Inventor
MATSUYAMA AKIHIKO
JP61 patents
⚠️ This page may combine multiple inventors who share the name “MATSUYAMA AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH CO LTD
13 patentsUS7919544B2Apr 5, 2011
Ink-media set, ink composition, ink cartridge, inkjet recording method, inkjet recording apparatus, and ink recorded matter
RICOH CO LTD80 citations98
US7977408B2Jul 12, 2011
Recording ink, ink set, ink cartridge, ink record, inkjet recording apparatus and inkjet recording method
RICOH CO LTD42 citations92
US9359522B2Jun 7, 2016
Ink composition, ink cartridge, inkjet recording device, and inkjet printed matter
RICOH CO LTD9 citations84
US11274221B2Mar 15, 2022
Ink, ink set, ink container, image forming method, image forming apparatus and recorded matter
RICOH CO LTD2 citations70
US11499062B2Nov 15, 2022
Ink, ink set, ink container, image forming method, and image forming apparatus
RICOH CO LTD0 citations52
US10844235B2Nov 24, 2020
Ink, method of manufacturing ink, and ink cartridge
RICOH CO LTD0 citations52
US9850335B2Dec 26, 2017
Copolymer, aqueous ink, and ink cartridge
RICOH CO LTD0 citations52
US9315684B2Apr 19, 2016
Ink composition, inkjet recording method, and printed matter
RICOH CO LTD0 citations52
US9267046B2Feb 23, 2016
Inkjet ink, ink cartridge, inkjet recording device, and inkjet printed matter
RICOH CO LTD0 citations52
US9150745B2Oct 6, 2015
Inkjet ink, ink cartridge, inkjet recording device, and inkjet printed matter
RICOH CO LTD0 citations52
US9102841B2Aug 11, 2015
Yellow ink composition for inkjet recording, and inkjet recording method and inkjet recorded material
RICOH CO LTD1 citations52
US9056993B2Jun 16, 2015
Ink composition, inkjet recording method, and printed matter
RICOH CO LTD1 citations52
US8383700B2Feb 26, 2013
Pigment dispersion, recording ink, ink cartridge, ink-jet recording method and ink-jet recording apparatus
RICOH CO LTD1 citations52
MATSUYAMA AKIHIKO
9 patentsUS8945294B2Feb 3, 2015
Ink composition for inkjet recording, inkjet recording method, and inkjet recorded material
MATSUYAMA AKIHIKO8 citations84
US8746869B2Jun 10, 2014
Ink for inkjet recording, inkjet recording method using the same, ink cartridge housing the same, and recorded matter
MATSUYAMA AKIHIKO11 citations83
US9034091B2May 19, 2015
Inkjet recording ink set, inkjet recording method, and recorded matter
MATSUYAMA AKIHIKO6 citations73
US8778071B2Jul 15, 2014
Inkjet ink set, image forming method using same, and print formed by the image forming method
MATSUYAMA AKIHIKO3 citations62
US8651650B2Feb 18, 2014
Inkjet recording ink, inkjet recording inkset, ink cartridge, inkjet recording method, and recorded matter
MATSUYAMA AKIHIKO3 citations61
US11059983B2Jul 13, 2021
Ink, ink container, inkjet recording device, and recording method
MATSUYAMA AKIHIKO0 citations60
US10280321B2May 7, 2019
Ink, ink container, inkjet recording device, and recorded matter
MATSUYAMA AKIHIKO0 citations51
US9988543B2Jun 5, 2018
Ink, ink stored container, inkjet recording apparatus, and recorded matter
MATSUYAMA AKIHIKO0 citations51
US8523992B2Sep 3, 2013
Magenta recording ink composition, inkjet recording method, and ink recorded matter
MATSUYAMA AKIHIKO0 citations51
RICOH KK
7 patentsUS6641964B2Nov 4, 2003
Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor
RICOH KK80 citations98
US6790572B2Sep 14, 2004
Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptor
RICOH KK52 citations96
US6858362B2Feb 22, 2005
Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptor
RICOH KK24 citations93
US6844124B2Jan 18, 2005
Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor
RICOH KK31 citations92
US7060404B2Jun 13, 2006
Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptor
RICOH KK8 citations74
US7282529B2Oct 16, 2007
Coating liquid for an electrographic photoreceptor and a method of preparation using a ball mill
RICOH KK2 citations63
US7127196B2Oct 24, 2006
Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptor
RICOH KK4 citations63
KATOH KEITA
6 patentsUS9234110B2Jan 12, 2016
Ink for inkjet recording, and ink cartridge, inkjet recording method, inkjet recorder, ink-recorded matter and method of producing the ink-recorded matter using the ink
KATOH KEITA14 citations83
US8960885B2Feb 24, 2015
Ink for inkjet recording, and ink cartridge, inkjet recording method, inkjet recorder, ink-recorded matter and method of producing the ink-recorded matter using the ink
KATOH KEITA7 citations83
US10113078B2Oct 30, 2018
Ink discharge device and ink discharge method
KATOH KEITA2 citations72
US9441129B2Sep 13, 2016
Ink for inkjet recording, ink container, and inkjet recording device
KATOH KEITA6 citations72
US9321926B2Apr 26, 2016
Ink for inkjet recording, ink cartridge, and ink-recorded matter
KATOH KEITA0 citations51
US9217091B2Dec 22, 2015
Inkjet recording ink and ink cartridge using the ink, inkjet recording apparatus, inkjet recording method and ink recorded matter
KATOH KEITA0 citations51
GOTO HIROSHI
2 patentsNARUSE MITSURU
2 patentsNAMBA MICHIHIKO
2 patentsUS8252207B2Aug 28, 2012
Ink for inkjet recording, ink set for inkjet recording, ink media set for inkjet recording, ink cartridge, inkjet recording method, and inkjet recording apparatus
NAMBA MICHIHIKO10 citations83
US8580159B2Nov 12, 2013
Ink for inkjet recording, ink set for inkjet recording, ink media set for inkjet recording, ink cartridge, inkjet recording method, and inkjet recording apparatus
NAMBA MICHIHIKO2 citations62
TAMAI TAKASHI
2 patentsUS8752948B2Jun 17, 2014
Inkjet recording ink containing fluorine based surfactant, inkjet recording ink set, and inkjet recording apparatus containing the inkjet recording ink
TAMAI TAKASHI3 citations62
US8727523B2May 20, 2014
Inkjet recording ink, ink cartridge and inkjet recording method
TAMAI TAKASHI3 citations62
HARADA SHIGEYUKI
2 patentsNAGAI KAZUKIYO
1 patentARUGA TAMOTSU
1 patentFUKUOKA MASAYUKI
1 patentKOIZUKA YUUSUKE
1 patentHATADA SHIGEO
1 patentShowing the top 50 of 61 patents by PatentIndex Score.