Inventor · disambiguated record
Ryoji Ishigaki
Also filed as: ISHIGAKI RYOJI
4 granted patents·17 citations·filing 2008–2015
70Inventor score
Top patents by PatentIndex Score
4 records- 0185US8313589B2High-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics and method for producing the sameTAKASAWA KOICHI·Filed 2008·Granted Nov 20, 2012·11 cites·4 claims
- 0276US8974612B2High-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics and method for producing the sameTAKASAWA KOUICHI·Filed 2009·Granted Mar 10, 2015·4 cites·10 claims
- 0365US8234930B2Method of determining fatigue of pressure-resistant component for high-pressure hydrogenWADA YORU·Filed 2008·Granted Aug 7, 2012·2 cites·7 claims
- 0457US10227682B2High-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics and method for producing the sameJAPAN STEEL WORKS LTD·Filed 2015·Granted Mar 12, 2019·0 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Ryoji Ishigaki files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →