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USPTO Patent Rankings Data through Sept 30, 2025
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Daisuke OYAMATSU — 4 Patents in 2021

Nichia: 4 patents #26 of 355Top 8%
OUOsaka University: 3 patents #4 of 281Top 2%
Tokushima, JP: #13 of 146 inventorsTop 9%
Overall (2021): #51,576 of 548,734Top 10%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11174429 Semiconductor nanoparticles and method of producing semiconductor nanoparticles Tsukasa Torimoto, Tatsuya Kameyama, Akihiro Fukatsu 2021-11-16
11162024 Semiconductor nanoparticles and method of producing semiconductor nanoparticles Susumu Kuwabata, Taro UEMATSU, Kazutaka Wajima, Tsukasa Torimoto, Tatsuya Kameyama +1 more 2021-11-02
11101413 Semiconductor nanoparticles, method of producing the semiconductor nanoparticles, and light-emitting device Tsukasa Torimoto, Tatsuya Kameyama, Marino KISHI, Chie MIYAMAE, Susumu Kuwabata +2 more 2021-08-24
10954439 Semiconductor nanoparticles, method of producing the semiconductor nanoparticles, and light-emitting device Tsukasa Torimoto, Tatsuya Kameyama, Hiroki Yamauchi, Chie MIYAMAE, Yuki Mori +2 more 2021-03-23