Patents by Inventor A. Hayashi

A. Hayashi 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).

  • Multi-layer gas sensor element and gas sensor comprising the same
    Publication number: 20020036138
    Abstract: A multi-layer gas sensor element is described which comprises a solid electrolytic member, a substrate, and a porous member, wherein each of the substrate and the porous member has a thickness larger than that of the solid electrolytic member with respect to a lamination direction; the substrate and the porous member face each other and sandwich the solid electrolytic member; a ceramic component constituting the substrate in the highest volume percent is the same as the ceramic component constituting the porous member in the highest volume percent thereof; and the volume percent (R2) of the ceramic component contained in the porous member is 80% or more the volume percent (R1) of the ceramic component contained in the substrate.
    Type: Application
    Filed: July 31, 2001
    Publication date: March 28, 2002
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Yoshiaki Kuroki, Kunio Yanagi, Tomohiro Mabuchi, Shinya Awano, Hiroyuki Hayashi
  • Coinjection stretch blow molded container
    Publication number: 20020037379
    Abstract: Coinjection stretch blow molded containers containing thermoplastic polyester resin and an EVOH resin are obtained, which have greatly improved impact delamination resistance.
    Type: Application
    Filed: July 23, 2001
    Publication date: March 28, 2002
    Applicant: Kuraray Co., Ltd.
    Inventors: Shinji Tai, Hiroyuki Shimo, Nahoto Hayashi, Masako Chigami
  • Surface treatment solution for polysilicon film and method of treating the surface of polysilicon film using the same
    Publication number: 20020037654
    Abstract: An inexpensive surface treatment solution that can selectively reduce the average roughness (Ra) of the surface of a polysilicon film formed by crystallization on an insulating substrate such as one made from glass with a laser annealing process. The surface treatment solution essentially comprises 0.01 to 0.5 wt % of hydrofluoric acid or 0.5 to 5 wt % of ammonium fluoride, 50.0 to 80.0 wt % of nitric acid and water.
    Type: Application
    Filed: July 23, 2001
    Publication date: March 28, 2002
    Applicant: Kanto Kagaku Kabushiki Kaisha
    Inventors: Hidekazu Hayashi, Kenji Kageyama
  • Toner for developing electrostatic image and image forming method
    Publication number: 20020037469
    Abstract: A toner for developing an electrostatic image comprising a resin, a colorant and a releasing agent in which the toner particles are obtained by salting out/fusion-adhering a resin particle comprising a binding resin and a releasing agent together with a colorant particle is disclosed. The toner comprises the toner particles having a variation coefficient of not more than 16% and a number variation coefficient of the number particle size distribution of not more than 27%.
    Type: Application
    Filed: July 19, 2001
    Publication date: March 28, 2002
    Inventors: Mikio Kohyama, Kenji Hayashi, Masafumi Uchida, Tsuyoshi Uchida, Hiroyuki Yamada
  • Semiconductor memory device
    Publication number: 20020036914
    Abstract: A semiconductor memory device capable of reading out data at a higher speed and occupying a decreased chip-area is provided. The device includes a bit line selection circuit including a plurality of first transistors for selecting a plurality of bit lines according to a plurality of column selection signals generated based on address signals, a bit line charging circuit including a plurality of second transistors for charging the plurality of bit lines, respectively, and a bit line grounding circuit including a plurality of third transistors for connecting the plurality of bit lines with a ground potential. This enables the decrease in a charging time during a bit line precharging operation and a discharging time during data reading-out operation.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 28, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventor: Mitsuaki Hayashi
  • Printing quality inspection apparatus
    Publication number: 20020035939
    Abstract: An inspection unit of an intaglio printing press includes a suction table for correcting the position of printed sheet-like object as being disposed inside of a unit frame, and a camera and a light for inspecting the printing quality of sheet-like object being corrected of position by the suction table provided in a shroud inside of the unit frame. The table is disposed in a moving table with casters so as to move the suction table between a working position inside of the frame and a maintenance position outside thereof. The shroud is supported on first support rails through support rollers so that the camera and light can be moved between the working position inside of the frame and the maintenance position outside thereof, while support rails and their stand are disposed so as to be accommodated outside the frame.
