公开(公告)号：US20220011686A1

公开(公告)日：2022-01-13

申请号：US17371222

申请日：2021-07-09

Applicant: Konica Minolta, Inc.

Inventor： Takanari KAYAMORI ,  Yuya KUBO ,  Shiro HIRANO

IPC: G03G9/09 ,  G03G9/087 ,  G03G9/097 ,  G03G9/08 ,  G03G15/20

Abstract: The toner for developing an electrostatic charge image of the present invention contains a toner base particle comprising a binder resin and at least two kinds of organic pigments, and strontium titanate as an external additive.

公开(公告)号：US20180217312A1

公开(公告)日：2018-08-02

申请号：US15748434

申请日：2016-07-12

Applicant: Konica Minolta, Inc.

Inventor： Saburou HIRAOKA ,  Kenichi ONAKA ,  Daisuke WATANABE ,  Yuya KUBO ,  Kishio TAMURA

IPC: G02B5/32 ,  G03H1/02 ,  G03H1/04 ,  C08K5/37 ,  C08K5/378

CPC classification number: G02B5/32 ,  C08K5/37 ,  C08K5/378 ,  G02B27/01 ,  G02B27/02 ,  G03H1/02 ,  G03H1/0248 ,  G03H1/04 ,  G03H1/0402 ,  G03H2001/0439 ,  G03H2260/12 ,  G11B7/24044

Abstract: The present invention relates to a holographic optical element having a volume hologram recording layer containing a photopolymer, and at least one adjacent layer that is in contact with the volume hologram recording layer and contains a resin and a thiol compound. According to the present invention, a means for improving the diffraction efficiency of a holographic optical element having a volume hologram recording layer is provided.

公开(公告)号：US20220350269A1

公开(公告)日：2022-11-03

申请号：US17726159

申请日：2022-04-21

Applicant: Konica Minolta, Inc.

Inventor： Yuya KUBO ,  Takanari KAYAMORI ,  Naoya TONEGAWA ,  Noboru UEDA

IPC: G03G9/083 ,  G03G9/087

Abstract: Disclosed is an electrostatic charge image developing toner including: toner base particles containing at least a binder resin and a magnetic material; and an external additive, wherein the binder resin contains a crystalline resin; and the external additive contains strontium titanate particles doped with metal elements other than titanium and strontium.

公开(公告)号：US20220011687A1

公开(公告)日：2022-01-13

申请号：US17371238

申请日：2021-07-09

Applicant: Konica Minolta, Inc.

Inventor： Shiro HIRANO ,  Takanari KAYAMORI ,  Yuya KUBO

IPC: G03G9/09 ,  G03G9/087 ,  G03G9/097 ,  G03G9/08

Abstract: The toner for developing an electrostatic charge image of the present invention contains a toner base particle comprising a binder resin and at least two kinds of organic pigments, and alumina as an external additive. The at least two kinds of organic pigments comprises: a pigment P1 having an absorption maximum wavelength λmax (nm) of greater than 400 nm and less than 600 nm when dispersed in methyl ethyl ketone; and a pigment P2 having an absorption maximum wavelength λ max (nm) of 600 nm or more and 700 nm or less when dispersed in methyl ethyl ketone.

公开(公告)号：US20220011685A1

公开(公告)日：2022-01-13

申请号：US17371228

申请日：2021-07-09

Applicant: Konica Minolta, Inc.

Inventor： Yuya KUBO ,  Takanari KAYAMORI ,  Noboru UEDA

IPC: G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G15/20

Abstract: The toner for developing an electrostatic charge image of the present invention contains a toner base particle comprising a binder resin, at least two kinds of organic pigments and carbon black, and strontium titanate as an external additive.

公开(公告)号：US20220397837A1

公开(公告)日：2022-12-15

申请号：US17825149

申请日：2022-05-26

Applicant: Konica Minolta, Inc.

Inventor： Takanari KAYAMORI ,  Yuya KUBO

IPC: G03G9/09 ,  G03G9/097

Abstract: A two-component developer includes an electrostatic image developing toner and a carrier, and the electrostatic image developing toner contains toner particles having toner base particles and an external additive. The toner base particles contain a colorant, the colorant contains a pigment P1 and a pigment P2, the absorption maximum wavelength λmax of the pigments P1 and P2 each in dispersion in methyl ethyl ketone is, 400 nm or more and less than 600 nm for the pigment P1 and 600 nm or more and 700 nm or less for the pigment P2, the external additive contains titanium oxide, the content of the titanium oxide is 0.01% by mass or more and less than 1.00% by mass based on the total mass of the toner base particles, and the iron element content (atomic %) of the surface of the carrier as measured by X-ray electron spectroscopy satisfies a specific expression.

公开(公告)号：US20150220015A1

公开(公告)日：2015-08-06

申请号：US14608352

申请日：2015-01-29

Applicant: KONICA MINOLTA, INC.

Inventor： Yuya KUBO ,  Chiaki YAMADA ,  Masahiro ANNO ,  Kazuyoshi GOAN

IPC: G03G9/12

CPC classification number: G03G9/122

Abstract: A liquid developer includes an insulating liquid and toner particles which are dispersed in the insulating liquid and contain a resin and a coloring agent. The coloring agent contains nigrosine and a pigment derivative, and preferably further contains carbon black. Preferably, Wn and Ws satisfy relation of 0.15≦Ws/Wn≦0.80, where Wn represents a ratio of content (mass %) of nigrosine in the toner particles and Ws represents a ratio of content (mass %) of the pigment derivative in the toner particles.

Abstract translation: 液体显影剂包括分散在绝缘液体中并含有树脂和着色剂的绝缘液体和调色剂颗粒。 着色剂含有苯胺黑和颜料衍生物，优选还含有炭黑。 优选Wn和Ws满足关系0.15＆nlE; Ws / Wn＆nlE; 0.80，其中Wn表示调色剂颗粒中苯胺黑含量（质量％）的比例，Ws表示颜料衍生物的含量（质量％） 调色剂颗粒。