Patents by Inventor Hirotaka Nishizawa

Hirotaka Nishizawa 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).

  • Patent number: 7547961
    Abstract: An IC card capable of reinforcing the prevention of the electrostatic damage without causing a rise in the cost of a semiconductor integrated circuit chip. The semiconductor integrated circuit chip (2) is mounted on a card substrate (1), and plural connection terminals (3) are exposed. The connection terminals are connected to predetermined external terminals (4) of the semiconductor integrated circuit chip, first overvoltage protection elements (7, 8, 9) connected to the external terminals are integrated in the semiconductor integrated circuit chip, and second overvoltage protection elements such as surface-mount type varistors (11) connected to the connection terminals are mounted on the card substrate. The varistors are variable resistor elements having a current tolerating ability greater than that of the first overvoltage protection elements.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: June 16, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Hirotaka Nishizawa, Yosuke Yukawa, Takashi Totsuka
  • Patent number: 7543757
    Abstract: 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: Grant
    Filed: March 4, 2008
    Date of Patent: June 9, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Hirotaka Nishizawa, Kenji Osawa, Hideo Koike, Junichiro Osako, Tamaki Wada
  • Patent number: 7538418
    Abstract: An IC card capable of reinforcing the prevention of the electrostatic damage without causing a rise in the cost of a semiconductor integrated circuit chip. The semiconductor integrated circuit chip (2) is mounted on a card substrate (1), and plural connection terminals (3) are exposed. The connection terminals are connected to predetermined external terminals (4) of the semiconductor integrated circuit chip, first overvoltage protection elements (7, 8, 9) connected to the external terminals are integrated in the semiconductor integrated circuit chip, and second overvoltage protection elements such as surface-mount type varistors (11) connected to the connection terminals are mounted on the card substrate. The varistors are variable resistor elements having a current tolerating ability greater than that of the first overvoltage protection elements.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: May 26, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Hirotaka Nishizawa, Yosuke Yukawa, Takashi Totsuka
  • Patent number: 7516903
    Abstract: A multifunction IC card (MFC) has compatibility with a multimedia card, an SD card, etc. in that connector terminals (#1 through #13) are disposed on a card substrate (1) in two rows in a zigzag fashion, and realizes multifunction facilities in that a memory card unit (3) and an SIM (Subscriber Identity Module) card unit (4) are respectively connected and mounted to predetermined terminals of the connector terminals (#1 through #13). The memory card unit (3) and the SIM card unit (4) are respectively separately provided with areas for storing secret codes for security. Thus, one IC card is capable of implementing multifunction facilities different in security level. Owing to the adoption of a plural-column layout corresponding to a form typified by the zigzag fashion in an array of the connector terminals, a relatively simple structure can be adopted in a card slot.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: April 14, 2009
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Yosuke Yukawa
  • Publication number: 20090065593
    Abstract: An IC card and card adapters are designed so that the IC card of a specific standard (e.g., MMC standard) is compatible with IC cards and terminals of other standards (e.g., MS card standard and USB terminal standard). In the IC card (MMC), a controller IC, which is connected to a flash memory, includes a voltage pull-down detector, a mode controller, a USB-mode interface controller, a MS-mode interface controller, and an MMC/SD-mode interface controller. The card adapters suffice to have component parts which are easy in formation and low in cost such as wiring lines and resistors. The voltage pull-down detector of the IC card detects the voltage pull-down caused by the resistors, and the mode controller selects the USB-mode interface controller, MS-mode interface controller or MMC/SD-mode interface controller so that the IC card becomes compatible with the corresponding IC card standard.
