Patents by Inventor Osamu Soutome
Osamu Soutome has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7615286Abstract: An object of the present invention is to provide a fixing member which includes a surface layer including fluorine rubber having an ether bond and a polysiloxane having a polyether structure, and which has excellent adhesion between the surface layer and a substrate. A fixing member is provided including a substrate, an adhesion layer and a surface layer disposed in contact with the adhesion layer, wherein the surface layer includes fluorine rubber having an ether bond and a polysiloxane having a polyether structure, and wherein the adhesion layer contains a polyorganosiloxane resin and an existence ratio of carbon combining with oxygen to silicon combining with oxygen in the adhesion layer is 1.0 or more and 20.0 or less.Type: GrantFiled: March 31, 2008Date of Patent: November 10, 2009Assignee: Canon Kabushiki KaishaInventors: Yuji Kitano, Osamu Soutome
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Publication number: 20080187852Abstract: An object of the present invention is to provide a fixing member which includes a surface layer including fluorine rubber having an ether bond and a polysiloxane having a polyether structure, and which has excellent adhesion between the surface layer and a substrate. A fixing member is provided including a substrate, an adhesion layer and a surface layer disposed in contact with the adhesion layer, wherein the surface layer includes fluorine rubber having an ether bond and a polysiloxane having a polyether structure, and wherein the adhesion layer contains a polyorganosiloxane resin and an existence ratio of carbon combining with oxygen to silicon combining with oxygen in the adhesion layer is 1.0 or more and 20.0 or less.Type: ApplicationFiled: March 31, 2008Publication date: August 7, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Yuji Kitano, Osamu Soutome
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Patent number: 6862424Abstract: An image heating apparatus includes a heater: a rotatable member movable while being in contact with contact, the rotatable member including a metal layer and an elastic layer: a pressing member cooperative with the heater to form a nip for nipping and feeding a recording material; wherein the metal layer has a thickness which is not less than 10 ?m and not more than 60 ?m, and wherein a pressure per unit length with respect to a longitudinal direction of the nip is not less than 0.39N/mm and not more than 0.98N/mm.Type: GrantFiled: December 10, 2002Date of Patent: March 1, 2005Assignee: Canon Kabushiki KaishaInventors: Katsuhisa Matsunaka, Masaaki Takahashi, Osamu Soutome
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Publication number: 20030138263Abstract: An image heating apparatus includes a heater; a rotatable member movable while being in contact with contact, the rotatable member including a metal layer and an elastic layer; a pressing member cooperative with the heater to form a nip for nipping and feeding a recording material; wherein the metal layer has a thickness which is not less than 10 &mgr;m and not more than 60 &mgr;m, and wherein a pressure per unit length with respect to a longitudinal direction of the nip is not less than 0.39 N/mm and not more than 0.Type: ApplicationFiled: December 10, 2002Publication date: July 24, 2003Applicant: Canon Kabushiki KaishaInventors: Katsuhisa Matsunaka, Masaaki Takahashi, Osamu Soutome
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Patent number: 6546223Abstract: A roller has an elastic layer formed by curing a silicone rubber material containing at least expanded resin microballons, wherein, when the roller is placed in a vacuum chamber in which atmospheric pressure is reduced to 0.001 MPa or less over 2 minutes, the roller has a gas permeability indicating the recovery characteristic where an increased amount of the thickness of the elastic layer after 10 minutes from the start of evacuation is two-thirds or less of the maximum increased amount of thickness of the elastic layer during a 10 minute period from the start of evacuation. The elastic layer is formed by curing a silicone rubber material containing the expanded resin microballoons and has air void portions formed by breaking the resin microballoons and passages connecting the air void portions therebetween.Type: GrantFiled: August 27, 2001Date of Patent: April 8, 2003Assignee: Canon Kabushiki KaishaInventors: Kazuo Kishino, Masaaki Takahashi, Hideo Kawamoto, Osamu Soutome, Yuji Kitano
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Patent number: 6539196Abstract: The invention provides a roll member capable of preventing a sheet of recording paper from wrinkling. A metal compound MmXn and an inorganic fine powder are added to a silicone rubber layer forming the surface layer of the roll member. In the compound formula, M is a cation selected from among ions of Al, Sc, Cr, Fe, Co, Ni, Cu, Zn and Ga, and X is an anion selected from among ions of halogens, inorganic acids and organic acids.Type: GrantFiled: December 28, 1999Date of Patent: March 25, 2003Assignee: Canon Kabushiki KaishaInventors: Mitsuhiro Ota, Kazuo Kishino, Jiro Ishizuka, Osamu Soutome
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Patent number: 6459878Abstract: A heating assembly having a press roller which has an elastic layer incorporated dispersedly with voids formed by resin microballoons. The press roller has a low thermal conductivity, hence heat from a heating means can effectively be utilized. It has also a low hardness, so that a pressure contact nip formed between it and the heating means can be made wider.Type: GrantFiled: September 26, 2000Date of Patent: October 1, 2002Assignee: Canon Kabushiki KaishaInventors: Yoji Tomoyuki, Yusuke Nakazono, Ken Nakagawa, Satoru Taniguchi, Hikaru Osada, Kazuo Kishino, Masaaki Takahashi, Hideo Kawamoto, Osamu Soutome, Yuji Kitano
