Patents by Inventor Mitsuo Nakamura

Mitsuo 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: 6771202
    Abstract: In a device for analog-to-digital converting an input signal, the input signal is applied to a plurality of delay units constituting a pulse delay circuit in order to change a delay time to be given by the delay units. The number of delay units through which a pulse signal has passed during one period of sampling clocks is numerically expressed. The A/D conversion device has a plurality of pulse position numerizing units that is used for A/D conversion. Sampling clocks of which the phases are different from one another are applied to the respective pulse position numerizing units. An adder summates numerical data items produced by the respective pulse position numerizing units so as to generate final numerical data representing a result of A/D conversion.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: August 3, 2004
    Assignee: Denso Corporation
    Inventors: Takamoto Watanabe, Mitsuo Nakamura
  • Publication number: 20040102592
    Abstract: The present invention provides an acrylic ester compound represented by formula (1), a polymerizable composition containing the acrylic ester compound, and a cured product and an optical component obtained by polymerizing the polymerizable composition: 1
    Type: Application
    Filed: January 13, 2003
    Publication date: May 27, 2004
    Inventors: Mitsuo Nakamura, Masao Imai, Atsuo Otsuji
  • Publication number: 20030204030
    Abstract: A poly(thio)ester (co)polymer which comprises a repeating structural unit represented by the formula (1-A) as an essential structural unit: 1
    Type: Application
    Filed: November 8, 2002
    Publication date: October 30, 2003
    Inventors: Chojiro Higuchi, Atsuo Otsuji, Kenichi Sugimoto, Mitsuo Nakamura, Masatoshi Takagi, Yasuhiro Nukii, Koju Okazaki
  • Publication number: 20030201927
    Abstract: In a device for analog-to-digital converting an input signal, the input signal is applied to a plurality of delay units constituting a pulse delay circuit in order to change a delay time to be given by the delay units. The number of delay units through which a pulse signal has passed during one period of sampling clocks is numerically expressed. The A/D conversion device has a plurality of pulse position numerizing units that is used for A/D conversion. Sampling clocks of which the phases are different from one another are applied to the respective pulse position numerizing units. An adder summates numerical data items produced by the respective pulse position numerizing units so as to generate final numerical data representing a result of A/D conversion.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 30, 2003
    Inventors: Takamoto Watanabe, Mitsuo Nakamura
  • Patent number: 6580224
    Abstract: A backlight for color liquid crystal comprises a light-emitting layer having EL phosphor particles dispersed in a matrix of dielectrics, a transparent electrode layer disposed along a main surface on an emitting side of a light-emitting layer, and a reflective insulating layer and a rear electrode layer stacked in turn along a main surface on a non-emitting side of a light-emitting layer. An EL element, under the operational conditions of a voltage of 100 Vrms and a frequency of 400 Hz, emits white light of which brightness is 80 cd/m2 or more, and has characteristics of consumption power of 30 W/m2 or less. By the use of such EL element as a backlight, a color liquid crystal display device that is low in consumption power, excellent in display performance and suitable for a display portion of a portable information terminal can be provided.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: June 17, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsutomu Ishii, Mitsuo Nakamura, Kiyoshi Inoue
  • Publication number: 20030078429
    Abstract: A process and diastereomeric salts useful for the optical resolution of racemic &agr;-[4-(1,1-dimethylethyl)phenyl]-4-(hydroxydiphenylmethyl)-1-piperidinebutanol, 4-[4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-1-hydroxybutyl]-&agr;,&agr;-dimethylbenzeneacetic acid and lower alkyl 4-[4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-1-hydroxybutyl]-&agr;,&agr;-dimethylbenzeneacetates. The process comprises placing into solution a chiral resolving agent, either (+)/(−)-di-paratoluoyltartaric acid or (−)/(+)-mandelic acid, in an amount equimolar to a compound corresponding to the desired enantiomer of the above compound, precipitating the resulting diastereomeric salt between the chiral resolving agent and the target enantiomer and separating the enantiomer.
