Patents by Inventor Toshikazu Kondo

Toshikazu Kondo 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).

  • Publication number: 20130326151
    Abstract: To reduce power consumption of a computer or the like, a nonvolatile memory divided into a plurality of segments is applied to main memory used for virtual storage management. Thus, power supply even to a segment having a physical address that is being used can be stopped. As a result, power consumption of the computer or the like performing virtual storage management can be reduced.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 5, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuji Iwaki, Toshikazu Kondo
  • Publication number: 20130315021
    Abstract: A semiconductor device capable of simply performing power gating and a driving method thereof are provided. Power gating is started passively (automatically in the case of satisfying predetermined conditions). Specifically, the semiconductor device includes a transistor for selecting whether a power source voltage is supplied or not to a functional circuit. The power gating is started by turning off the transistor in the case where a voltage between a source and a drain is less than or equal to a predetermined voltage. Therefore, complicated operation is not needed at the time of starting power gating. Specifically, it is possible to start power gating without a process for predicting the timing at which an arithmetic operation performed in the functional circuit is terminated. As a result, it is possible to start power gating easily.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 28, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshikazu Kondo, Jun Koyama
  • Publication number: 20130299825
    Abstract: An object is to reduce parasitic capacitance of a signal line included in a liquid crystal display device. A transistor including an oxide semiconductor layer is used as a transistor provided in each pixel. Note that the oxide semiconductor layer is an oxide semiconductor layer which is highly purified by thoroughly removing impurities (hydrogen, water, or the like) which become electron suppliers (donors). Thus, the amount of leakage current (off-state current) can be reduced when the transistor is off. Therefore, a voltage applied to a liquid crystal element can be held without providing a capacitor in each pixel. In addition, a capacitor wiring extending to a pixel portion of the liquid crystal display device can be eliminated. Therefore, parasitic capacitance in a region where the signal line and the capacitor wiring intersect with each other can be eliminated.
    Type: Application
    Filed: July 18, 2013
    Publication date: November 14, 2013
    Inventors: Toshikazu KONDO, Jun KOYAMA, Shunpei YAMAZAKI
  • Patent number: 8502226
    Abstract: An object is to reduce parasitic capacitance of a signal line included in a liquid crystal display device. A transistor including an oxide semiconductor layer is used as a transistor provided in each pixel. Note that the oxide semiconductor layer is an oxide semiconductor layer which is highly purified by thoroughly removing impurities (hydrogen, water, or the like) which become electron suppliers (donors). Thus, the amount of leakage current (off-state current) can be reduced when the transistor is off. Therefore, a voltage applied to a liquid crystal element can be held without providing a capacitor in each pixel. In addition, a capacitor wiring extending to a pixel portion of the liquid crystal display device can be eliminated. Therefore, parasitic capacitance in a region where the signal line and the capacitor wiring intersect with each other can be eliminated.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 6, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshikazu Kondo, Jun Koyama, Shunpei Yamazaki
  • Patent number: 8466222
    Abstract: Provided are a rubber composition for sidewalls containing 100 parts by mass of a rubber component consisting of at least a natural rubber or a modified natural rubber, 5 parts by mass or less of carbon black, 10 to 40 parts by mass of silica and 5 to 30 parts by mass of an inorganic filler component composed of one kind or two or more kinds of inorganic filler excluding carbon black and silica, and a pneumatic tire provided with a sidewall rubber prepared using the rubber composition. The used amounts of raw materials derived from petroleum resources have been reduced in this rubber composition. Moreover, the rubber composition exhibits low fuel consumption due to low rolling resistance and good flex crack growth resistance.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: June 18, 2013
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Toshikazu Kondo
  • Patent number: 8362563
    Abstract: In a thin film transistor, an increase in off current or negative shift of the threshold voltage is prevented. In the thin film transistor, a buffer layer is provided between an oxide semiconductor layer and each of a source electrode layer and a drain electrode layer. The buffer layer includes a metal oxide layer which is an insulator or a semiconductor over a middle portion of the oxide semiconductor layer. The metal oxide layer functions as a protective layer for suppressing incorporation of impurities into the oxide semiconductor layer. Therefore, in the thin film transistor, an increase in off current or negative shift of the threshold voltage can be prevented.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: January 29, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshikazu Kondo, Hideyuki Kishida
  • Publication number: 20120286278
    Abstract: In a thin film transistor, an increase in off current or negative shift of the threshold voltage is prevented. In the thin film transistor, a buffer layer is provided between an oxide semiconductor layer and each of a source electrode layer and a drain electrode layer. The buffer layer includes a metal oxide layer which is an insulator or a semiconductor over a middle portion of the oxide semiconductor layer. The metal oxide layer functions as a protective layer for suppressing incorporation of impurities into the oxide semiconductor layer. Therefore, in the thin film transistor, an increase in off current or negative shift of the threshold voltage can be prevented.
