Patents by Inventor Tamaki Wada
Tamaki Wada 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: 20100025480Abstract: A technique for an IC capable of achieving the large expandability of the memory capacity, a memory capacity and cost burden in accordance with the requirements of users is provided. The IC card of the present invention is a flash memory card 306 mounted with a flash memory, characterized in that the flash memory card 306 can be inserted into a Plug-in SIM adaptor 305a and/or a mini UICC adaptor 305b each mounted with a secure IC, the flash memory card 306 is inserted into the Plug-in SIM adaptor 305a or the mini UICC adaptor 305b, thereby operating as a SIM attached with an expansion memory or a mini UICC attached with an expansion memory, and the flash memory card 306 can be physically removed from the Plug-in SIM adaptor 305a or the mini UICC adaptor 305b.Type: ApplicationFiled: March 30, 2007Publication date: February 4, 2010Inventors: Hirotaka Nishizawa, Junichiro Osako, Hironori Iwasaki, Hideo Koike, Tamaki Wada, Takashi Totsuka
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Patent number: 7656014Abstract: A process yield of a semiconductor device is enhanced. To that end, there is provided a semiconductor device comprising a substrate having a component mount face with semiconductor chips mounted thereon, the substrate being provided with a plurality of connection leads, and a cap made of resin, placed over the component mount face of the substrate so as to cover the same, the a cap having a first body part, and a second body part larger in thickness than the first body part. Because product information in the form of inscriptions is engraved on the top surface side of the second body part of the cap, the product information can be displayed without the use of an ink mark, it is possible to prevent occurrence of marking defects due to ink bleed, and so forth, thereby enhancing the process yield of a memory card (the semiconductor device).Type: GrantFiled: July 18, 2007Date of Patent: February 2, 2010Assignee: Renesas Technology Corp.Inventors: Yoshiyuki Tanigawa, Tamaki Wada
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Patent number: 7646085Abstract: A semiconductor device includes external interface terminals and processing circuits, and it is fed with an operating power source when detachably set in a host equipment. Power source feeding terminals (VCC, VSS) among the external interface terminals are long enough to keep touching the corresponding terminals of the host equipment for, at least, a predetermined time period since the separation of an extraction detecting terminal among the external interface terminals, from the corresponding terminal of the host equipment, and they are formed to be longer in the extraction direction of the semiconductor device than the extraction detecting terminal. Thus, a time period till the cutoff of the power source is easily made comparatively long. The power source feeding terminals should preferably be extended onto the insertion side of the semiconductor device, but an extendible distance is sometimes liable to be limited.Type: GrantFiled: September 24, 2004Date of Patent: January 12, 2010Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Kenji Osawa, Hideo Koike, Junichiro Osako, Tamaki Wada
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Publication number: 20090283885Abstract: On an adapter mounting portion 3a having a projecting cross section which is formed on a cap 3 of a small-sized memory card 1, a recessed portion of an adapter 2 side is fitted so that both parts are formed as an integral unit in a replaceable manner. Accordingly, the small-sized memory card 1 can maintain the dimensional compatibility with respect to existing memory cards whereby the small-sized memory card 1 can be used also in equipment which is designed to cope with the existing memory cards.Type: ApplicationFiled: July 23, 2009Publication date: November 19, 2009Inventors: Tamaki Wada, Hirotaka Nishizawa, Masachika Masuda, Kenji Osawa, Junichiro Osako, Satoshi Hatakeyama, Haruji Ishihara, Kazuo Yoshizaki, Kazunori Furusawa
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Patent number: 7549593Abstract: A semiconductor device includes external interface terminals and processing circuits, and it is fed with an operating power source when detachably set in a host equipment. Power source feeding terminals (VCC, VSS) among the external interface terminals are long enough to keep touching the corresponding terminals of the host equipment for, at least, a predetermined time period since the separation of an extraction detecting terminal among the external interface terminals, from the corresponding terminal of the host equipment, and they are formed to be longer in the extraction direction of the semiconductor device than the extraction detecting terminal. The processing circuits include an interface control circuit (2) which is connected to the external interface terminals, and a rewritable nonvolatile memory (3) which is controlled by the interface control circuit. The nonvolatile memory stores information on the basis of the difference of the threshold voltages of memory cells.Type: GrantFiled: September 24, 2004Date of Patent: June 23, 2009Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Kenji Osawa, Hideo Koike, Junichiro Osako, Tamaki Wada
