Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Koji Kotani — 26 Patents

UNUnknown: 10 patents #823 of 83,584Top 1%
TLTokyo Electron Limited: 6 patents #1,241 of 5,567Top 25%
Honda Motor Co.: 5 patents #4,418 of 21,052Top 25%
ADAdvantest: 3 patents #330 of 1,193Top 30%
TOTadahiro Ohmi: 3 patents #8 of 65Top 15%
HCHitachi Industries Co.: 2 patents #1 of 49Top 3%
IAI.F. Associates: 2 patents #5 of 16Top 35%
TSTadashi Shibata: 2 patents #3 of 7Top 45%
HCHokushin Co.: 1 patents #11 of 54Top 25%
Hitachi: 1 patents #17,777 of 28,497Top 65%
Rifu, JP: #118 of 2,101 inventorsTop 6%
Overall (All Time): #150,017 of 4,157,543Top 4%
26 Patents All Time
Koji Kotani has been granted 26 US patents while listed as an inventor at Unknown. The first was granted in 1996 and the most recent in April 2021. Koji Kotani ranks #150,017 of 4,157,543 US inventors in our database (top 3.6%). Patent records list Koji Kotani in Rifu, JP.

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10968513 Plasma film-forming apparatus and substrate pedestal Masashi Imanaka, Toshio Nakanishi, Minoru Honda 2021-04-06
8551830 Semiconductor integrated circuit switch matrix Tadahiro Ohmi, Kazuyuki Maruo, Takahiro Yamaguchi 2013-10-08 $40,000
8545711 Processing method Toshihisa Nozawa, Kouji Tanaka 2013-10-01
8366869 Processing apparatus and processing method Toshihisa Nozawa, Kouji Tanaka 2013-02-05
8110044 Substrate processing apparatus and temperature control device Toshihisa Nozawa 2012-02-07
7667276 Semiconductor integrated circuit switch matrix Tadahiro Ohmi, Kazuyuki Maruo, Takahiro Yamaguchi 2010-02-23 $139,000
7566936 Complementary MIS device Tadahiro Ohmi, Shigetoshi Sugawa 2009-07-28
7507490 Metal separator for fuel cell and its production method Teruyuki Ohtani, Makoto Tsuji, Masao Utsunomiya 2009-03-24 $1,096,000
7436999 Data analysis device and data recognition device Tadahiro Ohmi, Feifei Lee 2008-10-14
7325432 Method for manufacturing fuel cell metallic separator Teruyuki Ohtani, Makoto Tsuji, Masao Utsunomiya 2008-02-05 $457,000
7296048 Semiconductor circuit for arithmetic processing and arithmetic processing method Tadahiro Ohmi, Makoto Imai, Toshiyuki Nozawa, Masanori Fujibayashi, Tadashi Shibata +1 more 2007-11-13
7210895 Turbo compressor and method of operating the turbo compressor Kazuo Takeda, Haruo Miura 2007-05-01 $181,000
7202534 Complementary MIS device Tadahiro Ohmi, Shigetoshi Sugawa 2007-04-10
7193434 Semiconductor integrated circuit Tadahiro Ohmi, Kazuyuki Maruo, Takahiro Yamaguchi 2007-03-20 $58,000
6793456 Turbo-compressor and capacity control method thereof Kazuo Takeda 2004-09-21 $197,000
6774335 Plasma reactor and gas modification method Takeshi Yanobe, Hideyuki Fujishiro, Kenji Dosaka, Minoru Torii, Kazuo Ando 2004-08-10 $582,000
6728745 Semiconductor circuit for arithmetic operation and method of arithmetic operation Tadahiro Ohmi, Makoto Imai, Toshiyuki Nozawa, Masanori Fujibayashi, Tadashi Shibata +1 more 2004-04-27
6150851 Charge transfer amplifier circuit, voltage comparator, and sense amplifier Tadahiro Ohmi, Takahisa Nitta 2000-11-21
6137673 Electric double-layar capacitor Kazuo Andou, Takeshi Taguchi, Toshiyuki Matsuoka, Tohru Ohta, Mitsuru Ikeo +1 more 2000-10-24 $225,000
6137053 Electric double-layer capacitor housing Kazuo Andou, Takeshi Taguchi, Hiroto Kobayashi, Toshiyuki Matsuoka 2000-10-24 $225,000
5959484 Feed back circuit Tadahiro Ohmi, Tadashi Shibata, Hiroaki Terada 1999-09-28
5937399 Semiconductor integrated circuit Tadahiro Ohmi, Tadashi Shibata 1999-08-10
5917742 Semiconductor arithmetic circuit Tadahiro Ohmi, Makoto Imai, Tadashi Shibata 1999-06-29
5682109 Semiconductor integrated circuit Tadahiro Ohmi, Tadashi Shibata 1997-10-28
5661421 Semiconductor integrated data matching circuit Tadahiro Ohmi, Tadashi Shibata 1997-08-26