Patents by Inventor Kazuhisa Tanaka

Kazuhisa Tanaka 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: 10396280
    Abstract: A semiconductor memory device includes a plurality of first interconnections extending in a first direction, and a second interconnection extending in a second direction different from the first direction. The device further includes a resistance change film provided between the plurality of first interconnections and the second interconnection, the resistance change film including (a) silicon and a semiconductor layer including one or more elements selected from among oxygen, carbon, nitrogen, phosphorus, boron, and germanium, or (b) a first layer containing the germanium and a second layer containing the silicon.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: August 27, 2019
    Assignee: Toshiba Memory Corporation
    Inventors: Shinji Mori, Masayuki Tanaka, Kazuhiro Matsuo, Kenichiro Toratani, Keiichi Sawa, Kazuhisa Matsuda, Atsushi Takahashi, Yuta Saito
  • Publication number: 20190225531
    Abstract: A base material for a disk roll containing a layered silicate, in which the layered silicate is constituted to contain two or more kinds of minerals having an interlayer distance exceeding 10 angstroms. A base material for a disk roll is excellent in the compressive strength and wear resistance thereby.
    Type: Application
    Filed: July 12, 2017
    Publication date: July 25, 2019
    Applicant: NICHIAS CORPORATION
    Inventors: Ryo TANAKA, Shigeru NAKAMA, Kazuhisa WATANABE
  • Patent number: 9880572
    Abstract: A semiconductor integrated circuit, supplied with a power source voltage generated by a power supplier and having a level determined in accordance with an analog signal, includes: an output unit outputting, as the analog signal, an output voltage signal indicating the power source voltage; an input unit including an input interface identical in specifications to an output interface of the output unit, and receiving an input signal indicating a voltage and input from an outside of the semiconductor integrated circuit; and a voltage control circuit generating the output voltage signal, based on the input signal and operating voltage information indicating a voltage required for an operation of the semiconductor integrated circuit.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: January 30, 2018
    Assignee: SOCIONEXT INC.
    Inventors: Yoshinori Okajima, Takahiro Ichinomiya, Kazuhisa Tanaka, Masayuki Taniyama, Hidemi Harayama, Takeshi Yado
  • Publication number: 20170336816
    Abstract: A semiconductor integrated circuit, supplied with a power source voltage generated by a power supplier and having a level determined in accordance with an analog signal, includes: an output unit outputting, as the analog signal, an output voltage signal indicating the power source voltage; an input unit including an input interface identical in specifications to an output interface of the output unit, and receiving an input signal indicating a voltage and input from an outside of the semiconductor integrated circuit; and a voltage control circuit generating the output voltage signal, based on the input signal and operating voltage information indicating a voltage required for an operation of the semiconductor integrated circuit.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 23, 2017
    Inventors: Yoshinori OKAJIMA, Takahiro ICHINOMIYA, Kazuhisa TANAKA, Masayuki TANIYAMA, Hidemi HARAYAMA, Takeshi YADO
  • Patent number: 9766640
    Abstract: A semiconductor integrated circuit, supplied with a power source voltage generated by a power supplier and having a level determined in accordance with an analog signal, includes: an output unit outputting, as the analog signal, an output voltage signal indicating the power source voltage; an input unit including an input interface identical in specifications to an output interface of the output unit, and receiving an input signal indicating a voltage and input from an outside of the semiconductor integrated circuit; and a voltage control circuit generating the output voltage signal, based on the input signal and operating voltage information indicating a voltage required for an operation of the semiconductor integrated circuit.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: September 19, 2017
    Assignee: SOCIONEXT INC.
    Inventors: Yoshinori Okajima, Takahiro Ichinomiya, Kazuhisa Tanaka, Masayuki Taniyama, Hidemi Harayama, Takeshi Yado
  • Publication number: 20160179111
    Abstract: A semiconductor integrated circuit, supplied with a power source voltage generated by a power supplier and having a level determined in accordance with an analog signal, includes: an output unit outputting, as the analog signal, an output voltage signal indicating the power source voltage; an input unit including an input interface identical in specifications to an output interface of the output unit, and receiving an input signal indicating a voltage and input from an outside of the semiconductor integrated circuit; and a voltage control circuit generating the output voltage signal, based on the input signal and operating voltage information indicating a voltage required for an operation of the semiconductor integrated circuit.
