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Inventor

Isao Souma

Inventor
Ibaraki, JP

Overview

4→
Patents
1990–2000
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C04Bprimary
C04BLime, magnesia29%
Y10TTechnical subjects covered by former us classification29%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables14%
C22CAlloys14%
F16DCouplings for transmitting rotation14%
PatentTitleYear
6,019,307'Paper pasting device'20005,306,563'High-performance C/C composite'19945,215,689'Method for production of high-performance C/C composites'19934,902,473'Rotary brake disc'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to NIPPON STEEL CORP (1)· patent assignee history
1990Based in Hanyu, JP· patent location history
1993–1994Patents assigned to AGENCY IND SCIENCE TECHN (2)· patent assignee history
1993–1994Based in Ibaraki, JP· patent location history
1994Patents assigned to MITI MINI INT TRADE & IND (1)· patent assignee history
2000Patents assigned to TOKYO KIKAI SEISAKUSHO LTD (1)· patent assignee history
2000Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AGENCY IND SCIENCE TECHN21993–1994
MITI MINI INT TRADE & IND11994
NIPPON STEEL CORP11990
TOKYO KIKAI SEISAKUSHO LTD12000
Locations
LocationPatentsSpan
Ibaraki, JP21993–1994
Kanagawa, JP12000
Hanyu, JP11990