Inventor

HIRAI TOSHIO

JP42 patents

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

HIRAI TOSHIO

RES INST IRON STEEL

Super hard-highly pure silicon nitrides having a preferred crystal face orientation

Super hard highly pure silicon nitrides and a process and apparatus for producing the same

Super hard-highly pure silicon nitrides

Super hard highly pure silicon nitrides

Process for producing super hard-highly pure silicon nitrides

Super hard-highly pure silicon nitrides, and a process and apparatus for producing the same

Super hard-highly pure silicon nitrides, and a process and apparatus for producing the same

ALPS ELECTRIC CO LTD

Crystalline sialon having wurtzite structure

Optical multilayered-film filter

Synthesis method by plasma chemical vapor deposition

Forming die manufacturing method

Method for producing multilayered optical filters using a genetic algorithm and a method for operating the genetic algorithm

KOBE STEEL LTD

Compression device having connection unit for cooling unit

Compressor with valve pressing portions for sealing

Compressing device

Reciprocating compressor

HIRAI TOSHIO

Titanium-containing silicon nitride film bodies and a method of producing the same

Electrically conductive Si3 N4 -C series amorphous material and a method of producing the same

Electrically conductive Si3 N4 --C series amorphous material and a method of processing the same

JAPAN RES DEV CORP

Polycrystalline rhombohedral boron nitride and method of producing the same

Membrane for use in X-ray mask and method for preparing the same

Transparent BN-type ceramic material and method of producing the same

NIPPON OIL CO LTD

Process for producing carbon/carbon composite having oxidation resistance

Process for preparing carbon material

(unassigned)

Rare earth oxide-alumina-silica sintered body and method of producing the same

Mixed oxide composite ceramics and method of producing the same

RIKEN KK

High strength and high hardness alumina-zirconia-silicon carbide sintered ceramic composite and its manufacturing process

Method of manufacturing josephson junctions

SUMITOMO METAL MINING CO

Zirconia film and process for preparing it

Chemical vapor deposition of dense and transparent zirconia films

FANUC LTD

EDM with an electrode moved by deformation of an electrode actuator

Wire cut electric discharge machine

NAT AEROSPACE LAB

Method of producing a functionally gradient material

RESEARCH DEV CORP

Boron nitride containing titanium nitride, method of producing the same and composite ceramics produced therefrom

HITACHI LTD

Scroll type compressor and refrigeration cycle using the same

ARCADIA INC

Device and method for synthesizing speech

JP NAT INST FOR FUSION SCIENCE

Sintering furnace, method of manufacturing sintered objects, and sintered objects

OMORI MAMORU

Method for preparing eutectic ceramics

TOHO GAS KK

Method for replacement of existing pipes and device for carrying out the method

NIIHARA KOICHI

Si3 N4 -A12 O3 composite sintered bodies and method of producing the same

HITACHI SHIPBUILDING ENG CO

Plasma melting method and plasma melting furnace

FANUC CORP

Life determination device, life determination method, and recording medium for cutting tool