Patents by Inventor Seiji Miura

Seiji Miura 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: 8790549
    Abstract: An object of the present invention is to provide an electronic component using a Cu-based conductive material that can suppress oxidization even in a heat treatment in an oxidizing atmosphere and that can suppress an increase in an electrical resistance. In an electronic component having an electrode or a wiring, a ternary alloy made from three elements consisting of Cu, Al, and Co is used as a Cu-based wiring material that can prevent oxidization of the electrode or the wiring. Specifically, part or the whole of the electrode or the wiring has a chemical composition in which an Al content is 10 at % to 25 at %, a Co content is 5 at % to 20 at %, and the balance is composed of Cu and unavoidable impurities, and the chemical composition represents a ternary alloy in which two phases of a Cu solid solution formed by Al and Co being dissolved into Cu and a CoAl intermetallic compound coexist together.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 29, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Takahiko Kato, Takashi Naito, Hiroki Yamamoto, Takuya Aoyagi, Seiichi Watanabe, Seiji Miura, Norihito Sakaguchi, Kazuki Aoshima, Kenji Ohkubo
  • Patent number: 8773919
    Abstract: In a phase change memory, when M bit (8 bits=1 byte) data is written, erase operation and program operation are performed in units of n bit (M>n) data. Further, when M bit data is written, program operation is performed in units of the n bit (M>n) data. Further, when M bit data is read from the memory cell, read operation is performed in units of the n bit (M>n) data. For example, when the data is written into to the phase change memory, the data is not overwritten but program is performed after once erasing the target memory cell. The data size for erasure and the data size for program are made equal. Erase and program operation are performed only for the demanded data size.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: July 8, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Miura, Satoru Hanzawa
  • Patent number: 8732360
    Abstract: A storage system and method for storing information in memory nodes. The storage or memory nodes include a communication buffer. Flow of information to the storage nodes is controlled based upon constraints on the communication buffer. In one embodiment, communications between a master controller and a storage node have a determined maximum latency.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: May 20, 2014
    Assignee: Spansion LLC
    Inventors: Roger Dwain Isaac, Seiji Miura
  • Patent number: 8711650
    Abstract: In order to implement a memory having a large storage capacity and a reduced data retention current, a non-volatile memory, an SRAM, a DRAM, and a control circuit are modularized into one package. The control circuit conducts assignment of addresses to the SRAM and DRAM, and stores data that must be retained over a long period of time in the SRAM. In the DRAM, a plurality of banks are divided into two sets, and mapped to the same address space, and sets are refreshed alternately. A plurality of chips of them are stacked and disposed, and wired by using the BGA and chip-to-chip bonding.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: April 29, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Kazushige Ayukawa, Seiji Miura, Yoshikazu Saitou
  • Patent number: 8711637
    Abstract: In a phase change memory, when M bit (8 bits=1 byte) data is written, erase operation and program operation are performed in units of n bit (M>n) data. Further, when M bit data is written, program operation is performed in units of the n bit (M>n) data. Further, when M bit data is read from the memory cell, read operation is performed in units of the n bit (M>n) data. For example, when the data is written into to the phase change memory, the data is not overwritten but program is performed after once erasing the target memory cell. The data size for erasure and the data size for program are made equal. Erase and program operation are performed only for the demanded data size.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 29, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Miura, Satoru Hanzawa
  • Patent number: 8621158
    Abstract: In an information processor system including a memory device (MEM0), a memory control device (SL0) capable of controlling an operation of the memory device, and a plurality of bus masters (MS0 to MS3) capable of giving access to the memory device through the memory control device, the memory control device includes a control circuit (SDCON) capable of giving a notice of information about a time that a data transfer from the memory device can be started to the bus master related to an access request. The bus master can cause the time information thus given to be a judgment factor as to whether an access request is given to the memory device or not. Consequently, each of the bus masters can avoid the generation of a useless access request and a data transfer to the masters to be accessed can be carried out smoothly.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: December 31, 2013
    Assignee: Renesas Electronics Corporation
    Inventor: Seiji Miura
  • Publication number: 20130332667
    Abstract: An information processor includes an information processing sub-system having information processing circuits and a memory sub-system performing data communication with the information processing sub-systems, wherein the memory sub-system has a first memory, a second memory, a third memory having reading and writing latencies longer than those of the first memory and the second memory, and a memory controller for controlling data transfer among the first memory, the second memory and the third memory; graph data is stored in the third memory; the memory controller analyzes data blocks serving as part of the graph data, and performs preloading operation repeatedly to transfer the data blocks to be required next for the execution of the processing from the third memory to the first memory or the second memory on the basis of the result of the analysis.
