YK

Yasuji Koshikawa

NE Nec: 41 patents #129 of 14,502Top 1%
EM Elpida Memory: 20 patents #22 of 692Top 4%
PM Powerchip Semiconductor Manufacturing: 2 patents #40 of 193Top 25%
NE Nec Electronics: 1 patents #715 of 1,789Top 40%
Overall (All Time): #35,887 of 4,157,543Top 1%
63
Patents All Time

Issued Patents All Time

Showing 26–50 of 63 patents

Patent #TitleCo-InventorsDate
6452844 Semiconductor storage device having redundancy circuit for replacement of defect cells under tests 2002-09-17
6414887 Semiconductor memory device 2002-07-02
6385095 Semiconductor memory device 2002-05-07
6385104 Semiconductor memory device having a test mode decision circuit 2002-05-07
6353573 Clock synchronization semiconductor memory device 2002-03-05
6330198 Semiconductor storage device 2001-12-11
6272057 Semiconductor memory device 2001-08-07
6175534 Synchronous semiconductor storage device Junya Taniguchi, Kouji Mine 2001-01-16
6154080 Semiconductor memory device with plural trigger circuits for data output 2000-11-28
6128247 Semiconductor memory device for making column decoder operable according to RAS access time 2000-10-03
6122207 Semiconductor memory device and method for relieving defective memory cells Tomoko Nobutoki, Kouji Mine 2000-09-19
6104224 Delay circuit device having a reduced current consumption 2000-08-15
6094387 Roll call tester Kouji Mine, Tomoko Nobutoki 2000-07-25
6061294 Synchronous semiconductor memory device and method of controlling sensing process of synchronous dynamic RAM 2000-05-09
6023433 Semiconductor memory device with a redundant decoder having a small scale in circuitry 2000-02-08
6014341 Synchronous-type semiconductor storage 2000-01-11
5991231 Semiconductor memory device 1999-11-23
5901097 Read bus controlling apparatus for semiconductor storage device 1999-05-04
5881019 Synchronous semiconductor memory device capable of improving load of clock signal line 1999-03-09
5867447 Synchronous semiconductor memory having a write execution time dependent upon a cycle time 1999-02-02
5822254 Synchronous semiconductor memory device Hisashi Abo 1998-10-13
5781499 Semiconductor memory device 1998-07-14
5708614 Data output control circuit of semiconductor memory device having pipeline structure 1998-01-13
5579267 Semiconductor pipeline memory device eliminating time loss due to difference between pipeline stages from data access 1996-11-26
5539693 Method of controlling semiconductor storage circuit Yasuhiro Takai 1996-07-23