Patents by Inventor Kazuhiro Shimizu

Kazuhiro Shimizu 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: 7763950
    Abstract: A semiconductor device is configured that a high-withstand voltage semiconductor device and logic circuits are integrated on a single chip and that a high-withstand voltage high-potential island including the high-potential-side logic circuit is separated using multiple partition walls enclosing therearound. The semiconductor device is provided with a multi-trench separation region having a level shift wire region that is used to connect the high-potential-side logic circuit to the high-potential-side electrode of the high-withstand voltage semiconductor device.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: July 27, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Kazuhiro Shimizu
  • Patent number: 7741695
    Abstract: Extending from an upper surface of an n? semiconductor layer on a p? semiconductor substrate to the interface between the n? semiconductor layer and the p? semiconductor substrate, a p+ impurity region is provided. The p+ impurity region defines a high-potential island region, a low-potential island region and a slit region in the n? semiconductor layer. The n? semiconductor layer in the high-potential island region and the n? semiconductor layer in the low-potential island region are connected by the n? semiconductor layer in the slit region, and a logic circuit is formed in the n? semiconductor layer in the high-potential island region. A width in the direction of Y axis of the n? semiconductor layer in the slit region is set to be narrower than a width in the direction of the Y axis of the n? semiconductor layer in the high-potential island region.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: June 22, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Kazuhiro Shimizu
  • Publication number: 20100148823
    Abstract: An RESURF region is formed so as to surround a high-potential logic region with an isolation region interposed therebetween, in which a sense resistance and a first logic circuit which are applied with a high potential are formed in high-potential logic region. On the outside of RESURF region, a second logic circuit region is formed, which is applied with the driving voltage level required for driving a second logic circuit with respect to the ground potential. In RESURF region, a drain electrode of a field-effect transistor is formed along the inner periphery, and a source electrode is formed along the outer periphery. Furthermore, a polysilicon resistance connected to sense resistance is formed in the shape of a spiral from the inner peripheral side toward the outer peripheral side.
    Type: Application
    Filed: May 6, 2009
    Publication date: June 17, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Kazuhiro Shimizu
  • Publication number: 20100080330
    Abstract: Disclosed herein is a receiving apparatus including: first to third position determination sections configured to determine the start position of an FFT interval which serves as a signal interval targeted for FFT by an FFT section; a selection section configured to select one of those start positions of the FFT interval which are determined by the first through the third position determination section; and the FFT section configured to perform FFT on the OFDM time domain signal by regarding the start position selected by the selection section as the start position of the FFT interval in order to generate the first OFDM frequency domain signal.
    Type: Application
    Filed: September 28, 2009
    Publication date: April 1, 2010
    Inventors: Hidetoshi KAWAUCHI, Masayuki Hattori, Toshiyuki Miyauchi, Takashi Yokokawa, Kazuhiro Shimizu, Kazuhisa Funamoto
  • Publication number: 20090288857
    Abstract: Disclosed is a multilayer wiring board in which a copper foil is bonded by a thermocompression bonding onto an insulating layer having a bump for interlayer connection buried therein, and the copper foil and the bump are electrically connected to each other. The copper foil is provided with an oxide film having a thickness of 50 ? to 350 ? on a surface in contact with the bump and an insulating layer. In a manufacturing process, for example, an oxide coating of the copper foil to be subject to the thermocompression bonding is removed by acid cleaning, and then an oxide film having an appropriate thickness is formed by irradiating the copper foil with ultraviolet light. Consequently, reliability in electrical connection between the copper foil and the burn is adequately ensured, while achieving sufficient mechanical connection strength between the copper foil and the insulating layer.
    Type: Application
    Filed: September 29, 2005
    Publication date: November 26, 2009
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventors: Kazuhiro Shimizu, Mitsuyuki Takayasu, Kiyoe Nagai
  • Publication number: 20090256234
    Abstract: A semiconductor device is configured that a high-withstand voltage semiconductor device and logic circuits are integrated on a single chip and that a high-withstand voltage high-potential island including the high-potential-side logic circuit is separated using multiple partition walls enclosing therearound. The semiconductor device is provided with a multi-trench separation region having a level shift wire region that is used to connect the high-potential-side logic circuit to the high-potential-side electrode of the high-withstand voltage semiconductor device.
    Type: Application
    Filed: June 23, 2009
    Publication date: October 15, 2009
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventor: Kazuhiro SHIMIZU
  • Publication number: 20090221254
    Abstract: A reception apparatus including an extraction section; a transmission line characteristic estimation section; an interpolation section; a compensation section; a detection section; and a selection section.
