Patents by Inventor Satoshi Otake
Satoshi Otake 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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Publication number: 20070092702Abstract: The present invention relates to a developer carrying member for carrying a developer having at least a substrate and a resin-coated layer formed on the surface of the substrate. The developer carrying member is the one which carries a one-component developer to visualize the electrostatic latent image carried by the electrostatic latent image carrying member, the resin-coated layer contains at least a binder resin, graphitized particles and roughing particles, the graphitized particles has 0.20 to 0.95 of graphitization degree (p (002)), and wherein in the surface configuration of the resin-coated layer as measured by use of focusing optical laser, the volume (B) of a microtopographical region defined by a certain area (A) of the microtopographical region without convexity formed by the roughing particles meets the following relationship 4.5?B/A?6.5, and the resin-coated layer has 0.9 to 2.5 ?m of arithmetic mean roughness (Ra).Type: ApplicationFiled: November 29, 2006Publication date: April 26, 2007Applicant: Canon Kabushiki KaishaInventors: Masayoshi Shimamura, Kenji Fujishima, Naoki Okamoto, Yasutaka Akashi, Satoshi Otake, Kazunori Saiki, Yasuhide Goseki
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Publication number: 20070090082Abstract: A stopper change device (10) includes an airtight chamber body (21) detachably mountable on a head of a bottle, a gas supply port (19) for supplying N gas to the chamber body, an air vent valve (57) for discharging air from the chamber body, a first supporting structure (28) movable upward and downward for supporting a corkscrew, and a second supporting structure (34) movable upward and downward for containing a substitute stopper. The first and second supporting structures are mutually position changeable, and one of them is selectively placed above an opening of the bottle. When the first supporting structure (28) is placed above the opening, a bottle stopper can be pulled in N gas atmosphere. On the other hand, when the second supporting structure (34) is placed above the opening, the substitute stopper is mountable on the head of the bottle in N gas atmosphere.Type: ApplicationFiled: December 14, 2006Publication date: April 26, 2007Inventors: Eiji Yoshida, Keiichi Yahagi, Hiroyuki Matsunaga, Satoshi Otake, Hiroki Matsumoto, Tatsuro Ishimatsu, Yusuke Yoshida, Kagenori Nagao, Satomi Kudo, Eri Kawaguchi, Ikuo Nakayama, Yuta Ogino, Syotaro Nakajima
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Publication number: 20070036968Abstract: A developer carrying member is provided which, even in continuous copying over a long term and also even under different environmental conditions, do not cause any charge-up of toner, and prevent the toner from melt-adherent to the developer carrying member surface and developer layer thickness control member surface to maintain the state of uniform coating of a developer having a toner and to make the toner uniformly and quickly triboelectrically charged, so as to obtain high-grade images free of any image density decrease, image density non-uniformity, sleeve ghosts, fog and vertical streaks during running service. Provided are a developer carrying member having a substrate and a resin coat layer on the surface of the substrate, which resin coat layer contains at least a binder resin and a carbon black, where the graphite (002) plane obtained from X-ray diffraction of the carbon black has a lattice spacing of from 0.3370 nm or more to 0.Type: ApplicationFiled: October 20, 2006Publication date: February 15, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Masayoshi Shimamura, Yasuhide Goseki, Yasutaka Akashi, Kazunori Saiki, Satoshi Otake, Nene Dojo, Minoru Ito