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Patent number: 7543757Abstract: A semiconductor device includes external interface terminals and processing circuits, and it is fed with an operating power source when detachably set in a host equipment. Power source feeding terminals (VCC, VSS) among the external interface terminals are long enough to keep touching the corresponding terminals of the host equipment for, at least, a predetermined time period since the separation of an extraction detecting terminal among the external interface terminals, from the corresponding terminal of the host equipment, and they are formed to be longer in the extraction direction of the semiconductor device than the extraction detecting terminal. These power source feeding terminals are a power source terminal and a ground terminal, and any power source compensating capacitor is not connected between the power source terminal and the ground terminal.Type: GrantFiled: March 4, 2008Date of Patent: June 9, 2009Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Kenji Osawa, Hideo Koike, Junichiro Osako, Tamaki Wada
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Patent number: 7478473Abstract: The productivity of an IC card is to be improved. In a memory card of the type in which a memory body having a wiring substrate and a semiconductor chip mounted on a main surface of the wiring substrate is held so as to be sandwiched in between a first case and a second case, a planar outline of the memory body is smaller than half of a planar outline of the memory card. The memory body is disposed so as to be positioned closer to a first end side as one short side of the memory card with respect to a midline between the first end side and a second end side as an opposite short side of the memory card positioned on the side opposite to the first end side. The other area than the memory body-disposed area in the first and the second case is used as another functional area.Type: GrantFiled: September 28, 2006Date of Patent: January 20, 2009Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Kenji Osawa, Akira Higuchi, Junichiro Osako, Tamaki Wada
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Patent number: 7467464Abstract: A method for manufacturing a multi media card comprises the steps of: providing a substrate, mounting a first flash memory chip and a controller chip for controlling the flash memory chip over a front surface of the substrate, molding the first flash memory chip and the controller chip by a resin, providing a case having a main surface and a back surface, wherein the back surface of the case has a first recess and a second recess, and, covering the resin and the front surface of the substrate by the case. The depth of the first recess is deeper than the depth of the second recess. The resin is fitted in the first recess. An edge portion of the substrate is fitted in the second recess. The substrate warps so that a central portion of the substrate projects in a direction away from the case.Type: GrantFiled: December 3, 2007Date of Patent: December 23, 2008Assignees: Renesas Technology Corp., Hitachi ULSI Systems, Co., Ltd.Inventors: Takahiro Osawa, Yoichi Kawata, Atsushi Fujishima, Tamaki Wada, Kenichi Imura
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WIRELESS COMMUNICATION SYSTEM, SIM CARD, MOBILE COMMUNICATION TERMINAL, AND DATA GUARANTEEING METHOD
Publication number: 20080300020Abstract: The loss of data stored in a secure memory card, such as a SIM card, due to the physical destruction thereof is prevented. A host unit performs card authentication of a memory card, and transmits update data for the memory card by security communication to update data when the result of the authentication is OK. Then, the host unit outputs a request for mirror-updating the card data to a base station server. When an access is permitted, the card data is transmitted to the base station server via the host unit to mirror-update the card data. When the mirror-updating of the card data is completed, the base station server returns a completion confirmation to the host unit, so that a data backup process is completed. By thus causing the base station server to mirror-update the data in the memory card, the loss of the stored data is prevented.Type: ApplicationFiled: May 8, 2008Publication date: December 4, 2008Inventors: Hirotaka Nishizawa, Hideo Koike, Hironori Iwasaki, Junichiro Osako, Minoru Shinohara, Tamaki Wada -
Publication number: 20080283619Abstract: An IC card is prevented from falling off readily an electronic device while maintaining the mechanical strength of the IC card. A recess for preventing a memory card from falling off an electronic device is provided at the side of one side of a principal surface of a cap of the memory card which is configured by fitting a memory body in a recess formed on a parts mounting surface of the cap. The bottom of the recess is terminated in the middle of the thickness of the cap. This construction makes it possible to prevent the memory card from falling off readily an electronic device while maintaining the mechanical strength of the memory card.Type: ApplicationFiled: July 29, 2008Publication date: November 20, 2008Inventors: Hirotaka Nishizawa, Akira Higuchi, Kenji Osawa, Junichiro Osako, Tamaki Wada
