Inventor
YOKOTA RIKIO
JP11 patents
⚠️ This page may combine multiple inventors who share the name “YOKOTA RIKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KANEKA CORP
6 patentsUS11492446B2Nov 8, 2022
Semipreg, prepreg, resin composite material, and production methods thereof
KANEKA CORP0 citations62
US12305003B2May 20, 2025
Polyamic acid having specific composition, varnish, cured product, and composite material
KANEKA CORP0 citations51
US10815390B2Oct 27, 2020
Polyimide resin composition and varnish produced from terminal-modified imide oligomer prepared using 2-phenyl-4,4′-diaminodiphenyl ether and thermoplastic aromatic polyimide prepared using oxydiphthalic acid, polyimide resin composition molded article and prepreg having excellent heat resistance and mechanical characteristic, and fiber-reinforced composite material thereof
KANEKA CORP0 citations50
US10017666B2Jul 10, 2018
Polyimide resin composition and varnish produced from terminal-modified imide oligomer prepared using 2-phenyl-4,4′-diaminodiphenyl ether and thermoplastic aromatic polyimide prepared using oxydiphthalic acid, polyimide resin composition molded article and prepreg having excellent heat resistance and mechanical characteristic, and fiber-reinforced composite material thereof
KANEKA CORP0 citations50
US10526450B2Jan 7, 2020
Terminally modified imide oligomer, varnish, cured products thereof, film, and imide prepreg and fiber-reinforced composite material using these
KANEKA CORP0 citations40
US10047246B2Aug 14, 2018
Varnish including 2-phenyl-4,4′-diaminodiphenyl ether, imide resin composition having excellent moldability, cured resin molded article having excellent breaking elongation, prepreg thereof, imide prepreg thereof, and fiber-reinforced material thereof having high heat resistance and excellent mechanical strength
KANEKA CORP0 citations39
UBE INDUSTRIES
2 patentsMIYAUCHI MASAHIKO
2 patentsUS8846552B2Sep 30, 2014
Soluble terminally modified imide oligomer using 2-phenyl-4, 4′-diaminodiphenyl ether, varnish, cured product thereof, imide prepreg thereof, and fiber-reinforced laminate having excellent heat resistance
MIYAUCHI MASAHIKO2 citations56
US9051430B2Jun 9, 2015
Resin-transfer-moldable terminal-modified imide oligomer using 2-phenyl-4,4′diaminodiphenyl ether and having excellent moldability, mixture thereof, varnish containing same, and cured resin thereof and fiber-reinforced cured resin thereof made by resin transfer molding and having excellent heat resistance
MIYAUCHI MASAHIKO0 citations35