Inventor
Hiroo Honda
Inventor
Osaka, JP
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B28Dprimary
B28DWorking stone or stone-like materials50%
E21DShafts50%
PatentTitleYear
4,673,218'Tunnel excavation method'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to OKUMURA CORP (1)· patent assignee history
1987Based in Osaka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| OKUMURA CORP | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 1 | 1987 |