    Type: Application
    Filed: May 2, 2013
    Publication date: December 12, 2013
    Applicant: HITACHI, LTD.
    Inventors: Hiroshi UCHIGAITO, Kenzo KUROTSUCHI, Seiji MIURA
  • Patent number: 8601181
    Abstract: Methods for controlling read data buffering are disclosed. In one of the methods core operations are performed in response to a receipt of a read command from a master controller and an internal or external communication buffer of a data storage node is selected to forward information to the master controller. The data storage node is selected based upon constraints and contents of one or more communication buffers. Information is forwarded from the selected internal or external communication buffer to the master controller.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: December 3, 2013
    Assignee: Spansion LLC
    Inventors: Seiji Miura, Roger Dwain Isaac
  • Patent number: 8432716
    Abstract: A semiconductor device including a large capacity non-volatile memory and at least one random access memory, said the access time of said device being matched to the access time of each random access memory. The semiconductor memory device is comprised of: a non-volatile memory FLASH having a first reading time; a random access memory DRAM having a second reading time which is more than 100 times shorter than the first reading time; a circuit that includes a control circuit connected to both the FLASH and the DRAM and enabled to control accesses to those FLASH and DRAM; and a plurality of I/O terminals connected to the circuit. As a result, FLASH data is transferred to the DRAM before the DRAM is accessed, thereby matching the access time between the FLASH and the DRAM. Data is written back from the DRAM to the FLASH as needed, thereby keeping data matched between the FLASH and the DRAM and storing the data.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: April 30, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Seiji Miura, Kazushige Ayukawa
  • Patent number: 8429355
    Abstract: In an information processor system including a memory device (MEM0), a memory control device (SL0) capable of controlling an operation of the memory device, and a plurality of bus masters (MS0 to MS3) capable of giving access to the memory device through the memory control device, the memory control device includes a control circuit (SDCON) capable of giving a notice of information about a time that a data transfer from the memory device can be started to the bus master related to an access request. The bus master can cause the time information thus given to be a judgment factor as to whether an access request is given to the memory device or not. Consequently, each of the bus masters can avoid the generation of a useless access request and a data transfer to the masters to be accessed can be carried out smoothly.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: April 23, 2013
    Assignee: Renesas Electronics Corporation
    Inventor: Seiji Miura
  • Publication number: 20120328675
    Abstract: Provided is a film preparation in which an unpleasant taste derived from a medicament is masked. The film preparation includes coating layers containing no terpene formed on both sides of a medicament-containing layer containing a medicament having an unpleasant taste and a terpene.
    Type: Application
    Filed: March 3, 2011
    Publication date: December 27, 2012
    Applicants: KOWA CO., LTD., KYUKYU PHARMACEUTICAL CO., LTD.
    Inventors: Tsutomu Awamura, Hisanobu Nishikawa, Kazuhiko Kokaji, Akihiro Ishise, Takayuki Arai, Seiji Miura, Toshio Inagi
  • Publication number: 20120285733
    Abstract: An object of the present invention is to provide an electronic component using a Cu-based conductive material that can suppress oxidization even in a heat treatment in an oxidizing atmosphere and that can suppress an increase in an electrical resistance. In an electronic component having an electrode or a wiring, a ternary alloy made from three elements consisting of Cu, Al, and Co is used as a Cu-based wiring material that can prevent oxidization of the electrode or the wiring. Specifically, part or the whole of the electrode or the wiring has a chemical composition in which an Al content is 10 at % to 25 at %, a Co content is 5 at % to 20 at %, and the balance is composed of Cu and unavoidable impurities, and the chemical composition represents a ternary alloy in which two phases of a Cu solid solution formed by Al and Co being dissolved into Cu and a CoAl intermetallic compound coexist together.
