Inventor

OKAWA YUICHI

JP23 patents

⚠️ This page may combine multiple inventors who share the name “OKAWA YUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OKAWA YUICHI

MITSUI TOATSU CHEMICALS

Polyimide

Polyimide and preparation process of same

Polyimide

Polyimide composition

Readily soluble, amorphous polyimide, and preparation process of same

Polyimide and process for the preparation thereof

Favorably processable polyimide and process for preparing polyimide

Polyimide resin composition having excellent fatigue resistance and injection molded article of same

Polyimide resin composition

Polyimide

Aromatic diamine intermediates useful in the preparation of polyimides

MITSUI CHEMICALS INC

Hydrogenated ring-opening metathesis polymer and process for producing the same

Polyimide containing crosslinkable group and process for producing the same

Crystalline polyimide for melt molding with satisfactory thermal stability

Crosslinkable aromatic resin having protonic acid group, and ion conductive polymer membrane, binder and fuel cell using the resin

Liquid crystal polyamide-imide copolymer

Hydrogenated ring-opening metathesis polymer, resist composition comprising the same and patterning method

SUNAGA TADAHIRO

Method for purifying polymer and polymer

Ring-opening metathesis polymer, hydrogenated product thereof, method for preparing the same, and use thereof

OCHIAI TAKASHI

Process for producing organic transition metal complex compound, metathesis catalyst produced by using the same, ring-opening metathesis polymer obtainable with the metathesis catalyst, and process for producing the polymer

STANLEY ELECTRIC CO LTD

Interior lamp

SHINETSU CHEMICAL CO

Hydrogenated ring-opening metathesis polymer, resist composition and patterning process

WATANABE TAKERU

Polymer, polymer preparation method, resist composition and patterning process