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Inventor

Haruyuki Chaki

Inventor
Yokohama, JP

Overview

6→
Patents
1991–2001
Patent span
Chemistry
Primary field (CPC C)

Patents· 6 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 preparations29%
C07JSteroids21%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium14%
C07HSugars14%
A61KPreparations for medical, dental or toiletry purposes7%
C07DHeterocyclic compounds7%
G01NInvestigating or analysing materials by determining their chemical or physical properties7%
PatentTitleYear
6,288,041'Sialic acid derivatives'20015,952,337'Remedy and preventive for nervous system disorders'19995,783,564'Sialic acid derivatives'19985,712,254'Sialic acid derivatives'19985,151,521'1-aminoethyl phosphonic acid derivatives'19925,061,806'Phosphinic acid derivatives'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1992Patents assigned to MERCK & CO INC (2)· patent assignee history
1991–1998Based in Yokohama, JP· patent location history
1998–2001Patents assigned to MITSUBISHI CHEM CORP (4)· patent assignee history
1999–2001Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI CHEM CORP41998–2001
MERCK & CO INC21991–1992
Locations
LocationPatentsSpan
Yokohama, JP41991–1998
Kanagawa, JP21999–2001