    Type: Application
    Filed: February 25, 2016
    Publication date: June 23, 2016
    Inventors: Yoshinori OKAJIMA, Takahiro ICHINOMIYA, Kazuhisa TANAKA, Masayuki TANIYAMA, Hidemi HARAYAMA, Takeshi YADO
  • Publication number: 20120200781
    Abstract: In a digital broadcast receiving apparatus, a channel selection and demodulation section performs channel selection and demodulation processing for a broadcast wave of a digital broadcast received via an antenna. A microcomputer reads data stored in a nonvolatile memory via an access bus, stores a program included in the read data into a volatile memory, and executes the program. The digital broadcast receiving apparatus is configured to permit retrieval of transfer data on the access bus by the channel selection and demodulation section, and the channel selection and demodulation section recognizes a parameter used for the channel selection and demodulation processing and acquires the parameter, out of the transfer data on the access bus.
    Type: Application
    Filed: April 13, 2012
    Publication date: August 9, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Kazuhisa TANAKA
  • Patent number: 8210239
    Abstract: A continuous casting method of molten metal using electromagnetic force to improve the cast slab surface properties and reduce the nonmetallic inclusions and bubbles trapped inside the cast slab is provided. An alternating current is run through an electromagnetic coil arranged around a casting mold so as to surround a casting space to control the meniscus shape to improve the cast slab surface properties. The discharge ports of a submerged entry nozzle are oriented upward and the direction of the discharge flow from the discharge ports is above the intersection of the casting mold short side and meniscus.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: July 3, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Takehiko Toh, Masahiro Tani, Kazuhisa Tanaka, Shinichi Fukunaga
  • Patent number: 8172114
    Abstract: In a insert-type continuous casting nozzle comprising a highly functional layer formed to have a high corrosion resistance, a high anti-attachment capability, etc., and provided to define an inner bore thereof, the present invention is directed to providing a refractory material (mortar) for an intermediate layer of the continuous casting nozzle, which has a property capable of fixing an inner bore-side layer to an outer periphery-side layer (a nozzle body) of the continuous casting nozzle, while preventing the occurrence of expansion splitting in the outer periphery-side layer due to a difference in thermal expansion between the inner bore-side and outer periphery-side layers, and a continuous casting nozzle using the refractory material for the intermediate layer.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: May 8, 2012
    Assignee: Krosakiharima Corporation
    Inventors: Katsumi Morikawa, Akinari Sasaki, Yoshitaka Hiraiwa, Keiichiro Neba, Takashi Sadano, Shinichi Fukunaga, Kazuhisa Tanaka
  • Publication number: 20100084441
    Abstract: In a insert-type continuous casting nozzle comprising a highly functional layer formed to have a high corrosion resistance, a high anti-attachment capability, etc., and provided to define an inner bore thereof, the present invention is directed to providing a refractory material (mortar) for an intermediate layer of the continuous casting nozzle, which has a property capable of fixing an inner bore-side layer to an outer periphery-side layer (a nozzle body) of the continuous casting nozzle, while preventing the occurrence of expansion splitting in the outer periphery-side layer due to a difference in thermal expansion between the inner bore-side and outer periphery-side layers, and a continuous casting nozzle using the refractory material for the intermediate layer.
    Type: Application
    Filed: July 27, 2009
    Publication date: April 8, 2010
    Applicants: KROSAKIHARIMA CORPORATION, NIPPON STEEL CORPORATION
    Inventors: Katsumi MORIKAWA, Akinari SASAKI, Yoshitaka HIRAIWA, Keiichiro NEBA, Takashi SADANO, Shinichi FUKUNAGA, Kazuhisa TANAKA
  • Publication number: 20100059197
    Abstract: The present invention provides a continuous casting method of molten metal using electromagnetic force to improve the cast slab surface properties and reduce the nonmetallic inclusions and bubbles trapped inside the cast slab. An alternating current is run through an electromagnetic coil 4 arranged around a casting mold 1 so as to surround a casting space 8 to control the meniscus shape to improve the cast slab surface properties, the discharge ports 6 of a submerged entry nozzle 5 are made upward oriented, and the direction of the discharge flow 14 from the discharge ports 6 is made one to above the intersection A of the casting mold short side and meniscus. Due to this, the nonmetallic inclusions and bubbles in the discharge flow are absorbed by the continuous casting mold flux of the meniscus 11 at the part of the meniscus reached.
