Issued Patents All Time
Showing 1–25 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10844235 | Ink, method of manufacturing ink, and ink cartridge | Yuusuke Koizuka, Kazukiyo Nagai, Shigeyuki Harada, Akihiko Matsuyama, Yoshiki Yanagawa +3 more | 2020-11-24 |
| 10781325 | Curable composition, curable ink, accommodating container, image forming device, image forming method, cured matter, and acrylamide compound | Mitsunobu Morita, Soh Noguchi, Takashi Okada, Kazukiyo Nagai, Yuusuke Koizuka | 2020-09-22 |
| 10370548 | Copolymer, ink including copolymer, and ink-stored container | Shigeyuki Harada, Akihiko Matsuyama, Yoshiki Yanagawa, Masayuki Fukuoka, Takuya Yamazaki +3 more | 2019-08-06 |
| 10280321 | Ink, ink container, inkjet recording device, and recorded matter | Akihiko Matsuyama, Hiroshi Gotou, Michihiko Namba, Hidetoshi Fujii, Amika Sagara +7 more | 2019-05-07 |
| 10273373 | Ink and method for producing same, and ink stored container, printing method, and printing apparatus | Yuusuke Koizuka, Kazukiyo Nagai, Shigeyuki Harada, Koichiro Oyama, Takuya Yamazaki +3 more | 2019-04-30 |
| 10233341 | Ink, method of manufacturing ink, and ink cartridge | Yuusuke Koizuka, Kazukiyo Nagai, Shigeyuki Harada, Akihiko Matsuyama, Yoshiki Yanagawa +3 more | 2019-03-19 |
| 10035869 | Copolymer, aqueous ink, and ink cartridge | Shigeyuki Harada, Yoshiki Yanagawa, Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai +2 more | 2018-07-31 |
| 10000656 | Ink, recorded matter, ink container, recording device, and recording method | Yoshiki Yanagawa, Akihiko Matsuyama, Kazukiyo Nagai, Shigeyuki Harada, Akiyoshi Sabu +3 more | 2018-06-19 |
| 9988543 | Ink, ink stored container, inkjet recording apparatus, and recorded matter | Akihiko Matsuyama, Shigeyuki Harada, Yoshiki Yanagawa, Masayuki Fukuoka, Takuya Yamazaki +3 more | 2018-06-05 |
| 9896530 | Copolymer, coloring material dispersion, ink, and ink store container | Shigeyuki Harada, Kazukiyo Nagai, Yuusuke Koizuka, Takuya Yamazaki, Koichiro Oyama +3 more | 2018-02-20 |
| 9850391 | Ink, ink stored container, inkjet printing method, and inkjet printing device | Masayuki Fukuoka, Shigeyuki Harada, Yoshiki Yanagawa, Takuya Yamazaki, Kazukiyo Nagai +3 more | 2017-12-26 |
| 9850335 | Copolymer, aqueous ink, and ink cartridge | Shigeyuki Harada, Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai, Yuusuke Koizuka +4 more | 2017-12-26 |
| 9777091 | Copolymer, ink, and ink container | Masayuki Fukuoka, Shigeyuki Harada, Yoshiki Yanagawa, Keita Katoh, Kazukiyo Nagai +4 more | 2017-10-03 |
| 9365670 | Copolymer, aqueous ink, and ink cartridge | Shigeyuki Harada, Yoshiki Yanagawa, Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai +2 more | 2016-06-14 |
| 9353274 | Ink, ink cartridge, inkjet recording device, and copolymer | Keita Katoh, Shigeyuki Harada, Yoshiki Yanagawa, Masayuki Fukuoka, Kazukiyo Nagai +2 more | 2016-05-31 |
| 9313264 | System capable of providing plurality of digital contents and method using same | Shinya Masuda | 2016-04-12 |
| 9235146 | Photoconductor | — | 2016-01-12 |
| 9040215 | Amine compound, electrophotographic photoconductor, image forming method, image forming apparatus, and process cartridge | Masayoshi Nomura, Ryota Arai | 2015-05-26 |
| 9005856 | Hydroxygallium porphyrazine derivative mixture and electrophotographic photoconductor | Ryota Arai | 2015-04-14 |
| 8889324 | Image bearing member, image forming method, image forming apparatus, and process cartridge | Ryota Arai | 2014-11-18 |
| 8809543 | Electrophotographic photoreceptor, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge for electrophotographic image forming apparatus | Ryota Arai | 2014-08-19 |
| 8586270 | Electrophotographic photoconductor, electrophotographic method, and electrophotographic apparatus | Ryota Arai, Minoru Umeda | 2013-11-19 |
| 8380109 | Image forming apparatus and process cartridge | Eiji Kurimoto, Keisuke Shimoyama, Masafumi Ohta, Yuuji Tanaka | 2013-02-19 |
| 8304153 | Electrophotographic photoreceptor, electrophotographic image forming method, electrophotographic image forming apparatus, electrophotographic process cartridge | Ryota Arai | 2012-11-06 |
| 8298734 | Electrophotographic photoreceptor, image forming method, image forming apparatus, and process cartridge | Naohiro Toda, Yoshinori Inaba | 2012-10-30 |