    Type: Application
    Filed: October 30, 2008
    Publication date: March 12, 2009
    Inventors: Akira Higuchi, Hirotaka Nishizawa, Junichiro Osaka, Kenji Osawa
  • Publication number: 20090057417
    Abstract: The present invention realizes a card on which a secure IC chip (a first semiconductor chip) that operates on both of a high power source voltage and a low power source voltage, and a nonvolatile semiconductor storage chip that operates on the lower power source voltage are mounted. Means for operating the card without exerting an adverse influence of the nonvolatile semiconductor storage chip when the high power source voltage is supplied is realized. A card has a voltage supply interrupting unit which is coupled to a power source terminal to which a first power source voltage and a second power source voltage higher than the first power source voltage are supplied, and a grounding terminal to which a grounding voltage is supplied. The voltage supply interrupting unit, when the first power source voltage is supplied, supplies voltage to a nonvolatile semiconductor storage chip and, when the second power source voltage is supplied, stops supplying the voltage to the nonvolatile semiconductor storage chip.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 5, 2009
    Inventors: Minoru SHINOHARA, Takeshi Miura, Kanji Mizuno, Shigemasa Shiota, Masayuki Suzuki, Hirotaka Nishizawa
  • Patent number: 7478473
    Abstract: 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: Grant
    Filed: September 28, 2006
    Date of Patent: January 20, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Hirotaka Nishizawa, Kenji Osawa, Akira Higuchi, Junichiro Osako, Tamaki Wada
  • Publication number: 20080300020
    Abstract: 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: Application
    Filed: May 8, 2008
    Publication date: December 4, 2008
    Inventors: Hirotaka Nishizawa, Hideo Koike, Hironori Iwasaki, Junichiro Osako, Minoru Shinohara, Tamaki Wada
  • Patent number: 7458519
    Abstract: A card tray to be mounted to a memory card can make the memory card mountable in a card slot for memory cards conforming to standards different from those to which the memory card conforms. The card tray has a main body and a recessed mount section. The recessed mount section is formed such that the holder of a second memory card can be mounted to one of the major surfaces of the main body. A memory-card-mounted body is produced when the second memory card is mounted to the recessed mount section. The card tray is configured such that, when the first memory card is placed on the memory-card-mounted body with the left and right edges thereof aligned with each other, the contact pieces of the first memory card and the contact pieces of the second memory card have longitudinally overlapping parts and transversally overlapping parts as viewed from above.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: December 2, 2008
    Assignee: Sony Corporation
    Inventors: Yoshitaka Aoki, Keiichi Tsutsui, Hirotaka Nishizawa, Takashi Totsuka
  • Publication number: 20080283619
    Abstract: 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: Application
    Filed: July 29, 2008
    Publication date: November 20, 2008
    Inventors: Hirotaka Nishizawa, Akira Higuchi, Kenji Osawa, Junichiro Osako, Tamaki Wada
  • Publication number: 20080272197
    Abstract: 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: Application
    Filed: December 16, 2007
    Publication date: November 6, 2008
    Inventors: Hirotaka NISHIZAWA, Akira Higuchi, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama
  • Publication number: 20080257968
    Abstract: An IC card has a card substrate having semiconductor integrated circuit chips mounted thereon and a plurality of connector terminals formed thereon. The connector terminals are exposed from a casing. The connector terminals are laid out in plural sequences in staggered form between sequences adjacent to one another forward and backward as viewed in an IC card inserting direction. Owing to the adoption of the staggered layout, a structure or configuration wherein the amounts of protrusions of socket terminals of a card socket are changed and the socket terminals are laid out in tandem, can be adopted with relative ease. If a connector terminal arrangement of a downward or low-order IC card is adopted as a specific connector terminal sequence as it is, whereas a function dedicated for an upward or high-order IC card is assigned to another staggered connector terminal arrangement, then backward compatibility can also be implemented with ease.
