公开(公告)号：US5804309A

公开(公告)日：1998-09-08

申请号：US820282

申请日：1997-03-18

申请人： Tetsuya Itoh ,  Takafumi Yamamoto ,  Hiroki Sugiura ,  Atsuhiro Kawano ,  Wataru Imamura ,  Saburou Hayashi

发明人： Tetsuya Itoh ,  Takafumi Yamamoto ,  Hiroki Sugiura ,  Atsuhiro Kawano ,  Wataru Imamura ,  Saburou Hayashi

IPC分类号： F16C13/00 ,  G03G15/02 ,  D02G3/00 ,  B25F5/02

CPC分类号： G03G15/0233 ,  Y10S428/906 ,  Y10T428/2933 ,  Y10T428/294 ,  Y10T428/2947 ,  Y10T428/31989

摘要： A charging roll which is held in contact with an outer circumferential surface of an image bearing medium for charging the surface of the image bearing medium by application of a DC voltage and an AC voltage which is superimposed on the DC voltage, the charging roll comprising: a center shaft; an electrically conductive base layer formed on an outer circumferential surface of the shaft; an outer structure formed on an outer circumferential surface of the conductive base layer; and the charging roll having Asker C hardness of less than 48 degrees as measured upon application of 1 kg load thereto and micro rubber hardness in a range of 65-85 degrees as measured upon application of 33.85 g load thereto.

摘要翻译： 一种充电辊，其与图像承载介质的外周面保持接触，用于通过施加直流电压和叠加在直流电压上的交流电压来对图像承载介质的表面充电，所述充电辊包括： 中心轴; 形成在所述轴的外周面上的导电性基底层; 形成在所述导电性基底层的外周面上的外部结构体; 以及在施加1kg负载时测量的Asker C硬度小于48度的充电辊和在其施加33.85g载荷时测量的65-85度范围内的微橡胶硬度。

公开(公告)号：US5753154A

公开(公告)日：1998-05-19

申请号：US731973

申请日：1996-10-23

申请人： Saburou Hayashi ,  Keita Shiraki ,  Takafumi Yamamoto

发明人： Saburou Hayashi ,  Keita Shiraki ,  Takafumi Yamamoto

IPC分类号： B29C44/04 ,  B29C44/24 ,  B29C70/72 ,  B29C70/88 ,  B29D99/00 ,  B29K21/00 ,  B29K105/04 ,  F16C13/00 ,  G03G15/02 ,  G03G15/08 ,  B29C44/06 ,  B29C44/12

CPC分类号： B29C44/24 ,  B29C44/0461 ,  B29C70/72 ,  B29C70/882 ,  B29D99/0035 ,  G03G15/0233 ,  G03G15/0818 ,  B29L2031/32 ,  B29L2031/324 ,  G03G2215/0861 ,  G03G2215/0863

摘要： A conductive roll including a conductive shaft, a conductive rubber foam layer formed on an outer circumferential surface of the conductive shaft, and a semi-conductive solid rubber layer formed on an outer circumferential surface of the conductive rubber foam layer. The conductive roll is produced by forming a cylindrical laminar body which gives the conductive rubber foam layer and semi-conductive solid rubber layer, and simultaneously vulcanizing and foaming the laminar body in a mold in which the conductive shaft is placed in position.

摘要翻译： 包括导电轴的导电辊，形成在导电轴的外圆周表面上的导电橡胶泡沫层和形成在导电橡胶泡沫层的外圆周表面上的半导体固体橡胶层。 通过形成导电橡胶发泡层和半导体固体橡胶层的圆柱形层状体，同时在导电轴被放置就位的模具中同时硫化和发泡层状体来制造导电性辊。

公开(公告)号：US5768668A

公开(公告)日：1998-06-16

申请号：US790858

申请日：1997-02-03

申请人： Keita Shiraki ,  Saburou Hayashi ,  Akitoshi Nozawa ,  Mitsuyoshi Kondo

发明人： Keita Shiraki ,  Saburou Hayashi ,  Akitoshi Nozawa ,  Mitsuyoshi Kondo

IPC分类号： B29D99/00 ,  B29K75/00 ,  B29K105/04 ,  F16C13/00 ,  G03G15/08

CPC分类号： G03G15/0808 ,  G03G2215/0174 ,  G03G2215/0869

摘要： A toner supply roll including a metal shaft and a cylindrical soft polyurethane sponge structure formed on an outer circumferential surface of the metal shaft by foam molding of a polyurethane material in a mold cavity of a mold. The sponge structure having a hardness of 350 g or lower includes a skin layer having generally smooth surface and openings, and a network of cells. The openings are open in the smooth surface and communicate with respective ones of the cells located adjacent to the skin layer, such that the openings are substantially aligned with central portions of the respective ones of the cells in axial and radial directions of the sponge structure. Each opening has a size within a range of 100-800 .mu.m, and a total area of the openings is at least 20% of a total area of the smooth surface of the skin layer. The method of producing the roll is also disclosed.

