公开(公告)号：US20220291615A1

公开(公告)日：2022-09-15

申请号：US17574578

申请日：2022-01-13

申请人： Shigeo NANNO ,  Yasunori ISHIGAYA ,  Takahiro IMADA ,  Takumi WAIDA ,  Daisuke HIRANO

发明人： Shigeo NANNO ,  Yasunori ISHIGAYA ,  Takahiro IMADA ,  Takumi WAIDA ,  Daisuke HIRANO

IPC分类号： G03G15/20

摘要： A heating device includes a rotator, a heater, a heater holder, and a first high thermal conduction member. The heater includes a base and a plurality of heat generators being arranged on the base and including neighboring heat generators. The heater has a gap area between the neighboring heat generators. The first high thermal conduction member has a higher thermal conductivity than the base and faces the gap area.

公开(公告)号：US20220155712A1

公开(公告)日：2022-05-19

申请号：US17501290

申请日：2021-10-14

申请人： Takahiro IMADA ,  Yasunori ISHIGAYA ,  Shigeo NANNO ,  Takumi WAIDA ,  Daisuke HIRANO

发明人： Takahiro IMADA ,  Yasunori ISHIGAYA ,  Shigeo NANNO ,  Takumi WAIDA ,  Daisuke HIRANO

IPC分类号： G03G15/20

摘要： A heating device includes a heating rotator, a pressure rotator, a planar heater, and a holder. The pressure rotator is configured to press against the fixing rotator to form a nip through which the recording medium is conveyed. The planar heater includes a plurality of heat generators arranged side by side and at least one separation region between the plurality of heat generators. The holder holds the planar heater and contacts the planar heater in a pressure direction in which the pressure rotator presses the heating rotator. The holder includes at least one clearance structure configured to cause a contact area between the planar heater and a portion of the holder corresponding to the at least one separation region to be smaller than a contact area between the planar heater and a portion of the holder not corresponding to the at least one separation region.

公开(公告)号：US20230205118A1

公开(公告)日：2023-06-29

申请号：US17963195

申请日：2022-10-11

申请人： Yasunori ISHIGAYA ,  Keitaro SHOJI ,  Tomoya ADACHI ,  Daisuke HIRANO

发明人： Yasunori ISHIGAYA ,  Keitaro SHOJI ,  Tomoya ADACHI ,  Daisuke HIRANO

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2003

摘要： A heating device includes a first rotator, a heater including a base and a heat generator, and a second rotator contacting the first rotator. The heat generator adjacent to the base defines a heat generation area having one edge close to one edge of the base in a longitudinal direction of the base. A length between the one edge of the base and the one edge of the heat generation area is longer than a length between the other edge of the base and the other edge of the heat generation area. The second rotator has one edge close to the one edge of the heat generation area. A length between the one edge of the second rotator and the one edge of the heat generation area is shorter than a length between the other edge of the second rotator and the other edge of the heat generation area.

公开(公告)号：US20220382191A1

公开(公告)日：2022-12-01

申请号：US17739509

申请日：2022-05-09

申请人： Yuusuke FURUICHI ,  Hiroshi SEO ,  Tomoya ADACHI ,  Daisuke HIRANO

发明人： Yuusuke FURUICHI ,  Hiroshi SEO ,  Tomoya ADACHI ,  Daisuke HIRANO

IPC分类号： G03G15/20

摘要： A heating device includes a planar heater, a rotator, a pressure rotator, a heating device frame, a resistor, and a discharger. The pressure rotator has a conductive outer surface and presses the rotator. The heating device frame holds the pressure rotator. The discharger is in contact with the conductive outer surface of the pressure rotator and grounded via the resistor and the heating device frame.