公开(公告)号：US20230302706A1

公开(公告)日：2023-09-28

申请号：US18119332

申请日：2023-03-09

申请人： Takashi TANAKA ,  Shinya HANATANI

发明人： Takashi TANAKA ,  Shinya HANATANI

IPC分类号： B29C48/32

CPC分类号： B29C48/32 ,  B29K2067/046

摘要： A flow path forming device including a first flow path forming member and a second flow path forming member that form a tubular flow path through which a plastic composition is allowed to pass to mold the plastic composition. At least one of a flow path forming surface of the first flow path forming member and a flow path forming surface of the second flow path forming member has a surface roughness parameter Rk of 1.0 μm or more.

公开(公告)号：US20220314518A1

公开(公告)日：2022-10-06

申请号：US17704229

申请日：2022-03-25

申请人： Tomoharu Miki ,  Takashi Tanaka

发明人： Tomoharu Miki ,  Takashi Tanaka

IPC分类号： B29C48/86 ,  B29C48/00 ,  B29C48/32

摘要： An extrusion molding die includes an extrusion outlet, a plastic flow channel, and a temperature adjusting channel. The extrusion outlet is configured to extrude a plastic composition including at least one kind of plastic. The plastic flow channel is configured to allow the supplied plastic composition to flow toward the extrusion outlet. The temperature adjusting channel is configured to allow a temperature adjusting medium to flow. The temperature adjusting channel includes three or more temperature adjusting channels arranged around the plastic flow channel. Each of the temperature adjusting channels is arranged at a position in ±10% of (360°/N) in a rotation direction about an extrusion center axis relative to an adjacent temperature adjusting channel, where a number of the temperature adjusting channels is N.

公开(公告)号：US20230302707A1

公开(公告)日：2023-09-28

申请号：US18122136

申请日：2023-03-16

申请人： Hiroki MORIOKA ,  Takashi TANAKA

发明人： Hiroki MORIOKA ,  Takashi TANAKA

IPC分类号： B29C48/32 ,  B29C48/09 ,  B29C48/30

CPC分类号： B29C48/32 ,  B29C48/09 ,  B29C48/3003 ,  B29K2067/046

摘要： A flow path forming device including a first flow path forming member and a second flow path forming member that form a tubular flow path through which a plastic composition is allowed to pass to mold the plastic composition. At least one of a flow path forming surface of the first flow path forming member and a flow path forming surface of the second flow path forming member has a surface roughness parameter RPc of 60 or less.

公开(公告)号：US20220297367A1

公开(公告)日：2022-09-22

申请号：US17692129

申请日：2022-03-10

申请人： Takashi Tanaka

发明人： Takashi Tanaka

IPC分类号： B29C48/31 ,  B29C48/255 ,  B29C48/25

摘要： A die for extrusion molding includes an extrusion port configured to extrude a plastic composition, and a plastic flow channel configured to cause the supplied plastic composition to flow to the extrusion port. The plastic flow channel includes a supply flow channel, and an extrusion flow channel. The supply flow channel is configured to be supplied with the plastic composition. The extrusion flow channel has an upstream end coupled to the supply flow channel, and downstream end having the extrusion port. In the extrusion flow channel, a flow channel cross-sectional area perpendicular to the flow direction of the plastic composition in the extrusion flow channel gradually changes to the extrusion port, and an inner wall surface of a flow channel has a protruding surface protruding toward an inside of the flow channel in a cross section including an extrusion central axis and parallel to the extrusion central axis.

公开(公告)号：US10990043B2

公开(公告)日：2021-04-27

申请号：US16881539

申请日：2020-05-22

申请人： Makoto Nakamura ,  Takashi Tanaka

发明人： Makoto Nakamura ,  Takashi Tanaka

IPC分类号： G03G15/20

摘要： A fixing device receives a recording material having a toner image and applies pressure and heat to fix the toner image. The fixing device includes a fixing member, a sliding member, a pressing member, and a heating member. The fixing member has a rotatable endless belt shape that includes an inner circumferential resin layer. The sliding member is pressed against the inner circumferential surface of the fixing member with a lubricant interposed between the sliding member and the inner circumferential surface. The sliding member has a resin coating layer and slides on the inner circumferential surface. The pressing member presses the recording material toward an outer circumferential surface of the fixing member. The heating member generates heat to heat the recording material. A surface hardness of the inner circumferential surface of the fixing member is smaller than a surface hardness of the sliding surface of the sliding member.

公开(公告)号：US20220332031A1

公开(公告)日：2022-10-20

申请号：US17720345

申请日：2022-04-14

申请人： Satoshi OGAWA ,  Takashi TANAKA

发明人： Satoshi OGAWA ,  Takashi TANAKA

IPC分类号： B29C48/345 ,  B29C48/00

摘要： A mold for extrusion molding includes an extrusion port and a plastic channel. The extrusion port is configured to extrude a plastic composition containing at least one kind of plastic. The plastic channel is configured to cause the supplied plastic composition to flow to the extrusion port. The plastic channel includes a first channel, a second channel, and a third channel. The second channel is connected to the first channel and has a channel cross-sectional area gradually decreasing downstream in a flowing direction of the plastic composition. The third channel is connected to the second channel and configured to cause the plastic composition to flow to the extrusion port. The third channel has a channel cross-sectional area gradually decreasing downstream in the flowing direction of the plastic composition.