Inventor

ECHIGO YOSHIAKI

JP38 patents

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

ECHIGO YOSHIAKI

UNITIKA LTD

Polyimide precursor fibrid, polyimide paper, polyimide composite paper and polyimide composite board obtained therefrom, and process for producing the fibrid and the paper products

Poly(amic acid) solution and polyimide film or polymide-coated material obtained therefrom

Film forming solution, porous film obtained therefrom and coated material with the porous film

Composite sheet electrode

Carbonaceous material and a cell using the same

Spherical ion exchange resin having matrix-bound metal hydroxide, method for producing the same and method for adsorption treatment using the same

Method for purification of sulfuric acid solution

Process for treating waste water containing uranium and fluorine

Microspherical cured phenolic resin particles and process for production thereof using emulsion stabilizers

Fiber-reinforced porous plastic tube

Phenolic chelate resin, process for producing the same, and method of recovering heavy metal ions with the same

Phenolic chelate resin, process for producing the same, and method of recovering heavy metal ions with the same

Substrate for flexible printed wiring board and method for manufacturing the same

Production of microspheroidal particles of resole resins

Microspherical particles of resole resins and process for producing the same

Polyimide precursor solution, process for producing the solution and moldings and coatings obtained therefrom

Granular material of polyimide precursor, mixture comprising the material and process for producing the material

PTC element and process for producing the same

Polyimide precursor solution, coating film obtained therefrom, and process for producing polyimide coating film

Spherical particles of thermosetting phenolic resin and process for producing the same

Production of fiber reinforced composite

Polyimide precursor solution process for the production thereof coating or film obtained therefrom and process for producing the film

Bismaleimide modified product and method for producing the same

Bismaleimide modified product and method for producing the same

Production method of maleimide

Production method of maleimide

NASA

Hollow polymide microspheres

Films, preimpregnated tapes and composites made from polyimide “Salt-like” Solutions

Aromatic polyimide foam

Hollow polyimide microspheres

Hollow polyimide microspheres

Polyimide precursor solid residuum

RICOH KK

Electrode and method of producing the same

TODA KOGYO CORP

Composite carrier particles for electrophotography and process for producing the same

NIPPON KAYAKU KK

Method for preparing substrate for flexible print wiring board, and substrate for flexible print wiring board

BRIDGESTONE CORP

Rubber compositions for tires

DORYOKURO KAKUNENRYO

Process for separately recovering uranium and hydrofluoric acid from waste liquor containing uranium and fluorine

YOSHIDA TAKESHI

Polyimide resin composition, polyimide precursor resin composition for the same, production method thereof, and polyimide film and production method thereof