KY

Keiichiroh Yutani

Ricoh Company: 2 patents #300 of 1,584Top 20%
Overall (2019): #150,381 of 560,194Top 30%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10495937 Electrochromic device and production method thereof Tohru Yashiro, Sukchan Kim, Satoshi Yamamoto, Takahiko Matsumoto, Fuminari Kaneko +2 more 2019-12-03
10281793 Electrochromic dimming device and electrochromic driving device Atsushi Ohshima, Shigenobu Hirano, Takahiko Matsumoto, Hidekazu Yaginuma, Kazuaki Tsuji +6 more 2019-05-07