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Patent number: 6377777Abstract: A fluorine-containing resin-coated pressure roller exhibiting excellent anti-toner soiling characteristic even at low roller temperatures is provided. The pressure roller includes a cylindrical metal substrate, and a rubber elastic layer, an adhesive layer and a fluorine-containing resin release layer disposed in this order on and successively coating the cylindrical metal substrate. The pressure roller has a surface exhibiting a micro-rubber hardness of at most 50 deg., a contact angle with water of at least 105 deg. and a ten point-average surface roughness Rz of at most 3.0 &mgr;m. The pressure roller may be suitably combined with a fixing film to provide a film heating-type fixing device suitably used in an electrophotographic image forming apparatus.Type: GrantFiled: February 18, 2000Date of Patent: April 23, 2002Assignee: Canon Kabushiki KaishaInventors: Kazuo Kishino, Yasumasa Ohtsuka, Toshihiko Ochiai, Masaaki Takahashi, Akira Hayakawa, Hideo Kawamoto, Mahito Yoshioka, Osamu Soutome, Kenji Karashima, Yuji Kitano
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Patent number: 6363236Abstract: A blade for regulating the amount of a release oil to be supplied is placed so as to abut on a fixing member or on a member for controlling the amount of the release oil to be supplied to the fixing member. The abutting surface of the blade is composed of a silicone rubber layer. Alternatively, the blade includes a plate-shaped elastic body and a silicone rubber layer formed on the tip of the elastic body. A fixing device including the blade and an image-forming apparatus including the fixing device are also disclosed.Type: GrantFiled: July 24, 2000Date of Patent: March 26, 2002Assignee: Canon Kabushiki KaishaInventors: Jiro Ishizuka, Kazuo Kishino, Masaaki Takahashi, Hideo Kawamoto, Mitsuhiro Ota, Osamu Soutome, Yuji Kitano
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Publication number: 20020028736Abstract: The present invention provides an elastic body having a small volume change caused by the change in temperature, a roller having a small change in outer diameter thereof caused by an increase in temperature of the roller during operation, a manufacturing method therefor, and a heating and fixing device which can maintain a constant processing speed. The roller has an elastic layer formed by curing a silicone rubber material containing at least expanded resin microballoons, wherein, when the roller is placed in a vacuum chamber in which atmospheric pressure is reduced to 0.001 MPa or less over 2 minutes, the roller has a gas permeability indicating the recovery characteristic where an increased amount of the thickness of the elastic layer after 10 minutes from the start of evacuation is two-thirds or less of the maximum increased amount of the thickness of the elastic layer during a 10 minutes period from the start of evacuation.Type: ApplicationFiled: August 27, 2001Publication date: March 7, 2002Inventors: Kazuo Kishino, Masaaki Takahashi, Hideo Kawamoto, Osamu Soutome, Yuji Kitano
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Publication number: 20020019479Abstract: The invention provides a roll member capable of avoiding a sheet of recording paper from wrinkling. A metal compound MmXn and an inorganic fine powder are added to a silicone rubber layer forming a surface layer of the roll member. In the compound formula, M is a cation selected from among ions of Al, Sc, Cr, Fe, Co, Ni, Cu, Zn and Ga, and X is an anion selected from among ions of halogens, inorganic acids and organic acids.Type: ApplicationFiled: December 28, 1999Publication date: February 14, 2002Inventors: MITSUHIRO OTA, KAZUO KISHINO, JIRO ISHIZUKA, OSAMU SOUTOME
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Patent number: 6321062Abstract: A fixing-unit roller has a fixing roller and/or a pressure roller in which a composite material of an organopolysiloxane and a fluoroelastomer containing no fluorine resin or containing a fluorine resin is used as an elastic material of at least the outermost layer. The composite material has an island-in-sea structure wherein the organopolysiloxane stands as a sea phase and the fluoroelastomer containing no fluorine resin or containing a fluorine resin stands as an island phase. The particles of the island phase have a size ranging from 1 &mgr;m to 10 &mgr;m. The fixing-unit roller has superior toner releasability and superior scratch resistance and wear resistance.Type: GrantFiled: March 7, 2000Date of Patent: November 20, 2001Assignee: Canon Kabushiki KaishaInventors: Yuji Kitano, Kazuo Kishino, Masaaki Takahashi, Hideo Kawamoto, Osamu Soutome
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Patent number: 5966578Abstract: A heat-pressure fixing device for fixing a toner image is composed of a fixing member, a pressure member and an oil applicator for applying dimethylsilicone oil as a release oil. The fixing member is surfaced with dimethylsilicone rubber having a storage modulus E' satisfying 1.0.times.10.sup.6 dyn/cm.sup.2 <E'<1.5.times.10.sup.7 dyn/cm.sup.2 and a loss modulus E" satisfying 1.0.times.10.sup.5 dyn/cm.sup.2 <E"<7.5.times.10.sup.5 dyn/cm.sup.2, and exhibits a good release performance at a low dimethylsilicone oil application rate of 1-20 mg/A4-size (621 cm.sup.2).Type: GrantFiled: July 27, 1998Date of Patent: October 12, 1999Assignee: Canon Kabushiki KaishaInventors: Osamu Soutome, Kazuo Kishino, Masaaki Takahashi, Jiro Ishizuka, Hideo Kawamoto, Mitsuhiro Ohta