Patents Represented by Attorney Parkhurst & Wendel, L.L.P.
  • Patent number: 6849346
    Abstract: A thin film EL device is disclosed which includes a hole-injecting electrode, an electron-injecting electrode paired with the hole-injecting electrode, and a functional layer provided between the hole-injecting electrode and the electron-injecting electrode and emitting light by application of an electric field produced by the electrodes. The electron-injecting electrode contains at least two or more different metals having different work functions and a capturing substance for capturing a low work function metal, which is a metal other than a highest work function metal among the above-described metals, in its ionic state. This configuration prevents deterioration of the low work function metal, increasing the luminance and lifetime of the device.
    Type: Grant
    Filed: January 15, 2001
    Date of Patent: February 1, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mikiko Matsuo, Tetsuya Satou, Hisanori Sugiura, Hitoshi Hisada
  • Patent number: 6848620
    Abstract: A semiconductor integrated circuit is provided to allow a stable operation even in a short distance where an IC card is in contact with a reader/writer. In a semiconductor integrated circuit for a noncontact IC card that obtains driving power supply by carrying superimposed data, obtained voltage does not become overvoltage and data can be demodulated with stability regardless of a change in communication distance. Inputs of a system (including a rectifier circuit and a power supply circuit) producing power supply from an antenna coil of the IC card which receives radio waves transmitted from a reader/writer, and of a demodulator circuit are connected via a path separated from the output of the rectifier circuit. Thus, a power supply voltage range can be set within a permissible value and a rate of change in input of the demodulator circuit can be obtained regardless whether the communication distance is short or long.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: February 1, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: George Nakane, Tatsumi Sumi
  • Patent number: 6849149
    Abstract: There are provided a hologram laminate and a hologram label which do not involve any problem in the production process per se of forging preventive labels using a volume hologram, can provide a reliable process of the attainment of forgery preventive effect, and can make difficult to notice the signs of the forgery preventive processing. In applying a protective film 108 onto a hologram 107 through a second pressure-sensitive adhesive 109, the adhesive strength is partially varied. By virtue of this construction, upon separation of the protective film 108, the second pressure-sensitive adhesive 109 is partially left on the hologram 107, so that the fact of the separation can be found out.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: February 1, 2005
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Otaki, Kenji Ueda, Fumiko Noujima
  • Patent number: 6846728
    Abstract: By applying ion or optical energy or catalytic effects at the time of depositing a crystalline silicon thin film, improvements in crystallinity of the crystalline silicon thin film in proximities of an interface of a substrate or smoothing of its surface may be achieved. With this arrangement, it is possible to achieve improvements in crystallinity of the crystalline silicon film that is formed in a low temperature condition through CVD method and to prevent concaves and convexes from being formed on its surface or to prevent oxidation of grain fields, and it is accordingly possible to provide a thin film transistor, a semiconductor device such as a solar cell and methods for manufacturing these that exhibit superior characteristics and reliability.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: January 25, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masashi Goto, Mikihiko Nishitani, Masaharu Terauchi
  • Patent number: 6846764
    Abstract: A silicon nitride porous body which is obtained by nitriding a molded body having metallic silicon as a main component and by performing a high temperature heating treatment at a temperature higher than the nitriding temperature, and which has a porous structure with an average pore diameter of 3 ?m or above, and contains at least one kind of element selected from the group consisting of the groups 2A, 3A, 3B inclusive of lanthanoid elements, and 4B. The silicon nitride porous body has a porous structure with a large average pore diameter, a test specimen cut out from the porous body exhibiting a high thermal conductivity and a small thermal expansion coefficient, and can be suitably used in a component for purifying gas and/or solution such as a ceramic filter.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: January 25, 2005
    Assignee: NGK Insulators, Ltd.
