Patents Represented by Attorney Alfred W. Froebrich
  • Patent number: 5550538
    Abstract: A navigation system mounted on a vehicle computes in advance an optimal route from a starting point to a destination. When the vehicle travels off the optimal route, the navigation system detects an off-route deviation. When an off-route deviation is detected, the system computes a restoration route from the vehicle's present position to a selected point on the optimal route and rapidly displays navigational information to guide the vehicle thereto. Thus there is no need for the system to compute a new optimal route from the present position to the destination, and there is no delay in supplying the driver with navigational information.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: August 27, 1996
    Assignee: Zexel Corporation
    Inventors: Takao Fujii, Tatsuhiko Abe
  • Patent number: 5540967
    Abstract: An optical disc comprises two facing disc units, at least one of which has a recording layer formed on its surface facing to the other disc unit. The disc units are bonded together by a layer of adhesive which may be a room-temperature curing thermosetting adhesive having a glass transition temperature higher than the upper limit of the range of temperatures of environments in which the disc may be used. Alternatively, the adhesive may be a room-temperature curing two-pack epoxy adhesive which comprises a bisphenol epoxy resin base agent and a modified aliphatic polyamine curing agent, and which has a viscosity of 100-1000 cps, a pot life of one hour or more, a cure shrinkage of 1.0% or less, a water absorption, after curing, of 0.2% or less, and a Shore hardness, after curing, of 80-90.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: July 30, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukari Toide, Kazuhiko Tsutsumi, Motohisa Taguchi, Kazuo Kuramoto, Masaru Tsuchihashi
  • Patent number: 5536105
    Abstract: A device for tight fixing a rotary body such as a gear and a pulley, to a rotary shaft such as a motor shaft and a transmitting shaft, provides a slippage between the rotary body and the rotary shaft when an over-load occurs to the rotary body. A groove portion is formed either at the inner surface of a mounting hole in the center of the rotary body or at the outer surface of the rotary shaft, in which a pair of key members having a tapered contact surface are arranged in the longitudinal direction of the rotary shaft. A clamping bolt going through one of key members is screwed into the other key member, and pressed to both key members. Due to the pressure from the clamping bolt, each key member is displaced outward as guided by the tapered surface. One of key members makes a contact with the inner surface of the mounting hole or rotary body, and at the same time, the other begins to press the outer surface of the rotary shaft, respectively.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: July 16, 1996
    Assignee: Myotoku, Ltd.
    Inventor: Yoji Ise
  • Patent number: 5533369
    Abstract: A safety lock and key includes a cylindrical stator and rotor having conventional spring-loaded moving rotor pins and moving stator pins. A first rotor pin/stator pin combination is at substantially 45 degrees to a first face of the key while a second rotor pin/stator pin combination is substantially perpendicular to a second face of the key on the opposite side. The centerlines of the rotor pin/stator pin combinations pass through the center of rotation of the rotor. A housing in the key contains a moving element and emerges from the first face of the key inclined at the same angle as the first rotor pin/stator pin combination. The housing also emerges from the second face of the key through a tapered bore that receives the second rotor pin/stator pin combination. A tapered head of the second rotor pin engages a rear portion of the moving element in the housing, thus engaging the moving element with the first rotor pin/stator pin combination.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: July 9, 1996
    Assignee: Talleres de Escoriaza, S.A. (TESA)
    Inventor: Luis Valdajos-Gallego
  • Patent number: 5512722
    Abstract: A membrane switch is actuated by pressure transmitted from a movable key member through two coaxial springs connected end-to-end. A first of the two springs is held by the key member in a partially strained state requiring an initial force to strain it further. The second spring, smaller in diameter and stiffer than the first, has a free end at which force is applied to the membrane switch. As a top of the key member is pressed, the free end of the second spring moves toward, touches, then presses the membrane switch. Force builds rapidly with displacement in the small spring until it reaches the initial force under which the first spring is retained. This initial force is made roughly equal to the force required to actuate the membrane switch. After that point, the force-displacement characteristic is that of the two-spring combination, which is less stiff than the second spring alone. Thus, long key travel is permitted while the actuation force is reached early in the displacement of the key member.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: April 30, 1996