    Type: Application
    Filed: July 10, 2002
    Publication date: April 24, 2003
    Inventors: Mitsuo Nakamura, Masatoshi Shiga
  • Patent number: 6448312
    Abstract: A colored resin composition for water pipes which comprises (A) a polyethylene resin and (B) specific amounts of (i) a cobalt blue pigment, (ii) at least one selected from phthalocyanine pigments having no metals and metal phthalocyanine pigments having no chlorine atoms or one chlorine atom in a molecule, (iii) a dioxazine pigment and (iv) a titanium dioxide pigment and a colored water pipe which comprises the colored polyethylene resin composition and has a color tone within a specific color solid expressed by the values of the Munsell standard color table before and after the test of resistance to chlorine water for 500 hours. The composition and the water pipe are colored in a bluish color and exhibits an excellent hiding property, excellent fastness of the color tone of the coloring component to water containing chlorine and an excellent property for preventing formation of blisters in water containing chlorine.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: September 10, 2002
    Assignees: High Tech Chem Co., Ltd., Japan Polyolefins Co., Ltd.
    Inventors: Kotaro Oshima, Tohru Matsuoka, Yozo Nagai, Mitsuo Nakamura
  • Publication number: 20020061995
    Abstract: An acrylic ester compound represented by the general formula (1): 1
    Type: Application
    Filed: September 24, 2001
    Publication date: May 23, 2002
    Inventors: Tadashi Ohkuma, Masao Imai, Mitsuo Nakamura, Atsuo Otsuji
  • Publication number: 20020003594
    Abstract: A backlight for color liquid crystal comprises a light-emitting layer having EL phosphor particles dispersed in a matrix of dielectrics, a transparent electrode layer disposed along a main surface on an emitting side of a light-emitting layer, and a reflective insulating layer and a rear electrode layer stacked in turn along a main surface on a non-emitting side of a light-emitting layer. An EL element, under the operational conditions of a voltage of 100 Vrms and a frequency of 400 Hz, emits white light of which brightness is 80 cd/m2 or more, and has characteristics of consumption power of 30 W/m2 or less. By the use of such EL element as a backlight, a color liquid crystal display device that is low in consumption power, excellent in display performance and suitable for a display portion of a portable information terminal can be provided.
    Type: Application
    Filed: June 5, 2001
    Publication date: January 10, 2002
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsutomu Ishii, Mitsuo Nakamura, Kiyoshi Inoue
  • Patent number: 6225741
    Abstract: An EL panel package film comprises, for example, a PCTFE film or a PET film having a moistureproof layer. This EL panel package film has irregularities of 3 &mgr;m or more in arithmetic average roughness (Ra) and 10 &mgr;m or more in maximum height (Ry) specified in JIS G 0601 on at least one of its surfaces. The EL panel is configured by using the EL panel package film having such surface irregularities as a package film on at least a light emitting surface side. Oscillations produced due to the polarity inversion of an alternate voltage applied to the EL panel are absorbed and dispersed by the irregularities formed on the package film surface. A LCD module has such an EL panel as the backlight. Noise from the LCD cell surface is reduced.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: May 1, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsuo Nakamura, Yoichiro Yabe
  • Patent number: 6155852
    Abstract: An eject lever 8 has a pressing piece 14 which is bent so as to be in parallel with the card surface; the plate thickness surface of the pressing piece forms a pressing surface to be contacted with the eject lever; the plate thickness surface of a part of the eject lever 12 provides a pressed piece 16 having a pressed surface which can be contacted with the pressing surface; and by the pressed surface, the pressing force from the pressing surface is received as a force to turn the eject lever.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: December 5, 2000
    Assignees: Hirose Electric Co., Ltd., Sony Corporation
    Inventors: Hiroshi Ozawa, Mitsuo Nakamura, Nobuhito Ebine, Masaki Hanzawa
  • Patent number: 6018140
