Inventor · disambiguated record

Hiroyasu Ishiguro

Also filed as: ISHIGURO HIROYASU

1 granted patent·1 pending application·161 citations·filing 1997–2018

55Inventor score

Technology areasA23B E21B

Files withJAPAN DRILLING CO LTD1 NICHIREI FOODS INC1

Top patents by PatentIndex Score

2 records

0185US6217258B1Dual hoist derrick system for deep sea drillingJAPAN DRILLING CO LTD·Filed 1997·Granted Apr 17, 2001·161 cites·2 claims
0246US2020236958A1Frozen vegetableNICHIREI FOODS INC·Filed 2018·Application pending·0 cites

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →