Inventor

NAKAYAMA RYOJI

JP25 patents

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

NAKAYAMA RYOJI

MITSUBISHI MATERIALS CORP

Rare earth permanent magnet power, method for producing same and bonded magnet

Rare earth-iron-boron magnet powder and process of producing same

Method of manufacturing magnetically anisotropic R-T-B-M powder material and method of manufacturing anisotropic magnets using said powder material

Method for producing rare earth alloy magnet powder

Anisotropic rare earth-Fe-B system and rare earth-Fe-Co-B system magnet

Rare earth element-Fe-B or rare earth element-Fe-Co-B permanent magnet powder excellent in magnetic anisotropy and corrosion resistivity and bonded magnet manufactured therefrom

Method for manufacturing a rare earth magnetic powder having high magnetic anisotropy

Method for heat treating metallic materials and apparatus therefor

Apparatus for closed cycle hydrogenation recovery and rehydrogenation

Solid resin-coated magnet powder and a method for producing an anisotropic bonded magnet therefrom

Flat soft magnetic metal powder and composite magnetic material including the soft magnetic metal powder

Fe-Ni-Mo soft magnetic flaky powder and magnetic composite material containing soft magnetic powder

KANEKA CORP

Polypropylene based resin composition, expanded moldings comprising the same and method for production thereof

Polypropylene-type resin pre-expanded particles, and method for producing said pre-expanded particles

Expandable styrene resin particles, pre-expanded particles of styrene resin, styrene resin foam molded body, and method for producing expandable resin particles

WATANABE MUNEAKI

Iron powder coated with Mg-containing oxide film

Method for producing soft magnetic metal powder coated with Mg-containing oxide film

Iron powder coated with Mg-containing oxide film

MITSUBISHI METAL CORP

Rare earth-iron-boron magnet powder and process of producing same

Rare earth permanent magnet powder, method for producing same and bonded magnet

NISSAN MOTOR

Rare earth magnet powder and method of producing the same

Rare earth magnet having high strength and high electrical resistance

OKURA TETSUO

Polypropylene resin, polypropylene resin composition, and foam-injection-molded article

MORI KATSUHIKO

Rare earth magnet having high strength and high electrical resistance

MITSUBISHI MATERIALS PMG CORP

Composite soft magnetic sintered material having high density and high magnetic permeability and method for preparation thereof