Inventor
Akira Seki
Inventor
Ashiya, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Cprimary
C22CAlloys19%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy11%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution11%
Y02PClimate change mitigation technologies in the production or processing of goods11%
C21DModifying the physical structure of ferrous metals5%
B21BRolling of metal3%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material3%
B22DCasting of metals3%
B23KSoldering or unsoldering3%
B23PMetal-working not otherwise provided for3%
PatentTitleYear
10,774,405Steel and method of manufacturing the same202010,266,911Hot-formed member and manufacturing method of same201910,090,678Production energy management system and computer program20189,680,162'Stainless steel sheet for a separator for a solid polymer fuel cell and a solid polymer fuel cell employing the separator'20178,100,313'Source blank for stainless steel three-ply clad sheet, production methods of clad steel plate and sheet for solid polymer type fuel cell separator, and solid polymer type fuel cell separator'20127,776,486'Titanium-based material for fuel cell separators and a method for the production thereof'20106,379,476'Stainless steel product for producing polymer electrode fuel cell'20025,957,190'Method of integrally attaching hollow member to cast product by casting and apparatus therefor'19995,206,883'Violation control circuit in ISDN'19934,770,703'Sintered stainless steel and production process therefor'19884,676,964'Process for purifying silica'19874,655,831'Method of stabilizing a steel making slag'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to KAWATETSU MINING (2)· patent assignee history
1987Based in Funabashi, JP· patent location history
1988–2012Patents assigned to SUMITOMO METAL IND (4)· patent assignee history
1993Patents assigned to ANDO ELECTRIC (1)· patent assignee history
1993–2018Based in Tokyo, JP· patent location history
1999Based in Toyota, JP· patent location history
2002–2020Based in Ashiya, JP· patent location history
2012–2017Patents assigned to SEKI AKIRA (2)· patent assignee history
2012Based in Osaka, JP· patent location history
2017–2020Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUMITOMO METAL IND | 4 | 1988–2012 |
| NIPPON STEEL & SUMITOMO METAL CORP | 3 | 2017–2020 |
| KAWATETSU MINING | 2 | 1987 |
| SEKI AKIRAself | 2 | 2012–2017 |
| ANDO ELECTRIC | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ashiya, JP | 5 | 2002–2020 |
| Tokyo, JP | 2 | 1993–2018 |
| Funabashi, JP | 2 | 1987 |
| Osaka, JP | 1 | 2012 |
| Toyota, JP | 1 | 1999 |