Inventor
Hirosi Nagai
Inventor
Chofu, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Fprimary
A61FFilters implantable into blood vessels19%
A61LMethods or apparatus for sterilising materials or objects in general19%
C04BLime, magnesia15%
C01BNon-metallic elements12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
Y10TTechnical subjects covered by former us classification8%
A61CDentistry4%
A61KPreparations for medical, dental or toiletry purposes4%
H01LSemiconductor devices4%
H10HInorganic light-emitting semiconductor devices having potential barriers4%
PatentTitleYear
10,903,394Light emitting element20214,904,534'Implant material'19904,794,046'Implant material with continuous and two-dimensional pores and process for producing the same'19884,548,959'Hydroxyapatite, ceramic material and process for preparing thereof'19854,451,235'Process for preparing an artificial dental root'19844,448,758'Hydroxyapatite, ceramic material and process for preparing thereof'19844,330,514'Hydroxyapatite, ceramic material and process for preparing thereof'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1990Patents assigned to KUREHA CHEMICAL IND CO LTD (5)· patent assignee history
1982–1990Based in Chofu, JP· patent location history
1984Patents assigned to KUREHA KAGKU KAGYO KABUSHIKI K (1)· patent assignee history
2021Patents assigned to NICHIA CORP (1)· patent assignee history
2021Based in Tokushima, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KUREHA CHEMICAL IND CO LTD | 5 | 1982–1990 |
| KUREHA KAGKU KAGYO KABUSHIKI K | 1 | 1984 |
| NICHIA CORP | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chofu, JP | 6 | 1982–1990 |
| Tokushima, JP | 1 | 2021 |