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Patent number: 7162851Abstract: A stopper change device (10) includes an airtight chamber body (21) detachably mountable on a head of a bottle, a gas supply port (19) for supplying N gas to the chamber body, an air vent valve (57) for discharging air from the chamber body, a first supporting structure (28) movable upward and downward for supporting a corkscrew, and a second supporting structure (34) movable upward and downward for containing a substitute stopper. The first and second supporting structures are mutually position changeable, and one of them is selectively placed above an opening of the bottle. When the first supporting structure (28) is placed above the opening, a bottle stopper can be pulled in N gas atmosphere. On the other hand, when the second supporting structure (34) is placed above the opening, the substitute stopper is mountable on the head of the bottle in N gas atmosphere.Type: GrantFiled: May 10, 2005Date of Patent: January 16, 2007Assignee: Eiji YoshidaInventors: Eiji Yoshida, Keiichi Yahagi, Hiroyuki Matsunaga, Satoshi Otake, Hiroki Matsumoto, Tatsuro Ishimatsu, Yusuke Yoshida, Kagenori Nagao, Satomi Kudo, Eri Kawaguchi, Ikuo Andreas Nakayama, Yuta Ogino, Syotaro Nakajima
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Publication number: 20060275598Abstract: A developer carrier is capable of stably charging a toner over a long term without change in physical surface shape and composition. The developer carrier has at least a substrate and resin coating layer formed on a surface of the substrate. The resin coating layer includes at least graphitized particles (i) with a degree of graphitization p(002) of 0.20 to 0.95 and an indentation hardness HUT [68] of 15 to 60 or graphitized particles (ii) with a degree of graphitization p(002) of 0.20 to 0.95 and an average circularity SF-1 of 0.64 or more.Type: ApplicationFiled: August 11, 2006Publication date: December 7, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Masayoshi Shimamura, Yasuhide Goseki, Yasutaka Akashi, Kenji Fujishima, Kazunori Saiki, Satoshi Otake, Naoki Okamoto
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Publication number: 20060191242Abstract: A stopper change device (10) includes an airtight chamber body (21) detachably mountable on a head of a bottle, a gas supply port (19) for supplying N gas to the chamber body, an air vent valve (57) for discharging air from the chamber body, a first supporting structure (28) movable upward and downward for supporting a corkscrew, and a second supporting structure (34) movable upward and downward for containing a substitute stopper. The first and second supporting structures are mutually position changeable, and one of them is selectively placed above an opening of the bottle. When the first supporting structure (28) is placed above the opening, a bottle stopper can be pulled in N gas atmosphere. On the other hand, when the second supporting structure (34) is placed above the opening, the substitute stopper is mountable on the head of the bottle in N gas atmosphere.Type: ApplicationFiled: February 8, 2006Publication date: August 31, 2006Inventors: Eiji Yoshida, Keiichi Yahagi, Hiroyuki Matsunaga, Satoshi Otake, Hiroki Matsumoto, Tatsuro Ishimatsu, Yusuke Yoshida, Kagenori Nagao, Satomi Kudo, Eri Kawaguchi, Ikuo Nakayama, Yuta Ogino, Syotaro Nakajima
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Patent number: 7032364Abstract: A stopper change device (10) includes an airtight chamber body (21) detachably mountable on a head of a bottle, a gas supply port (19) for supplying N gas to the chamber body, an air vent valve (57) for discharging air from the chamber body, a first supporting structure (28) movable upward and downward for supporting a corkscrew, and a second supporting structure (34) movable upward and downward for containing a substitute stopper. The first and second supporting structures are mutually position changeable, and one of them is selectively placed above an opening of the bottle. When the first supporting structure (28) is placed above the opening, a bottle stopper can be pulled in N gas atmosphere. On the other hand, when the second supporting structure (34) is placed above the opening, the substitute stopper is mountable on the head of the bottle in N gas atmosphere.Type: GrantFiled: May 23, 2003Date of Patent: April 25, 2006Inventors: Eiji Yoshida, Keiichi Yahagi, Hiroyuki Matsunaga, Satoshi Otake, Hiroki Matsumoto, Tatsuro Ishimatsu, Yusuke Yoshida, Kagenori Nagao, Satomi Kudo, Eri Kawaguchi, Ikuo Andreas Nakayama, Yuta Ogino, Syotaro Nakajima