    Type: Application
    Filed: July 26, 2012
    Publication date: November 15, 2012
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Toshikazu KONDO, Hideyuki KISHIDA
  • Patent number: 8247276
    Abstract: In a thin film transistor, an increase in off current or negative shift of the threshold voltage is prevented. In the thin film transistor, a buffer layer is provided between an oxide semiconductor layer and each of a source electrode layer and a drain electrode layer. The buffer layer includes a metal oxide layer which is an insulator or a semiconductor over a middle portion of the oxide semiconductor layer. The metal oxide layer functions as a protective layer for suppressing incorporation of impurities into the oxide semiconductor layer. Therefore, in the thin film transistor, an increase in off current or negative shift of the threshold voltage can be prevented.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: August 21, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshikazu Kondo, Hideyuki Kishida
  • Publication number: 20120149806
    Abstract: A rubber composition that can improve in good balance the fuel economy, wet-grip performance, and abrasion resistance, and a pneumatic tire that uses this rubber composition are provided. This rubber composition contains a rubber component, and carbon black and/or silica, wherein based on 100% by mass of the rubber component, the rubber component contains 5 to 50% by mass of natural rubber, 0.3 to 10% by mass of an epoxidized natural rubber, and at least 5% by mass of a conjugated diene polymer that has a constituent unit based on a conjugated diene and a constituent unit represented by formula (I) below, at least one terminal of the polymer being modified, and wherein a total content of the carbon black and the silica is 3 to 100 parts by mass per 100 parts by mass of the rubber component.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 14, 2012
    Inventors: Toshikazu KONDO, Jun OKAMOTO, Sakae OKUBO, Ryoichi KASAHARA, Kenji MURATA, Kazuhiro KODAMA, Kazuyuki NISHIOKA
  • Patent number: 8160799
    Abstract: A turbine bypass control method includes: a high-pressure side pressure controller configured to output a first operation amount signal corresponding to a valve opening; a low-pressure side pressure controller configured to output a second operation amount signal corresponding to a valve opening; a high value selector configured to output as a high value operation amount signal, one of the first operation amount signal and the second operation amount signal which indicates a larger opening; a first signal switching unit configured to receive the high value operation amount signal and the second operation amount signal and output a first bypass valve operation amount signal; a second signal switching unit configured to receive the high value operation amount signal and the first operation amount signal and output a second bypass valve operation amount signal; and a rapid opening controller.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: April 17, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Naohiko Ishibashi, Takehiro Ishigaki, Toshikazu Kondo
  • Publication number: 20110241011
    Abstract: A first transistor in which an image signal is input to one of a first source and a first drain through an image signal line and a first scan signal is input to the first gate through a first scan signal line; a capacitor whose one of two electrodes is electrically connected to the other of the first source and the first drain of the first transistor; a second transistor in which one of a second source and a second drain is electrically connected to the other of the first source and the first drain of the first transistor and a second scan signal is input to a second gate through a second scan signal line; and a liquid crystal element whose first electrode is electrically connected to the other of the second source and the second drain of the second transistor.
    Type: Application
    Filed: March 24, 2011
    Publication date: October 6, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Jun KOYAMA, Toshikazu KONDO, Shunpei YAMAZAKI
  • Publication number: 20110230593
    Abstract: The present invention aims to provide a tire rubber composition that achieves a good balance of grip performance (especially, wet grip performance), abrasion resistance, cut and chip resistance, low rolling resistance, and kneadability, and a pneumatic tire using the same. The composition comprise: a rubber component including a styrene-butadiene rubber modified by a compound of formula (1): and a non-modified styrene-butadiene rubber; a filler including silica, the filler being in an amount of 80 parts by mass or less per 100 parts by mass of the rubber component; and sulfur in an amount of 0.5-1.5 parts by mass per 100 parts by mass of the rubber component, the modified styrene-butadiene rubber having a bound styrene content of 20-40% by mass and a vinyl content of 30-65% by mass, and the non-modified styrene-butadiene rubber having a bound styrene content of 25-45% by mass and a vinyl content of 10-50% by mass.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 22, 2011
    Inventor: Toshikazu KONDO
  • Publication number: 20110210327
    Abstract: An object is to reduce parasitic capacitance of a signal line included in a liquid crystal display device. A transistor including an oxide semiconductor layer is used as a transistor provided in each pixel. Note that the oxide semiconductor layer is an oxide semiconductor layer which is highly purified by thoroughly removing impurities (hydrogen, water, or the like) which become electron suppliers (donors). Thus, the amount of leakage current (off-state current) can be reduced when the transistor is off. Therefore, a voltage applied to a liquid crystal element can be held without providing a capacitor in each pixel. In addition, a capacitor wiring extending to a pixel portion of the liquid crystal display device can be eliminated. Therefore, parasitic capacitance in a region where the signal line and the capacitor wiring intersect with each other can be eliminated.
