Patents by Inventor Tatsuya Kanda

Tatsuya Kanda 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: 9305736
    Abstract: Provided is a phosphor for a dispersion-type EL that may be manufactured in a simple process and may provide stable, high brightness and light emission efficiency. The phosphor for a dispersion-type EL according to the present invention includes a mixture of an electron-accepting phosphor particle (4A) and an electron-donating phosphor particle (4B). The electron-accepting phosphor particle (4A) includes a base particle and an acceptor element added thereto, and the electron-donating phosphor particle (4B) includes a base particle and a donor element added thereto. For example, the base particle is a ZnS particle, the acceptor element is Cu, and the donor element is Cl or Al.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: April 5, 2016
    Assignee: TAZMO CO., LTD.
    Inventors: Koichi Wani, Tatsuya Kanda, Emi Hashimoto, Kazushi Kawakami, Sadahiro Yagishita, Fumitaka Iwakura, Taku Nishikawa
  • Publication number: 20140138590
    Abstract: Provided is a phosphor for a dispersion-type EL that may be manufactured in a simple process and may provide stable, high brightness and light emission efficiency. The phosphor for a dispersion-type EL according to the present invention includes a mixture of an electron-accepting phosphor particle (4A) and an electron-donating phosphor particle (4B). The electron-accepting phosphor particle (4A) includes a base particle and an acceptor element added thereto, and the electron-donating phosphor particle (4B) includes a base particle and a donor element added thereto. For example, the base particle is a ZnS particle, the acceptor element is Cu, and the donor element is Cl or Al.
    Type: Application
    Filed: July 11, 2012
    Publication date: May 22, 2014
    Applicant: TAZMO CO., LTD.
    Inventors: Koichi Wani, Tatsuya Kanda, Emi Hashimoto, Kazushi Kawakami, Sadahiro Yagishita, Fumitaka Iwakura, Taku Nishikawa
  • Patent number: 8077537
    Abstract: Provided is a memory device in which the decrease of the effective bandwidth caused by the refresh operation of the memory device has been solved, a memory controller of the memory device, and a memory system thereof.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: December 13, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Tomohiro Kawakubo, Syusaku Yamaguchi, Hitoshi Ikeda, Toshiya Uchida, Hiroyuki Kobayashi, Tatsuya Kanda, Yoshinobu Yamamoto, Satoru Shirakawa, Tetsuo Miyamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Patent number: 8015389
    Abstract: An image memory, image memory system, and memory controller that are capable of efficiently accessing a rectangular area of two-dimensionally arrayed data are provided. The memory device has: a memory cell array that has a plurality of memory unit areas, each of which is selected by addresses; a plurality of input/output terminals; and an input/output unit provided between the memory cell array and the plurality of input/output terminals.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: September 6, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Takahiko Sato, Toshiya Uchida, Tatsuya Kanda, Tetsuo Miyamoto, Satoru Shirakawa, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Patent number: 8004921
    Abstract: Provided is a memory device in which the decrease of the effective bandwidth caused by the refresh operation of the memory device has been solved, a memory controller of the memory device, and a memory system thereof.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: August 23, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Tomohiro Kawakubo, Syusaku Yamaguchi, Hitoshi Ikeda, Toshiya Uchida, Hiroyuki Kobayashi, Tatsuya Kanda, Yoshinobu Yamamoto, Satoru Shirakawa, Tetsuo Miyamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Patent number: 7814294
    Abstract: An image memory, image memory system, and memory controller that are capable of efficiently accessing a rectangular area of two-dimensionally arrayed data are provided. The memory device has: a memory cell array that has a plurality of memory unit areas, each of which is selected by addresses; a plurality of input/output terminals; and an input/output unit provided between the memory cell array and the plurality of input/output terminals.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: October 12, 2010
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Takahiko Sato, Toshiya Uchida, Tatsuya Kanda, Tetsuo Miyamoto, Satoru Shirakawa, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Patent number: 7774577
    Abstract: An image memory, image memory system, and memory controller that are capable of efficiently accessing a rectangular area of two-dimensionally arrayed data are provided. The memory device has: a memory cell array that has a plurality of memory unit areas, each of which is selected by addresses; a plurality of input/output terminals; and an input/output unit provided between the memory cell array and the plurality of input/output terminals.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: August 10, 2010
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Takahiko Sato, Toshiya Uchida, Tatsuya Kanda, Tetsuo Miyamoto, Satoru Shirakawa, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Publication number: 20100172200
    Abstract: Provided is a memory device in which the decrease of the effective bandwidth caused by the refresh operation of the memory device has been solved, a memory controller of the memory device, and a memory system thereof.