    Inventors: Katsuhiro Inoue, Kenji Morimoto, Masaaki Masuda, Shinji Kawasaki, Hiroaki Sakai
  • Patent number: 6847226
    Abstract: To provide a semiconductor instrument for improving power added efficiency when a low power is outputted. In the semiconductor instrument in which a radio-frequency input signal (SRF) is supplied to input circuits of a plurality of transistors (1, 2), output circuits of the plurality of transistors (1, 2) are connected in parallel, and a radio-frequency output signal amplified with power is retrieved an amplifying operation of one part transistor (2) of the plurality of the transistors (1, 2) is turned off during a low-output operation.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: January 25, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Motonori Ishii
  • Patent number: 6846597
    Abstract: A photomask with a dummy pattern is inspected in a predetermined detection sensitivity by using photomask pattern data designating a photomask with a dummy pattern to detect defects in the photomask. Coordinates indicating the positions of the defects are also determined. The defects in a design pattern area and those in a dummy pattern area are discriminated by using defect-discriminating data. The defects in the design pattern area and those in the dummy pattern area are examined on the basis of respective inspection specifications.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: January 25, 2005
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Syogo Narukawa, Kiyoshi Yamazaki, Hideyuki Nara, Yuji Machiya, Tatsuya Tomita
  • Patent number: 6847497
    Abstract: A wide-angle imaging device suitable for a monitor area of about 180 degrees. A first reflection mirror (1) is provided that has, around the rotation center axis (6) of a rotary symmetrical body, a reflection surface having an approximately ±90-degree convex shape with respect to a reference optical axis direction, an image forming lens (2) that has a principal point (7) on the rotation center axis of the first reflection mirror (1) and forms the image of a reflection beam from the first reflection mirror (1) and an imaging element (3) are disposed, and an object within approximately ±90 degrees around the rotation center axis of the first reflection mirror (1) is imaged.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: January 25, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasushi Sogabe, Shigeki Murata
  • Patent number: 6843817
    Abstract: The present invention provides a ceramic filter to be used at a high temperature, and it contains a substance having preferential reactivity with an ash component contained in materials captured by the ceramic filter and not removed by a high temperature treatment such as combustion over the principal component of the ceramic filter; the reaction between the ash component being not removed by a high temperature treatment such as combustion of the filter and remaining accumulated and the filter component to cause melting of the filter being suppressed to attain a long period of service.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: January 18, 2005
    Assignee: NGK Insulators, Ltd.
    Inventors: Naomi Noda, Kanji Yamada
  • Patent number: 6844737
    Abstract: An electrical short-circuit detection device includes a first signal processing module for receiving a signal representative of an electrical current and supplying a first signal representative of the value of the electrical current and a second signal representative of the differential of the electrical current, and a second processing module for receiving the signals and comprising a short-circuit detection module for supplying a detection signal according to a curve overshoot. The second processing module monitors a limit curve overshoot and a ratio between variations of the signals. A short-circuit detection signal is supplied when the ratio exceeds a preset threshold. A circuit breaker incorporates such a device. The process comprises monitoring limit curve overshoot and the ratio between variations of the signals.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: January 18, 2005
    Assignee: Schneider Electric Industries SAS
    Inventors: Benoit Leprettre, Pierre Perichon, Luc Oriat
  • Patent number: 6843904
    Abstract: An in-substrate selective electrochemical treatment system for finding and repairing pinholes of an active substrate including holding an insulating substrate having a conductive pattern, supplying a predetermined amount of a specified chemical solution to a specified region on the insulating substrate and confining it in the specified region, locating the reversed polarity electrode plate close to the insulating substrate such that the reversed polarity electrode plate comes in contact with the chemical solution on the upper surface of the insulating substrate, bringing the electrode into contact with the conductive pattern in the periphery of the insulating substrate, applying a specified direct current between the electrode and the reversed polarity electrode plate, and measuring a value of current flowing between the electrode and the reversed polarity electrode plate.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: January 18, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Kiyohiro Kawasaki
  • Patent number: 6844670
    Abstract: An organic EL element (100) emits light containing blue, green and red components. A blue color filter (420) transmits only the blue component. A green-converting member (340) converts the blue component to the green component, and a green color filter (440) transmits only the green component. A red-converting member (360) converts the blue component and the green component to the red component, and a red color filter (460) transmits only the red component. Since the respective color filters (420, 440 and 460) block unnecessary color components, the reproducibility of the respective color is improved. Since the luminescence of the organic EL element (100) contains the green component and the red component besides the blue component, white balance becomes good. It is therefore possible to provide a color luminous device from which improved light rays in the three primary colors can be emitted.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: January 18, 2005
