Keiichiroh Yutani

4 Patents

• US117748262023

  Electrochromic Element and Electrochromic Light Control Device

  RICOH COMPANY, Ltd.

  0 cites
• US117549012023

  Electrochromic Device, Wearable Device, and Method for Driving Electrochromic Device

  RICOH COMPANY, Ltd.

  0 cites
• US116811962023

  Electrochromic Device, Control Device of Electrochromic Device, and Control Method of Electrochromic Device

  RICOH COMPANY, Ltd.

  0 cites
• US116303652023

  Electrochromic Element and Production Method Thereof, Electrochromic Light-adjusting Element, Electrochromic Light-adjusting Lens, and Electrochromic Device

  RICOH COMPANY, Ltd.

  0 cites