Inventor
Hidehiko Sumitomo
Inventor
Hikari, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Dprimary
C21DModifying the physical structure of ferrous metals21%
Y10TTechnical subjects covered by former us classification21%
C22CAlloys17%
B22DCasting of metals10%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys7%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
B22FWorking metallic powder3%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general3%
F02BInternal-combustion piston engines3%
H01FMagnets3%
PatentTitleYear
6,827,755'High-toughness and high-strength ferritic steel and method of producing the same'20045,426,084'Highly heat-resistant metallic carrier for an automobile catalyst'19955,411,610'High-strength stainless steel foil for corrugating and process for producing the same'19955,394,721'Method of producing permalloy cores'19955,286,315'Process for preparing rollable metal sheet from quenched solidified thin cast sheet as starting material'19945,102,477'Method of manufacturing high permeability Fe-Ni system alloy'19925,092,393'Process for producing cold-rolled strips and sheets of austenitic stainless steel'19925,030,296'Process for production of Cr-Ni type stainless steel sheet having excellent surface properties and material quality'19914,851,059'Non-magnetic high hardness austenitic stainless steel'19894,420,347'Process for producing an austenitic stainless steel sheet or strip'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1995Patents assigned to NIPPON STEEL CORP (9)· patent assignee history
1983–1995Based in Hikari, JP· patent location history
1989Patents assigned to TNK SANWA PRECISION CO LTD (1)· patent assignee history
1989Based in Yamaguchi, JP· patent location history
1994Based in Hiraki, JP· patent location history
2004Patents assigned to HITACHI LTD (1)· patent assignee history
2004Based in Ube, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON STEEL CORP | 9 | 1983–1995 |
| HITACHI LTD | 1 | 2004 |
| TNK SANWA PRECISION CO LTD | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hikari, JP | 7 | 1983–1995 |
| Ube, JP | 1 | 2004 |
| Hiraki, JP | 1 | 1994 |
| Yamaguchi, JP | 1 | 1989 |