Inventor
ARAI RYOTA
JP25 patents
⚠️ This page may combine multiple inventors who share the name “ARAI RYOTA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ARAI RYOTA
9 patentsUS9378899B2Jun 28, 2016
Photoelectric conversion element
ARAI RYOTA6 citations72
US9373450B2Jun 21, 2016
Photoelectric conversion element
ARAI RYOTA6 citations72
US9406887B2Aug 2, 2016
Solution, organic semiconductor material, organic semiconductor film, electronic device and electronic equipment
ARAI RYOTA2 citations62
US8889324B2Nov 18, 2014
Image bearing member, image forming method, image forming apparatus, and process cartridge
ARAI RYOTA2 citations62
US9246110B2Jan 26, 2016
Organic material and photoelectric conversion element
ARAI RYOTA2 citations59
US9590187B2Mar 7, 2017
Substituent-eliminable diketopyrrolopyrrole derivative, organic semiconductor material precursor solution, organic semiconductor material, and organic semiconductor material film
ARAI RYOTA1 citations51
US8809543B2Aug 19, 2014
Electrophotographic photoreceptor, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge for electrophotographic image forming apparatus
ARAI RYOTA0 citations51
US10062854B2Aug 28, 2018
Organic material and photoelectric conversion element
ARAI RYOTA1 citations44
US8586270B2Nov 19, 2013
Electrophotographic photoconductor, electrophotographic method, and electrophotographic apparatus
ARAI RYOTA0 citations40
RICOH CO LTD
7 patentsUS10727001B2Jul 28, 2020
Photoelectric conversion element
RICOH CO LTD3 citations72
US10651390B2May 12, 2020
Tertiary amine compound, photoelectric conversion element, and solar cell
RICOH CO LTD2 citations71
US11069485B2Jul 20, 2021
Photoelectric conversion element
RICOH CO LTD0 citations62
US11950503B2Apr 2, 2024
Organic material and photoelectric conversion element
RICOH CO LTD0 citations58
US10629826B2Apr 21, 2020
Organic compound and photoelectric conversion element
RICOH CO LTD1 citations58
US12041797B2Jul 16, 2024
Photoelectric conversion element, device, and power supply module
RICOH CO LTD0 citations51
US10686134B2Jun 16, 2020
Photoelectric conversion element
RICOH CO LTD0 citations39
SHIMADA TOMOYUKI
3 patentsUS8304153B2Nov 6, 2012
Electrophotographic photoreceptor, electrophotographic image forming method, electrophotographic image forming apparatus, electrophotographic process cartridge
SHIMADA TOMOYUKI3 citations61
US9005856B2Apr 14, 2015
Hydroxygallium porphyrazine derivative mixture and electrophotographic photoconductor
SHIMADA TOMOYUKI0 citations51
US9040215B2May 26, 2015
Amine compound, electrophotographic photoconductor, image forming method, image forming apparatus, and process cartridge
SHIMADA TOMOYUKI0 citations40