P

Inventor

WATANABE MASAKAZU

US65 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE MASAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NGK SPARK PLUG CO

31 patents
US4626392ADec 2, 1986

Process for producing ceramic body for surgical implantation

NGK SPARK PLUG CO77 citations96
US5705271AJan 6, 1998

Method for producing diamond coated member

NGK SPARK PLUG CO24 citations92
US5045513ASep 3, 1991

Sintered body of silicon nitride and its manufacture

NGK SPARK PLUG CO23 citations92
US4946807AAug 7, 1990

Composite ceramic material reinforced with silicon carbide whiskers

NGK SPARK PLUG CO24 citations92
US4748138AMay 31, 1988

Highly toughened, sintered mass of zirconia

NGK SPARK PLUG CO45 citations92
US4701426AOct 20, 1987

Silicon carbide-graphite composite material

NGK SPARK PLUG CO31 citations92
US4695517ASep 22, 1987

Composite layer aluminum nitride base sintered body

NGK SPARK PLUG CO26 citations92
US4690909ASep 1, 1987

Silicon carbide-graphite composite material and process for producing same

NGK SPARK PLUG CO30 citations92
US4668452AMay 26, 1987

Process for producing silicon carbide heating elements

NGK SPARK PLUG CO33 citations92
US4626517ADec 2, 1986

High toughness sintered bodies

NGK SPARK PLUG CO29 citations92
US5725932AMar 10, 1998

Ceramic-based substrate for coating diamond and method for preparing substrate for coating

NGK SPARK PLUG CO15 citations82
US4626518ADec 2, 1986

Method for manufacturing high toughness sintered bodies

NGK SPARK PLUG CO22 citations82
US4336216AJun 22, 1982

Process for producing silicon carbide heating elements

NGK SPARK PLUG CO21 citations82
US4877760AOct 31, 1989

Aluminum nitride sintered body with high thermal conductivity and process for producing same

NGK SPARK PLUG CO20 citations81
US4800137AJan 24, 1989

Composite layer aluminum nitride base sintered body

NGK SPARK PLUG CO23 citations81
US5626908AMay 6, 1997

Method for producing silicon nitride based member coated with film of diamond

NGK SPARK PLUG CO17 citations74
US4956317ASep 11, 1990

Whisker-reinforced ceramics

NGK SPARK PLUG CO11 citations74
US4638268AJan 20, 1987

Microwave absorber comprised of a dense silicon carbide body which is water cooled

NGK SPARK PLUG CO15 citations74
US5863606AJan 26, 1999

Method for producing diamond coated member

NGK SPARK PLUG CO11 citations73
US5858480AJan 12, 1999

Ceramic-based substrate for coating diamond and method for preparing substrate for coating

NGK SPARK PLUG CO13 citations73
US5334453AAug 2, 1994

Diamond-coated bodies and process for preparation thereof

NGK SPARK PLUG CO9 citations73
US5114888AMay 19, 1992

Silicon nitride sintered body and method for producing same

NGK SPARK PLUG CO14 citations73
US5049531ASep 17, 1991

Silicon nitride sintered body

NGK SPARK PLUG CO10 citations73
US5032554AJul 16, 1991

Sintered silicon nitride products

NGK SPARK PLUG CO6 citations73
US4997798AMar 5, 1991

Process for producing aluminum nitride sintered body with high thermal conductivity

NGK SPARK PLUG CO12 citations73
US4961987AOct 9, 1990

Aluminum nitride sintered body with high thermal conductivity and process for producing same

NGK SPARK PLUG CO10 citations73
US4375517AMar 1, 1983

Sintered cubic boron nitride and process for producing the same

NGK SPARK PLUG CO17 citations73
US5439854AAug 8, 1995

TiC-base/SiC whisker composite ceramic cutting tools

NGK SPARK PLUG CO9 citations72
US5122486AJun 16, 1992

Method of producing silicon-nitride-based sintered body

NGK SPARK PLUG CO7 citations71
US5026601AJun 25, 1991

Zirconia-base sintered bodies having coating films

NGK SPARK PLUG CO12 citations71
US5128285AJul 7, 1992

Silicon oxynitride sintered body

NGK SPARK PLUG CO4 citations63

NIPPON PAINT CO LTD

6 patents

DENSO CORP

3 patents

IDEMITSU PETROCHEMICAL CO

2 patents

SUMITOMO ELECTRIC INDUSTRIES

2 patents

ROLAND CORP

2 patents

FUJITSU LTD

1 patent

FUNAI ELECTRIC CO

1 patent

YOSHIDA KAZUHIRO

1 patent

SEMICONDUCTOR COMPONENTS IND LLC

1 patent

Showing the top 50 of 65 patents by PatentIndex Score.