Inventor · disambiguated record
Masahiko Ohshima
Also filed as: OHSHIMA MASAHIKO
2 granted patents·25 citations·filing 1997–2018
53Inventor score
Files withHITACHI METALS LTD2
Top patents by PatentIndex Score
2 records- 0156US11340196B2Online crack detection device for rolling roll, rolling roll, and online crack detection method for rolling rollHITACHI METALS LTD·Filed 2018·Granted May 24, 2022·0 cites·16 claims
- 0254US6077327AAluminum composite material of low-thermal expansion and high-thermal conductivity and method of producing sameHITACHI METALS LTD·Filed 1997·Granted Jun 20, 2000·25 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →