Inventor
Masanao Oshima
Inventor
Tokyo, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B63Bprimary
B63BShips or other waterborne vessels50%
E02BHydraulic engineering40%
E02DFoundations10%
PatentTitleYear
4,630,969'Artificial island'19864,571,125'Floating offshore structure'19864,519,728'Floating offshore structure'19854,457,250'Floating-type offshore structure'19844,326,822'Artificial island for installing oil drilling equipment in ice covered sea areas'19824,230,423'Ice-breaking apparatus for structure for use in icy waters'19804,198,917'Ice-breaking means for ships'19804,152,999'Ice-breaking apparatus for ships and barges for operation on icy waters'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1986Patents assigned to MITSUI SHIPBUILDING ENG (8)· patent assignee history
1979–1986Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUI SHIPBUILDING ENG | 8 | 1979–1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 8 | 1979–1986 |