HS

Hirofumi Sumi

SO Sony: 50 patents #465 of 25,231Top 2%
TSMC: 5 patents #4,208 of 12,232Top 35%
TC Tech Idea Co.: 1 patents #3 of 3Top 100%
Overall (All Time): #39,660 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 51–59 of 59 patents

Patent #TitleCo-InventorsDate
5686355 Method for forming film of refractory metal Chigusa Yamane 1997-11-11
5597739 MOS transistor and method for making the same Naoki Nagashima 1997-01-28
5428234 Semiconductor device 1995-06-27
5399526 Method of manufacturing semiconductor device by forming barrier metal layer between substrate and wiring layer 1995-03-21
5397744 Aluminum metallization method Yukiyasu Sugano 1995-03-14
5308793 Method for forming interconnector Mitsuru Taguchi 1994-05-03
5290731 Aluminum metallization method Yukiyasu Sugano, Shinji Minegishi, Kazuhide Koyama 1994-03-01
5254498 Method for forming barrier metal structure 1993-10-19
5194405 Method of manufacturing a semiconductor device having a silicide layer Toshiyuki Nishihara 1993-03-16