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Publication number: 20050230414Abstract: A fluid extracting device is structured to be capable of extracting only a predetermined amount of a fluid such as wine or the like while a deterioration preventive gas is being supplied to a bottle B and the fluid extracting device (60), which are coupled to each other in an airtight state. Consequently, the partial extraction in a plurality of operations is made possible without causing quality deterioration of the fluid such as wine or the like even after the bottle is once opened. Further, such a structure is provided that the fluid extracting devices (60) having a large number of bottles of wine or the like attached thereto are mounted on a display table at a wine bar or the like.Type: ApplicationFiled: May 23, 2003Publication date: October 20, 2005Applicant: Eiji Yoshida c/o EVERYDAYWINE CO., LTDInventors: Eiji Yoshida, Keiichi Yahagi, Hiroyuki Matsunaga, Satoshi Otake, Hiroki Matsumoto, Tatsuro Ishimatsu, Yusuke Yoshida, Kagenori Nagao, Satomi Kudo, Eri Kawaguchi, Ikuo Nakayama, Yuta Ogino, Syotaro Nakajima
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Publication number: 20050204704Abstract: A stopper change device (10) includes an airtight chamber body (21) detachably mountable on a head of a bottle, a gas supply port (19) for supplying N gas to the chamber body, an air vent valve (57) for discharging air from the chamber body, a first supporting structure (28) movable upward and downward for supporting a corkscrew, and a second supporting structure (34) movable upward and downward for containing a substitute stopper. The first and second supporting structures are mutually position changeable, and one of them is selectively placed above an opening of the bottle. When the first supporting structure (28) is placed above the opening, a bottle stopper can be pulled in N gas atmosphere. On the other hand, when the second supporting structure (34) is placed above the opening, the substitute stopper is mountable on the head of the bottle in N gas atmosphere.Type: ApplicationFiled: May 10, 2005Publication date: September 22, 2005Inventors: Eiji Yoshida, Keiichi Yahagi, Hiroyuki Matsunaga, Satoshi Otake, Hiroki Matsumoto, Tatsuro Ishimatsu, Yusuke Yoshida, Kagenori Nagao, Satomi Kudo, Eri Kawaguchi, Ikuo Nakayama, Yuta Ogino, Syotaro Nakajima
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Patent number: 6924076Abstract: In a developing assembly, a process cartridge and an image-forming method, a specific developer and a specific developer-carrying member are used in combination. The developer comprises toner particles containing at least a binder resin and a colorant, and conductive fine particles; the toner particles having a Circularity a of less than 0.970 as found from the following expression: Circularity a=L0/L where L0 represents the circumferential length of a circle having the same projected area as a particle image, and L represents the circumferential length of a projected image of a particle. The developer-carrying member has at least a substrate and a resin coat layer formed on the substrate; the resin coat layer containing at least a coat layer binder resin and a positively chargeable material.Type: GrantFiled: August 15, 2002Date of Patent: August 2, 2005Assignee: Canon Kabushiki KaishaInventors: Kazunori Saiki, Yasuhide Goseki, Masayoshi Shimamura, Yasutaka Akashi, Kenji Fujishima, Satoshi Otake, Naoki Okamoto
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Publication number: 20050095038Abstract: In a developer carrying member used in a developing apparatus by means of which an electrostatic latent image formed on an electrostatic latent image bearing member is developed with a developer to render it visible, the developer carrying member has at least a substrate and a resin coat layer formed on the substrate surface, and the resin coat layer contains at least a binder resin and graphitized particles. The surface of the resin coat layer has an average value A and a standard deviation ? of 100?A?800 (N/mm2) and ?<30 (N/mm2), respectively.Type: ApplicationFiled: June 22, 2004Publication date: May 5, 2005Applicant: Canon Kabushiki KaishaInventors: Naoki Okamoto, Yasuhide Goseki, Masayoshi Shimamura, Yasutaka Akashi, Kazunori Saiki, Kenji Fujishima, Satoshi Otake
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Patent number: 6873816Abstract: A developing assembly is disclosed having at least a developer container, a developer-carrying member and a developer layer thickness regulation member, wherein the developer is composed mainly of toner particles containing at least a binder resin and a colorant, and conductive fine particles, and the developer-carrying member has a substrate and a surface layer formed on the substrate of a non-magnetic metal, an alloy or a metallic compound. This developing assembly causes no sleeve ghost, enables electrostatic latent images to be faithfully developed, causes no fading phenomenon, and enables high-density images to be formed in every environment. Also disclosed are a process cartridge having the developing assembly and the latent-image-bearing member integrally set as one unit detachably mountable on the main body of an image-forming apparatus, and an image-forming method making use of the features of this developing assembly.Type: GrantFiled: August 16, 2002Date of Patent: March 29, 2005Assignee: Canon Kabushiki KaishaInventors: Yasutaka Akashi, Yasuhide Goseki, Masayoshi Shimamura, Kenji Fujishima, Kazunori Saiki, Satoshi Otake, Naoki Okamoto
