Masahide Tanaka

Rohm Co.: 73 patents #4 of 2,292Top 1%

NI Nl Giken Incorporated: 45 patents #1 of 2Top 50%

FC Finewell Co.: 28 patents #3 of 4Top 75%

NI Nikon: 13 patents #314 of 2,493Top 15%

MI Mitsui Petrochemical Industries: 13 patents #32 of 1,024Top 4%

Samsung: 4 patents #25,854 of 75,807Top 35%

MC Mitsui Chemicals: 4 patents #512 of 2,279Top 25%

SC Sumitomo Chemical: 4 patents #1,124 of 4,033Top 30%

UN Unknown: 3 patents #7,366 of 83,584Top 9%

GE: 3 patents #10,354 of 36,430Top 30%

MI Minolta: 2 patents #592 of 1,109Top 55%

NT Nikon Technologies: 2 patents #4 of 13Top 35%

SU Suncall: 1 patents #37 of 92Top 45%

TC Toppan Printing Co.: 1 patents #691 of 1,467Top 50%

T& Tsumura &: 1 patents #52 of 128Top 45%

SC Sumika Fine Chemicals Co.: 1 patents #39 of 59Top 70%

SH Shimadzu: 1 patents #1,152 of 2,007Top 60%

HI Hitachi: 1 patents #17,742 of 28,497Top 65%

Overall (All Time): #4,458 of 4,157,543Top 1%

176

Patents All Time

Issued Patents All Time

Showing 176–176 of 176 patents

Patent #	Title	Co-Inventors	Date
4193667	Zoom lens system capable of constant magnification photography	Mitsuo Yasukuni, Toshinobu Ogura, Takanobu Omaki	1980-03-18