentTitleYear
8,101,618'1,4-substituted piperazine derivatives'20127,902,369'Diaryl-substituted five-membered heterocycle derivative'20117,858,800'Biaryl derivatives'20107,829,586'Aryl-substituted nitrogen-containing heterocyclic compounds'20107,557,117'4-oxoimidazolidine-2-spiropiperidine derivatives'20097,300,947'N-dihydroxyalkyl-substituted 2-oxo-imidazole derivatives'20074,634,573'Steel for cold forging and method of making'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to DAIDO STEEL CO LTD (1)· patent assignee history
1987Based in Aichi, JP· patent location history
2007–2011Patents assigned to BANYU PHARMA CO LTD (5)· patent assignee history
2007–2011Based in Tsukuba, JP· patent location history
2012Patents assigned to KAWAMOTO HIROSHI (1)· patent assignee history
2012Patents assigned to KIMURA TOSHIFUMI (1)· patent assignee history
2012Patents assigned to MSD KK (1)· patent assignee history
2012Based in Tsukkuba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BANYU PHARMA CO LTD52007–2011
DAIDO STEEL CO LTD11987
KAWAMOTO HIROSHI12012
KIMURA TOSHIFUMI12012
MSD KK12012
Locations
LocationPatentsSpan
Tsukuba, JP52007–2011
Tsukkuba, JP12012
Aichi, JP11987