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Publication number: 20050048269Abstract: The present invention relates to a developer carrying member for carrying a developer having at least a substrate and a resin-coated layer formed on the surface of the substrate. The developer carrying member is the one which carries a one-component developer to visualize the electrostatic latent image carried by the electrostatic latent image carrying member, the resin-coated layer contains at least a binder resin, graphitized particles and roughing particles, the graphitized particles has 0.20 to 0.95 of graphitization degree (p (002)), and wherein in the surface configuration of the resin-coated layer as measured by use of focusing optical laser, the volume (B) of a microtopographical region defined by a certain area (A) of the microtopographical region without convexity formed by the roughing particles meets the following relationship 4.5?B/A?6.5, and the resin-coated layer has 0.9 to 2.5 ?m of arithmetic mean roughness (Ra).Type: ApplicationFiled: May 26, 2004Publication date: March 3, 2005Applicant: Canon Kabushiki KaishaInventors: Masayoshi Shimamura, Kenji Fujishima, Naoki Okamoto, Yasutaka Akashi, Satoshi Otake, Kazunori Saiki, Yasuhide Goseki
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Publication number: 20050016129Abstract: A stopper change device (10) includes an airtight chamber body (21) detachably mountable on a head of a bottle, a gas supply port (19) for supplying N gas to the chamber body, an air vent valve (57) for discharging air from the chamber body, a first supporting structure (28) movable upward and downward for supporting a corkscrew, and a second supporting structure (34) movable upward and downward for containing a substitute stopper. The first and second supporting structures are mutually position changeable, and one of them is selectively placed above an opening of the bottle. When the first supporting structure (28) is placed above the opening, a bottle stopper can be pulled in N gas atmosphere. On the other hand, when the second supporting structure (34) is placed above the opening, the substitute stopper is mountable on the head of the bottle in N gas atmosphere.Type: ApplicationFiled: May 23, 2003Publication date: January 27, 2005Inventors: Eiji Yoshida, Keiichi Yahagi, Hiroyuki Matsunaga, Satoshi Otake, Hiroki Matsumoto, Tatsuro Ishimatsu, Yusuke Yoshida, Kagenori Nagao, Satomi Kudo, Eri Kawaguchi, Ikuo Nakayama, Yuta Ogino, Syotaro Nakajima
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Patent number: 6841327Abstract: In a developing assembly including a two-component developer container and a developer-carrying member, the developer-carrying member has at least a substrate and a resin coat layer formed on the substrate surface, and the resin-coat layer contains at least a binder resin and solid particles for making the resin-coat-layer surface uneven. The solid particles have an average circularity of 0.64 or more, which is the average value of the values calculated according to the equation Circularity=(4×A)/{(ML)2×?}, (wherein ML represents the Pythagorean-method maximum length of a particle projected image, and A represents the projected area of a particle image), and the resin-coat layer has a surface roughness fulfilling specific conditions attributable to the solid particles. Also disclosed are an image-forming apparatus and a process cartridge which employ the developing assembly.Type: GrantFiled: October 29, 2002Date of Patent: January 11, 2005Assignee: Canon Kabushiki KaishaInventors: Satoshi Otake, Yasuhide Goseki, Masayoshi Shimamura, Yasutaka Akashi, Kenji Fujishima, Kazunori Saiki, Naoki Okamoto