    Type: Application
    Filed: November 4, 2009
    Publication date: July 8, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Tomohiro KAWAKUBO, Syusaku Yamaguchi, Hitoshi Ikeda, Toshiya Uchida, Hiroyuki Kobayashi, Tatsuya Kanda, Yoshinobu Yamamoto, Satoru Shirakawa, Tetsuo Miyamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Publication number: 20100146201
    Abstract: Provided is a memory device in which the decrease of the effective bandwidth caused by the refresh operation of the memory device has been solved, a memory controller of the memory device, and a memory system thereof.
    Type: Application
    Filed: November 4, 2009
    Publication date: June 10, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Tomohiro Kawakubo, Syusaku Yamaguchi, Hitoshi Ikeda, Toshiya Uchida, Hiroyuki Kobayashi, Tatsuya Kanda, Yoshinobu Yamamoto, Satoru Shirakawa, Tetsuo Miyamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Patent number: 7729200
    Abstract: The memory device has: a plurality of banks, each of which has a memory cell array having a plurality of page areas that are selected by row addresses respectively, and each of which is selected by a bank address; a row controller that controls activation of the page areas within each of the banks in response to a first operation code; and a group of data input/output terminals. A memory unit area within each of the activated page areas is accessed based on the column address. The row controller generates bank activation signals for the plurality of banks in response to multi-bank information data and a supplied bank address that are supplied along with the first command, and generates the row address of each of the plurality of banks in response to the supplied bank address and a supplied row address. The plurality of banks activate the page areas in response to the bank activation signals and the row addresses generated by the row address calculator.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: June 1, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Hitoshi Ikeda, Takahiko Sato, Tatsuya Kanda, Toshiya Uchida, Hiroyuki Kobayashi, Satoru Shirakawa, Tetsuo Miyamoto, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Patent number: 7684258
    Abstract: To perform mask control of data signals without increasing the number of external terminals even when the number of bits in a data mask signal is large, an address input circuit sequentially receives a first address signal, a second address signal, and a first data mask signal supplied to an address terminal in synchronization with transition edges of a clock signal. Namely, the first data mask signal is supplied to the address terminal at a different timing from timing at which the first and second address signals are received. The first address signal, second address signal, and first data mask signal are output, for example, from a controller accessing a semiconductor memory. A data input/output circuit inputs/outputs data via a data terminal and masks at least either of write data to memory cells and read data from the memory cells in accordance with logic of the first data mask signal.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: March 23, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Tatsuya Kanda, Kotoku Sato
  • Patent number: 7668040
    Abstract: The memory device has: a plurality of banks, each of which has a memory cell array having a plurality of page areas that are selected by row addresses respectively, and each of which is selected by a bank address; a row controller that controls activation of the page areas within each of the banks in response to a first operation code; and a group of data input/output terminals. A memory unit area within each of the activated page areas is accessed based on the column address. The row controller generates bank activation signals for the plurality of banks in response to multi-bank information data and a supplied bank address that are supplied along with the first command, and generates the row address of each of the plurality of banks in response to the supplied bank address and a supplied row address. The plurality of banks activate the page areas in response to the bank activation signals and the row addresses generated by the row address calculator.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: February 23, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Hitoshi Ikeda, Takahiko Sato, Tatsuya Kanda, Toshiya Uchida, Hiroyuki Kobayashi, Satoru Shirakawa, Tetsuo Miyamoto, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Publication number: 20090027988
    Abstract: An image memory, image memory system, and memory controller that are capable of efficiently accessing a rectangular area of two-dimensionally arrayed data are provided. The memory device has: a memory cell array that has a plurality of memory unit areas, each of which is selected by addresses; a plurality of input/output terminals; and an input/output unit provided between the memory cell array and the plurality of input/output terminals.
    Type: Application
    Filed: December 19, 2007
    Publication date: January 29, 2009
    Applicant: Toyoda Gosei Co., Ltd.
    Inventors: Takahiko Sato, Toshiya Uchida, Tatsuya Kanda, Tetsuo Miyamoto, Satoru Shirakawa, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Patent number: 7471585
    Abstract: A refresh signal is output in response to a refresh request generated at predetermined cycles, and a refresh operation is performed. The refresh operation ends when a conflict occurs between an access request and the refresh request. Consequently, an access operation corresponding to the access request can be started earlier with a reduction in access time. The access time can be reduced further by changing the end time of the refresh operation in accordance with the timing of supply of the access request. Since a test circuit for notifying the state of the refresh operation to exterior is formed, the operation margin of the refresh operation can be evaluated in a short time. As a result, it is possible to reduce the development period of the semiconductor memory.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: December 30, 2008
    Assignee: Fujitsu Limited
    Inventors: Naoharu Shinozaki, Tatsuya Kanda, Takahiko Sato, Akihiro Funyu
  • Publication number: 20080211689
    Abstract: An illegal-parking-management portable terminal includes a storage unit, an extracting unit, and a selecting unit. The storage unit stores therein facility information on a facility relevant to illegal parking and an illegal-parking application rule that defines illegal-parking condition for each penalty article. The extracting unit extracts, from the facility information, information on a facility within a predetermined range from a position specified as a vehicle parking position on a map displayed on a display unit. The selecting unit compares the extracted information with the illegal-parking application rule, and selects a penalty article to be applied to illegal parking of a vehicle.
