Inventor
Sabro Takaoka
Inventor
Tokyo, JP
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling100%
PatentTitleYear
4,046,204'Controlled directional drilling tool'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977Patents assigned to AGENCY IND SCIENCE TECHN (1)· patent assignee history
1977Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AGENCY IND SCIENCE TECHN | 1 | 1977 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 1 | 1977 |