Inventor

Toshio Yokoyama

Inventor
Tokyo, JP

Overview

4→
Patents
1993–2000
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 purposes67%
C07DHeterocyclic compounds33%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2000Patents assigned to SS PHARMACEUTICAL CO (3)· patent assignee history
1993–2000Based in Tokyo, JP· patent location history
2000Patents assigned to SSP CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SS PHARMACEUTICAL CO31993–2000
SSP CO LTD12000
Locations
LocationPatentsSpan
Tokyo, JP41993–2000