AG

Akihiko Gotoh

Ricoh Company: 49 patents #237 of 9,818Top 3%
Overall (All Time): #56,497 of 4,157,543Top 2%
49
Patents All Time

Issued Patents All Time

Showing 1–25 of 49 patents

Patent #TitleCo-InventorsDate
11007806 Method for coating inks, method for producing wallpaper, image forming set, image forming system, ink, and ink set Tatsuya Morita, Yoshihiro Moriya 2021-05-18
10487455 Ink application method and method for producing wallpaper Yoshihiro Moriya 2019-11-26
9879207 Cleaning filling liquid, cartridge, cleaning filling method, and inkjet recording device Takashi Tamai, Tomohiro Inoue, Hiroshi Gotou, Michihiko Namba, Kiyofumi Nagai 2018-01-30
9789720 Image forming method, image forming apparatus, and recorded matter Shosuke Aoai, Tsutomu Maekawa, Michihiko Namba, Shinya Seno, Hiroshi Gotou 2017-10-17
9783700 Overcoating liquid, ink set, image forming method, and image forming apparatus Takashi Tamai, Michihiko Namba 2017-10-10
9487666 Inkjet recording ink, ink cartridge, inkjet recording method, and inkjet recording apparatus Takashi Tamai, Michihiko Namba 2016-11-08
9259935 Inkjet recorder ink flow channel cleaning liquid Takashi Tamai, Michihiko Namba 2016-02-16
9169407 Ink for inkjet recording, inkjet recording method using the ink, and ink cartridge that accommodates the ink Yuuki Yokohama, Mariko Kojima 2015-10-27
9028600 Inkjet ink, inkjet recording method, and inkjet recording device Hiroshi Goto, Kiyofumi Nagai, Yuuki Yokohama, Hidetoshi Fujii 2015-05-12
8956451 Ink set and inkjet recording method Keita Katoh, Masaki Kudo, Tomohiro Nakagawa 2015-02-17
8801167 Inkjet recording apparatus, method for inkjet recording, and ink Keita Katoh, Ichiroh Fujii, Masaki Kudo, Tomohiro Nakagawa, Koji Katsuragi 2014-08-12
8752948 Inkjet recording ink containing fluorine based surfactant, inkjet recording ink set, and inkjet recording apparatus containing the inkjet recording ink Takashi Tamai, Michihiko Namba, Akihiko Matsuyama, Kiyofumi Nagai 2014-06-17
8708473 Inkjet recording treatment liquid, inkjet cartridge, inkjet recording ink set, and inkjet recording method Michihiko Namba, Hidetoshi Fujii, Takashi Tamai 2014-04-29
8651650 Inkjet recording ink, inkjet recording inkset, ink cartridge, inkjet recording method, and recorded matter Akihiko Matsuyama, Ichiroh Fujii, Yuuki Yokohama, Kiyofumi Nagai, Mariko Kojima +2 more 2014-02-18
8586647 Recording ink, recording ink set, records, ink cartridge, recording method, and inkjet recording apparatus Mariko Kojima, Michihiko Namba, Kiyofumi Nagai, Naoya Morohoshi, Tohru Ohshima 2013-11-19
8580159 Ink for inkjet recording, ink set for inkjet recording, ink media set for inkjet recording, ink cartridge, inkjet recording method, and inkjet recording apparatus Michihiko Namba, Akihiko Matsuyama, Naoya Morohoshi, Tohru Ohshima, Masayuki Koyano +1 more 2013-11-12
8556405 Ink for recording, and ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method using the same Hisashi Habashi, Michihiko Namba, Mariko Kojima, Tamotsu Aruga, Kiyofumi Nagai 2013-10-15
8517527 Inkjet recording inkset and inkjet recording method Mariko Kojima 2013-08-27
8444755 Ink-jet recording ink, ink-jet recording ink set, ink-jet recording ink media set, ink cartridge, ink-jet recording method and ink-jet recording apparatus Michihiko Namba, Naoya Morohoshi, Tohru Ohshima, Kiyofumi Nagai 2013-05-21
8303099 Recording ink, ink cartridge, ink record, inkjet recording apparatus, and inkjet recording method Mariko Kojima, Tomohiro Inoue, Michihiko Namba, Hisashi Habashi, Akiko Bannai +1 more 2012-11-06
8252207 Ink for inkjet recording, ink set for inkjet recording, ink media set for inkjet recording, ink cartridge, inkjet recording method, and inkjet recording apparatus Michihiko Namba, Akihiko Matsuyama, Naoya Morohoshi, Tohru Ohshima, Masayuki Koyano +1 more 2012-08-28
8192009 Ink set and ink cartridge for ink-jet recording, ink-jet recording method, and ink-jet recording apparatus Yuuki Yokohama, Mariko Kojima, Hisashi Habashi 2012-06-05
8192013 Inkjet recording apparatus and inkjet recording method Naoya Morohoshi 2012-06-05
8173227 Recording ink, ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus, and inkjet recording method Naoya Morohoshi, Tamotsu Aruga, Michihiko Namba, Kiyofumi Nagai 2012-05-08
8118419 Ink jet recording method, recording device, ink/recording medium set, recording matter Naoya Morohoshi, Masayuki Koyano, Kiyofumi Nagai 2012-02-21