Naoto Hirosaki

NS National Institute For Materials Science: 85 patents #1 of 901Top 1%

MC Mitsubishi Chemical: 16 patents #37 of 3,022Top 2%

Sharp Kabushiki Kaisha: 9 patents #1,853 of 10,731Top 20%

FU Fujikura: 8 patents #136 of 1,407Top 10%

Nissan Motor Co.: 7 patents #1,071 of 8,689Top 15%

Nichia: 6 patents #327 of 1,531Top 25%

DL Denka Company Limited: 5 patents #52 of 434Top 15%

CC Citizen Electronics Co.: 4 patents #74 of 252Top 30%

NM National Institute For Research In Inorganic Materials: 4 patents #11 of 111Top 10%

SK Showa Denko K.K.: 2 patents #639 of 1,736Top 40%

DK Denki Kagaku Kogyo: 2 patents #165 of 655Top 30%

FU Futaba: 1 patents #137 of 292Top 50%

NS National Institute Of Material Science: 1 patents #1 of 23Top 5%

SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%

PC Phoenix Electric Co.: 1 patents #17 of 34Top 50%

NT National Institute Of Advanced Industrial Science And Technology: 1 patents #1,256 of 3,134Top 45%

📍 Ibaraki, JP: #15 of 6,779 inventorsTop 1%

Overall (All Time): #13,657 of 4,157,543Top 1%

103

Patents All Time

Issued Patents All Time

Showing 101–103 of 103 patents

Patent #	Title	Co-Inventors	Date
5198165	Sintered silicon carbide and sialon composite	Yoshio Akimune	1993-03-30
5126294	Sintered silicon nitride and production method thereof	Akira Okada	1992-06-30
4810678	Gas pressure sintering of silicon nitride with addition of rare earth oxides	Akira Okada	1989-03-07