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

Kazuo Ishihara

KC Kukdo Chemical Co.: 2 patents #1 of 7Top 15%
NC Nippon Steel Chemical: 2 patents #7 of 39Top 20%
Overall (2025): #111,237 of 469,880Top 25%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12378345 Polyfunctional vinyl resin and method for producing same, polyfunctional vinyl resin composition, cured article, prepreg, resin sheet, and laminated plate Masahiro Soh, Jaeman Han, Haerry Youn 2025-08-05
12378354 Active ester resin, method for producing thereof, epoxy resin composition, cured product thereof, prepreg, laminated board, and material for circuit substrate Masahiro Soh, Jin Soo Lee, Chan Ho Park, Joong Hwi Jee 2025-08-05