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hitoshi Kuma, Mitsuru Eida, Chishio Hosokawa
  • Patent number: 6844210
    Abstract: A method of manufacturing an organic electroluminescence device containing an organic layer formed between electrodes, at least one of which is a transparent electrode, the method including a step of forming the transparent electrode and the organic layer that satisfies the following inequality (a) or inequality (b) or both: Min?20 nm<t<Min+20 nm??(a) Max?20 nm<t<Max+20 nm??(b) wherein t is the total optical path length (nm), Min is the optical path length (nm) at which the CIEx chromaticity coordinates or CIEy chromaticity coordinates measured according to JIS Z 8701 exhibit a minimum value, and Max is the optical path length (nm) at which the CIEx chromaticity coordinates or CIEy chromaticity coordinates measured according to JIS Z 8701 exhibit a maximum value.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: January 18, 2005
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kenichi Fukuoka, Mitsuru Eida
  • Patent number: 6844398
    Abstract: An ethylenic copolymer composition including an ethylenic copolymer having Mw/Mn of 1.5 to 4, Mw of 3,000 to 1,000,000, and a resin density of 0.85 to 0.95 g/cm3. The relationship between the half width at the half maximum [W/2] of the Gaussian distribution curve, and the average, n, of short-chain branches in the copolymer satisfies the equation, 0.704+0.147n=W/2=?0.055+0.577n. The ethylenic copolymer composition also includes an ethylenic copolymer having an Mw of 3,000 to 1,000,000 and a resin density of 0.85 to 0.95 g/cm3.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: January 18, 2005
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Haruo Shikuma, Shuji Machida, Motoharu Ishikawa, Shinichi Kurokawa
  • Patent number: 6842310
    Abstract: According to the present invention, a hollowed portion is formed on a lower bonded surface of a rotary drum to which a rotation-side rotary transformer is bonded, and a hollowed portion is formed on an upper bonded surface of the fixed drum to which a fixation-side rotary transformer is bonded. Thus, excessive adhesive is absorbed by the hollowed portions and adhesive layers do not have uneven thicknesses, thereby securing surface runout accuracies of the rotary transformers. Further, since an adhesive is applied to the outer peripheral side of the hollowed portion of the rotary drum, the adhesive does not flow into ball bearings located on the inner peripheral side.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: January 11, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroshi Inoue, Masashi Omura, Hiroshi Kanchiku
  • Patent number: 6841298
    Abstract: A lithium ion battery (1) includes a lithium ion battery module (2) provided with tabs (4), and a package 5 holding the lithium ion battery module (2) therein. The package (5) has a sealed peripheral part (5a) sealed by heat-sealing. At least a part of each tab (4) corresponding the sealed peripheral part (5a) is coated with a corrosion-resistant layer (4S).
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: January 11, 2005
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Rikiya Yamashita, Hiroshi Miyama, Kazuki Yamada, Masataka Okushita
  • Patent number: 6842485
    Abstract: A compressively coded data reproduction apparatus and method for separating compressively coded video, audio, and additional data, data from a stream, outputting these data performing head detection on video and audio frames; decoding the video frames to output video data; decoding the audio frames to output audio data; judging whether a detected head frame is a video frame or an audio frame corresponding to a designated entry point start time information being among the additional data of the detected frame, outputting a decoding request when the detected frame is judged as a video and/or audio frame corresponding to the start time, and outputting an output request at the point of time when both of the video frame and the audio frame have been decoded. The system can output a video frame and an audio frame at the same time, within a prediction of video frame unit or audio frame unit, when starting reproduction of compressively coded data from an entry point.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: January 11, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ken Monda, Keiichi Miyazaki, Akihiko Yamazaki, Hirotoshi Kobayashi
  • Patent number: 6840765
    Abstract: There is provided a heat treatment unit which uses a multi-layered heat treatment furnace (1) comprising a layer of fluidized bed (2) composed of particles and another layer of atmosphere layer (3) composed of gases, the former being excellent in thermal efficiency and uniformity of heat distribution and the latter being positioned in the free board section over the fluidized bed (2), in which these layers operate at temperature levels different from each other, and the work piece is heat-treated by being partly immersed in the fluidized bed (2) having a given temperature with the other part being exposed in the atmosphere layer (3) also operating at a given temperature, according to desired mechanical properties of the work piece at each position. This heat treatment unit is improved from the conventional one in that it can give desired mechanical properties which are required by each part of metallic work requires without increasing the investment cost.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: January 11, 2005
    Assignee: Asahi Tec Corporation
    Inventor: Takayuki Sakai
  • Patent number: PP15504
    Abstract: A Chrysanthemum plant named ‘Sizzleness Pink’ characterized by its medium size decorative inflorescences with elongated quilled pink ray-florets, with a response time of 52 days.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: January 25, 2005
    Assignee: Chrysanthemum Breeders Association, N.V.
    Inventor: Mark Roland Boeder
  • Patent number: PP15525
    Abstract: A chrysanthemum plant named ‘Sizzleness Yellow’ characterized by its medium decorative infloresences with elongated quilled purple/yellow ray-florets, with a response time of 52 days.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: February 1, 2005
    Assignee: Chrysanthemum Breeders Association, N.V.
    Inventor: Mark Roland Boeder