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公开(公告)号：US12025909B2
公开(公告)日：2024-07-02
申请号：US17664179
申请日：2022-05-19
Applicant: Konica Minolta, Inc.
Inventor： Yukiko Nakai , Toyoko Shibata , Kazuaki Nakamura , Kouji Sugama
IPC: G03C1/73 , C08F220/18 , G03G9/08
CPC classification number: G03C1/733 , C08F220/1806 , G03G9/08
Abstract: Provided is a compound which is fluidized by light irradiation and is less colored. The compound is a compound represented by the following general formula (1), which is fluidized by light irradiation:
R1—CH═N—R2 General Formula (1)
wherein R1 is a substituted or unsubstituted cyclic hydrocarbon group or a substituted or unsubstituted heterocyclic group; and R2 is a substituted or unsubstituted heterocyclic group containing a nitrogen atom bonded to the nitrogen atom in the general formula (1).-
公开(公告)号：US11762276B2
公开(公告)日：2023-09-19
申请号：US17376289
申请日：2021-07-15
Applicant: Konica Minolta, Inc.
Inventor： Yukiko Nakai , Kouji Sugama , Haruo Horiguchi , Kazuaki Nakamura , Toyoko Shibata
IPC: C09J133/08 , C09J133/14 , G02F1/00 , G03C1/73 , G03G9/09 , B41J11/00
CPC classification number: G03C1/733 , C09J133/08 , C09J133/14 , G02F1/0063 , G03G9/091 , B41J11/0021 , C08F220/1806 , C08F220/14 , C08F212/08 , C08F220/1804 , C08F220/06 , C08F257/02 , C08F212/08 , C08F220/1804 , C08F285/00 , C08F212/08 , C08F220/1804 , C08F220/06
Abstract: Provided is a compound that is fluidized by light irradiation and reversibly non-fluidized, and is not significantly colored.
Provided is a photoresponsive compound represented by the following general formula (1), the photoresponsive compound being fluidized by light irradiation and reversibly non-fluidized:
R1—Z1═Z2—R2 General formula (1)
wherein Z1 and Z2 are N or CH, while Z1≠Z2,
R1 contains an aromatic hydrocarbon structure,
R2 contains an aromatic heterocyclic structure, and
a hydrogen atom is bonded to at least one carbon atom bonded adjacent to a carbon atom in the aromatic heterocyclic structure bonded to the Z2.-
公开(公告)号：US20190011858A1
公开(公告)日：2019-01-10
申请号：US16028118
申请日：2018-07-05
Applicant: Konica Minolta, Inc.
Inventor： Seijiro Takahashi , Haruo Horiguchi , Toyoko Shibata
CPC classification number: G03G15/16 , G03G9/087 , G03G9/08711 , G03G9/08795 , G03G9/08797 , G03G9/0904 , G03G9/0926 , G03G15/04 , G03G15/2021 , G03G15/2039 , G03G15/2053 , G03G15/2064
Abstract: An object of the present invention is achieved by an image forming method containing the steps of: forming a toner image by developing an electrostatic latent image with a toner; transferring the toner image on a recording medium; and fixing the toner image on the recording medium, wherein the fixing step of the toner image on the recording medium further contains the steps of: irradiating light having a wavelength range of 280 to 480 nm to the toner image; and applying pressure to the toner image.
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公开(公告)号：US12181833B2
公开(公告)日：2024-12-31
申请号：US17376281
申请日：2021-07-15
Applicant: Konica Minolta, Inc.
Inventor： Kouji Sugama , Yukiko Nakai , Haruo Horiguchi , Kazuaki Nakamura , Toyoko Shibata
IPC: G03G9/087 , C08G63/688 , C09J9/00 , C09J167/00 , G03G15/20
Abstract: [Object]
An object of the present invention is to provide a photoresponsive polymer that sufficiently secures photoresponsiveness to be fluidized by light irradiation and reversibly non-fluidized, improves fixability, and further has good color reproducibility.
[Solution]
Provided is a photoresponsive polymer containing a structural unit derived from an azomethine derivative represented by the following general formula (1), the photoresponsive polymer being fluidized by light irradiation and reversibly non-fluidized: R1—Z1═Z2—R2 General formula (1): Z1 and Z2 are N or CH, while Z1≠Z2, R1 contains an aromatic hydrocarbon structure, R2 contains an aromatic heterocyclic structure, and a hydrogen atom is bonded to at least one carbon atom bonded adjacent to a carbon atom in the aromatic heterocyclic structure bonded to the Z2.-
公开(公告)号：US12006292B2
公开(公告)日：2024-06-11
申请号：US17659730
申请日：2022-04-19
Applicant: Konica Minolta, Inc.
