Inventor

YAMAKAWA AKIRA

JP100 patents

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

YAMAKAWA AKIRA

SUMITOMO ELECTRIC INDUSTRIES

Si3N4 ceramic, Si-base composition for production thereof and processes for producing these

Joint body of aluminum and silicon nitride and method of preparing the same

Slide member and method of manufacturing the same

Method of producing silicon nitride ceramic component

Ceramic circuit board and a method of manufacturing the ceramic circuit board

Ceramic porous bodies and method of producing the same

Composite bearing structure

Silicon nitride sintered body

Silicon nitride composite sintered body and process for producing the same

Silicon nitride sintered body and process for producing the same

Composite ceramic powder and production process thereof

Apparatus and method for measuring a physical property of a sample using an electron spin resonance spectrum of the sample

Method of machining silicon nitride ceramics and silicon nitride ceramics products

Composite bearing structure

Ceramic substrate and preparation of the same

Heat-conductive aluminum nitride sintered body and method of manufacturing the same

Heat-conductive aluminum nitride sintered body and method of manufacturing the same

Member for a semiconductor structure

Member for semiconductor apparatus

Silicon nitride composite sintered body and process for producing same

Connection structure between components for semiconductor apparatus

Silicon nitride sintered body and process for producing the same

Metallized silicon nitride ceramic and fabricating process thereof as well as metallizing composite for the process

Silicon nitride sinter having high thermal conductivity and process for preparing the same

Method of preparing silicon nitride porous body

Grind-machining method of ceramic materials

Silicon nitride sintered material for cutting tools and process for making the same

Thin film magnetic heads and substrates therefore

Silicon nitride sintered body, method of preparing the same and nitrided compact

Porous ceramic film and process for producing the same

High-strength porous silicon nitride body and process for producing the same

Ceramic sliding component

Ceramic porous bodies and method of producing the same

Sintered body of silicon nitride and method of producing the same

Manufacturing method for silicon nitride-based sintered body

Ceramic porous body and method for preparing the same

Silicon nitride based sintered body

Aluminum nitride sintered body and method of producing the same

Aluminum nitride sintered body and method of producing the same

Aluminum nitride powder having surface layer containing oxynitride

Method of producing sintered silicon nitrides

Aluminum nitride sintered body and method of preparing the same

Ceramic adjusting shim

Silicon nitride sintered body and process for producing the same

Formation of a ceramic composite by centrifugal casting

Silicon nitride sintered body and process for producing the same

Method of processing a circuit board

JAPAN ATOMIC ENERGY RES INST

Quadrupole electrode and process for producing the same

AGENCY IND SCIENCE TECHN

Silicon nitride ceramic and process for forming the same

SUMITOMO ELECTRIC IND LTD I

Method of sintering ceramics and metal dispersed reinforced ceramics obtained thereby