Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
TU

Tatsuya Usami

RERenesas Electronics: 48 patents #10 of 4,529Top 1%
NENec Electronics: 41 patents #3 of 1,789Top 1%
Nec: 35 patents #179 of 14,502Top 2%
Tokyo, MO: #16 of 223 inventorsTop 8%
Overall (All Time): #10,156 of 4,157,543Top 1%
119 Patents All Time

Issued Patents All Time

Showing 101–119 of 119 patents

Patent #TitleCo-InventorsDate
6319797 Process for manufacturing a semiconductor device 2001-11-20
6319844 Method of manufacturing semiconductor device with via holes reaching interconnect layers having different top-surface widths Hidenobu Miyamoto 2001-11-20
6294833 Semiconductor device and fabrication process thereof 2001-09-25
6255732 Semiconductor device and process for producing the same Takashi Yokoyama 2001-07-03
6225217 Method of manufacturing semiconductor device having multilayer wiring Hidemitsu Aoki, Yasuaki Tsuchiya, Shinya Yamasaki 2001-05-01
6222269 Semiconductor device and fabrication process thereof 2001-04-24
6194775 Semiconductor element with thermally nitrided film on high resistance film and method of manufacturing the same 2001-02-27
6187662 Semiconductor device with low permittivity interlayer insulating film and method of manufacturing the same Noriaki Oda 2001-02-13
6157083 Fluorine doping concentrations in a multi-structure semiconductor device Hiraku Ishikawa 2000-12-05
6140225 Method of manufacturing semiconductor device having multilayer wiring Hidemitsu Aoki, Yasuaki Tsuchiya, Shinya Yamasaki 2000-10-31
6133137 Semiconductor device and method of manufacturing the same 2000-10-17
6124213 Process of fabricating semiconductor device having ashing step for photo-resist mask in plasma produced from N.sub.x H.sub.y gas Kouichi Ohto, Yasuhiko Ueda 2000-09-26
6099747 Chamber etching of plasma processing apparatus 2000-08-08
6077574 Plasma CVD process for forming a fluorine-doped SiO.sub.2 dielectric film 2000-06-20
6005291 Semiconductor device and process for production thereof Kenichi Koyanagi, Kunihiro Fujii, Koji Kishimoto 1999-12-21
5939771 Semiconductor device having an organic resin layer and silicon oxide layer containing fluorine for preventing crosstalk between metal lines and a method of manufacturing the same Tetsuya Homma 1999-08-17
5863339 Chamber etching of plasma processing apparatus 1999-01-26
5751050 Semiconductor device having a polysilicon resistor element with increased stability and method of fabricating same Hiraku Ishikawa 1998-05-12
5503678 Vertical low pressure CVD apparatus with an adjustable nozzle 1996-04-02