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).

  • Publication number: 20070001279
    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. 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: Application
    Filed: September 24, 2004
    Publication date: January 4, 2007
    Inventors: Hirotaka Nishizawa, Kenji Osawa, Hideo Koike, Junichiro Osako, Tamaki Wada
  • Publication number: 20060249580
    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. 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: Application
    Filed: September 24, 2004
    Publication date: November 9, 2006
    Inventors: Hirotaka Nishizawa, Kenji Osawa, Hideo Koike, Junichiro Osako, Tamaki Wada
  • Patent number: 7122883
    Abstract: A semiconductor device comprising a resin mold, two semiconductor chips positioned inside the resin mold and having front and back surfaces and external terminals formed on the front surfaces, and leads extending from the inside to the outside of the resin mold, wherein each of said leads is branched into two branch leads in at least the resin mold, the one branch lead is secured to the surface of the one semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, the other branch lead is secured to the surface of the other semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, and the two semiconductor chips are stacked one upon the other, with their back surfaces opposed to each other.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: October 17, 2006
    Assignees: Hitachi, Ltd., Hitachi Ulsi Systems Co., Ltd.
    Inventors: Masachika Masuda, Tamaki Wada, Michiaki Sugiyama, Hirotaka Nishizawa, Toshio Sugano, Yasushi Takahashi, Masayasu Kawamura
  • Publication number: 20060228909
    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: Application
    Filed: June 9, 2006
    Publication date: October 12, 2006
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Yosuke Yukawa
  • Publication number: 20060228910
    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: Application
    Filed: June 9, 2006
    Publication date: October 12, 2006
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Yosuke Yukawa
  • Patent number: 7120029
    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 24, 2003
    Date of Patent: October 10, 2006
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Hirotaka Nishizawa, Kenji Osawa, Akira Higuchi, Junichiro Osako, Tamaki Wada
  • Publication number: 20060220204
    Abstract: 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: Application
    Filed: May 10, 2006
    Publication date: October 5, 2006
    Inventors: Tamaki Wada, Hirotaka Nishizawa, Masachika Masuda, Kenji Osawa, Junichiro Osako, Satoshi Hatakeyama, Haruji Ishihara, Kazuo Yoshizaki, Kazunori Furusawa
  • Publication number: 20060220202
    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: June 13, 2006
    Publication date: October 5, 2006
    Inventors: Junichiro Osako, Hirotaka Nishizawa, Kenji Osawa, Akira Higuchi
  • Publication number: 20060220203
    Abstract: 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: Application
    Filed: May 10, 2006
    Publication date: October 5, 2006
    Inventors: Tamaki Wada, Hirotaka Nishizawa, Masachika Masuda, Kenji Osawa, Junichiro Osako, Satoshi Hatakeyama, Haruji Ishihara, Kazuo Yoshizaki, Kazunori Furusawa
  • Publication number: 20060208091
    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: Application
    Filed: September 24, 2004
    Publication date: September 21, 2006
    Inventors: Hirotaka Nishizawa, Kenji Osawa, Hideo Koike, Junichiro Osako, Tamaki Wada
  • Publication number: 20060205280
    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: March 10, 2006
    Publication date: September 14, 2006
    Inventors: Hirotaka Nishizawa, Tamaki Wada, Kenji Osawa, Junichiro Osako, Michiaki Sugiyama
  • Publication number: 20060194479
    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: February 27, 2006
    Publication date: August 31, 2006
    Inventors: Junichiro Osako, Hirotaka Nishizawa, Kenji Osawa, Hideo Koike
  • Publication number: 20060183355
    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: Application
    Filed: April 7, 2006
    Publication date: August 17, 2006
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Yosuke Yukawa
  • Publication number: 20060157573
    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: March 20, 2006
    Publication date: July 20, 2006
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Kouichi Kanemoto, Yousuke Yukawa
  • Publication number: 20060157572
    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: March 20, 2006
    Publication date: July 20, 2006
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Kouichi Kanemoto, Yousuke Yukawa
  • Publication number: 20060151614
    Abstract: A multifunction card device has an external connection terminal, an interface controller, a memory, and the security controller connected to the interface controller and the external connection terminal. The interface controller has a plurality of interface control modes, and controls an external-interface action and a memory interface action by the control mode according to the instruction from the outside. The external connection terminals have an individual terminal individualized for every interface control mode, and a communalized common terminal. A clock input terminal, a power supply terminal, and an earthing terminal are included in the common terminals. A data terminal, and a dedicated terminal of the security controller are included in the individual terminals. Partial communalization and individualization of an external connection terminal attain a guarantee of the reliability of an interface, and increase control of physical magnitude to some kinds of interface control modes.
    Type: Application
    Filed: July 3, 2003
    Publication date: July 13, 2006
    Inventors: Hirotaka Nishizawa, Akira Higuchi, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama
  • Patent number: 7055757
    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: Grant
    Filed: November 16, 2004
    Date of Patent: June 6, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Kouichi Kanemoto, Yousuke Yukawa
  • Patent number: 7053471
    Abstract: 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: Grant
    Filed: October 10, 2002
    Date of Patent: May 30, 2006
    Assignees: Renesas Technologies Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Tamaki Wada, Hirotaka Nishizawa, Masachika Masuda, Kenji Osawa, Junichiro Osako, Satoshi Hatakeyama, Haruji Ishihara, Kazuo Yoshizaki, Kazunori Furusawa
  • Patent number: 7048197
    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: Grant
    Filed: November 16, 2004
    Date of Patent: May 23, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Kouichi Kanemoto, Yousuke Yukawa
  • Patent number: 7044389
    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: January 29, 2003
    Date of Patent: May 16, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Hirotaka Nishizawa, Haruji Ishihara, Atsushi Shiraishi, Yosuke Yukawa