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Yoshiki Yanagawa

Ricoh Company: 4 patents #257 of 2,036Top 15%
Overall (2016): #31,591 of 481,213Top 7%
4
Patents 2016

Issued Patents 2016

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9406887 Solution, organic semiconductor material, organic semiconductor film, electronic device and electronic equipment Ryota Arai 2016-08-02
9365513 Fullerene derivative, and method of preparing the same Ryota Arai 2016-06-14
9365670 Copolymer, aqueous ink, and ink cartridge Shigeyuki Harada, Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai, Yuusuke Koizuka +2 more 2016-06-14
9353274 Ink, ink cartridge, inkjet recording device, and copolymer Keita Katoh, Shigeyuki Harada, Masayuki Fukuoka, Kazukiyo Nagai, Tomoyuki Shimada +2 more 2016-05-31