Inventor
Kenjiro Obara
Inventor
Ibaraki, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Lprimary
F16LPipes20%
C10MLubricating compositions10%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions10%
C23CCoating metallic material10%
F16JPistons10%
G01SRadio direction-finding10%
G02BOptical elements, systems or apparatus10%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
6,529,268'Baseline length variable surface geometry measuring apparatus and range finder'20035,630,592'Metal gasket, vacuum flange for the metal gasket, and vacuum seal structure using the metal gasket'19975,013,466'Lubricating grease'19914,988,130'Metal seal flange assembly'19914,582,728'Process for preparing a titanium carbide film'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–2003Patents assigned to JAPAN ATOMIC ENERGY RES INST (5)· patent assignee history
1986Based in Ibaragi, JP· patent location history
1991Patents assigned to NATSUMRA OIL RESEARCH CORP (1)· patent assignee history
1991Patents assigned to TOSHIBA KK (1)· patent assignee history
1991–2003Based in Ibaraki, JP· patent location history
1997Patents assigned to JAPAN VAC S METAL CO LTD (1)· patent assignee history
2003Patents assigned to LIGHTSTEP CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| JAPAN ATOMIC ENERGY RES INST | 5 | 1986–2003 |
| JAPAN VAC S METAL CO LTD | 1 | 1997 |
| LIGHTSTEP CORP | 1 | 2003 |
| NATSUMRA OIL RESEARCH CORP | 1 | 1991 |
| TOSHIBA KK | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 4 | 1991–2003 |
| Ibaragi, JP | 1 | 1986 |