Patents by Inventor Yasuhiro Ishizuka

Yasuhiro Ishizuka 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: 6902860
    Abstract: The present invention includes a two-layer imageable element, including: a substrate, a top layer including a first thermally imageable composition including (a) a first thermally sensitive supramolecular polymer or (b) a thermally imageable composition free of the first thermally sensitive supramolecular polymer; and disposed between the substrate and the top layer, a bottom layer including a second thermally imageable composition, which includes a second thermally sensitive supramolecular polymer. The present invention also includes a method of producing the imaged element.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: June 7, 2005
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Yasuhiro Asawa, Yasuhiro Ishizuka, Eiji Hayakawa, S. Peter Pappas
  • Patent number: 6829193
    Abstract: A power supply control circuit for use in a semiconductor storage device is provided. The power supply control circuit comprises a first power supply circuit connected to all subarrays of the semiconductor storage device, for supplying power to all the subarrays, an operation mode determination circuit for determining an operation mode in which the semiconductor storage device is placed and for generating a first block selection signal based on address information applied thereto according to the determined operation mode, a row control circuit disposed for each of all the subarrays, for generating a second block selection signal based on the first block selection signal according to the determined operation mode, and a second power supply circuit disposed for each of all the subarrays, for supplying power to a corresponding one of all the subarrays according to the second block selection signal from a corresponding row control circuit.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: December 7, 2004
    Assignees: Renesas Technology Corp., Mitsubishi Electric Engineering Company Limited
    Inventor: Yasuhiro Ishizuka
  • Patent number: 6824947
    Abstract: Photosensitive compositions comprising a phenol resin having a urea bond in the main chain, planographic printing plate precursors containing the photosensitive compositions, and methods for preparing planographic printing plates using the planographic printing plate precursors are disclosed. Planographic printing plates that exhibit good durability, good exposure visual image property, and good solvent resistance; particularly superior resistance to washing oil used in UV ink printing; and superior baking property are produced.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: November 30, 2004
    Assignee: Kodak Polychrome Graphics, LLC
    Inventors: Yasuhiro Ishizuka, Yasuhiko Kojima
  • Publication number: 20030224281
    Abstract: Photosensitive compositions comprising a phenol resin having a urea bond in the main chain, planographic printing plate precursors containing the photosensitive compositions, and methods for preparing planographic printing plates using the planographic printing plate precursors are disclosed. Planographic printing plates that exhibit good durability, good exposure visual image property, and good solvent resistance; particularly superior resistance to washing oil used in UV ink printing; and superior baking property are produced.
    Type: Application
    Filed: February 19, 2003
    Publication date: December 4, 2003
    Inventors: Yasuhiro Ishizuka, Yasuhiko Kojima
  • Publication number: 20030011313
    Abstract: A power supply control circuit for use in a semiconductor storage device is provided. The power supply control circuit comprises a first power supply circuit connected to all subarrays of the semiconductor storage device, for supplying power to all the subarrays, an operation mode determination circuit for determining an operation mode in which the semiconductor storage device is placed and for generating a first block selection signal based on address information applied thereto according to the determined operation mode, a row control circuit disposed for each of all the subarrays, for generating a second block selection signal based on the first block selection signal according to the determined operation mode, and a second power supply circuit disposed for each of all the subarrays, for supplying power to a corresponding one of all the subarrays according to the second block selection signal from a corresponding row control circuit.
    Type: Application
    Filed: June 5, 2002
    Publication date: January 16, 2003
    Inventor: Yasuhiro Ishizuka
  • Publication number: 20020160299
    Abstract: The present invention includes a two-layer imageable element, including: a substrate, a top layer including a first thermally imageable composition including (a) a first thermally sensitive supramolecular polymer or (b) a thermally imageable composition free of the first thermally sensitive supramolecular polymer; and disposed between the substrate and the top layer, a bottom layer including a second thermally imageable composition, which includes a second thermally sensitive supramolecular polymer. The present invention also includes a method of producing the imaged element.
    Type: Application
    Filed: December 28, 2001
    Publication date: October 31, 2002
    Applicant: Kodak Polychrome Graphics, L.L.C.