    Type: Application
    Filed: February 26, 2009
    Publication date: September 3, 2009
    Inventors: Hidetoshi Kawauchi, Tadaaki Yuba, Toshiyuki Miyauchi, Takashi Yokokawa, Takuya Okamoto, Tamotsu Ikeda, Koji Naniwada, Kazuhiro Shimizu, Lachlan Bruce Michael
  • Patent number: 7582946
    Abstract: A semiconductor device is configured that a high-withstand voltage semiconductor device (101) and logic circuits (201 and 301) are integrated on a single chip and that a high-withstand voltage high-potential island (402) including the high-potential-side logic circuit (301) is separated using multiple partition walls enclosing therearound. The semiconductor device is provided with a multi-trench separation region (405) having a level shift wire region (404) that is used to connect the high-potential-side logic circuit to the high-potential-side electrode of the high-withstand voltage semiconductor device.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: September 1, 2009
    Assignee: Mitsubishi Denki Kabuhsiki Kaisha
    Inventor: Kazuhiro Shimizu
  • Patent number: 7579647
    Abstract: First and second semiconductor regions are formed apart from each other on a semiconductor body. A stacked gate is formed on the semiconductor body between the first and second semiconductor regions. The stacked gate has a first side surface, a second side surface opposed to the first side surface, and an upper surface. A contact material is buried in an interlayer insulating film above the semiconductor body, to be adjacent to the first side surface of the stacked gate. The contact material contacts the first semiconductor region. A first insulating film is formed on the second side surface and the upper surface, except the first side surface of the stacked gate adjacent to the contact material. A second insulating film is formed on the first side surface of the stacked gate adjacent to the contact material, and the first insulating film.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: August 25, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuhiro Shimizu, Fumitaka Arai
  • Patent number: 7545005
    Abstract: A semiconductor device is provided which is capable of avoiding malfunction and latchup breakdown resulting from negative variation of high-voltage-side floating offset voltage (VS). In the upper surface of an n-type impurity region, a p+-type impurity region is formed between an NMOS and a PMOS and in contact with a p-type well. An electrode resides on the p+-type impurity region and the electrode is connected to a high-voltage-side floating offset voltage (VS). The p+-type impurity region has a higher impurity concentration than the p-type well and is shallower than the p-type well. Between the p+-type impurity region and the PMOS, an n+-type impurity region is formed in the upper surface of the n-type impurity region. An electrode resides on the n+-type impurity region and the electrode is connected to a high-voltage-side floating supply absolute voltage (VB).
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: June 9, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazunari Hatade, Hajime Akiyama, Kazuhiro Shimizu
  • Publication number: 20090110127
    Abstract: A reception apparatus includes: an extraction section; a transmission line characteristic estimation section; an estimation section; a frequency shift amount production section; a control section; an addition section; a first frequency shifting section; a second frequency shifting section; an interpolation section; a compensation section; a detection section; and an operation section.
    Type: Application
    Filed: October 28, 2008
    Publication date: April 30, 2009
    Inventors: Hidetoshi KAWAUCHI, Tadaaki YUBA, Tamotsu IKEDA, Koji NANIWADA, Kazuhiro SHIMIZU, Lachlan Bruce MICHAEL
  • Patent number: 7521982
    Abstract: A drive circuit for driving a power device has a level shift circuit which level-shifts an ON signal and an OFF signal for controlling the power device in ON and OFF states, respectively, and which outputs the level-shifted ON and OFF signals, a mask circuit which stops transmission of the ON and OFF signals when both the ON and OFF signals are lower than a first threshold level, and a short circuit which is provided in a stage before the mask circuit, and which short-circuits a path for transmission of the ON signal and a path for transmission of the OFF signal when both the ON and OFF signals are lower than a second threshold level. The second threshold level is higher than the first threshold level.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: April 21, 2009
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kazuhiro Shimizu
  • Publication number: 20090096091
    Abstract: A semiconductor device manufacturing apparatus is provided with a drawing pattern printing part having a print head which injects a conductive solvent, an insulative solvent and an interface treatment solution. The print head is formed in such a way that desired circuit drawing pattern can be printed on a wafer based on information on the drawing pattern from a wafer testing part, information on the wafer from a storage part and coordinate information from a chip coordinate recognition part. In a semiconductor device manufacturing method according to the present invention, a semiconductor device is manufactured by using the semiconductor device manufacturing apparatus in such a manner that desired circuits are formed through printing process. In the semiconductor device, pad electrodes and so on are formed in such a way that trimming process can be conducted by printing circuit drawing patterns.
    Type: Application
    Filed: December 11, 2008
    Publication date: April 16, 2009
    Inventors: Kazuhiro Shimizu, Hajime Akiyama, Naoki Yasuda
  • Publication number: 20090053269
    Abstract: The present invention provides a novel solid powder which has transparency in its appearance, and has excellent usability and, in addition, excellent feeling of use such as dry feeling and fresh light feeling without sticky feeling during application. It is achieved by a solid powder cosmetic comprising: (A) 25 to 55% by mass of elastic powder mixture; (B) 20 to 40% by mass of non-elastic spherical silicone resin powder with an average particle diameter within the range of 0.1 to 50 ?m; and (C) 25 to 55% by mass of oil, as essential components, wherein (A) the elastic powder mixture comprises one or more types of each (A1) an elastic powder and (A2) a composite powder obtained by coating the periphery of an elastic powder with a non-elastic material, said solid powder cosmetic being obtained by caking a mixed composition of these essential components.
