KK

Keita Katoh

Ricoh Company: 6 patents #82 of 1,810Top 5%
GC Goo Chemical Co.: 1 patents #1 of 13Top 8%
📍 Shizuoka, CO: #1 of 1 inventorsTop 100%
Overall (2017): #20,479 of 506,227Top 5%
6
Patents 2017

Issued Patents 2017

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9850335 Copolymer, aqueous ink, and ink cartridge Shigeyuki Harada, Masayuki Fukuoka, Kazukiyo Nagai, Yuusuke Koizuka, Tomoyuki Shimada +4 more 2017-12-26
9777091 Copolymer, ink, and ink container Masayuki Fukuoka, Shigeyuki Harada, Yoshiki Yanagawa, Kazukiyo Nagai, Yuusuke Koizuka +4 more 2017-10-03
9752037 Inkjet recording ink, ink cartridge, inkjet recording method, inkjet recording device and ink recorded matter Minoru Hakiri, Mitsuru Naruse, Masayasu Nonogaki, Akihiko Matsuyama, Kazukiyo Nagai +3 more 2017-09-05
9688871 Inkjet recording ink and ink cartridge using the ink, inkjet recording apparatus, inkjet recording method and ink recording matter Masayasu Nonogaki, Minoru Hakiri, Mitsuru Naruse, Akihiko Matsuyama, Kazukiyo Nagai +4 more 2017-06-27
9617439 Ink composition, ink cartridge, ink recording device, and recorded matter Akihiko Matsuyama, Shigeyuki Harada, Masayuki Fukuoka, Mitsuru Naruse, Kazukiyo Nagai +2 more 2017-04-11
9597891 Inkjet ink, method of manufacturing inkjet ink, ink cartridge, and inkjet recording device Masayasu Nonogaki, Mitsuru Naruse, Akihiko Matsuyama, Kazukiyo Nagai, Yuusuke Koizuka 2017-03-21