SH

Shigeyuki Harada

Ricoh Company: 42 patents #327 of 9,818Top 4%
Sharp Kabushiki Kaisha: 12 patents #1,389 of 10,731Top 15%
Overall (All Time): #47,410 of 4,157,543Top 2%
54
Patents All Time

Issued Patents All Time

Showing 1–25 of 54 patents

Patent #TitleCo-InventorsDate
11661523 Ink, ink accommodating unit, recording method, recording device, and method of manufacturing ink Takuya Yamazaki, Takuya Saiga 2023-05-30
11639064 Image forming method Takuya Saiga, Hidetoshi Fujii, Yuya Hirokawa 2023-05-02
11414557 Active-energy-ray-polymerizable initiator, active-energy-ray-polymerizable composition, active-energy-ray-polymerizable ink, ink storage container, image forming method, and image forming apparatus Hidetoshi Fujii 2022-08-16
11193029 Ink, ink accommodating container, recording device, recording method, and recorded matter Takuya Yamazaki, Takuya Saiga 2021-12-07
10844235 Ink, method of manufacturing ink, and ink cartridge Yuusuke Koizuka, Kazukiyo Nagai, Tomoyuki Shimada, Akihiko Matsuyama, Yoshiki Yanagawa +3 more 2020-11-24
10807377 Ink, ink cartridge, image forming method, and printed matter Takuya Yamazaki, Takuya Saiga, Hiroshi Gotou, Yuusuke Koizuka, Koichiro Oyama 2020-10-20
10633549 Ink, ink accommodating container, image forming method, and image forming device Takuya Yamazaki 2020-04-28
10370548 Copolymer, ink including copolymer, and ink-stored container Akihiko Matsuyama, Yoshiki Yanagawa, Masayuki Fukuoka, Takuya Yamazaki, Kazukiyo Nagai +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, Tomoyuki Shimada, Koichiro Oyama, Takuya Yamazaki +3 more 2019-04-30
10233341 Ink, method of manufacturing ink, and ink cartridge Yuusuke Koizuka, Kazukiyo Nagai, Tomoyuki Shimada, Akihiko Matsuyama, Yoshiki Yanagawa +3 more 2019-03-19
10035869 Copolymer, aqueous ink, and ink cartridge Yoshiki Yanagawa, Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai, Yuusuke Koizuka +2 more 2018-07-31
10000656 Ink, recorded matter, ink container, recording device, and recording method Yoshiki Yanagawa, Akihiko Matsuyama, Kazukiyo Nagai, Tomoyuki Shimada, Akiyoshi Sabu +3 more 2018-06-19
9988543 Ink, ink stored container, inkjet recording apparatus, and recorded matter Akihiko Matsuyama, Yoshiki Yanagawa, Masayuki Fukuoka, Takuya Yamazaki, Kazukiyo Nagai +3 more 2018-06-05
9896530 Copolymer, coloring material dispersion, ink, and ink store container Kazukiyo Nagai, Yuusuke Koizuka, Tomoyuki Shimada, Takuya Yamazaki, Koichiro Oyama +3 more 2018-02-20
9850391 Ink, ink stored container, inkjet printing method, and inkjet printing device Masayuki Fukuoka, Yoshiki Yanagawa, Takuya Yamazaki, Kazukiyo Nagai, Yuusuke Koizuka +3 more 2017-12-26
9850335 Copolymer, aqueous ink, and ink cartridge Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai, Yuusuke Koizuka, Tomoyuki Shimada +4 more 2017-12-26
9777091 Copolymer, ink, and ink container Masayuki Fukuoka, Yoshiki Yanagawa, Keita Katoh, Kazukiyo Nagai, Yuusuke Koizuka +4 more 2017-10-03
9617439 Ink composition, ink cartridge, ink recording device, and recorded matter Akihiko Matsuyama, Keita Katoh, Masayuki Fukuoka, Mitsuru Naruse, Kazukiyo Nagai +2 more 2017-04-11
9422437 Copolymer, aqueous ink, and ink cartridge Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai, Yuusuke Koizuka 2016-08-23
9416284 Copolymer, aqueous ink, and ink cartridge Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai, Yuusuke Koizuka 2016-08-16
9365670 Copolymer, aqueous ink, and ink cartridge Yoshiki Yanagawa, Keita Katoh, Masayuki Fukuoka, Kazukiyo Nagai, Yuusuke Koizuka +2 more 2016-06-14
9353274 Ink, ink cartridge, inkjet recording device, and copolymer Keita Katoh, Yoshiki Yanagawa, Masayuki Fukuoka, Kazukiyo Nagai, Tomoyuki Shimada +2 more 2016-05-31
9321926 Ink for inkjet recording, ink cartridge, and ink-recorded matter Keita Katoh, Masayuki Fukuoka, Mitsuru Naruse, Masayasu Nonogaki, Akihiko Matsuyama +2 more 2016-04-26
9263682 Light emitting device and display unit Masaomi Sasaki, Mikiko Abe 2016-02-16