    Type: Application
    Filed: May 1, 2008
    Publication date: September 4, 2008
    Applicants: FUJITSU LIMITED, FFC LIMITED
    Inventors: Kunikazu Takahashi, Tatsuya Kanda, Masahiro Oota, Levan Higashigawa
  • Publication number: 20080189467
    Abstract: The memory device has: a plurality of banks, each of which has a memory cell array having a plurality of page areas that are selected by row addresses respectively, and each of which is selected by a bank address; a row controller that controls activation of the page areas within each of the banks in response to a first operation code; and a group of data input/output terminals. A memory unit area within each of the activated page areas is accessed based on the column address. The row controller generates bank activation signals for the plurality of banks in response to multi-bank information data and a supplied bank address that are supplied along with the first command, and generates the row address of each of the plurality of banks in response to the supplied bank address and a supplied row address. The plurality of banks activate the page areas in response to the bank activation signals and the row addresses generated by the row address calculator.
    Type: Application
    Filed: December 18, 2007
    Publication date: August 7, 2008
    Inventors: Hitoshi Ikeda, Takahiko Sato, Tatsuya Kanda, Toshiya Uchida, Hiroyuki Kobayashi, Satoru Shirakawa, Tetsuo Miyamoto, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Publication number: 20080181027
    Abstract: An image memory, image memory system, and memory controller that are capable of efficiently accessing a rectangular area of two-dimensionally arrayed data are provided. The memory device has: a memory cell array that has a plurality of memory unit areas, each of which is selected by addresses; a plurality of input/output terminals; and an input/output unit provided between the memory cell array and the plurality of input/output terminals.
    Type: Application
    Filed: December 19, 2007
    Publication date: July 31, 2008
    Inventors: Takahiro Sato, Toshiya Uchida, Tatsuya Kanda, Tetsuo Miyamoto, Satoru Shirakawa, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Publication number: 20080151678
    Abstract: The memory device has: a plurality of banks, each of which has a memory cell array having a plurality of page areas that are selected by row addresses respectively, and each of which is selected by a bank address; a row controller that controls activation of the page areas within each of the banks in response to a first operation code; and a group of data input/output terminals. A memory unit area within each of the activated page areas is accessed based on the column address. The row controller generates bank activation signals for the plurality of banks in response to multi-bank information data and a supplied bank address that are supplied along with the first command, and generates the row address of each of the plurality of banks in response to the supplied bank address and a supplied row address. The plurality of banks activate the page areas in response to the bank activation signals and the row addresses generated by the row address calculator.
    Type: Application
    Filed: February 16, 2007
    Publication date: June 26, 2008
    Inventors: Hitoshi Ikeda, Takahiko Sato, Tatsuya Kanda, Toshiya Uchida, Hiroyuki Kobayashi, Satoru Shirakawa, Tetsuo Miyamoto, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Publication number: 20080151670
    Abstract: Provided is a memory device in which the decrease of the effective bandwidth caused by the refresh operation of the memory device has been solved, a memory controller of the memory device, and a memory system thereof.
    Type: Application
    Filed: February 23, 2007
    Publication date: June 26, 2008
    Inventors: Tomohiro Kawakubo, Syusaku Yamaguchi, Hitoshi Ikeda, Toshiya Uchida, Hiroyuki Kobayashi, Tatsuya Kanda, Yoshinobu Yamamoto, Satoru Shirakawa, Tetsuo Miyamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato
  • Publication number: 20080151677
    Abstract: An image memory, image memory system, and memory controller that are capable of efficiently accessing a rectangular area of two-dimensionally arrayed data are provided. The memory device has: a memory cell array that has a plurality of memory unit areas, each of which is selected by addresses; a plurality of input/output terminals; and an input/output unit provided between the memory cell array and the plurality of input/output terminals.
    Type: Application
    Filed: January 26, 2007
    Publication date: June 26, 2008
    Inventors: Takahiko Sato, Toshiya Uchida, Tatsuya Kanda, Tetsuo Miyamoto, Satoru Shirakawa, Yoshinobu Yamamoto, Tatsushi Otsuka, Hidenaga Takahashi, Masanori Kurita, Shinnosuke Kamata, Ayako Sato