Yasuji Koshikawa

NE Nec: 2 patents #90 of 1,409Top 7%

NE Nec Electronics: 1 patents #54 of 322Top 20%

Overall (2003): #36,018 of 273,478Top 15%

Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6636448	Semiconductor memory device having fewer memory cell plates being activated in a test mode than in a normal mode	—	2003-10-21
6515921	Semiconductor storage device having redundancy circuit for replacement of defect cells under tests	—	2003-02-04