KF

Koh Fujimura

Ricoh Company: 2 patents #192 of 1,125Top 20%
Overall (2022): #138,462 of 548,613Top 30%
2
Patents 2022

Issued Patents 2022

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11474408 Electronic device, method for producing electronic device, and photochromatic lens unit Yasuhiro Takahashi, Keiichiroh Yutani, Tohru Yashiro, Tomoo Fukuda, Kohji Takeuchi +2 more 2022-10-18
11237447 Electrochromic element Keiichiroh Yutani, Tomoo Fukuda, Hiroyuki Takahashi, Tohru Yashiro, Takaaki Konno +1 more 2022-02-01