Patents by Inventor Mikio Takeuchi

Mikio Takeuchi 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: 6077368
    Abstract: A Ni--Ti superelastic alloy demonstrates superelastic properties at normal temperatures from about 0 and 30.degree. C. The superelastic alloy allows shape alteration when the temperature is in excess of 40.degree. C. The Ni--Ti superelastic alloy is produced by plastic working a composition containing essentially Ni and Ti, and subjecting the composition to heat treatment at a temperature between 600 and 800.degree. C. to impart shape memory. When the Ni--Ti superelastic alloy is used in an eyeglass frame, it allows the shape of the pad arms to be adjusted at temperatures above about 40.degree. C.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: June 20, 2000
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Masayuki Nakamura, Mikio Takeuchi
  • Patent number: 5976281
    Abstract: A Ni--Ti superelastic alloy demonstrates superelastic properties at normal temperatures from about 0 and 30.degree. C. The superelastic alloy allows shape alteration when the temperature is in excess of 40.degree. C. The Ni--Ti superelastic alloy is produced by plastic working a composition containing essentially Ni and Ti, and subjecting the composition to heat treatment at a temperature between 600 and 800.degree. C. to impart shape memory. When the Ni--Ti superelastic alloy is used in an eyeglass frame, it allows the shape of the pad arms to be adjusted at temperatures above about 40.degree. C.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: November 2, 1999
    Assignee: Furukawa Electric Co.
    Inventors: Masayuki Nakamura, Mikio Takeuchi
  • Patent number: 5293160
    Abstract: A keyless lock system for a vehicle includes a card for transmitting a radio signal, at least one onboard antenna for receiving the radio signal, and a control unit for allowing and preventing keyless lock and unlock operations in dependence on the existence or nonexistence of the card in a predetermined area near the antenna. The control unit monitors the position of of at least one monitored door, and produces a card warning signal each time the monitored door is closed if the card is absent in the vehicle.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: March 8, 1994
    Assignee: Nissan Motor Company, Ltd.
    Inventors: Tomotaka Kurozu, Mikio Takeuchi
  • Patent number: 5270407
    Abstract: The present invention relates to a process for copolymerizing ethylene and .alpha.-olefin, or ethylene, .alpha.-olefin, and an unconjugated diene, in the presence of a catalyst in which at least one kind of transition metal compound, such as a V, Zr, or Hf compound, and an organic aluminum compound, are supported, and with the coexistence of a polysiloxane compound. By the process of the present invention fouling can be prevented when an ethylene-based copolymer is industrially prepared. Thus a continuous operation is made possible.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: December 14, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Mikio Takeuchi, Yuji Obara, Masahiko Katoh, Masafumi Ohwaki
  • Patent number: 5233872
    Abstract: An acceleration sensor includes a tubular bobbin only one end of which is fixed to a body whereas the other end is movable relative to the body axially of the bobbin. Supported on the body are magnets for attracting a magnetic member, mounted within the bobbin, to a reference position. A detection member is mounted around the bobbin so as to detect a displacement of the magnetic member from the reference position. A gel can be filled in a receiving space of the body in which the bobbin is received. The body can be of a tubular shape, with covers fixedly secured respectively to opposite ends of the body, in which case opposite ends of the bobbin are disposed in opposed, spaced relation to inner sides of the covers, respectively. The body can be received in a housing, and a circuit board can be received in an auxiliary receiving space in the housing.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: August 10, 1993
    Assignees: Zexel Corporation, Nissan Motor Company, Ltd.