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Patent number: 6687476Abstract: A used developer-carrying member having a resin coating layer on a substrate is regenerated through a step of scraping the resin coating layer of the used developer-carrying member to form a developer-carrying member surface having unevenness showing a central line-average roughness Ra of at most 0.8 &mgr;m, and a step of coating the developer-carrying member surface having the unevenness with a coating layer of a resinous composition comprising at least a binder resin and electroconductive fine powder. The regenerated developer-carrying member can be reinstalled in a developing apparatus and subjected to repetitive electrophotographic image forming cycles.Type: GrantFiled: January 14, 2002Date of Patent: February 3, 2004Assignee: Canon Kabushiki KaishaInventors: Yasuhide Goseki, Masayoshi Shimamura, Yasutaka Akashi, Kenji Fujishima, Kazunori Saiki, Satoshi Otake, Naoki Okamoto
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Publication number: 20030232185Abstract: A developer carrier is provided which is capable of stably imparting charging to a toner over a long term without change of a physical shape of its surface, material composition, and the like even in endurable use and which is capable of forming a satisfactory image while avoiding the occurrence of toner contamination and toner charge-up. That is, the developer carrier is characterized in that: it comprises at least a substrate and a resin coating layer formed on a surface of the substrate; and the resin coating layer comprises at least graphitized particles (i) with a degree of graphitization p(002) of 0.20 to 0.95 and an indentation hardness HUT [68] of 15 to 60 or graphitized particles (ii) with a degree of graphitization p(002) of 0.20 to 0.95 and an average circularity SF-1 of 0.64 or more.Type: ApplicationFiled: May 7, 2003Publication date: December 18, 2003Inventors: Masayoshi Shimamura, Yasuhide Goseki, Yasutaka Akashi, Kenji Fujishima, Kazunori Saiki, Satoshi Otake, Naoki Okamoto
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Publication number: 20030215731Abstract: In a developing assembly, a process cartridge and an image-forming method, a specific developer and a specific developer-carrying member are used in combination. The developer comprises toner particles containing at least a binder resin and a colorant, and conductive fine particles; the toner particles having a Circularity a of less than 0.Type: ApplicationFiled: August 15, 2002Publication date: November 20, 2003Applicant: Canon Kabushiki KaishaInventors: Kazunori Saiki, Yasuhide Goseki, Masayoshi Shimamura, Yasutaka Akashi, Kenji Fujishima, Satoshi Otake, Naoki Okamoto
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Publication number: 20030147674Abstract: In a developing assembly including a two-component developer container and a developer-carrying member, the developer-carrying member has at least a substrate and a resin coat layer formed on the substrate surface, and the resin coat layer contains at least a binder resin and solid particles for making the resin coat layer surface uneven. The solid particles satisfying an average circularity of 0.Type: ApplicationFiled: October 29, 2002Publication date: August 7, 2003Applicant: CANON KABUSHIKI KAISHAInventors: Satoshi Otake, Yasuhide Goseki, Masayoshi Shimamura, Yasutaka Akashi, Kenji Fujishima, Kazunori Saiki, Naoki Okamoto
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Publication number: 20030123909Abstract: A developing assembly is disclosed having at least a developer container, a developer-carrying member and a developer layer thickness regulation member, wherein the developer is composed mainly of toner particles containing at least a binder resin and a colorant, and conductive fine particles, and the developer-carrying member has a substrate and a surface layer formed on the substrate of a non-magnetic metal, an alloy or a metallic compound. This developing assembly causes no sleeve ghost, enables electrostatic latent images to be faithfully developed, causes no fading phenomenon, and enables high-density images to be formed in every environment. Also disclosed are a process cartridge having the developing assembly and the latent-image-bearing member integrally set as one unit detachably mountable on the main body of an image-forming apparatus, and an image-forming method making use of the features of this developing assembly.Type: ApplicationFiled: August 16, 2002Publication date: July 3, 2003Applicant: Canon Kabushiki KaishaInventors: Yasutaka Akashi, Yasuhide Goseki, Masayoshi Shimamura, Kenji Fujishima, Kazunori Saiki, Satoshi Otake, Naoki Okamoto