    Type: Application
    Filed: February 17, 2011
    Publication date: September 1, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Toshikazu KONDO, Jun KOYAMA, Shunpei YAMAZAKI
  • Publication number: 20110063339
    Abstract: It is an object to reduce power consumption of a display device which can perform multi-gray scale display and to suppress deterioration of an element included in the display device. The usage of a display device includes a first initialization period in which the gray scale level of an entire pixel portion is converted into a first gray scale level and a second initialization period in which the gray scale level of an entire pixel portion is converted into a second gray scale level. In the first initialization period, scanning of a plurality of signals and weighting of a holding period of each signal are performed. Therefore, the small number of scanning of signals can realize voltage application for an appropriate time with respect to each of a plurality of gray scale storage display elements included in the display device.
    Type: Application
    Filed: September 8, 2010
    Publication date: March 17, 2011
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Atsushi Umezaki, Toshikazu Kondo
  • Publication number: 20100213460
    Abstract: In a thin film transistor, an increase in off current or negative shift of the threshold voltage is prevented. In the thin film transistor, a buffer layer is provided between an oxide semiconductor layer and each of a source electrode layer and a drain electrode layer. The buffer layer includes a metal oxide layer which is an insulator or a semiconductor over a middle portion of the oxide semiconductor layer. The metal oxide layer functions as a protective layer for suppressing incorporation of impurities into the oxide semiconductor layer. Therefore, in the thin film transistor, an increase in off current or negative shift of the threshold voltage can be prevented.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 26, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Toshikazu Kondo, Hideyuki Kishida
  • Publication number: 20100190907
    Abstract: A rubber composition for tires, which includes a rubber component containing a natural rubber component consisting of at least either a natural rubber or an epoxidized natural rubber, and an inorganic filler containing silica, and a pneumatic tire using such a rubber composition for tires are provided. The rubber composition can be used as a rubber composition for clinch apex, and in this case, the rubber component preferably consists of the natural rubber component, with the inorganic filler being contained in a range of 50 to 80 parts by mass and carbon black being contained in a range of 2 to 5 parts by mass relative to 100 parts by mass of the rubber component.
    Type: Application
    Filed: March 7, 2008
    Publication date: July 29, 2010
    Inventors: Yoichi Mizuno, Toshikazu Kondo
  • Publication number: 20100174023
    Abstract: Provided are a rubber composition for sidewalls containing 100 parts by mass of a rubber component consisting of at least a natural rubber or a modified natural rubber, 5 parts by mass or less of carbon black, 10 to 40 parts by mass of silica and 5 to 30 parts by mass of an inorganic filler component composed of one kind or two or more kinds of inorganic filler excluding carbon black and silica, and a pneumatic tire provided with a sidewall rubber prepared using the rubber composition. The used amounts of raw materials derived from petroleum resources have been reduced in this rubber composition. Moreover, the rubber composition exhibits low fuel consumption due to low rolling resistance and good flex crack growth resistance.
    Type: Application
    Filed: March 7, 2008
    Publication date: July 8, 2010
    Inventor: Toshikazu Kondo
  • Publication number: 20090204305
    Abstract: A turbine bypass control method includes: a high-pressure side pressure controller configured to output a first operation amount signal corresponding to a valve opening; a low-pressure side pressure controller configured to output a second operation amount signal corresponding to a valve opening; a high value selector configured to output as a high value operation amount signal, one of the first operation amount signal and the second operation amount signal which indicates a larger opening; a first signal switching unit configured to receive the high value operation amount signal and the second operation amount signal and output a first bypass valve operation amount signal; a second signal switching unit configured to receive the high value operation amount signal and the first operation amount signal and output a second bypass valve operation amount signal; and a rapid opening controller.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 13, 2009
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Naohiko ISHIBASHI, Takehiro ISHIGAKI, Toshikazu KONDO
  • Patent number: 7105277
    Abstract: The present invention aims to provide a printing plate capable of preventing paste of high viscosity adhering to an edge of a squeegee from being transferred to and left on a through hole of a printed circuit board when the paste is being filled by a squeegeeing method. The printing plate has a metal sheet (3) provided with a squeegee cleaning section (7) formed thereon and fixed to the back surface of a slanting area (5) of mask (2) attached to a plate framework (1). The through hole of the printed circuit board is filled with paste only after paste of high viscosity adhering to the edge of the squeegee is removed by the squeegee cleaning section (7), to prevent the paste from being left on the through hole, and thereby achieving the printed circuit board of excellent quality.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: September 12, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiaki Takenaka, Toshihiro Nishii, Hideaki Komoda, Toshikazu Kondo, Shinji Nakamura
  • Patent number: 7066344
    Abstract: A mask film includes a base material, a parting layer and a non-parting portion placed on the base material. Accordingly, an optimum adhesion strength of the mask film and a prepreg sheet can be maintained, and peeling between the mask film and prepreg sheet can be prevented. Further, by preventing the fusing adhesion between the mask film and prepreg sheet due to heat generated when forming penetration holes, a circuit board having an excellent quality is obtained.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: June 27, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiaki Takenaka, Toshikazu Kondo, Kunio Kishimoto, Shinji Nakamura, Fumio Echigo