    Abstract: An image forming apparatus includes a fixing unit having a heat source, a temperature detecting unit for detecting a temperature of the fixing unit, an initial operation necessity detecting unit for determining whether an initial operation should be performed in the image forming apparatus, an initial operation selecting control unit for selecting an initial operation from among a plurality of predetermined initial operations based on the temperature detected by the temperature detecting unit when the initial operation necessity detecting unit detects that the initial operation should be performed, and a control unit for controlling the fixing unit so that the fixing unit performs the initial operation selected by the initial operation selecting control unit.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: January 25, 2000
    Assignee: Fujitsu Limited
    Inventors: Kazunori Hirose, Takashi Matsuya, Akihiro Komuro, Nobuyuki Hayashida, Kazuo Shimada, Keisuke Nakamura, Yutaka Yamauchi, Tokio Muta, Yoshihiro Takamatsuya, Mitsuo Nakamura
  • Patent number: 6000194
    Abstract: A pair of first and second concrete layers (1, 2) spaced away from each other by a certain distance are connected to each other through a corrugated plate (3) having a uniform magnitude of amplitude so that there are formed a space between the concrete layers (1, 2). A weight of a concrete-made panel is decreased by this hollow structure. A corrugated plate (3) is designed to have a trapezoidal cross-section of rectangular corrugation. By sinking mountain and valley portions of the corrugated plate into the first and second concrete layers (1, 2), the concrete-made panel can have enhanced compressive strength in a direction of corrugation of the corrugated plate (3), and have enhanced rigidity because of diagonal members of a truss which keeps the concrete-made panel being kept to be a plane.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: December 14, 1999
    Assignee: JOIST Co., Ltd.
    Inventor: Mitsuo Nakamura
  • Patent number: 5977515
    Abstract: An underwater laser processing system has a laser torch; a laser torch driving mechanism for changing a laser emission position of the laser torch; and a chamber with one end opened to an external environment, which contains the laser torch; wherein a partitioning wall for preventing permeation of water is provided between a free end of the chamber and the laser torch. The system is used for detecting a sensitized portion and repairing it at one time using a sensitization detecting arrangement. Moreover, it is used for forming an alloying layer by melting a sprayed coating film, and for forming a new surface layer by emitting a laser beam through a solution containing a metal component.
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: November 2, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Keiichi Uraki, Toshitaka Satsuta, Akira Onuma, Mitsuo Nakamura, Tsutomu Onuma, Toshimi Matsumoto, Yasumasa Tamai, Hiroshi Yamauchi, Eisaku Hayashi, Ren Morinaka
  • Patent number: 5938954
    Abstract: A submerged laser beam irradiation equipment provides a high quality submerged laser beam processing of a submerged workpiece using only a small amount of a gas. The submerged laser beam irradiation equipment has: a focus lens for focusing a laser beam; a mirror tube which houses the lens; a first nozzle operating to cover the front end of the mirror tube in an irradiating direction of the laser beam; a skirt portion provided at the front end of the first nozzle for preventing water intrusion thereinto; and a shutter mechanism operable to open and close and provided between said skirt portion and said mirror tube for preventing water intrusion into said mirror tube.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: August 17, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Tsutomu Onuma, Toshimi Matsumoto, Akira Onuma, Mitsuo Nakamura, Choichi Asano, Yasumasa Tamai, Hiroo Koide, Masayuki Kurihara, Takao Funamoto, Fuminori Ishikawa
  • Patent number: 5849122
    Abstract: A vehicle body panel having a honeycomb sandwich structure in which a honeycomb core is sandwiched between a first and a second plate includes a subhoneycomb panel formed by adhering the first plate to one major surface of the honeycomb core beforehand. The subhoneycomb panel is pressed against the second plate which is constituted by a part of a structural panel of a vehicle body with the intermediary of an adhesive layer, the other major surface of the honeycomb core being adhered to the second plate. The connection of the subhoneycomb panel to the second plate is performed after the structural panel has been connected to a strength member of the vehicle body, e. g. after a washing stage. Such a vehicle body panel with a honeycomb sandwich structure is achievable without resorting to any substantial modification of an existing vehicle body assembly line.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: December 15, 1998
    Assignee: Honda Giken Kogyo Kabushiki Kaisa
    Inventors: Toshihisa Kenmochi, Kazuyuki Okui, Hiroshi Osada, Takashi Maeda, Makoto Shiokawa, Tsuyoshi Yamashita, Mitsuo Nakamura
  • Patent number: 5758228
    Abstract: An image forming apparatus includes a fixing unit having a heat source, a temperature detecting unit for detecting a temperature of the fixing unit, an initial operation necessity detecting unit for determining whether an initial operation should be performed in the image forming apparatus, an initial operation selecting control unit for selecting an initial operation from among a plurality of predetermined initial operations based on the temperature detected by the temperature detecting unit when the initial operation necessity detecting unit detects that the initial operation should be performed, and a control unit for controlling the fixing unit so that the fixing unit performs the initial operation selected by the initial operation selecting control unit.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: May 26, 1998
    Assignee: Fujitsu Limited
    Inventors: Kazunori Hirose, Takashi Matsuya, Akihiro Komuro, Nobuyuki Hayashida, Kazuo Shimada, Keisuke Nakamura, Yutaka Yamauchi, Tokio Muta, Yoshihiro Takamatsuya, Mitsuo Nakamura
  • Patent number: 5726849
    Abstract: An input overcurent suppression circuit is used for a DC-DC converter in uninterruptible power supply source and includes a plurality of DC-DC converters, an AC-DC converter and a detecting means for detecting an input current to the DC-DC converters.In the plural DC-DC converters, a parallel circuit constituted by a resistor element and a switching element is connected in series with an input circuit to break the circuit in response to an overcurrent or over heating. When the power source circuit is closed, a surge current-preventing circuit prevents the surge current by turning a switching element off for a predetermined period of time.The AC-DC converter feeds current to at least two or more DC-DC converters among the plurality of DC-DC converters.When the detecting means has detected an overcurrent, the switching element is turned off to turn off the resistor element connected in parallel with the switching element, to thereby suppress the overcurrent flowing into the AC-DC converter.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: March 10, 1998
    Assignee: Fujitsu Limited
    Inventor: Mitsuo Nakamura
  • Patent number: 5654992
    Abstract: A neutron-irradiated structural material having a defect in a nuclear reactor internals is repaired by covering the structural material to be repaired with a plate to cover over a portion thereof having the defect, and then welding the plate and the structural material by locally applying pressure on the surface of the plate and adding energy to the portion to which the pressure is applied thereby to generate thermal energy in the contact surfaces between the plate and the structural material.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: August 5, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Keiichi Uraki, Hisanori Okamura, Toshimi Matsumoto, Toshitaka Satsuta, Mitsuo Nakamura, Akira Onuma, Tsutomu Onuma, Takahiko Kato, Jun'ya Kaneda, Kunihiko Suzuki
  • Patent number: 5624247
    Abstract: Both ends of a circling scroll are supported by a pin crank and the eccentric shaft of the circling scroll, thus assuring a stable circling or oscillating motion of the scroll. This in turn allows the scroll tooth length to be elongated, leading to an increase in the capacity of the fluid machine. Because the eccentric shaft and the pin crank are fitted into the center boss, the pin crank can work as a shaft that supports the left end of the circling scroll. The provision of the boss allows a radial load acting on the scroll tooth to be borne at the load position, thus shortening the shaft and reducing the bearing. Because the pin crank can be mounted to the boss, a two-block parallel arrangement and two-stage arrangement can be implemented easily. Further, the construction in which the pin crank is used as a left-end supporting bearing contributes to reducing the manufacturing cost of the apparatus.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: April 29, 1997
    Inventor: Mitsuo Nakamura