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Inventor

Atsuo Sakamoto

Inventor
Yokohama, JP

Overview

2→
Patents
1992–1997
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B01Dprimary
B01DSeparation40%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry40%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
5,672,422'Packing material for column and process for production thereof'19975,135,649'Column packing material with both hydrophobic and hydrophilic groups and process for production thereof'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1997Patents assigned to SHISEIDO CO LTD (2)· patent assignee history
1992–1997Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHISEIDO CO LTD21992–1997
Locations
LocationPatentsSpan
Yokohama, JP21992–1997