Inventor
Katsuhiro Iwasaki
Inventor
Tokyo, JP
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Bprimary
C21BManufacture of iron or steel24%
Y02PClimate change mitigation technologies in the production or processing of goods21%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel18%
C22BProduction and refining of metals8%
F27BFurnaces, kilns, ovens or retorts in general5%
C22CAlloys3%
G02BOptical elements, systems or apparatus3%
LOC143%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
B23CMilling2%
PatentTitleYear
11,067,755Optical fiber module and method for manufacturing the same2021D0879768Optical communication module2020D0879767Optical communication module202010,187,175Optical multiplexer/demultiplexer and optical transceiver20199,821,381'Gaseous fuel supply apparatus for sintering machine'20177,551,343'Magneto-optical device and manufacturing method thereof'20096,837,916'Smelting reduction method'20055,074,530'Apparatus for smelting reduction of iron ore'19915,065,985'Method for smelting reduction of iron ore and apparatus therefor'19915,047,081'Method of decarburizing high chromium molten metal'19915,047,082'Method for smelting reduction of Ni ore'19915,039,480'Method for manufacturing molten metal containing Ni and Cr'19915,017,220'Method for smelting reduction of Ni ore'19915,000,784'Method for smelting reduction of iron ore'19914,995,906'Method for smelting reduction of iron ore'19914,988,079'Apparatus for smelting and reducing iron ores'19914,961,784'Method of smelting reduction of chromium raw materials and a smelting reduction furnace thereof'19904,944,799'Method of producing stainless molten steel by smelting reduction'19904,936,908'Method for smelting and reducing iron ores'19904,935,054'Method of charging chromium ores in a smelting reduction'19904,792,352'Method for manufacturing steel through smelting reduction'19884,601,749'Method for adjusting chemical composition of molten pig iron tapped from blast furnace'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–2005Patents assigned to NIPPON KOKAN KK (16)· patent assignee history
1986Based in Fukuyama, JP· patent location history
1988–1991Based in Tokyo, JP· patent location history
2005–2017Based in Yokohama, JP· patent location history
2009Patents assigned to FDK CORP (1)· patent assignee history
2009Based in Shizuoka, JP· patent location history
2017Patents assigned to JFE STEEL CORP (1)· patent assignee history
2019–2021Patents assigned to KOHOKU KOGYO KK (4)· patent assignee history
2019–2021Based in Nagahama, JP· patent location history
2021Patents assigned to AIST (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON KOKAN KK | 16 | 1986–2005 |
| KOHOKU KOGYO KK | 4 | 2019–2021 |
| AIST | 1 | 2021 |
| FDK CORP | 1 | 2009 |
| JFE STEEL CORP | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 14 | 1988–1991 |
| Nagahama, JP | 4 | 2019–2021 |
| Yokohama, JP | 2 | 2005–2017 |
| Shizuoka, JP | 1 | 2009 |
| Fukuyama, JP | 1 | 1986 |