Patents by Inventor Masaru Iizuka

Masaru Iizuka 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: 9082370
    Abstract: Provided is a display control device capable of coping with high-resolution display readily in terms of conducting data write and read on a frame buffer memory in time for the timing of display. The display control device has a plurality of line buffers, and is arranged so that a writing process for writing, into part of the line buffers, display lines of display data from outside, and a reading process for reading out written display lines of display data from other line buffers can be conducted in parallel. In the display control device, display-line data read out from the line buffers are compressed and stored in the frame buffer memory. The compression-display data read out from the frame buffer memory are read out for each line, and decompressed into display lines of display data. The decompressed display data are used to drive signal electrodes of a display device.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: July 14, 2015
    Assignee: SYNAPTICS DISPLAY DEVICES GK
    Inventors: Iori Shiraishi, Kiichi Makuta, Satoshi Saito, Masaru Iizuka
  • Publication number: 20140118300
    Abstract: Provided is a display control device capable of coping with high-resolution display readily in terms of conducting data write and read on a frame buffer memory in time for the timing of display. The display control device has a plurality of line buffers, and is arranged so that a writing process for writing, into part of the line buffers, display lines of display data from outside, and a reading process for reading out written display lines of display data from other line buffers can be conducted in parallel. In the display control device, display-line data read out from the line buffers are compressed and stored in the frame buffer memory. The compression-display data read out from the frame buffer memory are read out for each line, and decompressed into display lines of display data. The decompressed display data are used to drive signal electrodes of a display device.
    Type: Application
    Filed: October 29, 2013
    Publication date: May 1, 2014
    Applicant: Renesas SP Drivers Inc.
    Inventors: Iori Shiraishi, Kiichi Makuta, Satoshi Saito, Masaru Iizuka
  • Patent number: 8068113
    Abstract: The present invention provides a display control semiconductor integrated circuit having therein a RAM, capable of repairing a defective bit included in the RAM and improving the yield without significantly increasing the occupation area. A liquid crystal controller/driver in which a RAM for storing display data is provided in a chip and the storage capacity of the built-in RAM is determined according to the size of a display screen of a liquid crystal panel to be driven, includes a fuse circuit for setting a defect address, and a comparing circuit for comparing the defect address set in the fuse circuit with an input address. The liquid crystal controller/driver also has a redundant circuit, when the addresses match each other, for replacing the input address with an address that instructs the spare memory area and supplying the address to an address decoder.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: November 29, 2011
    Assignee: Renesas Electronic Corporation
    Inventors: Masaru Iizuka, Iori Shiraishi, Sosuke Tsuji, Hiroto Kinno
  • Patent number: 7979755
    Abstract: The present invention is directed to repair a defective bit included in a memory in a semiconductor integrated circuit device for a display controller. The semiconductor integrated circuit device has a display memory capable of storing display data in a storage area, and a repair circuit capable of repairing a defect by replacing an area including a defect in the display memory with a spare storage area provided on the outside of a regular storage area for storing the display data. The device further includes a selector circuit provided on a transmission path of output data from the display memory and selectively replacing output data from the regular storage area with output data from the spare storage area in accordance with a control signal from the repair circuit. By selectively replacing the output data from the regular storage area with output data from the spare storage area in accordance with a control signal from the repair circuit, a defective bit is repaired.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: July 12, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Masaru Iizuka, Sosuke Tsuji
  • Publication number: 20080104457
    Abstract: The present invention is directed to repair a defective bit included in a memory in a semiconductor integrated circuit device for a display controller. The semiconductor integrated circuit device has a display memory capable of storing display data in a storage area, and a repair circuit capable of repairing a defect by replacing an area including a defect in the display memory with a spare storage area provided on the outside of a regular storage area for storing the display data. The device further includes a selector circuit provided on a transmission path of output data from the display memory and selectively replacing output data from the regular storage area with output data from the spare storage area in accordance with a control signal from the repair circuit. By selectively replacing the output data from the regular storage area with output data from the spare storage area in accordance with a control signal from the repair circuit, a defective bit is repaired.
    Type: Application
    Filed: October 10, 2007
    Publication date: May 1, 2008
    Inventors: Masaru Iizuka, Sosuke Tsuji
  • Publication number: 20070205974
    Abstract: The present invention provides a display control semiconductor integrated circuit having therein a RAM, capable of repairing a defective bit included in the RAM and improving the yield without significantly increasing the occupation area. A liquid crystal controller/driver in which a RAM for storing display data is provided in a chip and the storage capacity of the built-in RAM is determined according to the size of a display screen of a liquid crystal panel to be driven, includes a fuse circuit for setting a defect address, and a comparing circuit for comparing the defect address set in the fuse circuit with an input address. The liquid crystal controller/driver also has a redundant circuit, when the addresses match each other, for replacing the input address with an address that instructs the spare memory area and supplying the address to an address decoder.
    Type: Application
    Filed: January 8, 2007
    Publication date: September 6, 2007
    Inventors: Masaru Iizuka, Iori Shiraishi, Sosuke Tsuji, Hiroto Kinno
  • Patent number: 5891248
    Abstract: Apparatus for applying a coating of a slurry of a powdered solder material and a binder to the inner surface of a hollow metal cylinder. The apparatus includes solder material coating device including a coating nozzle which may be moved between a coating position within the interior of the hollow metal cylinder and a non-coating position; a guide for guiding and transporting a hollow metal cylinder towards the nozzle; means for rotating and supporting the hollow metal cylinder when the nozzle is in the coating position. The solder coated metal cylinder is used, for example, to provide an exhaust gas cleaning metal carrier in which a metal honey inner core is inserted into and soldered by the solder slurry applied to the hollow metal cylinder.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: April 6, 1999
    Assignee: Nippon Yakin KogyoCo., Ltd.
    Inventors: Yoshikazu Koshiba, Yasuhide Kuroda, Yukio Aoki, Tsuyoshi Minakata, Masaru Iizuka
  • Patent number: 5593646
    Abstract: A metal carrier and a production method thereof for carrying an exhaust gas cleaning catalyst for automobiles, autobicycles, and industrial equipment. The metal carrier includes a metal honeycomb core body pressed into a metal outer cylinder, and the joined portion of the a flat plate and a corrugated plate forming the metal honeycomb core body includes a solder material coated in spots or stripes at peaks of corrugation of the corrugated plate. The solder material in the joined portion of the flat plate and the corrugated plate has a thickness of less than 100 .mu.m, the positions of the joined portions are different between the surface and backside of the flat plate and corrugated plate, and the joined portions are present through an unjoined area having a length of more than 5% of the length of the metal honeycomb core body from an end face of the metal honeycomb core body at the exhaust gas inlet side.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: January 14, 1997
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Yoshikazu Koshiba, Yasuhide Kuroda, Yukio Aoki, Tsuyoshi Minakata, Masaru Iizuka