    Inventors: Takeo Kushida, Tomotaka Kurozu, Issei Ohmura, Mikio Takeuchi
  • Patent number: 5196663
    Abstract: In a transmission control apparatus for an automotive vehicle having a shift lever, a controller and a transmission actuator, a shift operation detector is additionally connected between the controller and the transmission actuator to apply an actuator control signal to the transmission actuator only when the shift lever is being operated, thus preventing erroneous operation of the transmission due to external noise. The shift operation detector comprises a touch switch provided on the shift lever knob so as to be closed only when the driver grips the knob and a hold relay energized by the actuator control signal applied from the controller via the closed touch switch.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: March 23, 1993
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomotaka Kurozu, Mikio Takeuchi
  • Patent number: 5157389
    Abstract: A keyless lock system for a vehicle includes a card for transmitting a radio signal, at least one onboard antenna for receiving the radio signal, and a control unit for allowing and preventing keyless lock and unlock operations in dependence on the existence or nonexistence of the card in a predetermined area near the antenna. The control unit monitors the position of at least one monitored door, and produces a card warning signal each time the monitored door is closed if the card is absent in the vehicle.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: October 20, 1992
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomotaka Kurozu, Mikio Takeuchi
  • Patent number: 5134392
    Abstract: A keyless entry system for operating a vehicular door lock device between a first door locking position and a second door unlocking position. The system has an electrically drivable actuator associated with the vehicular device for operating the latter between the first and second positions, a radio signal transmitter of a size equivalent to a credit-card, and being triggerrable by a trigger command and generating a radio code signal containing a preset identification code, the radio signal transmitter having a first antenna.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: July 28, 1992
    Assignee: Nissan Motor Company, Limited
    Inventors: Mikio Takeuchi, Kinichiro Nakano
  • Patent number: 5117664
    Abstract: Sensors such as switches are arranged to detect the insertion of a key into a key cylinder, the rotation of the key to one or more operative positions, the position of a transmission shift level, the depressions of a brake pedal and the like, and to produce signals which are processed by logic circuits in a manner to determine the energization mode and timing of the solenoid or the like motor arrangement in a manner which locks or releases a safety button which must be pressed before the steering column of a vehicle can be locked. The mechanism which performs the locking operation is mounted on the exterior of the housing in which the key cylinder is disposed, thus facilitating assembly.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: June 2, 1992
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomotaka Kurozu, Yoshimitsu Takeda, Mikio Takeuchi, Hiroshi Kato
  • Patent number: 5111199
    Abstract: A radio signal transmitter for use in an automotive keyless entry system, is resistant to damage even when subject bending stresses. The radio code transmitter has a thin housing. A substrate for a transmitter circuit is housed within the thin internal space of the housing. A plurality of circuit components making up the transmitter circuit are mounted on the substrate. The circuit components are arranged in such a manner that relatively large components are near the edges of the substrate and relatively small components are nearer the center of the substrate.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: May 5, 1992
    Assignee: Nissan Motor Company, Limited
    Inventors: Takahisa Tomoda, Mikio Takeuchi, Kinichiro Nakano, Motoki Hirano
  • Patent number: 5109069
    Abstract: A hydrogenated diene copolymer resin composition comprising (A) 5-70% by weight of a hydrogenated diene copolymer which is a hydrogenation product of a random copolymer of at least one conjugated diene and 3-50% by weight of an alkenyl aromatic compound having a number average molecular weight of 5,000-1,000,000 and a molecular weight distribution (Mw/Mn) of 10 or less, the vinyl content in the diene portion of the random copolymer being 10-90%, at least 70% of the olefinic unsaturation of the random copolymer being hydrogenated, and (B) 95-30% by weight of at least one resin selected from the group consisting of a polypropylene resin, a polyphenylene ether resin and an alkenyl aromatic compound polymer resin.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: April 28, 1992
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Tooru Shibata, Toshio Teramoto, Yasuo Takeuchi, Kenya Makino, Masaaki Mawatari, Minoru Maeda, Shinichi Kimura, Minoru Hasegawa, Kunio Goshima, Mikio Takeuchi
  • Patent number: 5058891
    Abstract: A fitting-angle adjustment mark for a grip of a golf clug is disclosed. The rear end surface of the grip, which fits on the rear portion of a club shaft, provides indicies or graduations of the mark directly or by means of an element separate from the grip at predetermined angular intervals with reference to a back line of the grip. The mark enables a golfer to fit the grip on the rear portion of the club shaft so that a fitting angle of the grip relative to a club face is accurately easily adjusted to a correct angle in accordance with his particular putting.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: October 22, 1991
    Inventor: Mikio Takeuchi
  • Patent number: 5055701
    Abstract: A keyless entry system for providing controlled access is provided. This system includes a portable transmitter carried by an authorized person and a control system for controlling a locking mechanism. When locking or unlocking, the portable transmitter outputs an input signal to the control system. Upon receiving the input signal, the control system generates a request code signal for output to the portable transmitter. The request code signal generally includes a sequence of random code and an identification code. The control system further generates a particular code signal into which the random code is converted according to information indicated by a specific code stored in the control system. Simultaneously, in the portable transmitter, the random code is converted in the same manner by a user particular code signal equal to the particular code and is transmitted to the control system.
