Patents by Inventor Yoshiaki Sanada
Yoshiaki Sanada 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: 7554191Abstract: A heatsink plate is to be fixed to a substrate with sufficient strength, so as to prevent the heatsink plate from being stripped off, to thereby secure reliability on the performance of the semiconductor chip. The heatsink plate has both the upper and lower surfaces of the fixing section sandwiched by an adhesive resin. Such structure provides an increased adhesion area between the heatsink plate and the upper surface of the substrate, thereby securing greater fixing strength compared with the conventional structure in which simply the lower surface of the heatsink plate and the upper surface of the substrate are adhered to each other. Accordingly, the heatsink plate can be fixed to the upper surface of substrate with greater strength.Type: GrantFiled: January 3, 2007Date of Patent: June 30, 2009Assignee: NEC Electronics CorporationInventors: Teruji Inomata, Yoshiaki Sanada
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Publication number: 20090023252Abstract: A heatsink plate is to be fixed to a substrate with sufficient strength, so as to prevent the heatsink plate from being stripped off, to thereby secure reliability on the performance of the semiconductor chip. The heatsink plate has both the upper and lower surfaces of the fixing section sandwiched by an adhesive resin. Such structure provides an increased adhesion area between the heatsink plate and the upper surface of the substrate, thereby securing greater fixing strength compared with the conventional structure in which simply the lower surface of the heatsink plate and the upper surface of the substrate are adhered to each other. Accordingly, the heatsink plate can be fixed to the upper surface of substrate with greater strength.Type: ApplicationFiled: September 22, 2008Publication date: January 22, 2009Applicant: NEC ELECTRONICS CORPORATIONInventors: Teruji Inomata, Yoshiaki Sanada
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Patent number: 7471916Abstract: In a developer-storing container of the present invention, an agitation blade used in a toner-storing section and an agitation blade used in a waste-toner-storing section are coupled by a rotor. The rotor is interdigitated to a bearing mounted on a partition wall. The partition wall is made to be a fixed wall so that precision of interdigitation of the agitation blade of the toner-storing section, the rotor, and the agitation blade of the waste-toner-storing section is improved. Consequently, a developer-storing container that is easy to assemble and in which precision of interdigitation is high is realized.Type: GrantFiled: September 23, 2005Date of Patent: December 30, 2008Assignee: Sharp Kabushiki KaishaInventors: Yoshiaki Sanada, Hisashi Kunihiro, Koichi Mihara
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Patent number: 7424954Abstract: A packing case for an image forming apparatus that includes: a first packing member 5 for packing an image forming apparatus main body 1 including a reading section 11 having a scanner unit, an image forming section 14 having an image forming unit 12, and a sheet feed unit 13 for feeding a sheet to the image forming unit 12, and a sheet storage space 16, formed to be open to outside between the reading section 11 and the image forming section 14, for storing a sheet transported from the image forming unit 12; and a second packing member 4 for packing a toner cartridge 2 and capable of being inserted into and removed from the image forming apparatus main body 1, in which the second packing member 4 is inserted and fixed in the sheet storage space 16.Type: GrantFiled: March 20, 2007Date of Patent: September 16, 2008Assignee: Sharp Kabushiki KaishaInventors: Yoshinori Otsuka, Yoshiaki Sanada, Kouichi Mihara, Haruko Yoneda
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Publication number: 20070187283Abstract: A packing case for an image forming apparatus that includes: a first packing member 5 for packing an image forming apparatus main body 1 including a reading section 11 having a scanner unit, an image forming section 14 having an image forming unit 12, and a sheet feed unit 13 for feeding a sheet to the image forming unit 12, and a sheet storage space 16, formed to be open to outside between the reading section 11 and the image forming section 14, for storing a sheet transported from the image forming unit 12; and a second packing member 4 for packing a toner cartridge 2 and capable of being inserted into and removed from the image forming apparatus main body 1, in which the second packing member 4 is inserted and fixed in the sheet storage space 16.Type: ApplicationFiled: March 20, 2007Publication date: August 16, 2007Inventors: Yoshinori Otsuka, Yoshiaki Sanada, Kouichi Mihara, Haruko Yoneda
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Publication number: 20070152322Abstract: A heatsink plate is to be fixed to a substrate with sufficient strength, so as to prevent the heatsink plate from being stripped off, to thereby secure reliability on the performance of the semiconductor chip. The heatsink plate has both the upper and lower surfaces of the fixing section sandwiched by an adhesive resin. Such structure provides an increased adhesion area between the heatsink plate and the upper surface of the substrate, thereby securing greater fixing strength compared with the conventional structure in which simply the lower surface of the heatsink plate and the upper surface of the substrate are adhered to each other. Accordingly, the heatsink plate can be fixed to the upper surface of substrate with greater strength.Type: ApplicationFiled: January 3, 2007Publication date: July 5, 2007Applicant: NEC ELECTRONICS CORPORATIONInventors: Teruji Inomata, Yoshiaki Sanada
