Inventor · disambiguated record
Hisao Matsunaga
Also filed as: MATSUNAGA HISAO
1 granted patent·3 pending applications·0 citations·filing 2021–2024
9Inventor score
Top patents by PatentIndex Score
4 records- 0167US12337407B2Copper alloy assembly and production method thereforUNIV KYUSHU NAT UNIV CORP·Filed 2023·Granted Jun 24, 2025·0 cites·23 claims
- 0267US2024279764A1Martensitic stainless steel for hydrogen gas environment and manufacturing method thereforDAIDO STEEL CO LTD·Filed 2024·Application pending·0 cites
- 0366US2024209468A1Martensitic stainless steel material for hydrogen gas environment and manufacturing method thereforDAIDO STEEL CO LTD·Filed 2023·Application pending·0 cites
- 0447US2025075831A1Steel pipe for high-pressure hydrogen piping and high-pressure hydrogen piping using sameUSUI CO LTD·Filed 2021·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →