Patents by Inventor Kozo Nakamura

Kozo Nakamura 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: 7292296
    Abstract: A double-sided display which can suitable carry out black display both in a well-lighted place and a dark place is provided. The following members are disposed in the B direction: a first polarizing plate (14) which allows only a linearly polarized light component to pass through; a liquid crystal layer (13) which, when a voltage is applied thereto, optically rotates and causes linearly polarized light in one direction to be linearly polarized light in the other direction, while, when no voltage is applied, does not alter the direction of the linearly polarized light; a polarizing selective reflector (16) which reflects the linearly polarized light in one direction while allows the linearly polarized light in the other direction to pass through; and a second polarizing plate (15) which absorbs the light in one direction while allows the light in the other direction to pass through. The polarizing selective reflector (16) is disposed only in the B direction of the liquid crystal layer (13).
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: November 6, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Kanbe, Kazuhiko Tsuda, Kozo Nakamura, Tokio Taguchi, Shun Ueki, Satoru Kishimoto
  • Publication number: 20070236632
    Abstract: A double-sided display which can suitable carry out black display both in a well-lighted place and a dark place is provided. The following members are disposed in the B direction: a first polarizing plate (14) which allows only a linearly polarized light component to pass through; a liquid crystal layer (13) which, when a voltage is applied thereto, optically rotates and causes linearly polarized light in one direction to be linearly polarized light in the other direction, while, when no voltage is applied, does not alter the direction of the linearly polarized light; a polarizing selective reflector (16) which reflects the linearly polarized light in one direction while allows the linearly polarized light in the other direction to pass through; and a second polarizing plate (15) which absorbs the light in one direction while allows the light in the other direction to pass through. The polarizing selective reflector (16) is disposed only in the B direction of the liquid crystal layer (13).
    Type: Application
    Filed: June 1, 2007
    Publication date: October 11, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Makoto Kanbe, Kazuhiko Tsuda, Kozo Nakamura, Tokio Taguchi, Shun Ueki, Satoru Kishimoto
  • Publication number: 20070159698
    Abstract: An antireflective member according to the present invention has an uneven surface pattern, in which unit structures are arranged in x and y directions at respective periods that are both shorter than the shortest wavelength of an incoming light ray, on the surface of a substrate and satisfies the following Inequality (1): ? ? ? ? x , y ? min < 1 ni + ni · sin ? ? ? ? ? ? ? i max ( 1 ) where ?min is the shortest wavelength of the incoming light ray, ?imax is the largest angle of incidence of the incoming light ray, ni is the refractive index of an incidence medium, ?x is the period of the uneven surface pattern in the x direction, and ?y is the period of the pattern in the y direction. As a result, diffraction of short-wave light components can be reduced in a broad wavelength range.
    Type: Application
    Filed: February 6, 2007
    Publication date: July 12, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tokio Taguchi, Shun Ueki, Kozo Nakamura, Kazuhiko Tsuda
  • Patent number: 7235128
    Abstract: A process for producing a single-crystal semiconductor and an apparatus therefor. A single-crystal semiconductor of large diameter and large weight can be lifted with the use of existing equipment not having any substantial change thereto while not influencing the oxygen concentration of single-crystal semiconductor and the temperature of melt and while not unduly raising the temperature of seed crystal. In particular, the relationship (L1, L2, L3) between the allowable temperature difference (?T) and the diameter (D) of seed crystal (14) is preset so that the temperature difference between the seed crystal (14) at the time the seed crystal (14) is immersed in the melt and the melt (5) falls within the allowable temperature difference (?T) at which dislocations are not introduced into the seed crystal (14). In accordance with the relationship (L1, L2, L3), the allowable temperature difference (?T) corresponding to the diameter (D) of seed crystal (14) to be immersed in the melt is determined.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: June 26, 2007
    Assignee: Komatsu Denshi Kinzoku Kabushiki Kaisha
    Inventors: Susumu Maeda, Hiroshi Inagaki, Shigeki Kawashima, Shoei Kurosaka, Kozo Nakamura
  • Patent number: 7233862
    Abstract: A communications-type car navigation system including a vehicle-mounted terminal and a server. When transferring, to the terminal, the result of a route searching which the server has performed, the server transfers the data that will satisfy the requirements of a route guiding method which the user wishes. Also, the server transfers the route data that has been compressed. Concerning the map data as well, the server transfers only the necessary attributes thereof. Moreover, the following conditions allow the operability to be enhanced: the selection of a map transferring method and the route guiding method where the driving state has been taken into consideration, and the selection of a guiding unit which the user wishes.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: June 19, 2007
    Assignees: Hitachi, Ltd., Xanavi Informatics Corporation
    Inventors: Yoshinori Endo, Michio Morioka, Kozo Nakamura, Kimiya Yamaashi, Takaharu Ishida, Shigeru Matsuo, Kimiyoshi Machii, Katsuaki Tanaka
  • Publication number: 20070134793
    Abstract: The object of the invention is to provide a redifferention medium and a redifferention method for making dedifferentiated chondrocyte to be redifferentiated into original chondrocyte, the dedifferentiated chondrocyte having attenuated cartilage characteristics due to dedifferentiation during in vitro culture. Accordingly, the invention provides a redifferention medium which is used for redifferentiating the dedifferentiated chondrocyte into the original chondrocyte, and contains insulin and at least one selected from BMP-2 and analogues thereof. The invention also provides a method for redifferentiating the dedifferentiated chondrocyte into the chondrocyte by culturing the dedifferentiated chondrocyte using the redifferentiation medium. The redifferentiation medium preferably further contains T3.
    Type: Application
    Filed: February 23, 2007
    Publication date: June 14, 2007
    Inventors: Kazuto HOSHI, Yuichi Tei, Hiroshi Kawaguchi, Kozo Nakamura, Tsuyoshi Takato
  • Publication number: 20070063946
    Abstract: A display device includes a pixel defined by a plurality of subpixels. The plurality of subpixels include: first and second red subpixels for displaying red; a green subpixel for displaying green; a blue subpixel for displaying blue; and a yellow subpixel for displaying yellow.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 22, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kozo Nakamura, Kazunari Tomizawa
  • Patent number: 7141113
    Abstract: A method for growing a silicon crystal by a Czochralsky method, wherein, let a pulling speed be V (mm/min) and an average value of an in-crystal temperature gradient in a pulling axis direction within a temperature range, a silicon melting point to 1350° C., be G (° C./mm), V/G ranges from 0.16 to 0.18 mm2/° C. min between a crystal center position and a crystal outer periphery position, and a ratio G outer/G center of an average value G of an in-crystal temperature gradient in a pulling axis direction within a temperature range, a silicon melting point to 1350° C., at a crystal outer surface to that at a crystal center is set to up to 1.10 to thereby obtain a high-quality perfect crystal silicon wafer. Such a perfect crystal silicon wafer, wherein an oxygen concentration is controlled to up to 13×1017 atoms/cm3, an initial heat treatment temperature is at least up to 500° C. and a temperature is raised at up to 1° C./min at least within 700 to 900° C.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: November 28, 2006
    Assignee: Komatsu Denshi Kinzoku Kabushiki Kaisha
    Inventors: Kozo Nakamura, Toshiaki Saishoji, Hirotaka Nakajima, Shinya Sadohara, Masashi Nishimura, Toshirou Kotooka, Yoshiyuki Shimanuki
  • Patent number: 7136745
    Abstract: The object of the invention is to execute a program installed additionally on an in-vehicle unit, realizing improved visual recognition while the vehicle is driving. A program 7 to be installed additionally is downloaded along with its attribute data 8 from the service center system 10 into the program administrating section 202 of the in-vehicle unit, and they are managed in relation to each other. When the program is executed, the vehicle condition 1 is compared with the attribute data 8 related to the program and the program operation is controlled accordingly. When executing a program installed additionally on an in-vehicle unit, visual recognition of the display screen can be maintained even while the vehicle is driving.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: November 14, 2006
    Assignees: Hitachi, Ltd., HCX Corporation
    Inventors: Katsuaki Tanaka, Yoshibumi Fukuda, Tadashi Kamiwaki, Kozo Nakamura
  • Publication number: 20060241447
    Abstract: An ultrasonic diagnostic apparatus according to the present invention comprises a plurality of transducer units which are two-dimensionally arranged to transmit/receive an ultrasonic wave to/from hard tissue; a transceiver unit which receives an echo signal for each transducer unit from the plurality of transducer units; a surface point specifying unit which specifies a surface point corresponding to a surface of the hard tissue for each echo signal; and a form data generator unit which generates form data of hard tissue surface on the basis of a plurality of surface points obtained two-dimensionally from the echo signals of the plurality of transducer units.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 26, 2006
    Inventors: Akimitsu Harada, Ryoichi Sakai, Kozo Nakamura, Isao Ohnishi
  • Patent number: 7127723
    Abstract: An information processing apparatus wherein a plurality of operating systems operate on a single processor and a framework (shared object) enabling reliable and quick sharing of correct information between the plurality of operating systems is provided. The apparatus has a function the plurality of operating systems can create, register and refer to the shared object which provides an interface for registration and reference of information. The shared object is operated so that, while one of the operating systems is registering information or referring thereto, the other operating system is inhibited from registering the information and referring thereto. When one operating system finished the registration or reference of the information, one operating system informs the other operating system of the fact.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: October 24, 2006
    Assignees: Hitachi, Ltd., Xanavi Informatics Corporation
    Inventors: Yoshinori Endo, Mariko Okude, Hideo Hiroshige, Kozo Nakamura, Yukihiro Kawamata, Kimiya Yamaashi
  • Patent number: 7069519
    Abstract: In a display apparatus where a plurality of operating systems are operated on a single processor, the plurality of operating systems share one and the same display in different display environments one example of which is a color pallet. In order to implement this configuration, the display apparatus includes the following configuration components: The plurality of operating systems, a display switching processing unit for switching the displays of the plurality of operating systems, graphics-drawing frames corresponding to the plurality of operating systems, and a display environment changing processing unit for changing, in correspondence with the display switching performed by the display switching processing unit, the display environments such as the color pallet, a color mode, and a frame address.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: June 27, 2006
    Assignees: Hitachi, Ltd., Xanavi Informatics Corporation
    Inventors: Mariko Okude, Yoshitaka Atarashi, Yoshinori Endo, Tadashi Kamiwaki, Masahiko Saito, Hiroshi Ohno, Kozo Nakamura
  • Publication number: 20060074311
    Abstract: An echo tracking processor unit detects a bone surface section based on an echo signal and tracks a position of the bone surface section. An interpolation line generator unit generates an interpolation line connecting tracking points which represent the tracked bone surface section. A translational displacement corrector unit removes a translational displacement component between an interpolation line corresponding to a time phase of a no-load state stored in a memory and an interpolation line corresponding to a time phase in a loaded state output from the interpolation line generator unit. A strain calculator unit calculates an amount of strain of bone for each time phase and outputs to a characteristic curve generator unit. The characteristic curve generator unit generates a characteristic curve related to the strain of bone based on a load value output from a load measurement device and the amount of strain of bone output from the strain calculator unit.
    Type: Application
    Filed: September 27, 2004
    Publication date: April 6, 2006
    Inventors: Ryoichi Sakai, Akimitsu Harada, Kozo Nakamura, Isao Ohnishi, Jyuntaro Matsuyama, Toshiro Uehara
  • Patent number: 7023332
    Abstract: An on-vehicle breakdown-warning report system is disclosed. an occurrence of break-down is detected and judged based on a signal in an electronic control system installed on a control apparatus for an engine ignition system, a charging system, an engine fuel system, a engine cooling system, a power transmission system, and an oil lubricating system of an automobile or a diagnosis display system; and a diagnostic data is sent to an information terminal device of a diagnosis and maintenance agency or a service company having a diagnosis and maintenance agency as a contents information by using an on-vehicle mobile communication apparatus, and an action for an emergency measures and a maintenance schedule is asked.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: April 4, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Saito, Kozo Nakamura, Toshio Manaka, Takashi Nakahara
  • Patent number: 7020548
    Abstract: A vehicle drive recorder is provided for recording a signal onto a hard disk, such signal obtained while vehicle is in operation. The recorder inhibits data recording upon receipt of an inhibit signal. Inhibit canceling signal is also available.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: March 28, 2006
    Assignee: Hitachi Global Storage Technologies Japan, Ltd.
