Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RK

Risho Koh — 16 Patents

Nec: 13 patents #943 of 14,502Top 7%
RERenesas Electronics: 3 patents #1,322 of 4,529Top 30%
Tokyo, JP: #9,687 of 90,295 inventorsTop 15%
Overall (All Time): #284,196 of 4,157,543Top 7%
16 Patents All Time
Risho Koh has been granted 16 US patents while listed as an inventor at Nec. The first was granted in 1995 and the most recent in December 2019. Risho Koh ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list Risho Koh in Tokyo, JP.

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10496782 Element model and process design kit Mitsuru Miyamori, Katsumi Tsuneno 2019-12-03
9558967 Method of manufacturing semiconductor device Shinichi Uchida, Takafumi Kuramoto 2017-01-31
8633726 Semiconductor device evaluation apparatus and semiconductor device evaluation method Takahiro Iizuka 2014-01-21
7830703 Semiconductor device and manufacturing method thereof Koichi Takeda, Masahiro Nomura, Kiyoshi Takeuchi, Hitoshi Wakabayashi, Shigeharu Yamagami +3 more 2010-11-09
7719043 Semiconductor device with fin-type field effect transistor and manufacturing method thereof. Shigeharu Yamagami, Hitoshi Wakabayashi, Kiyoshi Takeuchi, Masahiro Nomura, Koichi Takeda +3 more 2010-05-18
7611934 Semiconductor device and method of fabricating the same Yukishige Saito, Jong-Wook Lee, Hisashi Takemura 2009-11-03
7485923 SOI semiconductor device with improved halo region and manufacturing method of the same Hisashi Takemura, Yukishige Saito, Jyonu Ri 2009-02-03
7211517 Semiconductor device and method that includes reverse tapering multiple layers Yukishige Saito, Jyonu Ri, Hisashi Takemura 2007-05-01 $40,000
6975001 Semiconductor device and method of fabricating the same Yukishige Saito, Jong-Wook Lee, Hisashi Takemura 2005-12-13 $36,000
6933569 SOI MOSFET Shigeharu Yamagami, Jong-Wook Lee, Hitoshi Wakabayashi, Yukishige Saito, Atsushi Ogura +6 more 2005-08-23 $22,000
6306691 Body driven SOI-MOS field effect transistor and method of forming the same 2001-10-23 $39,000
6049110 Body driven SOI-MOS field effect transistor 2000-04-11 $100,000
5770506 Method of fabricating a field effect transistor with short gate length 1998-06-23 $18,000
5668046 Method of producing a semiconductor on insulating substrate, and a method of forming transistor thereon Atsushi Ogura 1997-09-16 $15,000
5545586 Method of making a transistor having easily controllable impurity profile 1996-08-13 $20,000
5427976 Method of producing a semiconductor on insulating substrate, and a method of forming a transistor thereon Atsushi Ogura 1995-06-27 $24,000