Patents by Inventor Syuichi Watanabe
Syuichi Watanabe 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: 6819904Abstract: An image heating device having a predetermined amount of heat generation with a small electric current. The device includes a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted for allowing the heat-generating roller (1) to generate heat with electromagnetic induction. The exciting coil (5) is composed of a bundle of 60 copper wires of a 0.2 mm diameter are extended in the direction of the rotation axis of the heat-generating roller (1) and they are circumferentially wound along the circumferential direction of the heat-generating roller (1). The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller (1) so as to cover the upper half of the heat-generating roller (1).Type: GrantFiled: October 15, 2003Date of Patent: November 16, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Terada, Masaru Imai, Hideki Tatematsu, Akinori Toyoda, Kenji Asakura, Syuichi Watanabe
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Patent number: 6757513Abstract: An image heating device having a predetermined amount of heat generation with a small electric current. The device comprises a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted for allowing the heat-generating roller (1) to generate heat with electromagnetic induction. The exciting coil (5) is composed of a bundle of 60 copper wires of a 0.2 mm diameter are extended in the direction of the rotation axis of the heat-generating roller (1) and they are circumferentially wound along the circumferential direction of the heat-generating roller (1). The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller (1) so as to cover the upper half of the heat-generating roller (1).Type: GrantFiled: March 6, 2003Date of Patent: June 29, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Terada, Masaru Imai, Hideki Tatematsu, Akinori Toyoda, Kenji Asakura, Syuichi Watanabe
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Publication number: 20040081490Abstract: An image heating device having a predetermined amount of heat generation with a small electric current. The device comprises a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted for allowing the heat-generating roller (1) to generate heat with electromagnetic induction. The exciting coil (5) is composed of a bundle of 60 copper wires of a 0.2 mm diameter are extended in the direction of the rotation axis of the heat-generating roller (1) and they are circumferentially wound along the circumferential direction of the heat-generating roller (1). The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller (1) so as to cover the upper half of the heat-generating roller (1).Type: ApplicationFiled: October 15, 2003Publication date: April 29, 2004Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Terada, Masaru Imai, Hideki Tatematsu, Akinori Toyoda, Kenji Asakura, Syuichi Watanabe
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Patent number: 6678498Abstract: An image heating device having a predetermined amount of heat generation with a small electric current. The device includes a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted for allowing the heat-generating roller (1) to generate heat with electromagnetic induction. The exciting coil (5) is composed of a bundle of 60 copper wires of a 0.2 mm diameter are extended in the direction of the rotation axis of the heat-generating roller (1) and they are circumferentially wound along the circumferential direction of the heat-generating roller (1). The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller (1) so as to cover the upper half of the heat-generating roller (1).Type: GrantFiled: March 6, 2003Date of Patent: January 13, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Terada, Masaru Imai, Hideki Tatematsu, Akinori Toyoda, Kenji Asakura, Syuichi Watanabe
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Patent number: 6625417Abstract: An image heating device having a predetermined amount of heat generation with a small electric current. The device has a heat-generating roller having magnetism and conductivity, and an exciting coil opposed to the peripheral face of the heat-generating roller and adapted for allowing the heat-generating roller to generate heat with electromagnetic induction. The exciting coil is composed of a bundle of copper wires extended in the direction of the rotation axis of the heat generating roller. The wires are circumferentially wound along the circumferential direction of the heat-generating roller. The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller so as to cover the upper half of the heat-generating roller.Type: GrantFiled: August 31, 2001Date of Patent: September 23, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Terada, Masaru Imai, Hideki Tatematsu, Akinori Toyoda, Kenji Asakura, Syuichi Watanabe
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Publication number: 20030170055Abstract: An image heating device having a predetermined amount of heat generation with a small electric current. The device comprises a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted for allowing the heat-generating roller (1) to generate heat with electromagnetic induction. The exciting coil (5) is composed of a bundle of 60 copper wires of a 0.2 mm diameter are extended in the direction of the rotation axis of the heat-generating roller (1) and they are circumferentially wound along the circumferential direction of the heat-generating roller (1). The bundled wires are arranged in close contact with each other in the circumferential, direction of the heat-generating roller (1) so as to cover the upper half of the heat-generating roller (1).Type: ApplicationFiled: March 6, 2003Publication date: September 11, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Terada, Masaru Imai, Hideki Tatematsu, Akinori Toyoda, Kenji Asakura, Syuichi Watanabe
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Publication number: 20030152406Abstract: An image heating device having a predetermined amount of heat generation with a small electric current. The device comprises a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted for allowing the heat-generating roller (1) to generate heat with electromagnetic induction. The exciting coil (5) is composed of a bundle of 60 copper wires of a 0.2 mm diameter are extended in the direction of the rotation axis of the heat-generating roller (1) and they are circumferentially wound along the circumferential direction of the heat-generating roller (1). The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller (1) so as to cover the upper half of the heat-generating roller (1).Type: ApplicationFiled: March 6, 2003Publication date: August 14, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Terada, Masaru Imai, Hideki Tatematsu, Akinori Toyoda, Kenji Asakura, Syuichi Watanabe