Inventor： Yukiko Nakai , Kouji Sugama , Kazuaki Nakamura , Toyoko Shibata
IPC: C07D231/12 , C09J7/25 , G03G9/087 , G03G15/20 , B41J11/00 , C08F212/08 , C08F220/18 , C08F257/02 , C08F285/00 , G03G9/09
CPC classification number: C07D231/12 , C09J7/25 , G03G9/08708 , G03G9/08728 , G03G15/2064 , B41J11/0021 , C08F212/08 , C08F220/1806 , C08F257/02 , C08F285/00 , G03G9/0922
Abstract: Provided is a compound that is fluidized by light irradiation and reversibly non-fluidized, is not significantly colored, and improves fixability and exhibits excellent image stability and color reproducibility when used for a toner.
Provided is a compound represented by the following general formula (1), which is fluidized by light irradiation and reversibly non-fluidized:
wherein
Z1 and Z2 are CH or N, and Z1≠Z2;
R1 is an aromatic hydrocarbon group having a substituent Ra selected from the group consisting of an alkyl group, an alkoxy group and a halogen atom at each of two ortho positions with respect to Z1; and
R2 is a substituted or unsubstituted aromatic heterocyclic group.-
Patent Agency Ranking
公开(公告)号：US10705474B2
公开(公告)日：2020-07-07
申请号：US16186035
申请日：2018-11-09
Applicant: Konica Minolta, Inc.
Inventor： Haruo Horiguchi , Seijiro Takahashi , Toyoko Shibata
Abstract: There is disclosed an image post-processing method for adjusting glossiness of a fixed toner image. The method includes a glossiness control step and a temperature control step. The glossiness control step is a step of, to a toner image formed of a toner containing a light absorbing compound and fixed to a recording medium, emitting glossiness control light so as to reduce or increase glossiness of the toner image. The temperature control step is a step of heating the toner image immediately before the light is emitted to the toner image such that the toner image has a surface temperature which is at least 20° C. lower than a softening temperature of the toner. The glossiness control light has a maximum emission wavelength in a wavelength range in which the compound absorbs light and is made to at least reduce the glossiness of the toner image.
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公开(公告)号：US10481528B2
公开(公告)日：2019-11-19
申请号：US16028118
申请日：2018-07-05
Applicant: Konica Minolta, Inc.
Inventor： Seijiro Takahashi , Haruo Horiguchi , Toyoko Shibata
Abstract: An object of the present invention is achieved by an image forming method containing the steps of: forming a toner image by developing an electrostatic latent image with a toner; transferring the toner image on a recording medium; and fixing the toner image on the recording medium, wherein the fixing step of the toner image on the recording medium further contains the steps of: irradiating light having a wavelength range of 280 to 480 nm to the toner image; and applying pressure to the toner image.
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公开(公告)号：US10394144B2
公开(公告)日：2019-08-27
申请号：US15891955
申请日：2018-02-08
Applicant: Konica Minolta, Inc.
Inventor： Tomoko Sakimura , Toyoko Shibata , Masanori Yumita
Abstract: An electrophotographic photosensitive body includes at least a photosensitive layer and a protective layer sequentially laminated on an electroconductive support, wherein the protective layer has a domain containing perfluoropolyether.
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9.发明授权公开(公告)号：US12037531B2
公开(公告)日：2024-07-16
申请号：US16788535
申请日：2020-02-12
Applicant: KONICA MINOLTA, INC.
Inventor： Haruo Horiguchi , Yukiko Kusano , Kouji Sugama , Seijiro Takahashi , Toyoko Shibata , Tomohiro Oshiyama
IPC: C09K19/24 , C08F120/38 , C08F212/08 , C08F220/18 , C08F220/38 , C08F257/02 , C08K5/04 , C09D125/08 , C09D133/14 , C09K19/34 , C09K19/54 , G03F7/004
CPC classification number: C09K19/24 , C09K19/348 , C09K19/542
Abstract: Provided is a polymer that includes a predetermined structural unit derived from an azomethine derivative having a polymerizable group and is reversibly fluidized and non-fluidized by being irradiated with light.
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10.发明授权公开(公告)号：US10754287B2
公开(公告)日：2020-08-25
申请号：US16185939
申请日：2018-11-09
Applicant: Konica Minolta, Inc.
Inventor： Haruo Horiguchi , Seijiro Takahashi , Toyoko Shibata
Abstract: An image post-processing method includes a glossiness control step of irradiating a fixed toner image with a glossiness control light. The toner image is formed with a toner containing a compound that absorbs light. The glossiness control light is capable of at least reducing a glossiness of the fixed toner image. The glossiness control light has a maximum emission wavelength in a wavelength region which is absorbed by the compound.
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