    Assignee: SMK Corporation
    Inventors: Kumio Ozeki, Fumio Watanabe, Haruo Yoshida, Osam Kamishima, Yosuke Sakai
  • Patent number: 5508994
    Abstract: A disk player has a magazine for storing disks on carriages and a disk transport mechanism transporting a selected disk between four positions including an eject position, a load position, a playback position, and a store position which lie in a single plane. The selected disk is carried upon a carriage from the magazine to the load position where the selected disk is partially removed from the magazine to the playback position above a disk reader. An alignment mechanism provides relative movement between the magazine and a plane of transport of the disk transport mechanism permitting a selected disk to be inserted or removed from the magazine at the store position. The disk reader is positioned to read the selected disk while overlapping disks stored in the magazine resulting in a smaller disk player size. The magazine pivotally holds the carriages in a stacked arrangement with prongs engaging recesses in the carriages. The magazine also holds a carriage for accepting disks of two sizes.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: April 16, 1996
    Assignee: Nakamichi Corporation
    Inventors: Niro N. Nakamichi, Yuichiro Hisatomi
  • Patent number: 5504733
    Abstract: A disk player has a magazine for holding disks and mechanisms for transporting disks between four positions, an eject position, a load position, a playback position, and a store position. A disk reader is positioned to read a selected disk in the playback position while the selected disk overlaps disks in the magazine. The disks are held on carriages in the magazine and are transported on the carriages to the disk reader. Each carriage has a V-shaped aperture which provides for access by the disk reader to a recording surface of the selected disk. Clearance for playing the selected disk is also provided by the V-shaped apertures of adjacent carriages in the magazine. The selected disk is raised by the disk reader into an area within the V-shaped aperture of the carriage in the magazine which is above the disk being played. A selected carriage is carried by a tray between the eject position and the load position.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: April 2, 1996
    Assignee: Nakamichi Corporation
    Inventor: Niro Nakamichi
  • Patent number: 5498917
    Abstract: A stator for a motor in which there are provided a ring-shaped yoke portion iron core (2), tooth portion iron cores (3) arranged at an equal interval on the inner circumferential side of the yoke portion iron core (2), stator coils (5) fitted into slots (4) formed between respective adjacent tooth portion iron cores (3), and bridging portions (31) connecting the inner circumferential sides of the respective adjacent tooth portion iron cores (3), and a rotor (6) is oppositely disposed through a gap on the inner circumferential side of the tooth iron cores (3), thus allowing the ratio of length s in a circumferential direction of the bridging portion (31) to pitch p in the circumferential direction of the tooth portion iron cores (3) to fall within a range of 0.01 to 0.20.Accordingly, the cogging torque of a motor can be lowered without lowering EMF.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: March 12, 1996
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Yuji Ninomiya, Kenji Ueyama
  • Patent number: 5483479
    Abstract: A memory cell for an associative storage memory device includes a transmission gate which is rendered conductive or non-conductive in response to a potential on a word line for transferring information between an information hold circuit and a bit line or between the information hold circuit and an inverted bit line. Match line are precharged to ground and supply potentials, respectively, and, thereafter, a retrieval circuit compares information on the bit line or inverted bit line with information held in the information hold circuit and produces a control signal to control the potentials on the match lines in accordance with the result of comparison. After the match lines are precharged, a gating circuit is rendered conductive in response to potentials on output control line and inverted output control line to thereby couple the control signal to the match lines.
    Type: Grant
    Filed: April 21, 1993
    Date of Patent: January 9, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Nobuyuki Osawa, Ichiro Tomioka, Mitsuhiro Deguchi
  • Patent number: D371641
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: July 9, 1996
    Inventor: Alline Crowley