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Patent number: 7198155Abstract: A packing case for an image forming apparatus that includes: a first packing member 5 for packing an image forming apparatus main body 1 including a reading section 11 having a scanner unit, an image forming section 14 having an image forming unit 12, and a sheet feed unit 13 for feeding a sheet to the image forming unit 12, and a sheet storage space 16, formed to be open to outside between the reading section 11 and the image forming section 14, for storing a sheet transported from the image forming unit 12; and a second packing member 4 for packing a toner cartridge 2 capable of being inserted into and removed from the image forming apparatus main body 1, in which the second packing member 4 is inserted and fixed in the sheet storage space 16.Type: GrantFiled: May 7, 2003Date of Patent: April 3, 2007Assignee: Sharp Kabushiki KaishaInventors: Yoshinori Otsuka, Yoshiaki Sanada, Kouichi Mihara, Haruko Yoneda
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Publication number: 20060067735Abstract: In a developer-storing container of the present invention, an agitation blade used in a toner-storing section and an agitation blade used in a waste-toner-storing section are coupled by a rotor. The rotor is interdigitated to a bearing mounted on a partition wall. The partition wall is made to be a fixed wall so that precision of interdigitation of the agitation blade of the toner-storing section, the rotor, and the agitation blade of the waste-toner-storing section is improved. Consequently, a developer-storing container that is easy to assemble and in which precision of interdigitation is high is realized.Type: ApplicationFiled: September 23, 2005Publication date: March 30, 2006Applicant: SHARP KABUSHIKI KAISHAInventors: Yoshiaki Sanada, Hisashi Kunihiro, Koichi Mihara
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Patent number: 6711374Abstract: An image apparatus includes a cartridge with two separate accommodating portions. The first accommodating portion for accommodating unused developer and is formed in a housing. A second accommodating portion for accommodating transfer residual developer is arranged adjacent to the first accommodating portion. A conveying member extending over the first and second accommodating portions, when an amount of transfer residual developer to be stored in the second accommodating portion exceeds a predetermined level, conveys the transfer residual developer from the second accommodating portion to the first accommodating portion. Each one of the accommodating portions includes an agitator.Type: GrantFiled: February 15, 2002Date of Patent: March 23, 2004Assignee: Sharp Kabushiki KaishaInventors: Naotaka Funayama, Jun Yamaguchi, Yoshiaki Sanada, Tsutomu Nagata
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Publication number: 20030209464Abstract: A packing case for an image forming apparatus, comprising: a first packing member 5 for packing an image forming apparatus main body 1 including a reading section 11 having a scanner unit for reading a document image, an image forming section 14 having an image forming unit 12 for forming an image according to image data and a sheet feed unit 13 for feeding a sheet to the image forming unit 12, and a sheet storage space 16, formed to be open to outside between the reading section 11 and the image forming section 14, for storing a sheet transported from the image forming unit 12; and a second packing member 4 for packing a toner cartridge 2 containing toner to be supplied to the image forming unit 12 and capable of being inserted into and removed from the image forming apparatus main body 1, in which the second packing member 4 is inserted and fixed in the sheet storage space 16. This packing case enables a decrease in the overall size of the packing case and a reduction in the cost of the packing case.Type: ApplicationFiled: May 7, 2003Publication date: November 13, 2003Inventors: Yoshinori Otsuka, Yoshiaki Sanada, Kouichi Mihara, Haruko Yoneda
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Patent number: 6603940Abstract: A process cartridge includes a toner unit including a toner containing space and a toner supply space. A development unit including rollers. There is a holding frame having a fixture section for the development unit and an accepting section for the toner unit. The process cartridge is constructed arrangement in which the toner is fixed in a predetermined position in the accepting section of the holding frame or which the toner unit is detachably installed in a predetermined position in the accepting section of the holding frame.Type: GrantFiled: November 6, 2001Date of Patent: August 5, 2003Assignee: Sharp Kabushiki KaishaInventors: Naotaka Funayama, Jun Yamaguchi, Yoshiaki Sanada, Tsutomu Nagata, Takahiko Kimura
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Patent number: 6567631Abstract: A toner cartridge includes: a toner storage chamber; a toner collecting chamber; a partitioning wall for separating these chambers; a cylindrical return pipe penetrating through the partitioning wall with a conveyer screw arranged therein and is configured so that when the amount of untransferred toner collected into the toner collecting chamber exceeds the height of the return pipe, the untransferred toner is conveyed by the rotation of the conveyer screw to be returned into the toner storage chamber.Type: GrantFiled: November 15, 2001Date of Patent: May 20, 2003Assignee: Sharp Kabushiki KaishaInventors: Naotaka Funayama, Jun Yamaguchi, Yoshiaki Sanada, Tsutomu Nagata, Takahiko Kimura