    Inventors: Atsushi Saito, Kozo Nakamura
  • Publication number: 20060036364
    Abstract: In a communication-type navigation system for downloading map data according to the present invention, a reduction in the amount of map information to be transferred, correction of a position measured by a GPS, and delivery of advertisements are effected. In this system, a terminal 5 stores rough map data in advance. Then, when detailed map data is required, it is downloaded from a map data delivery center to the terminal 5. Further, together with the map data, GPS correction information is delivered to the terminal 5 from the map data delivery center 80. Still further, coupon information associated with an advertisement is displayed and an electronic mail on the coupon information is issued, by the map data delivery center.
    Type: Application
    Filed: September 30, 2005
    Publication date: February 16, 2006
    Inventors: Shigeru Matsuo, Kimiyoshi Machii, Katsuaki Tanaka, Kozo Nakamura, Yoshinori Endo, Michio Morioka, Yoshitaka Sumitomo
  • Publication number: 20060016387
    Abstract: The production yield about defect free devices is improved by so controlling the size and density of void defects that they are under predetermined levels without marring the productivity. The pull-up speed V of a silicon crystal (10) by a pull-up mechanism (4) is controlled, and the rate of cooling by a cooler (30) is also controlled. As a result, the axial temperature gradient G1 at and near the melting point of the silicon crystal (10) is increased. The growth condition V/G1 is lowered to a temperature near the critical value under the condition that the growth rate V lies in the range from 97% to 75% of the limit rate Vmax and that the solid-liquid interface is convex with respect to the melt surface. Thus a silicon crystal (10) is grown by pulling up.
    Type: Application
    Filed: November 14, 2003
    Publication date: January 26, 2006
    Inventors: Takashi Yokoyama, Koji Yoshihara, Toshiaki Saishoji, Kozo Nakamura, Ryota Suewa
  • Publication number: 20060020380
    Abstract: An on-vehicle breakdown-warning report system is disclosed. an occurrence of break-down is detected and judged based on a signal in an electronic control system installed on a control apparatus for an engine ignition system, a charging system, an engine fuel system, a engine cooling system, a power transmission system, and an oil lubricating system of an automobile or a diagnosis display system; and a diagnostic data is sent to an information terminal device of a diagnosis and maintenance agency or a service company having a diagnosis and maintenance agency as a contents information by using an on-vehicle mobile communication apparatus, and an action for an emergency measures and a maintenance schedule is asked.
    Type: Application
    Filed: August 26, 2005
    Publication date: January 26, 2006
    Applicant: HITACHI, LTD.
    Inventors: Masahiko Saito, Kozo Nakamura, Toshio Manaka, Takashi Nakahara
  • Publication number: 20060005762
    Abstract: The present invention is to produce a silicon crystal wherein the boron concentration in the silicon crystal and the growth condition V/G are controlled so that the boron concentration in the silicon crystal is no less than 1×1018 atoms/cm3 and the growth condition V/G falls within the epitaxial defect-free region ?2 whose lower limit line LN1 is the line indicating that the growth rate V gradually drops as the boron concentration increases. Further, the present invention is to produce a silicon wafer wherein the boron concentration in the silicon crystal and the growth condition V/G are controlled so as to include at least the epitaxial defect region ?1, and the heat treatment condition of the silicon crystal and the oxygen concentration in the silicon crystal are controlled so that no OSF nuclei grow to OSFs.
    Type: Application
    Filed: October 31, 2003
    Publication date: January 12, 2006
    Inventors: Susumu Maeda, Hiroshi Inagaki, Shigeki Kawashima, Shoei Kurosaka, Kozo Nakamura
  • Publication number: 20050285996
    Abstract: An opposed substrate has a configuration in which a retardation film and a polarizer are provided outside a glass substrate, and a color filter is provided inside the glass substrate. The color filter selects a color of light passing through the color filter itself. The color filter has a color reproduction range of 0.079 or more both in a reflection area and in a transmission area. It is preferable that color filters are formed of the same color material and have almost the same thickness in a reflection area and a transmission area. That is, it is preferable that one pixel area has the same configuration in the reflection area as in the transmission area.
    Type: Application
    Filed: June 21, 2005
    Publication date: December 29, 2005
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kozo Nakamura, Shun Ueki, Tokio Taguchi, Kazuhiko Tsuda