    Type: Application
    Filed: April 8, 2010
    Publication date: November 15, 2012
    Inventors: Takahiko Kato, Takashi Naito, Hiroki Yamamoto, Takuya Aoyagi, Seiichi Watanabe, Seiji Miura, Norihito Sakaguchi, Kazuki Aoshima, Kenji Ohkubo
  • Publication number: 20120271987
    Abstract: A memory system including ROM and RAM in which reading and writing are enabled. A memory system includes a non-volatile memory (FLASH), DRAM, a control circuit, and an information processing device. Data in FLASH is transferred to SRAM or DRAM in advance. Data transfer between the non-volatile memory and the DRAM can be performed in the background. The memory system including these plural chips is configured as a memory system module in which each chip is mutually laminated and each chip is wired via a ball grid array (BGA) and bonding wire between the chips. Data in FLASH can be read at the similar speed to that of DRAM by securing a region in which the data in FLASH can be copied in DRAM and transferring the data to DRAM in advance immediately after power is turned on or by a load instruction.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 25, 2012
    Inventors: Seiji MIURA, Kazushige AYUKAWA
  • Publication number: 20120265925
    Abstract: A control circuit of a semiconductor device (memory module) realizes long life and others by a mechanism that suppresses and smoothes variations in use of a memory by equalizing the sizes of data write and data erase with respect to a data write request and sequentially allocating and using addresses of the memory in data write to an overwritable non-volatile memory device without carrying out an overwriting operation even in the case of an overwrite request. The control circuit realizes data write by a set of two types of operations of (a) an operation of erasing data of a first address or an operation of setting a flag value to an invalid state and (b) an operation of writing data to a second address different from the first address or an operation of setting a flag value to a valid state.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 18, 2012
    Inventor: Seiji MIURA
  • Publication number: 20120262992
    Abstract: In order to implement a memory having a large storage capacity and a reduced data retention current, a non-volatile memory, an SRAM, a DRAM, and a control circuit are modularized into one package. The control circuit conducts assignment of addresses to the SRAM and DRAM, and stores data that must be retained over a long period of time in the SRAM. In the DRAM, a plurality of banks are divided into two sets, and mapped to the same address space, and sets are refreshed alternately. A plurality of chips of them are stacked and disposed, and wired by using the BGA and chip-to-chip bonding.
    Type: Application
    Filed: June 26, 2012
    Publication date: October 18, 2012
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Kazushige Ayukawa, Seiji Miura, Yoshikazu Saitou
  • Patent number: 8271740
    Abstract: In an information processing system, a plurality of information processing devices CHIP0 and CHIP1 are connected to multiport memory MPMEM0 that has a plurality of ports, and memory areas in multiport memory MPMEM0 can be altered to memory areas occupied by particular ports and memory areas shared by a plurality of ports. At such times, immediately after the occurrence of a request from a port, the status of this request may be supplied from other ports.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: September 18, 2012
    Assignee: Elpida Memory, Inc.
    Inventors: Seiji Miura, Yoshinori Matsui, Kazuhiko Abe, Shoji Kaneko
  • Patent number: 8255622
    Abstract: A memory controller and data processor have their operation mode switched from the page-on mode for high-speed access to a same page to the page-off mode in response to consecutive events of access to different pages, so that the memory access is performed at a high speed and low power consumption.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: August 28, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Seiji Miura, Kazushige Ayukawa
  • Patent number: 8223578
    Abstract: In order to implement a memory having a large storage capacity and a reduced data retention current, a non-volatile memory, an SRAM, a DRAM, and a control circuit are modularized into one package. The control circuit conducts assignment of addresses to the SRAM and DRAM, and stores data that must be retained over a long period of time in the SRAM. In the DRAM, a plurality of banks are divided into two sets, and mapped to the same address space, and sets are refreshed alternately. A plurality of chips of them are stacked and disposed, and wired by using the BGA and chip-to-chip bonding.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: July 17, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Kazushige Ayukawa, Seiji Miura, Yoshikazu Saitou
  • Publication number: 20120134203
    Abstract: In a phase change memory, when M bit (8 bits=1 byte) data is written, erase operation and program operation are performed in units of n bit (M>n) data. Further, when M bit data is written, program operation is performed in units of the n bit (M>n) data. Further, when M bit data is read from the memory cell, read operation is performed in units of the n bit (M>n) data. For example, when the data is written into to the phase change memory, the data is not overwritten but program is performed after once erasing the target memory cell. The data size for erasure and the data size for program are made equal. Erase and program operation are performed only for the demanded data size.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 31, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Seiji Miura, Satoru Hanzawa
  • Patent number: 8185690
    Abstract: A memory system including ROM and RAM in which reading and writing are enabled. A memory system includes a non-volatile memory (FLASH), DRAM, a control circuit, and an information processing device. Data in FLASH is transferred to SRAM or DRAM in advance. Data transfer between the non-volatile memory and the DRAM can be performed in the background. The memory system including these plural chips is configured as a memory system module in which each chip is mutually laminated and each chip is wired via a ball grid array (BGA) and bonding wire between the chips. Data in FLASH can be read at the similar speed to that of DRAM by securing a region in which the data in FLASH can be copied in DRAM and transferring the data to DRAM in advance immediately after power is turned on or by a load instruction.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: May 22, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Seiji Miura, Kazushige Ayukawa