    Type: Application
    Filed: September 21, 2001
    Publication date: March 28, 2002
    Inventors: Yutaka Endo, Kenji Kasama, Norihiro Kumagai, Kenji Hayashi, Mitsuhiro Uehara
  • Nitrogen dioxide gas sensing method, nitrogen dioxide gas sensor element, and nitrogen dioxide gas sensor using the same
    Patent number: 6362005
    Abstract: In this invention, a mixture of a diazotizing reagent which reacts with nitrous ions to produce a diazo compound, a coupling reagent which couples with a diazo compound to produce an azo dye, and an acid is placed in pores of a transparent porous body to prepare a sensor element. Nitrogen dioxide gas is sensed in accordance with a color change before and after the sensor element is exposed to air to be measured for a predetermined time.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: March 26, 2002
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Tohru Tanaka, Takayoshi Hayashi, Shiro Matsumoto, Yasuko Maruo, Takashi Ohyama
  • Fuel property detecting system
    Patent number: 6363313
    Abstract: A fuel property detecting system comprises a control unit coupled to a fuel injector and an air-fuel ratio sensor. The control unit is arranged to sample data of a response wave-form of an exhaust air-fuel ratio in response to an injected fuel quantity at a transient period, to identify a plant model as to fuel in use by controlling a parameter of a previously constructed plant model on the basis of the input and output data so as to decrease a prediction error between the plant model and a norm model, to calculate a cutoff frequency of the identified plant model, and to estimate a fuel property of the fuel in use from the calculated cutoff frequency of the identified plant model and data previous stored in the control unit.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: March 26, 2002
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroshi Katoh, Shigeaki Kakizaki, Takane Hayashi
  • Bonding apparatus
    Patent number: 6362014
    Abstract: Instead of using the ordinary pulse train command inputted from a computer to the control circuit, an offset signal outputted from an offset compensation circuit is employed for performing scrubbing of a bonding surface of, for instance, a semiconductor device. The offset compensation circuit controls a DC motor in drive amounts smaller than the resolution of the DC motor which moves an XY table having a bonding tool which performs the scrubbing, and the drive amounts smaller than the resolution outputted from the offset compensation circuit are controlled by a computer.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: March 26, 2002
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Kuniyuki Takahashi, Hijiri Hayashi
  • Demodulator
    Patent number: 6363126
    Abstract: The invention presents an apparatus capable of demodulating stably if there are time-course changes in the constituent parts in a demodulator of digital modulated signal. This demodulator comprises an operator for setting the oscillation frequency of a local oscillator 2, and within a passing frequency band of a band pass filter BPF 3, the operator controls the local oscillator 2 so that the frequency of the output signal of a first mixer 1 may settle within a control band in a controllable frequency band of an AFC feedback loop composed of an orthogonal detector 4, a carrier regenerator 9, a frequency error detector 10, a frequency controller 11, a signal selector 12, a D/A converter 13, and a VCO 14, and a local carrier is issued from the local oscillator 2 to the first mixer 1.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: March 26, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hitonobu Furukawa, Masami Takigawa, Akira Mishima, Hiroaki Ozeki, Sachiko Hayashi
  • Classification tree based information retrieval scheme
    Patent number: 6363375
    Abstract: An information retrieval scheme using classification trees with respect to a plurality of information sources connected to a network is disclosed, where each classification tree having a hierarchical structure defined in terms of entries. In the information retrieval apparatus, classification tree class information for each classification tree class defined among entries constituting each classification tree is managed, where each classification tree class information indicating retrieval condition parameters for each classification tree class.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: March 26, 2002
    Assignee: Nippon Telegraph and Telephone Company
    Inventors: Takashi Hoshino, Yasushi Hasegawa, Giichi Kishimoto, Kinji Kato, Tsuyoshi Hayashi
  • Method for drilling hollow components
    Patent number: 6362446
    Abstract: An apparatus for drilling cooling holes through a wall of a hollow component is disclosed. First, a laser drill is used for drilling at least one rough blind hole within a component wall, for example a turbine airfoil, so as to retain a residual bottom plate portion. Next, an electro discharge machine (EDM), for example a rotating EDM or plunge EDM, is used for finishing at least one rough blind hole so as to create at least one finished hole and breaking through the bottom plate portion.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: March 26, 2002
    Assignee: General Electric Company
    Inventors: Marshall Gordon Jones, Steven Robert Hayashi, Bin Wei
  • Elevator system and speed governing apparatus
    Patent number: 6360847
    Abstract: An elevator system and a speed governor detecting first over-speeds of different values set for different moving directions of an elevator car. The speed governor includes a fly weight speed governing mechanism on a sheave on which a speed governing rope is wound and operates in both ascending and descending modes of the elevator car, and a fly ball speed governing mechanism coupled with a horizontal shaft of the sheave via a clutch mechanism. The clutch mechanism transmits the torque of the sheave to a second shaft of the fly ball speed governing mechanism when the sheave rotates in a forward direction, and disengages the transmission of the torque to the second shaft when the sheave rotates in a reverse direction.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: March 26, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Mineo Okada, Yoshikatsu Hayashi
  • Sound reproducing system and method capable of decoding audio data even in case of failure of detecting syncword
    Patent number: 6363514
