Partial year: Data through Q3 2025 (Sept 30). Full-year totals not yet available.
HM

Hiroshi Matsunaga

MC Mitsubishi Gas Chemical Company: 2 patents #13 of 109Top 15%
📍 Yokkaichi, JP: #41 of 297 inventorsTop 15%
Overall (2025): #122,159 of 469,880Top 30%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12351922 Roughening treatment method for stainless steel surface, method for manufacturing roughened stainless steel, and aqueous composition used in said methods Kazuhiko Ikeda, Tomoko Fujii 2025-07-08
12308249 Etching liquid for titanium and/or titanium alloy, method for etching titanium and/or titanium alloy with use of said etching liquid, and method for producing substrate with use of said etching liquid Yukihide NAITO, Satoshi Tamai 2025-05-20