    Type: Application
    Filed: December 3, 2007
    Publication date: March 11, 2010
    Inventors: Takehiko Toh, Masahiro Tani, Kazuhisa Tanaka, Shinichi Fukunaga
  • Patent number: 7657681
    Abstract: In an arbitration circuit in which a shared circuit such as a memory is used exclusively by one of a plurality of functional blocks at a time, an access reservation request is issued from one of the functional blocks, and the access request associated with the access reservation request is reserved. Thereafter, when an access request is issued from another functional block, it is determined which one of the access reservation request and the access request from these functional blocks takes precedence. For example, if the access request from the latter functional block has a low priority level, the access reservation request is selected and the circuit waits for an access request from the functional block which has issued this access reservation request. In this manner, it is possible to avoid cancellation of a once-accepted access request and waiting for a high-priority access request.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: February 2, 2010
    Assignee: Panasonic Corporation
    Inventor: Kazuhisa Tanaka
  • Patent number: 7329992
    Abstract: A discharge lamp 50 comprises a luminous bulb 10 in which a luminous material 18 is encapsulated and a pair of electrodes 12 are arranged to be opposed to each other, and sealing parts (11a, 11b) that are formed at both ends of the luminous bulb 10 and in which metal foil structures 13 electrically connected to the pair of electrodes 12, respectively, are sealed. At least one of the metal foil structures 13 is composed of a first metal foil 13a, a second metal foil 13b and a metal bar 21 coupling both of them. At least one sealing part 11b of the sealing parts includes a cavity 20 around the position where in the sealing part the metal bar 21 is located, and at least a rare gas is encapsulated in the cavity 20.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: February 12, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryo Minamihata, Kazuhisa Tanaka, Tsuyoshi Nagakura, Yoshitaka Kurimoto, Makoto Horiuchi
  • Patent number: 7151784
    Abstract: A demultiplexer circuit which can simultaneously demultiplex plural pieces of input data while minimizing the circuit scale. The demultiplexer circuit includes an input line identification information addition circuit 2 for giving input line identification information to input data which have data identification information and are inputted through plural input lines 1, respectively; a multiplexer 4 for outputting the input data which have been given the input line identification information, respectively, by the input line identification information addition circuit 2 through one common line 5; a filter 6 for filtering the data outputted from the multiplexer 4 on the basis of the input line identification information and the data identification information at one time; and a filter table 7 that contains filtering conditions which are used in the filter 6.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: December 19, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tomoya Sato, Kazuhisa Tanaka, Norihiko Mizobata
  • Publication number: 20050097281
    Abstract: In an arbitration circuit in which a shared circuit such as a memory is used exclusively by one of a plurality of functional blocks at a time, an access reservation request is issued from one of the functional blocks, and the access request associated with the access reservation request is reserved. Thereafter, when an access request is issued from another functional block, it is determined which one of the access reservation request and the access request from these functional blocks takes precedence. For example, if the access request from the latter functional block has a low priority level, the access reservation request is selected and the circuit waits for an access request from the functional block which has issued this access reservation request. In this manner, it is possible to avoid cancellation of a once-accepted access request and waiting for a high-priority access request.
    Type: Application
    Filed: November 3, 2004
    Publication date: May 5, 2005
    Inventor: Kazuhisa Tanaka
  • Publication number: 20040256991
    Abstract: A discharge lamp 50 comprises a luminous bulb 10 in which a luminous material 18 is encapsulated and a pair of electrodes 12 are arranged to be opposed to each other, and sealing parts (11a, 11b) that are formed at both ends of the luminous bulb 10 and in which metal foil structures 13 electrically connected to the pair of electrodes 12, respectively, are sealed. At least one of the metal foil structures 13 is composed of a first metal foil 13a, a second metal foil 13b and a metal bar 21 coupling both of them. At least one sealing part 11b of the sealing parts includes a cavity 20 around the position where in the sealing part the metal bar 21 is located, and at least a rare gas is encapsulated in the cavity 20.