    Inventors: Yasuhiro Asawa, Yasuhiro Ishizuka, Eiji Hayakawa, S. Peter Pappas
  • Patent number: 6418075
    Abstract: A semiconductor integrated circuit in which a logic and a memory are merged, includes a voltage generation unit for generating two or more internal power supply voltages based on two or more external power supply voltages supplied from outside the voltage generation unit with different timings and for furnishing the plurality of internal power supply voltages to the memory. The voltage generation unit includes a standby unit with a small current-feed ability that is always activated, for generating the plurality of internal power supply voltages, and an active unit with a large current-feed ability that is activated as needed, for generating the plurality of internal power supply voltages. An activation control unit prevents the active unit from being activated until all of the plurality of external power supply voltages rise.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: July 9, 2002
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Company Limited
    Inventors: Hiroki Shimano, Kazutami Arimoto, Yasuhiro Ishizuka, Seizou Furubeppu, Hiroki Sugano
  • Patent number: 6356484
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: March 12, 2002
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Yasuhiro Konishi, Katsumitsu Himukashi, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Ishizuka, Tsukasa Saika
  • Publication number: 20020008547
    Abstract: A semiconductor integrated circuit in which a logic and a memory are merged, includes a voltage generation unit for generating two or more internal power supply voltages based on two or more external power supply voltages supplied from outside the voltage generation unit with different timings and for furnishing the plurality of internal power supply voltages to the memory. The voltage generation unit includes a standby unit with a small current-feed ability that is always activated, for generating the plurality of internal power supply voltages, and an active unit with a large current-feed ability that is activated as needed, for generating the plurality of internal power supply voltages. An activation control unit prevents the active unit from being activated until all of the plurality of external power supply voltages rise.
    Type: Application
    Filed: January 16, 2001
    Publication date: January 24, 2002
    Inventors: Hiroki Shimano, Kazutami Arimoto, Yasuhiro Ishizuka, Seizou Furubeppu, Hiroki Sugano
  • Publication number: 20010040827
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRUM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Application
    Filed: January 10, 2000
    Publication date: November 15, 2001
    Inventors: KATSUMI DOSAKA, MASAKI KUMANOYA, YASUHIRO KONISHI, KATSUMITSU HIMUKASHI, KOUJI HAYANO, AKIRA YAMAZAKI, HISASHI IWAMOTO, HIDEAKI ABE, YASUHIRO ISHIZUKA, TSUKASA SAIKI
  • Patent number: 6026029
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: February 15, 2000
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Konishi, Katsumitsu Himukashi, Yasuhiro Ishizuka, Tsukasa Saiki
  • Patent number: 5848004
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: December 8, 1998
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Konishi, Katsumitsu Himukashi, Yasuhiro Ishizuka, Tsukasa Saiki
  • Patent number: 5731127
    Abstract: A photosensitive composition which comprises a resin (A) having urea bonds in its side chains and a photosensitive compound (B), wherein the resin (A) contains at least one resin selected from the group consisting of a vinyl polymer resin and a condensation polymer resin, provides a coating layer with excellent resistance to solvents and abrasion. The photosensitive composition is suitable for use in the production of planographic printing plates, integrated circuits (IC) or photomasks. A photosensitive planographic printing plate produced usig the photosensitive composition has superior press-life.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: March 24, 1998
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Yasuhiro Ishizuka, Maru Aburano, Eiji Hayakawa, Koji Oe
  • Patent number: 5652723
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: July 29, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Konishi, Katsumitsu Himukashi, Yasuhiro Ishizuka, Tsukasa Saiki
  • Patent number: 5650968
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: July 22, 1997
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Konishi, Katsumitsu Himukashi, Yasuhiro Ishizuka, Tsukasa Saiki
  • Patent number: 5629895
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: May 13, 1997
    Assignees: Mitsubishi Electric Engineering Co., Ltd., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Konishi, Katsumitsu Himukashi, Yasuhiro Ishizuka, Tsukasa Saiki
  • Patent number: 5623454
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: April 22, 1997
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Konishi, Katsumitsu Himukashi, Yasuhiro Ishizuka, Tsukasa Saiki
  • Patent number: 5583813
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 10, 1996
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Konishi, Katsumitsu Himukashi, Yasuhiro Ishizuka, Tsukasa Saiki
  • Patent number: 5559750
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 24, 1996
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Konishi, Katsumitsu Himukashi, Yasuhiro Ishizuka, Tsukasa Saiki
  • Patent number: 5544121
    Abstract: A semiconductor memory device includes a DRAM, an SRAM and a bi-direction transfer gate circuit provided between SRAM and DRAM. SRAM array includes a plurality of sets of word lines. Each set is provided in each row of SRAM array and each word line in each set is connected to a different group of memory cells of an associated row. An address signal for the SRAM and an address signal for the DRAM are separately applied to an address buffer. The semiconductor memory device further includes an additional function control circuit for realizing a burst mode and a sleep mode. A data transfer path from DRAM to the SRAM and a data transfer path from the SRAM to the DRAM are separately provided in the bi-directional transfer gate circuit. Data writing paths and data reading paths are separately provided in the DRAM array. By the above described structure, operation of the buffer circuit is stopped in the sleep mode, reducing power consumption.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: August 6, 1996
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.
    Inventors: Katsumi Dosaka, Masaki Kumanoya, Kouji Hayano, Akira Yamazaki, Hisashi Iwamoto, Hideaki Abe, Yasuhiro Konishi, Katsumitsu Himukashi, Yasuhiro Ishizuka, Tsukasa Saiki