Inventor
Kiichi Honma
Inventor
Tokyo, JP
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Dprimary
E21DShafts100%
PatentTitleYear
5,032,039'Underground excavator'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991Patents assigned to DAIHO CONSTRUCTION CO LTD (1)· patent assignee history
1991Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DAIHO CONSTRUCTION CO LTD | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 1 | 1991 |