    Abstract: A sound reproducing system that decodes audio data in a frame with which detection of a syncword fails, if a syncword included in a subsequent frame is detected, if correctness of bit stream information in the subsequent frame is proved, and if no CRC error is detected (when CRC is included). This makes it possible to solve a problem involved in a conventional system in that when a unit frame without an error check pattern is input and a synchronization detector produces a synchronization detection error signal, unpleasant sound interruption can take place even if the audio data is correct, because the correctness of the audio data cannot be checked, and hence the audio data cannot be decoded in this case.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: March 26, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takahiro Kawai, Chuya Hayashi
  • Low temperature process for fabricating layered superlattice materials and making electronic devices including same
    Patent number: 6362503
    Abstract: A liquid precursor containing thallium is applied to a first electrode, RTP baked at a temperature lower than 725° C., and annealed at the same temperature for a time period from one to five hours to yield a ferroelectric layered superlattice material. A second electrode is formed to form a capacitor, and a second anneal is performed at a temperature lower than 725° C. If the material is strontium bismuth thallium tantalate, the precursor contains (m−1) mole-equivalents of strontium for each of (2.2−x) mole-equivalents of bismuth, x mole-equivalents of thallium, and m mole-equivalents of tantalum, where m=2 and 0.0<×≦2.2.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: March 26, 2002
    Inventor: Shinichiro Hayashi
  • Method of making an electrolytic capacitor having a conductive polymer formed on the inner surface of micropores of the anodes
    Patent number: 6361572
    Abstract: Disclosed is a method of making an electrolytic capacitor including the steps of forming a cathode by depositing a homogeneous and densified conducting polymer on a dielectric layer of a valvular metal porous anode. The conducting polymer is formed of two layers by chemical oxidation polymerization. The first conductive polymer layer is formed in the pretreatment step using a solution excluding an organic acid-type dopant, the polymer is efficiently formed on the inner surface of the pores of the anode and the second conductive polymer layer is formed in the primary treatment step on the first conductive polymer layer, using a solution containing an organic acid-type dopant. The resultant capacitor obtains a high capacitance, a low impedance, and a high responsiveness at high frequencies.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: March 26, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Emiko Igaki, Masakazu Tanahashi, Chiharu Hayashi
  • Optical crossconnect apparatus and optical transmission system
    Patent number: 6362905
    Abstract: An optical crossconnect apparatus which includes one terminal connected to a transmission path from one optical transmission terminal station and another terminal connected to a transmission path from another optical transmission terminal station, a first optical signal switch having “M1” ports and “N1” ports, through which the optical signal can pass, a second optical signal switch having “M2” ports and “N2” ports, through which the optical signal can pass, and “L” optical signal repeaters, one end connected to the “N1” ports of the first optical signal switch, and the other end connected to the “N2” ports of the second optical switch. The “N1” and the “N2” ports are equal to “L” optical signal repeaters.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: March 26, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Yasuyuki Fukashiro, Yukio Hayashi, Shigeki Kitajima, Tatsuo Kanetake, Masahiro Takatori, Shoichi Hanatani, Hirohisa Sano
  • Disk tilting compensation with an offset signal to control the location of a light beam
    Patent number: 6363039
    Abstract: An optical information recording and playback apparatus for recording and playing back an optical information recording medium having a transparent protective layer comprises a tilt detection device and an off-track adding device, and includes means for determining an optimum direction in which the center of a light spot is to be displaced from the centerline of an information track on the optical information recording medium to compensate for the tilting of the optical information recording medium relative to the light beam, means for setting the amount of displacement as fixed values, and means for splitting the optical information recording medium into a number of areas and for activating a tilt detection function each time switching is made from one area to another during recording or playback.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: March 26, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideki Hayashi, Yasuo Fujikawa, Shin-ichi Kadowaki, Ryusuke Horibe
  • Polishing apparatus, semiconductor device manufacturing method using the polishing apparatus, and semiconductor device manufactured by the manufacturing method
    Publication number: 20020033230
    Abstract: The present invention provides a polishing apparatus with a construction which makes it possible to prevent the peripheral portions of a substrate from sloping downward as a result of the polishing member tilting at the peripheral portions of the substrate during the polishing of the substrate, and which makes it possible to adjust the contact pressure quickly in accordance with changes in the contact area between the polishing surface and the substrate surface.
    Type: Application
    Filed: May 23, 2001
    Publication date: March 21, 2002
    Applicant: Nikon Corporation
    Inventors: Yutaka Hayashi, Yutaka Uda
  • Method for hydrophilic treatment of metal surface
    Publication number: 20020033379
    Abstract: The present invention is to provide a hydrophilic treating method of the surface of metal comprising, the first process which treat the surface of metal with a chemical conversion solution to form a chemical conversion film on the metal surface while etching the metal surface and the second process which remove said film formed on the surface of metal to obtain rougher surface, and the final process which forms a hydrophilic film on the surface of metal. Desirably the surface roughness indicated by Rz after above mentioned second process is rougher than 1.5 &mgr;m.
    Type: Application
    Filed: August 1, 2001
    Publication date: March 21, 2002
    Applicant: Nihon Parkerizing Co., Ltd.
    Inventors: Hiroki Hayashi, Mitsuhiro Matsumoto, Hiroyuki Iizuka