Inventor

Yasushi Okamoto

Inventor

Ibaraki, JP

Overview

15→

Patents

1991–2005

Patent span

Chemistry

Primary field (CPC C)

Patents· 15 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds27%

C07DHeterocyclic compounds27%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations24%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium11%

Y02PClimate change mitigation technologies in the production or processing of goods8%

A61KPreparations for medical, dental or toiletry purposes3%

PatentTitleYear

6,916,837'Amidino derivatives and anticoagulants and thrombosis therapeutic agents containing them'2005 6,358,995'Carboxylic acid derivatives having fused rings'2002 6,121,309'Fused-ring carboxylic acid derivatives'2000 6,110,959'Carboxylic acid derivatives having fused rings'2000 5,635,519'Benzothiazole compounds which are substituted by pyridymethyl'1997 5,527,948'Naphthalene derivative'1996 5,420,144'Pyridyl substituted benzothiazole compounds which have useful pharmaceutical utility'1995 5,385,942'Quinone derivatives and pharmacological use'1995 5,329,010'Quinone derivatives'1994 5,306,714'(S)-2,3-dihydropolyprenyl, monophosphate, and agents for inhibiting the metastasis of cancers'1994 5,300,518'Pyridyl substituted benzothiazole compounds which have useful pharmaceutical utility'1994 5,298,649'Naphthalene derivative'1994 5,210,239'Ouinone derivatives and pharmacological use'1993 5,134,111'Naphthalene derivative'1992 5,004,735'Pharmaceutical compositions for the inhibition of tumor metastasis'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1994Patents assigned to NISSHIN FLOUR MILLING CO (2)· patent assignee history

1991–1994Based in Tokyo, JP· patent location history

1992–2005Patents assigned to EISAI CO LTD (12)· patent assignee history

1992–2002Based in Tsukuba, JP· patent location history

1993–2005Based in Ibaraki, JP· patent location history

1996Patents assigned to EISAI CORP LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EISAI CO LTD	12	1992–2005
NISSHIN FLOUR MILLING CO	2	1991–1994
EISAI CORP LTD	1	1996

Locations

Location	Patents	Span
Ibaraki, JP	7	1993–2005
Tsukuba, JP	6	1992–2002
Tokyo, JP	2	1991–1994