公开(公告)号：EP4239463B1

公开(公告)日：2024-11-06

申请号：EP23157498.9

申请日：2023-02-20

发明人： REIMS, Colin ,  WALLER, Marquis G. ,  SHOULDICE, Kenneth Stuart ,  HARR, Kelly ,  CONDON, John Barker

IPC分类号： G06F3/12 ,  G06N3/04 ,  G06N3/08

公开(公告)号：EP4124454B1

公开(公告)日：2024-11-06

申请号：EP22182772.8

申请日：2022-07-04

发明人： KURODA, Takahiko ,  MORITA, Kaname ,  MASUDA, Toshiaki ,  SUZUKI, Arata ,  KITAOKA, Naoko

IPC分类号： B41J2/14 ,  B41J2/16

公开(公告)号：EP4094116B1

公开(公告)日：2024-11-06

申请号：EP21700230.2

申请日：2021-01-06

发明人： NAKAMURA, Naoki ,  ITOH, Masahiro ,  SUDOH, Yoshifumi ,  MOMMA, Susumu ,  OKAZAKI, Shun ,  HIRANO, Shigenobu ,  KATANO, Yasuo ,  KAMEYAMA, Kenji ,  IGARASHI, Norikazu ,  HASEGAWA, Aino

IPC分类号： G02B27/01

公开(公告)号：EP4064647B1

公开(公告)日：2024-11-06

申请号：EP22155399.3

申请日：2022-02-07

发明人： HINOHARA, Hiroshi ,  ANNAKA, Hidekuni ,  HOMMA, Takeshi

IPC分类号： H04L67/1097 ,  H04L9/40

公开(公告)号：EP3975534B1

公开(公告)日：2024-11-06

申请号：EP21196384.8

申请日：2021-09-13

发明人： ABIRU, Hiroyuki

IPC分类号： H04N1/32 ,  H04N1/00

公开(公告)号：EP4246398B1

公开(公告)日：2024-10-30

申请号：EP23161795.2

申请日：2023-03-14

发明人： Itoh, Izumi ,  Nakamura, Shuuichi ,  Nagai, Ken ,  Oshikiri, Kohji

IPC分类号： G06Q10/06 ,  G06Q10/04

公开(公告)号：EP4056372B1

公开(公告)日：2024-10-23

申请号：EP22159911.1

申请日：2022-03-03

发明人： NISHIMURA, Hiroshi

IPC分类号： B41J2/045

公开(公告)号：EP4053638B1

公开(公告)日：2024-10-16

申请号：EP22150720.5

申请日：2022-01-10

发明人： KUMAGAI, Naohiro ,  ADACHI, Tomoya ,  FURUICHI, Yuusuke

IPC分类号： G03G15/20

公开(公告)号：EP4439183A1

公开(公告)日：2024-10-02

申请号：EP24161859.4

申请日：2024-03-06

申请人： Ricoh Company, Ltd.

发明人： Kurose, Katsunori ,  Suzuki, Kazumi ,  Sawada, Toyoshi

IPC分类号： G03G9/087 ,  G03G9/09 ,  G03G9/08

CPC分类号： G03G9/0902 ,  G03G9/0926 ,  G03G9/08797 ,  G03G9/0819

摘要： Provided is a toner containing a phosphorescent pigment that contains Al element and Sr element, wherein the toner has an acid value of 10 mgKOH/g or more, the toner shows an Al intensity of from 180 kcps to 600 kcps when irradiated with fluorescent X-rays, a ratio (G/F) of an Al intensity measured when P80 to P85 particles (G) in a number-based particle size distribution of the toner are irradiated with fluorescent X-rays to an Al intensity measured when P20 to P25 particles (F) in the number-based particle size distribution of the toner is from 1.05 to 1.25, and a content of the phosphorescent pigment is 45% by mass or less.

公开(公告)号：EP4438309A1

公开(公告)日：2024-10-02

申请号：EP24166157.8

申请日：2024-03-26

申请人： Ricoh Company, Ltd.

发明人： HATTA, Chikako ,  AKIYAMA, Kohta

IPC分类号： B41J2/14

CPC分类号： B41J2002/1441920130101 ,  B41J2202/1120130101 ,  B41J2/14274

摘要： A liquid discharge head (404) includes a nozzle plate (1) and a channel substrate (2). The nozzle plate (1) has a nozzle from which a liquid is dischargeable. The channel substrate (2) is laminated over the nozzle plate (1). The channel substrate (2) has a pressure chamber (6), an individual supply chamber (8) having a first height h1, and a fluid restrictor (7). The liquid flows from the individual supply chamber (8) to the pressure chamber (6) through the fluid restrictor (7). The fluid restrictor (7) has a width narrower than each of a width of the pressure chamber (6) and a width of the individual supply chamber (8), and a second height h2 smaller than the first height h1. The first height h1 of the individual supply chamber (8) and the second height h2 of the fluid restrictor (7) satisfy 0.3 ≤ h2/h1 ≤ 0.6.