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Publication number: 20020154914Abstract: An object of the invention is to make it possible to convey developer from a transfer residual developer accommodating portion to an unused developer accommodating portion without the transfer residual developer accommodating portion being increased in size more than necessary. A first accommodating portion for accommodating unused developer is formed in a housing. A second accommodating portion for accommodating transfer residual developer is arranged adjacent to the first accommodating portion. A conveying member extending over the first and second accommodating portions, when an amount of transfer residual developer to be stored in the second accommodating portion exceeds a predetermined level, conveys the transfer residual developer from the second accommodating portion to the first accommodating portion.Type: ApplicationFiled: February 15, 2002Publication date: October 24, 2002Inventors: Naotaka Funayama, Jun Yamaguchi, Yoshiaki Sanada, Tsutomu Nagata
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Patent number: 6421517Abstract: The length of a conveying sheet is set to be greater than the rotational radius of an agitating element so that the distal end of the conveying sheet will slide over the inner wall of the toner container. A slider element having a low frictional resistance is attached at the distal end of the conveying sheet. The slider element preferably has a low coefficient of dynamic friction and is preferably made of a soft resilient material having a thickness smaller than the conveying sheet. Cutouts or openings may be preferably formed at the distal part. A multiple number of ribs are attached to the wall surface of the toner container at the highest position at which the wall and the top plate meet. The ribs are arranged apart from each other in the direction parallel to the agitating shaft of the agitating element. Each rib is a plate-like element projected inward from the wall surface in the toner container with its width put in the direction of the spacing.Type: GrantFiled: June 6, 2001Date of Patent: July 16, 2002Assignee: Sharp Kabushiki KaishaInventors: Toshio Nishino, Yasuyuki Ishiguro, Masatoshi Kaneshige, Hiroshi Tanisawa, Haruko Yoneda, Jun Yamaguchi, Akira Nakakuma, Naotaka Funayama, Tsutomu Nagata, Yoshiaki Sanada
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Publication number: 20020064395Abstract: A toner cartridge includes: a toner storage chamber; a toner collecting chamber; a partitioning wall for separating these chambers; a cylindrical return pipe penetrating through the partitioning wall with a conveyer screw arranged therein and is configured so that when the amount of untransferred toner collected into the toner collecting chamber exceeds the height of the return pipe, the untransferred toner is conveyed by the rotation of the conveyer screw to be returned into the toner storage chamber.Type: ApplicationFiled: November 15, 2001Publication date: May 30, 2002Inventors: Naotaka Funayama, Jun Yamaguchi, Yoshiaki Sanada, Tsutomu Nagata, Takahiko Kimura
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Publication number: 20020048467Abstract: A process cartridge of the present invention includes a toner unit including a toner containing space and a toner supply section; a development unit including a developing device; and a holding frame having a fixture section for the development unit and an accepting section for the toner unit. Moreover, the process cartridge of the present invention is constructed selectively in a first arrangement in which the toner unit is fixed in a predetermined position in the accepting section of the holding frame or in a second arrangement in which the toner unit is detachably installed in the predetermined position.Type: ApplicationFiled: November 6, 2001Publication date: April 25, 2002Inventors: Naotaka Funayama, Jun Yamaguchi, Yoshiaki Sanada, Tsutomu Nagata, Takahiko Kimura
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Patent number: 6226490Abstract: To solve problems that the amount of reuse toner increases with time recovery of reuse toner is efficiently achieved while forming an image of high quality. In a toner replenishing apparatus, toner recovered by a cleaning unit is conveyed via conveying device and contained in a recovery toner container. When an amount of the recovery toner exceeds a predetermined capacity of the recovery toner container, the recovery toner flows into a fresh toner container over an upper edge of a partition wall. Fresh toner and recovery toner are replenished to a developing unit via a fresh toner replenishing roller and a recovery toner replenishing roller, respectively, and the ratio between fresh toner and recovery toner is selected so that the fresh toner occupies a larger part than the recovery toner. This ratio is controlled on the basis of the cumulative rotation time of a photoconductor drum counted by a counting device.Type: GrantFiled: July 23, 1999Date of Patent: May 1, 2001Assignee: Sharp Kabushiki KaishaInventors: Syouichi Fujita, Itaru Kawabata, Hideji Saiko, Hirofumi Sakita, Masato Asanuma, Kouichi Takenouchi, Yoshiaki Sanada, Yasuyuki Ishiguro
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Patent number: D522565Type: GrantFiled: March 28, 2005Date of Patent: June 6, 2006Assignee: Sharp Kabushiki KaishaInventors: Yoshiaki Sanada, Masatoshi Kaneshige, Kohichi Mihara, Hisashi Kunihiro, Haruko Yoneda
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Patent number: D462713Type: GrantFiled: September 14, 2001Date of Patent: September 10, 2002Assignee: Sharp Kabushiki KaishaInventors: Naotaka Funayama, Jun Yamaguchi, Tsutomu Nagata, Yoshiaki Sanada, Takahiko Kimura
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Patent number: D464079Type: GrantFiled: September 14, 2001Date of Patent: October 8, 2002Assignee: Sharp Kabushiki KaishaInventors: Naotaka Funayama, Jun Yamaguchi, Tsutomu Nagata, Yoshiaki Sanada, Takahiko Kimura