    Type: Application
    Filed: September 7, 2006
    Publication date: February 26, 2009
    Inventor: Kazuhiro Shimizu
  • Patent number: 7481885
    Abstract: A semiconductor device manufacturing apparatus is provided with a drawing pattern printing part having a print head which ejects a conductive solvent, an insulative solvent and an interface treatment solution. The print head is formed in such a way that desired circuit drawing pattern can be printed on a wafer based on information on the drawing pattern from a wafer testing part, information on the wafer from a storage part and coordinate information from a chip coordinate recognition part. In a semiconductor device manufacturing method according to the present invention, a semiconductor device is manufactured by using the semiconductor device manufacturing apparatus in such a manner that desired circuits are formed through printing process. In the semiconductor device, pad electrodes and so on are formed in such a way that trimming process can be conducted by printing circuit drawing patterns.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: January 27, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuhiro Shimizu, Hajime Akiyama, Naoki Yasuda
  • Publication number: 20080272440
    Abstract: A semiconductor device is provided which is capable of avoiding malfunction and latchup breakdown resulting from negative variation of high-voltage-side floating offset voltage (VS). In the upper surface of an n-type impurity region, a p+-type impurity region is formed between an NMOS and a PMOS and in contact with a p-type well. An electrode resides on the p+-type impurity region and the electrode is connected to a high-voltage-side floating offset voltage (VS). The p+-type impurity region has a higher impurity concentration than the p-type well and is shallower than the p-type well. Between the p+-type impurity region and the PMOS, an n+-type impurity region is formed in the upper surface of the n-type impurity region. An electrode resides on the n+-type impurity region and the electrode is connected to a high-voltage-side floating supply absolute voltage (VB).
    Type: Application
    Filed: June 30, 2008
    Publication date: November 6, 2008
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Kazunari HATADE, Hajime AKIYAMA, Kazuhiro SHIMIZU
  • Publication number: 20080265334
    Abstract: A semiconductor device is provided which is capable of avoiding malfunction and latchup breakdown resulting from negative variation of high-voltage-side floating offset voltage (VS). In the upper surface of an n-type impurity region, a p+-type impurity region is formed between an NMOS and a PMOS and in contact with a p-type well. An electrode resides on the p+-type impurity region and the electrode is connected to a high-voltage-side floating offset voltage (VS). The p+-type impurity region has a higher impurity concentration than the p-type well and is shallower than the p-type well. Between the p+-type impurity region and the PMOS, an n+-type impurity region is formed in the upper surface of the n-type impurity region. An electrode resides on the n+-type impurity region and the electrode is connected to a high-voltage-side floating supply absolute voltage (VB).
    Type: Application
    Filed: June 30, 2008
    Publication date: October 30, 2008
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Kazunari HATADE, Hajime AKIYAMA, Kazuhiro SHIMIZU
  • Publication number: 20080258202
    Abstract: A nonvolatile semiconductor memory device includes a semiconductor substrate having a first trench, an element isolation insulating film, a floating gate electrode, a second gate insulating film and a control gate electrode. The element isolation insulating film includes a sidewall having such a height as to be in contact with the floating gate electrode. The floating gate electrode includes a sidewall further including a lower portion opposed to the control gate electrode with the element isolation insulating film and the second gate insulating film being interposed between them. The control gate electrode is buried in the second trench with the second gate insulating film being interposed between them.
    Type: Application
    Filed: April 17, 2008
    Publication date: October 23, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Kazuhiro Shimizu
  • Patent number: 7439122
    Abstract: A p impurity region (3) defines a RESURF isolation region in an n? semiconductor layer (2). A trench isolation structure (8a) and the p impurity region (3) together define a trench isolation region in the n? semiconductor layer (2) in the RESURF isolation region. An nMOS transistor (103) is provided in the trench isolation region. A control circuit is provided in the RESURF isolation region excluding the trench isolation region. An n+ buried impurity region (4) is provided at the interface between the n? semiconductor layer (2) and a p? semiconductor substrate (1), and under an n+ impurity region 7 connected to a drain electrode (14) of the nMOS transistor (103).
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: October 21, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Kazuhiro Shimizu
  • Publication number: 20080251834
    Abstract: In a non-volatile semiconductor memory device and a method for manufacturing the device, each memory cell and its select Tr have the same gate insulating film as a Vcc Tr. Further, the gate electrodes of a Vpp Tr and Vcc Tr are realized by the use of a first polysilicon layer. A material such as salicide or a metal, which differs from second polysilicon (which forms a control gate layer), may be provided on the first polysilicon layer. With the above features, a non-volatile semiconductor memory device can be manufactured by reduced steps and be operated at high speed in a reliable manner.
    Type: Application
    Filed: June 17, 2008
    Publication date: October 16, 2008
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Toshitake YAEGASHI, Kazuhiro Shimizu, Seiichi Aritome