    Type: Application
    Filed: October 25, 2007
    Publication date: October 23, 2008
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Kouichi Kanemoto, Yousuke Yukawa
  • Publication number: 20080257967
    Abstract: 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: Application
    Filed: October 18, 2007
    Publication date: October 23, 2008
    Inventors: Hirotaka Nishizawa, Takashi Totsuka, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama
  • Patent number: 7427032
    Abstract: An adapter for a memory card is disclosed which performs a change of size so that a memory card smaller in planar size but almost equal in thickness as compared with a multi-media card can be used as a multi-media card. A protuberant portion is formed behind plural external terminals formed on a back side of the adapter, whereby, while the thickness of a front side of the adapter is maintained at a standardized thickness of the multi-media card, a rear side of the adapter is made thicker than the front side and internal terminals for contact with external terminals of the memory card are disposed in the interior of the thick portion of the adapter. The versatility of an extremely small-sized memory card can be improved.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: September 23, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Junichiro Osako, Hirotaka Nishizawa, Kenji Osawa, Hideo Koike
  • Publication number: 20080225498
    Abstract: An adapter for a memory card is disclosed which performs a change of size so that a memory card smaller in planar size but almost equal in thickness as compared with a multi-media card can be used as a multi-media card. A protuberant portion is formed behind plural external terminals formed on a back side of the adapter, whereby, while the thickness of a front side of the adapter is maintained at a standardized thickness of the multi-media card, a rear side of the adapter is made thicker than the front side and internal terminals for contact with external terminals of the memory card are disposed in the interior of the thick portion of the adapter. The versatility of an extremely small-sized memory card can be improved.
    Type: Application
    Filed: May 23, 2008
    Publication date: September 18, 2008
    Inventors: JUNICHIRO OSAKO, Hirotaka Nishizawa, Kenji Osawa, Hideo Koike
  • Publication number: 20080211074
    Abstract: An IC body is loaded to a case 2 made of thermosetting resin material and sealed with a sealing portion made of thermosetting resin material to be integrated, whereby an IC card is manufactured. The IC body comprises: a wiring substrate formed with an external connection terminal at a back surface thereof; a semiconductor chip loaded over a surface of the wiring substrate and electrically connected to the external connection terminal via a interconnect; and the sealing portion made of thermosetting resin material so as to cover the semiconductor chip and a bonding wire. The sealing portion is formed so that the external connection terminal is exposed. The present invention makes it possible to heighten the strength of IC cards and at the same time, to reduce the manufacturing cost and improve the reliability.
    Type: Application
    Filed: May 6, 2008
    Publication date: September 4, 2008
    Inventors: Junichiro OSAKO, Hirotaka Nishizawa, Kenji Osawa, Akira Higuchi
  • Patent number: 7416133
    Abstract: 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: Grant
    Filed: October 12, 2004
    Date of Patent: August 26, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Hirotaka Nishizawa, Akira Higuchi, Kenji Osawa, Junichiro Osako, Tamaki Wada
  • Patent number: 7402047
    Abstract: A multifunction IC card (MFC) has compatibility with a multimedia card, an SD card, etc. in that connector terminals (#1 through #13) are disposed on a card substrate (1) in two rows in a zigzag fashion, and realizes multifunction facilities in that a memory card unit (3) and an SIM (Subscriber Identity Module) card unit (4) are respectively exclusively connected and mounted to predetermined terminals of the connector terminals (#1 through #13). The memory card unit (3) and the SIM card unit (4) are respectively separately provided with areas for storing secrete codes for security. Thus, one IC card is capable of implementing multifunction facilities different in security level.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: July 22, 2008
    Assignees: Renesas Technology Corp., Hitachi UlSI Systems Co., Ltd.
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Yosuke Yukawa
  • Publication number: 20080153205
    Abstract: 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: Application
    Filed: February 26, 2008
    Publication date: June 26, 2008
    Inventors: Hirotaka NISHIZAWA, Tamaki Wada, Kenji Osawa, Junichiro Osako, Michiaki Sugiyama
  • Patent number: D581932
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: December 2, 2008
    Assignees: Renesas Technology Corp., Sony Kabushiki Kaisha
    Inventors: Hirotaka Nishizawa, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama, Takashi Totsuka, Yoshitaka Aoki, Keiichi Tsutsui