Inventor

Tsutomu Sakashita

Inventor
Ibaraki, JP

Overview

5→
Patents
1980–2001
Patent span
Performing operations
Primary field (CPC B)

Patents· 5 as inventor

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

B22Dprimary
B22DCasting of metals43%
Y10TTechnical subjects covered by former us classification29%
H01GCapacitors14%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light14%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1989Patents assigned to SUMITOMO METAL IND (3)· patent assignee history
1980Based in Ibaragi, JP· patent location history
1987–1989Based in Ibaraki, JP· patent location history
1994Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (1)· patent assignee history
1994Based in Uji, JP· patent location history
2001Patents assigned to SONY CORP (1)· patent assignee history
2001Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO METAL IND31980–1989
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11994
SONY CORP12001
Locations
LocationPatentsSpan
Ibaraki, JP21987–1989
Tokyo, JP12001
Uji, JP11994
Ibaragi, JP11980