Inventor
Sai Ogawa
Inventor
Tokai, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification16%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution12%
C04BLime, magnesia8%
C23CCoating metallic material8%
H01FMagnets8%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy8%
H01QAntennas, i.e. radio aerials8%
H05KPrinted circuits8%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%
Y02TClimate change mitigation technologies related to transportation8%
PatentTitleYear
8,974,971'Positive electrode for rechargeable lithium ion battery, rechargeable lithium ion battery, and battery module'20157,824,807'Positive electrode material for lithium secondary battery and lithium secondary battery'20107,218,266'Electromagnetic wave absorber, method of manufacturing the same and appliance using the same'20076,919,387'Electromagnetic wave absorber, method of manufacturing the same and appliance using the same'20055,545,484'Heat and oxidation resistive high strength material and its production method'19965,242,264'Machine on ground provided with heat resistant wall used for isolating from environment and heat resistant wall used therefor'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2015Patents assigned to HITACHI LTD (5)· patent assignee history
1993Based in Tohkai, JP· patent location history
1996Based in Ibaraki, JP· patent location history
2005–2010Based in Tokai, JP· patent location history
2015Patents assigned to KITAGAWA KAN (1)· patent assignee history
2015Patents assigned to KOBAYASHI MITSURU (1)· patent assignee history
2015Patents assigned to ODA MASANARI (1)· patent assignee history
2015Patents assigned to OGAWA SAI (1)· patent assignee history
2015Based in Naka-gun, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 5 | 1993–2015 |
| KITAGAWA KAN | 1 | 2015 |
| KOBAYASHI MITSURU | 1 | 2015 |
| ODA MASANARI | 1 | 2015 |
| OGAWA SAIself | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokai, JP | 3 | 2005–2010 |
| Naka-gun, JP | 1 | 2015 |
| Ibaraki, JP | 1 | 1996 |
| Tohkai, JP | 1 | 1993 |