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Publication number: 20080272197Abstract: An antenna connection function for a noncontact interface is provided by suppressing a modification in a pin arrangement and a pin shape of a memory card that does not correspond to the noncontact interface. Two antenna connecting pins having the memory card are divided into two areas in which a size of one potential supply pin is the largest and used as a split pin arranged at intervals. Because a size of the two antenna connecting pins is at maximum as large as the size of the potential supply pin, the two antenna connecting pins are provided and the memory card that corresponds to the noncontact interface is obtained by devoting a pin area having the size of the one potential supply pin to the memory card that does not correspond to the noncontact interface. Accordingly, the pin area of the memory card that corresponds to the noncontact interface can be formed without departing from the pin area of the memory card that does not correspond to the noncontact interface.Type: ApplicationFiled: December 16, 2007Publication date: November 6, 2008Inventors: Hirotaka NISHIZAWA, Akira Higuchi, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama
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Publication number: 20080257967Abstract: To realize compatibility with an SIM card and adaptation to a high-speed memory access in an IC card module having a microcomputer and a memory card controller. An IC card module includes a plurality of first external connecting terminals and a plurality of second external connecting terminals both exposed to one surface of a card substrate, a microcomputer connected to the first external connecting terminals, a memory controller connected to the second external connecting terminals, and a volatile memory connected to the memory controller. The shape of the card substrate and the layout of the first external connecting terminals are based on a standard of plug-in UICC of ETSI TS 102 221 V4.4.0 (2001-10) or have compatibility. The second external connecting terminals are disposed outside the minimum range of the terminal layout based on the standard for the first external connecting terminals.Type: ApplicationFiled: October 18, 2007Publication date: October 23, 2008Inventors: Hirotaka Nishizawa, Takashi Totsuka, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama
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Patent number: 7416133Abstract: An IC card is prevented from falling off readily an electronic device while maintaining the mechanical strength of the IC card. A recess for preventing a memory card from falling off an electronic device is provided at the side of one side of a principal surface of a cap of the memory card which is configured by fitting a memory body in a recess formed on a parts mounting surface of the cap. The bottom of the recess is terminated in the middle of the thickness of the cap. This construction makes it possible to prevent the memory card from falling off readily an electronic device while maintaining the mechanical strength of the memory card.Type: GrantFiled: October 12, 2004Date of Patent: August 26, 2008Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Akira Higuchi, Kenji Osawa, Junichiro Osako, Tamaki Wada
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Publication number: 20080173995Abstract: There is a need to provide a large capacity memory card for a portable communication device. A memory card 1 includes: a wiring board 2 mainly composed of a glass epoxy resin; multiple semiconductor chips (3C and 3F) mounted on a main surface of the memory card 1; and a mold resin 4 for encapsulating the wiring board 2 and the semiconductor chips (3C and 3F). The mold resin 4 is made of a thermosetting epoxy resin containing quartz filler. A back surface of the wiring board 2 is not covered with the mold resin 4 and is exposed to a back surface of the memory card 1. The back surface of the wiring board 2 is used to form multiple external connection terminals 7 electrically connected to the semiconductor chips (3C and 3F) . When the memory card 1 is attached to a card slot of a mobile phone, the external connection terminals 7 contact with a connector terminal contained in the card slot. This makes it possible to exchange signals between the memory card 1 and the mobile phone or to supply the power.Type: ApplicationFiled: September 12, 2007Publication date: July 24, 2008Inventors: Bunshi Kuratomi, Fukumi Shimizu, Michiaki Sugiyama, Atsushi Fujishima, Tamaki Wada