摘要翻译： 一种调色剂供应辊，其包括金属轴和圆筒形软质聚氨酯海绵结构，其通过在模具的模腔中的聚氨酯材料的发泡成型形成在所述金属轴的外周表面上。 具有350g或更低的硬度的海绵结构包括具有通常光滑的表面和开口的表层和细胞网络。 开口在光滑的表面上开口并且与位于皮肤层附近的相应的单元连通，使得开口基本上与海绵结构的轴向和径向方向上的相应单元的中心部分对齐。 每个开口的尺寸在100-800μm的范围内，并且开口的总面积为表层的光滑表面的总面积的至少20％。 还公开了生产辊的方法。

公开(公告)号：US5609554A

公开(公告)日：1997-03-11

申请号：US416638

申请日：1995-04-05

申请人： Saburou Hayashi ,  Keita Shiraki ,  Takafumi Yamamoto

发明人： Saburou Hayashi ,  Keita Shiraki ,  Takafumi Yamamoto

IPC分类号： B29C44/04 ,  B29C44/24 ,  B29C70/72 ,  B29C70/88 ,  B29D99/00 ,  B29K21/00 ,  B29K105/04 ,  F16C13/00 ,  G03G15/02 ,  G03G15/08 ,  G03G15/20

CPC分类号： B29C44/24 ,  B29C44/0461 ,  B29C70/72 ,  B29C70/882 ,  B29D99/0035 ,  G03G15/0233 ,  G03G15/0818 ,  B29L2031/32 ,  B29L2031/324 ,  G03G2215/0861 ,  G03G2215/0863

摘要： A conductive roll including a conductive shaft, a conductive rubber foam layer formed on an outer circumferential surface of the conductive shaft, and a semi-conductive solid rubber layer formed on an outer circumferential surface of the conductive rubber foam layer. The conductive roll is produced by forming a cylindrical laminar body which gives the conductive rubber foam layer and semi-conductive solid rubber layer, and simultaneously vulcanizing and foaming the laminar body in a mold in which the conductive shaft is placed in position.

摘要翻译： 包括导电轴的导电辊，形成在导电轴的外圆周表面上的导电橡胶泡沫层和形成在导电橡胶泡沫层的外圆周表面上的半导体固体橡胶层。 通过形成导电橡胶发泡层和半导体固体橡胶层的圆柱形层状体，同时在导电轴被放置就位的模具中同时硫化和发泡层状体来制造导电性辊。

公开(公告)号：US5378525A

公开(公告)日：1995-01-03

申请号：US088524

申请日：1993-07-09

申请人： Takafumi Yamamoto ,  Masaaki Inubushi ,  Sumio Oinuma ,  Saburou Hayashi ,  Shigeru Nishijima ,  Masaharu Ishikawa

发明人： Takafumi Yamamoto ,  Masaaki Inubushi ,  Sumio Oinuma ,  Saburou Hayashi ,  Shigeru Nishijima ,  Masaharu Ishikawa

IPC分类号： G03G15/02 ,  G03G15/08 ,  G03G15/16 ,  G03G15/20 ,  B32B23/02

CPC分类号： G03G15/1685 ,  G03G15/0233 ,  G03G15/0818 ,  G03G15/206 ,  G03G2215/2064 ,  Y10T428/13 ,  Y10T428/24777 ,  Y10T428/24793 ,  Y10T428/31739 ,  Y10T428/31855

摘要： A crowned resilient roll whose diameter is continuously increased from axially opposite ends of the roll toward an axially middle point thereof is disclosed. The resilient roll includes a columnar roll body formed of a resilient material, and a coating layer formed on an outer circumferential surface of the roll body. The thickness of the coating layer is varied in an axial direction of the roll body, such that the coating layer has the largest thickness at an axially middle point of the roll body, and such that the thickness is gradually reduced from the middle point toward axially opposite ends of the roll body. Also disclosed is a method of making such a crowned resilient roll having a coating layer of varying thickness.