    Type: Grant
    Filed: August 15, 1989
    Date of Patent: October 8, 1991
    Assignee: Nissan Motor Company, Limited
    Inventor: Mikio Takeuchi
  • Patent number: 5036687
    Abstract: A steering lock system for an automotive vehicle includes a steering lock actuator, a control rod, a solenoid with a corresponding plunger and a portable transmitter which produces a radio signal indicative of a transmitter self-identifying code. When the transmitter self-identifying code matches a preset reference code, the solenoid is energized to move the plunger so as to release an engagement between the plunger and the control rod. Accordingly, the control rod is free to move to a position where no engagement between the control rod and the steering lock actuator is established, to allow the steering lock actuator to shift to a steering wheel unlocking position from a steering wheel locking position.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: August 6, 1991
    Assignee: Nissan Motor Company, Limited
    Inventors: Mikio Takeuchi, Tomotaka Kurozu
  • Patent number: 4980421
    Abstract: A hydrogenation catalyst consisting essentially of (A) at least one bis(cyclopentadienyl)titanium compound represented by the formula (1): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, represent halogen atoms, hydrocarbon groups, aryloxy groups, alkoxy groups or carbonyl groups, and (B) at least one lithium compound represented by the formula (2):R.sup.3 O--Li (2)wherein R.sup.3 represents a hydrocarbon group, or a reaction mixture of an organolithium compound with an alcoholic or phenolic hydroxyl group-containing compound, the (A) component/the (B) component molar ratio being 1/0.5 to 1/20, and optionally (C) at least one reducing organometallic compound selected from the group consisting of aluminum compounds, zinc compounds and magnesium compounds, the (A) component/the (C) component molar ratio being 1/0.5 to 1/20.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: December 25, 1990
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Toshio Teramoto, Kunio Goshima, Mikio Takeuchi
  • Patent number: 4973958
    Abstract: A keyless entry system employs a pocket-portable radio signal transmitter to be carried by a user and a controller mounted on a vehicle and associated with a vehicle device, such as a door lock mechanism, a trunk lid opener, a window regulator, a steering lock device and so forth, to be operated. Radio signal communication between the transmitter and the controller is performed by electromagnetic induction. According to the present invention, electromagnetic induction is caused between antennas in the transmitter and the controller. In order to provide wide communication area, at least the antenna of the controller serves as a transformer to generate higher loop current for generating sufficiently strong magnetic field therearound.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: November 27, 1990
    Assignee: Nissan Motor Company, Limited
    Inventors: Motoki Hirano, Mikio Takeuchi, Kinichiro Nakano
  • Patent number: 4922100
    Abstract: In a method of reading a image information stored in a radiographic image-converting panel having a stimulable phosphor layer thereon, the improvement of present invention includes a step of rectification against a light decay which occur continuously in the phosphor layer with the lapse of time subsequent to image-wise exposure.The rectification enables to get a precise image information having no shading caused by the light decay.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: May 1, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventor: Mikio Takeuchi
  • Patent number: 4898010
    Abstract: A keyless entry system comprises a locking key holder having a key lock pin, an actuator for operating the key lock pin, and a controller which detects a unique identification code of the authorized user and a preset identification code and outputs an activating signal for operating vehicular devices, such as a door lock and/or the actuator. The key may be safely kept in the locking key holder and cannot be removed therefrom unless the unique code has been received. Thus, the necessity for the user to carry a mechanical key is eliminated.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: February 6, 1990
    Assignee: Nissan Motor Company, Limited
    Inventors: Tohru Futami, Mikio Takeuchi
  • Patent number: 4873530
    Abstract: In a ratio-mediated keyless entry system for an automotive vehicle, two vehicle-mounted antennae, lying in mutually perpendicular planes are used to receive radio signals from a portable, manually operable transmitter. When the transmitter is left in the passenger compartment and then the doors are locked, the system generates an alarm to notify the driver of the fact. On antenna completely encircles the passenger compartment. Encircling the passenger compartment with one of the vehicle-mounted antennae ensures that wherever the transmitter is left in the passenger compartment, its presence will be detected no matter how limited the transmitter's range.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: October 10, 1989
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Mikio Takeuchi, Kinichiro Nakano, Kenichi Mitamura, Takahisa Tomoda
  • Patent number: 4861931
    Abstract: A process for producing a 5-alkylidenenorbornene, which comprises contacting a 5-alkenylnorbornene with an organolithium compound and at least one compound selected from the group consisting of ammonia, a hydrazine compound and an aliphatic amine compound wherein at least one nitrogen atom in the molecule bonds to at least one hydrogen atom to isomerize the 5-alkenylnorbornene. This process enables the easy and efficient production of a 5-alkylidenenorbornene from an easily available raw material.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: August 29, 1989
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Yasuo Hara, Ryuji Oashi, Yoshitaka Kawahara, Mikio Takeuchi