AK

Atsushi Kawasumi

KT Kabushiki Kaisha Toshiba: 55 patents #288 of 21,451Top 2%
Kioxia: 14 patents #55 of 1,813Top 4%
SC Sanyo Electric Co.: 7 patents #794 of 6,347Top 15%
Toshiba Memory: 3 patents #621 of 1,971Top 35%
TC Toshiba America Electronic Components: 1 patents #23 of 77Top 30%
IBM: 1 patents #44,794 of 70,183Top 65%
📍 Yokohama, TX: #10 of 49 inventorsTop 25%
Overall (All Time): #22,579 of 4,157,543Top 1%
80
Patents All Time

Issued Patents All Time

Showing 51–75 of 80 patents

Patent #TitleCo-InventorsDate
7477560 Semiconductor integrated circuit device and trimming method of semiconductor integrated circuit device 2009-01-13
7471544 Method and apparatus for avoiding cell data destruction caused by SRAM cell instability Takaai Nakazato 2008-12-30
7218549 Memory cell with stability switch for stable read operation and improved write operation 2007-05-15
7206218 Stable memory cell with improved operation speed 2007-04-17
7173457 Silicon-on-insulator sense amplifier for memory cell 2007-02-06
7170312 Systems and methods for reducing timing variations by adjusting buffer drivability 2007-01-30
7071737 Systems and methods for controlling timing in a circuit Takaaki Nakazato 2006-07-04
7068552 Sense amplifier 2006-06-27
7034577 Variable timing circuit 2006-04-25
7009871 Stable memory cell 2006-03-07
6894556 Current mirror circuit and current source circuit 2005-05-17
6833736 Pulse generating circuit Takaaki Nakazato, Toru Asano, Osamu Takahashi, Sang Hoo Dhong 2004-12-21
6806753 Delay circuit and synchronous delay apparatus 2004-10-19
6750701 Current mirror circuit and current source circuit 2004-06-15
6687182 Semiconductor memory device 2004-02-03
6611011 Memory cell array divided into a plurality of subarrays arranged in matrix form Tomoaki Yabe 2003-08-26
6611446 Semiconductor memory with multistage local sense amplifier 2003-08-26
6584026 Semiconductor integrated circuit capable of adjusting input offset voltage 2003-06-24
6490214 Semiconductor memory device 2002-12-03
6466486 Buffer circuit, and semiconductor device and semiconductor memory device including same 2002-10-15
6424554 Semiconductor memory with multistage local sense amplifier 2002-07-23
6415007 Charge pump having two sub charge pumps which include a common charge/discharge terminal 2002-07-02
6388508 Current mirror circuit and current source circuit 2002-05-14
6366492 Semiconductor memory device capable of automatically controlling bit-line recovery operation 2002-04-02
6141258 Programmable impedance output buffer drivers, semiconductor devices and static random access memories provided with a progammable impedance output port 2000-10-31