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Publication number: 20080153205Abstract: A semiconductor device comprising a first wiring board having a plurality of external connection terminals on one side, semiconductor chips mounted on the other side of the first wiring board and electrically connected to the first wiring board by a plurality of wires, a sealing resin for sealing the semiconductor chips and the wires, and a second wiring board having a plurality of contact points on one side and bonded to the top surface of the sealing resin on the other side, wherein the upper end portions of the loops of the plurality of wires for electrically connecting the first wiring board to the semiconductor chips are exposed from the top surface of the sealing resin and electrically connected to the second wiring board.Type: ApplicationFiled: February 26, 2008Publication date: June 26, 2008Inventors: Hirotaka NISHIZAWA, Tamaki Wada, Kenji Osawa, Junichiro Osako, Michiaki Sugiyama
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Publication number: 20080149739Abstract: A semiconductor device includes external interface terminals and processing circuits, and it is fed with an operating power source when detachably set in a host equipment. Power source feeding terminals (VCC, VSS) among the external interface terminals are long enough to keep touching the corresponding terminals of the host equipment for, at least, a predetermined time period since the separation of an extraction detecting terminal among the external interface terminals, from the corresponding terminal of the host equipment, and they are formed to be longer in the extraction direction of the semiconductor device than the extraction detecting terminal. These power source feeding terminals are a power source terminal and a ground terminal, and any power source compensating capacitor is not connected between the power source terminal and the ground terminal.Type: ApplicationFiled: March 4, 2008Publication date: June 26, 2008Inventors: Hirotaka NISHIZAWA, Kenji Osawa, Hideo Koike, Junichiro Osako, Tamaki Wada
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Publication number: 20080115352Abstract: A memory card wherein a substrate is affixed to a cap is formed without the projection of substrate edges from a back surface of the cap. The memory card includes a substrate having a sealing member bonded to a recess in the cap. By utilizing a difference in thermal expansion coefficient between the sealing member and the substrate, the substrate is warped so that its central portion projects away from the cap. The shallow recess is deeper than the sum of the thickness of the substrate and the thickness of an adhesive for bonding the substrate to the bottom of the shallow recess, whereby peripheral edges of the substrate retract into the shallow recess without projecting from the back surface of the cap. The cap is shaped as a card several millimeters thick. A memory chip and control chip are incorporated in the sealing member.Type: ApplicationFiled: December 3, 2007Publication date: May 22, 2008Inventors: Takahiro Osawa, Yoichi Kawata, Atsushi Fujishima, Tamaki Wada, Kenichi Imura
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Patent number: 7360713Abstract: A semiconductor device includes external interface terminals and processing circuits, and couples to an operating power source when detachably set in a host equipment. Power source feeding terminals (VCC, VSS) among the external interface terminals are long enough to keep touching the corresponding terminals of the host equipment for at least a predetermined time period since the separation of an extraction detecting terminal from a corresponding terminal of the host equipment, and they are formed to be longer in the extraction direction of the semiconductor device than the extraction detecting terminal. These power source feeding terminals are a power source terminal and a ground terminal, and any power source compensating capacitor is not connected between the power source terminal and the ground terminal.Type: GrantFiled: September 24, 2004Date of Patent: April 22, 2008Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Kenji Osawa, Hideo Koike, Junichiro Osako, Tamaki Wada
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Patent number: 7352588Abstract: A semiconductor device comprising a first wiring board having a plurality of external connection terminals on one side, semiconductor chips mounted on the other side of the first wiring board and electrically connected to the first wiring board by a plurality of wires, a sealing resin for sealing the semiconductor chips and the wires, and a second wiring board having a plurality of contact points on one side and bonded to the top surface of the sealing resin on the other side, wherein the upper end portions of the loops of the plurality of wires for electrically connecting the first wiring board to the semiconductor chips are exposed from the top surface of the sealing resin and electrically connected to the second wiring board.Type: GrantFiled: March 10, 2006Date of Patent: April 1, 2008Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Tamaki Wada, Kenji Osawa, Junichiro Osako, Michiaki Sugiyama
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Patent number: D581932Type: GrantFiled: May 17, 2007Date of Patent: December 2, 2008Assignees: Renesas Technology Corp., Sony Kabushiki KaishaInventors: Hirotaka Nishizawa, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama, Takashi Totsuka, Yoshitaka Aoki, Keiichi Tsutsui