摘要翻译： 公开了一种冠状弹性辊，其直径从辊的轴向相对端朝向轴向中间点连续增加。 弹性辊包括由弹性材料形成的柱状辊体，以及形成在辊体的外周面上的涂层。 涂层的厚度在辊体的轴向上变化，使得涂层在辊体的轴向中点处具有最大的厚度，并且使得厚度从中点朝向轴向逐渐减小 辊体的相对端。 还公开了制造这种具有不同厚度的涂层的冠状弹性辊的方法。

公开(公告)号：US5604031A

公开(公告)日：1997-02-18

申请号：US261922

申请日：1994-06-17

申请人： Takafumi Yamamoto ,  Sumio Oinuma ,  Kazutoshi Soumiya ,  Saburou Hayashi ,  Hiroyasu Kato

发明人： Takafumi Yamamoto ,  Sumio Oinuma ,  Kazutoshi Soumiya ,  Saburou Hayashi ,  Hiroyasu Kato

IPC分类号： F16C13/00 ,  G03G15/02 ,  G03G15/16 ,  G03G21/00 ,  B32B15/08 ,  B32B27/00 ,  B32B27/08

CPC分类号： G03G21/0058 ,  G03G15/0233 ,  G03G15/1685 ,  Y10S428/906 ,  Y10T428/264 ,  Y10T428/266 ,  Y10T428/31692 ,  Y10T428/31739 ,  Y10T428/31743 ,  Y10T428/31855 ,  Y10T428/31909

摘要： An electrically conductive roll is disclosed, which includes: a center shaft; a base layer formed on an outer circumferential surface of the center shaft and including an elastic material as a major component and an ion-conductive material, the base layer having a volume resistivity of 10.sup.6 -10.sup.9 .OMEGA.cm; an electrode layer formed on an outer surface of the base layer and including a synthetic resin material as a major component and an electron-conductive material, the electrode layer having a volume resistivity of not more than 10.sup.3 .OMEGA.cm; a resistance adjusting layer formed on an outer surface of the electrode layer; and a protective layer formed on an outer surface of the resistance adjusting layer.

摘要翻译： 公开了一种导电辊，其包括：中心轴; 形成在所述中心轴的外周面上并且包括弹性材料作为主要成分的基底层和离子传导材料，所述基底层具有106-109欧姆·厘米的体积电阻率; 形成在所述基层的外表面上并且包括合成树脂材料作为主要成分的电极层和电子传导材料，所述电极层的体积电阻率不大于103欧米亚厘米; 电阻调节层，形成在所述电极层的外表面上; 以及形成在电阻调节层的外表面上的保护层。

公开(公告)号：US5455077A

公开(公告)日：1995-10-03

申请号：US287804

申请日：1994-08-09

申请人： Takafumi Yamamoto ,  Masaaki Inubushi ,  Sumio Oinuma ,  Saburou Hayashi ,  Shigeru Nishijima ,  Masaharu Ishikawa

发明人： Takafumi Yamamoto ,  Masaaki Inubushi ,  Sumio Oinuma ,  Saburou Hayashi ,  Shigeru Nishijima ,  Masaharu Ishikawa

IPC分类号： G03G15/02 ,  G03G15/08 ,  G03G15/16 ,  G03G15/20 ,  B05D1/02

CPC分类号： G03G15/1685 ,  G03G15/0233 ,  G03G15/0818 ,  G03G15/206 ,  G03G2215/2064 ,  Y10T428/13 ,  Y10T428/24777 ,  Y10T428/24793 ,  Y10T428/31739 ,  Y10T428/31855

摘要： A crowned resilient roll whose diameter is continuously increased from axially opposite ends of the roll toward an axially middle point thereof is disclosed. The resilient roll includes a columnar roll body formed of a resilient material, and a coating layer formed on an outer circumferential surface of the roll body. The thickness of the coating layer is varied in an axial direction of the roll body, such that the coating layer has the largest thickness at an axially middle point of the roll body, and such that the thickness is gradually reduced from the middle point toward axially opposite ends of the roll body. Also disclosed is a method of making such a crowned resilient roll having a coating layer of varying thickness.

摘要翻译： 公开了一种冠状弹性辊，其直径从辊的轴向相对端朝向轴向中间点连续增加。 弹性辊包括由弹性材料形成的柱状辊体，以及形成在辊体的外周面上的涂层。 涂层的厚度在辊体的轴向上变化，使得涂层在辊体的轴向中点处具有最大的厚度，并且使得厚度从中点朝向轴向逐渐减小 辊体的相对端。 还公开了制造这种具有不同厚度的涂层的冠状弹性辊的方法。