公开(公告)号：US20200026210A1

公开(公告)日：2020-01-23

申请号：US16398867

申请日：2019-04-30

申请人： Yu HIRAI ,  Masayuki Ishii ,  Hyo Shu ,  Masayuki Kakimoto ,  Yoshitaka Sekiguchi ,  Shohta Kobayashi ,  Shinya Hanatani ,  Kohtaroh Ogino ,  Yasuaki Iwamoto

发明人： Yu HIRAI ,  Masayuki Ishii ,  Hyo Shu ,  Masayuki Kakimoto ,  Yoshitaka Sekiguchi ,  Shohta Kobayashi ,  Shinya Hanatani ,  Kohtaroh Ogino ,  Yasuaki Iwamoto

IPC分类号： G03G9/09 ,  G03G15/08 ,  G03G9/087 ,  G03G9/097 ,  G03G9/08

摘要： A toner is provided. The toner comprises a binder resin, a metal-containing azo dye, and a quaternary ammonium salt, has an average circularity of from 0.85 to 0.95, and is free of a tin compound having Sn—C bond.

公开(公告)号：US11036152B2

公开(公告)日：2021-06-15

申请号：US16492986

申请日：2018-02-21

申请人： Shohta Kobayashi ,  Satoshi Ogawa ,  Yoshitaka Sekiguchi ,  Masayuki Ishii ,  Naoko Kitada

发明人： Shohta Kobayashi ,  Satoshi Ogawa ,  Yoshitaka Sekiguchi ,  Masayuki Ishii ,  Naoko Kitada

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G21/18

摘要： Provided is a toner including a binder resin, a release agent, and a charge-controlling agent, wherein the toner includes toner particles having particle diameters of 3 micrometers or smaller, among the toner particles having particle diameters of 3 micrometers or smaller, a proportion of the toner particles having an average circularity of 0.70 or greater but 0.85 or less in all of the toner particles is 10% by number or greater but less than 20% by number and a proportion of the toner particles having an average circularity of less than 0.70 in all of the toner particles is 10% by number or less.

公开(公告)号：US10754270B2

公开(公告)日：2020-08-25

申请号：US16492818

申请日：2018-02-15

申请人： Naoko Kitada ,  Satoshi Ogawa ,  Yoshitaka Sekiguchi ,  Masayuki Ishii ,  Shohta Kobayashi

发明人： Naoko Kitada ,  Satoshi Ogawa ,  Yoshitaka Sekiguchi ,  Masayuki Ishii ,  Shohta Kobayashi

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/087 ,  G03G21/18 ,  G03G15/08

摘要： Provided is a toner including a binder resin, and a charge-controlling agent, wherein a volume average particle diameter X of the toner after a stress treatment satisfies Formula (1), and an amount Y of fine toner particles having particle diameters of 3 micrometers or smaller and circularity of 0.70 or less satisfies Formula (2).

公开(公告)号：US20150329668A1

公开(公告)日：2015-11-19

申请号：US14699204

申请日：2015-04-29

申请人： Kaori Miyahara ,  Taichi Nemoto ,  Yoko Arai ,  Susumu Chiba ,  Shohta Kobayashi ,  Yoshihito Shimada

发明人： Kaori Miyahara ,  Taichi Nemoto ,  Yoko Arai ,  Susumu Chiba ,  Shohta Kobayashi ,  Yoshihito Shimada

IPC分类号： C08G63/91

CPC分类号： C08G63/91 ,  C08G63/6852 ,  C08G63/912

摘要： An aliphatic polyester having a number-average molecular weight of from 500,000 to 2,000,000 includes an ester bonding site and an amide bonding site. The content of the amide bonding site is from 1×10−3% to 1×10−1% by mol based on total weight of the ester bonding site and the amide bonding site.

摘要翻译： 数均分子量为500,000至2,000,000的脂族聚酯包括酯键合位点和酰胺键合位点。 酰胺键合部位的含量相对于酯键合位置和酰胺键合位置的总重量为1×10 -3〜1×10 -1摩尔％。