Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Koichi Ohto — 31 Patents

NENec Electronics: 20 patents #11 of 1,789Top 1%
RERenesas Electronics: 9 patents #397 of 4,529Top 9%
Nec: 5 patents #2,841 of 14,502Top 20%
Tokyo, JP: #4,270 of 90,295 inventorsTop 5%
Overall (All Time): #115,823 of 4,157,543Top 3%
31 Patents All Time
Koichi Ohto has been granted 31 US patents while listed as an inventor at Nec Electronics. The first was granted in 2002 and the most recent in June 2014. Koichi Ohto ranks #115,823 of 4,157,543 US inventors in our database (top 2.8%). Patent records list Koichi Ohto in Tokyo, JP.

Issued Patents All Time

Showing 1–25 of 31 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8749058 Semiconductor device and manufacturing method thereof Tatsuya Usami, Hideaki Tsuchiya, Yukio Miura, Tomoyuki Nakamura, Chikako Ohto +1 more 2014-06-10
8642467 Semiconductor device having silicon-diffused metal wiring layer and its manufacturing method Toshiyuki Takewaki, Tatsuya Usami, Nobuyuki Yamanishi 2014-02-04
8486836 Semiconductor device and method of manufacturing the same Daisuke Oshida, Toshiyuki Takewaki, Takuji Onuma 2013-07-16
8435828 Method of manufacturing semiconductor device Hironori Yamamoto, Yoshihiro Hayashi, Jun Kawahara, Tatsuya Usami 2013-05-07
8115318 Semiconductor device having silicon-diffused metal wiring layer and its manufacturing method Toshiyuki Takewaki, Tatsuya Usami, Nobuyuki Yamanishi 2012-02-14
8030737 Semiconductor device and method of manufacturing the same Daisuke Oshida, Toshiyuki Takewaki, Takuji Onuma 2011-10-04
7910474 Method of manufacturing a semiconductor device Tatsuya Usami, Noboru Morita, Kazuhiko Endo 2011-03-22
7897475 Semiconductor device having projection on lower electrode and method for forming the same Daisuke Oshida, Toshiyuki Takewaki, Takuji Onuma 2011-03-01
7842602 Semiconductor device having silicon-diffused metal wiring layer and its manufacturing method Toshiyuki Takewaki, Tatsuya Usami, Nobuyuki Yamanishi 2010-11-30
7833901 Method for manufacturing a semiconductor device having a multi-layered insulating structure of SiOCH layers and an SiO2 layer Tatsuya Usami, Noboru Morita, Sadayuki Ohnishi, Koji Arita, Ryohei Kitao +1 more 2010-11-16
7763979 Organic insulating film, manufacturing method thereof, semiconductor device using such organic insulating film and manufacturing method thereof Tatsuya Usami, Noboru Morita, Kazuhiko Endo 2010-07-27
7745937 Semiconductor device and method of manufacturing the same Tatsuya Usami, Toshiyuki Takewaki 2010-06-29
7737555 Semiconductor method having silicon-diffused metal wiring layer Toshiyuki Takewaki, Tatsuya Usami, Nobuyuki Yamanishi 2010-06-15
7687917 Single damascene structure semiconductor device having silicon-diffused metal wiring layer Toshiyuki Takewaki, Tatsuya Usami, Nobuyuki Yamanishi 2010-03-30
7649258 Semiconductor device Tatsuya Usami 2010-01-19
7615498 Method of manufacturing a semiconductor device Yoichi Sasaki, Noboru Morita, Tatsuya Usami, Hidenobu Miyamoto 2009-11-10
7563705 Manufacturing method of semiconductor device Takashi TONEGAWA, Koji Arita, Tatsuya Usami, Noboru Morita, Yoichi Sasaki +2 more 2009-07-21
7564132 Semiconductor chip Tatsuya Usami 2009-07-21
7557447 Semiconductor device and method for manufacturing same Tatsuya Usami 2009-07-07
7531891 Semiconductor device Tatsuya Usami, Yoichi Sasaki 2009-05-12
7473630 Semiconductor device and method for manufacturing same Tatsuya Usami, Noboru Morita 2009-01-06
7391115 Semiconductor device and manufacturing method thereof Tatsuya Usami, Noboru Morita, Kazuhiko Endo 2008-06-24
7268087 Manufacturing method of semiconductor device Hidemitsu Aoki, Hiroaki Tomimori, Norio Okada, Tatsuya Usami, Takamasa Tanikuni 2007-09-11 $30,000
7180191 Semiconductor device and method of manufacturing a semiconductor device Yoichi Sasaki, Noboru Morita, Tatsuya Usami, Hidenobu Miyamoto 2007-02-20 $20,000
7135776 Semiconductor device and method for manufacturing same Tatsuya Usami, Noboru Morita 2006-11-14 $15,000