KY

Keiichiroh Yutani

Ricoh Company: 3 patents #82 of 1,125Top 8%
Overall (2022): #73,441 of 548,613Top 15%
3
Patents 2022

Issued Patents 2022

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11474408 Electronic device, method for producing electronic device, and photochromatic lens unit Yasuhiro Takahashi, Tohru Yashiro, Tomoo Fukuda, Kohji Takeuchi, Tohru Hasegawa +2 more 2022-10-18
11237447 Electrochromic element Tomoo Fukuda, Hiroyuki Takahashi, Koh Fujimura, Tohru Yashiro, Takaaki Konno +1 more 2022-02-01
11221533 Electrochromic device Kohji Takeuchi, Tohru Yashiro, Takahiko Matsumoto, Sukchan Kim, Shun GOTO +2 more 2022-01-11