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Inventor

Masako Naganuma

Inventor
Yokohama, JP

Overview

4→
Patents
1982–2001
Patent span
Human necessities
Primary field (CPC A)

Patents· 4 as inventor

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

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes40%
A61QSpecific use of cosmetics or similar toiletry preparations40%
C07CAcyclic or carbocyclic compounds10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
6,169,114'Endermic liniment containing a thiol compound and zinc oxide'20015,631,002'Liniment for melanin inhibitors'19975,580,549'External preparation for skin'19964,322,544'Ultraviolet absorbing agent'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to TORAY INDUSTRIES (1)· patent assignee history
1982–1997Based in Yokohama, JP· patent location history
1996–2001Patents assigned to SHISEIDO CO LTD (3)· patent assignee history
2001Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHISEIDO CO LTD31996–2001
TORAY INDUSTRIES11982
Locations
LocationPatentsSpan
Yokohama, JP31982–1997
Tokyo, JP12001