    Type: Application
    Filed: March 30, 2004
    Publication date: December 23, 2004
    Inventors: Ryo Minamihata, Kazuhisa Tanaka, Tsuyoshi Nakagura, Yoshitaka Kurimoto, Makoto Horiuchi
  • Patent number: 6817920
    Abstract: A discharge lamp electrode, a discharge lamp for which the electrode is used, and a method for producing a discharge lamp electrode with increased productivity are disclosed. With the disclosed discharge lamp electrode, deformations in its end portion are suppressed, so that the electrode life is extended. For the discharge lamp electrode 106, tungsten wires are wound around an electrode rod 111 in the same turning direction and form a first-layer coil 112 and a second-layer coil 113. A tungsten wire forming the second-layer coil 113 is wound along a spiral valley between adjacent turns in the first-layer coil 112.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: November 16, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinobu Furuta, Yoshitaka Kurimoto, Kazuhisa Tanaka, Tatsuya Taniwaki
  • Patent number: 6794600
    Abstract: A plasma torch used for heating a molten steel has an outer cylinder is provided. The torch includes a double tube, the bottom of which is blocked annularly. The torch also includes a bottomed cylindrical anode electrode that is installed within the outer cylinder with a gap existing between the anode electrode and the inside of the double tube. The plasma torch is provided such that pure copper is not used as a material for the anode electrode, the material has a softening point exceeding 150° C., and the ratio of an electric conductivity D of the anode electrode 28 to an electric conductivity N of the outer cylinder satisfies the formula: 0.2≦D/N<1.0. The plasma torch prevents the melting loss and wear of the anode electrode caused by the splashes and the heat produced in the anode electrode, suppresses generation of a side arc, shows an extended life, and stabilizes the casting operation and improves the quality of the slab.
    Type: Grant
    Filed: August 16, 2003
    Date of Patent: September 21, 2004
    Assignee: Nippon Steel Corporation
    Inventors: Shinichi Fukunaga, Ryoji Nishihara, Kazuhisa Tanaka, Mitsuji Asano, Kazunori Yasumitsu, Yuji Hiramoto, Hiroyuki Mitake, Takeshi Kawachi
  • Publication number: 20040074880
    Abstract: A plasma torch 20a used for heating a molten steel has an outer cylinder 26 composed of a double tube 21, the bottom of which is blocked annularly, and a bottomed cylindrical anode electrode 28 that is installed within the outer cylinder 26 with a gap existing between the anode electrode 28 and the inside of the double tube 21, the plasma torch being characterized in that pure copper is not used as a material for the anode electrode 28, the material has a softening point exceeding 150° C., and the ratio of an electric conductivity D of the anode electrode 28 to an electric conductivity N of the outer cylinder 26 satisfies the formula: 0.2≦D/N<1.0. The plasma torch prevents the melting loss and wear of the anode electrode caused by the splashes and the heat produced in the anode electrode, suppresses generation of a side arc, shows an extended life, and stabilizes the casting operation and improves the quality of the slab.
    Type: Application
    Filed: August 16, 2003
    Publication date: April 22, 2004
    Inventors: Shinichi Fukunaga, Ryoji Nishihara, Kazuhisa Tanaka, Mitsuji Asano, Kazunori Yasumitsu, Yuji Hiramoto, Hiroyuki Mitake, Takeshi Kawachi
  • Publication number: 20030016704
    Abstract: A demultiplexer circuit which can simultaneously demultiplex plural pieces of input data while minimizing the circuit scale. The demultiplexer circuit includes an input line identification information addition circuit 2 for giving input line identification information to input data which have data identification information and are inputted through plural input lines 1, respectively; a multiplexer 4 for outputting the input data which have been given the input line identification information, respectively, by the input line identification information addition circuit 2 through one common line 5; a filter 6 for filtering the data outputted from the multiplexer 4 on the basis of the input line identification information and the data identification information at one time; and a filter table 7 that contains filtering conditions which are used in the filter 6.
    Type: Application
    Filed: July 17, 2002
    Publication date: January 23, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tomoya Sato, Kazuhisa Tanaka, Norihiko Mizobata