U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5205055

Pneumatic Shoe Lacing Apparatus

This invention provides a pneumatic shoe lacing apparatus for the pneumatic lacing of shoe.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Assignee: FDK Corporation


Location: Tokyo, JP
No. of patents: 61

1    
NumberTitleIssue Date
8032574Probability generating apparatus
The present invention provides a probability generating apparatus offering unexpectedness and an excellent unfair act preventing function. The probability generating apparatus includes a parallel random number generator offering uniformity and consecutively generati...
10/04/2011
7821365Permanent magnet magnetizing apparatus and permanent magnet magnetizing method
To provide a magnetizing apparatus and magnetizing method in which, even in preparation of a ring-shaped permanent magnet having a narrow magnetization pitch with multiple poles magnetized on an extremely small diameter, sufficient magnetization and high magnetizati...
10/26/2010
7608366Nonaqueous electrolytic secondary battery and method of producing anode material thereof
A nonaqueous electrolyte secondary battery having a positive electrode made of a carbonaceous material, an electrolyte containing a lithium salt, and a negative electrode made of metallic lithium or a material capable of occluding and releasing lithium, wherein said...
10/27/2009
7605682Magnetic core type laminated inductor
In a magnetic core type laminated inductor, magnetic gap layers are interposed between layers of conductive patterns, and the magnetic gap layers are formed separately on multiple layers mutually distant from each other while sandwiching a magnetic body layer. Moreo...
10/20/2009
7551343Magneto-optical device and manufacturing method thereof
A magneto-optical device is provided with a non-magnetic substrate, a magneto-optical crystal embedded in recessed portions formed in the surface of the non-magnetic substrate at positions where pixels are to be located, and a partitioning wall monolithic with the n...
06/23/2009
7461111Method of uniforming physical random number and physical number generation device
A method of uniforming physical random numbers while concurrently maintaining a random number generating rate and ensuring security. The method sequentially inputs a plurality of physical random numbers to a shift register to hold them there, and shifts them every t...
12/02/2008
7452633Non-aqueous electrolyte secondary battery and process for producing positive electrode for use in non-aqueous electrolyte secondary battery
A non-aqueous electrolyte secondary battery in which a positive electrode formed of a graphite powder and an negative electrode formed of a material capable of absorption/desorption of a lithium metal or lithium are placed to face each other in an electrolyte contai...
11/18/2008
7379226Variable optical attenuator
A variable optical attenuator comprising a separation/combination birefringent element, fixed polarization rotation means, a convex lens, variable polarization rotation means, and a mirror which are arranged in that order. The fixed polarization rotation means has a...
05/27/2008
7344803Alkaline primary battery
An alkaline primary cell which is improved in reduction of self-discharge and cell capacity under storage at a high temperature, has a prolonged life and makes use of nickel oxyhydroxide is provided inexpensively. β-Form nickel oxyhydroxide is contained in a positi...
03/18/2008
7345567Inverter transformer
Variation in inductance and leakage inductance between the secondary windings is reduced thereby making lamp currents uniform and thus preventing the occurrence of uneven brightness. A two-output inverter transformer comprises a bobbin having a primary winding wound...
03/18/2008
7280264Magneto-optical device
It is possible to reduce the size of a magneto-optical device, increase the speed of optical control, simplify power supply structure and its control, and maintain a Faraday rotation angle in an arbitrary state even after shut-off of the excitation current. The magn...
10/09/2007
7243117Random number generator and probability generator
A random number generator includes a flip-flop in which an output state (0 or 1) becomes definite according to a phase difference between signals inputted to two input units, a delay unit for producing the phase difference in these two input signals, and a feedback ...
07/10/2007
7238449Nonaqueous electrolytic secondary battery and method of producing anode material thereof
A nonaqueous electrolyte secondary battery having a positive electrode made of a carbonaceous material, an electrolyte containing a lithium salt, and a negative electrode made of metallic lithium or a material capable of occluding and releasing lithium, wherein said...
07/03/2007
7233717Reflective optical switch
A reflective optical switch comprises an input/output port portion; a polarization separator/combiner for separating lights in the same optical path and combining lights in different optical paths; a Faraday rotation angle changer; a polarization rotator for changin...
06/19/2007
7218196Noncontact coupler
A noncontact coupler comprising a pair of magnetic cores 1, 1 each having a U-shaped open magnetic path, a primary coil L1 and secondary coil L2 being wound around said cores 1, 1 separately respectively, said coupler transmitting AC elec...
05/15/2007
7173182Signal transmission cable with connector
A signal transmission cable with a connector, that includes a shielded cable having a shielding layer and an insulating coating layer, which cover a periphery of a plurality of insulated wires, and a magnetic powder compound layer interposed between the shielding la...
02/06/2007
7072191Switching power source circuit for independent per cycle control of ON/OFF time ratio
A switching power supply circuit, which can respond to a rapid and large change in a load quickly and stably and ensure a power supply output having a predetermined voltage, is provided. In the power supply circuit which supplies an input current to a load while swi...
07/04/2006
7050232Optical circulator and optical switch
A first separating/combining birefringent element 10, first and second optical-path controlling birefringent elements 11, 12, and a second separating/combining birefringent element 13 are spaced apart. Between the first separating/combining bire...
05/23/2006
7050216Variable optical filter
A variable optical filter comprises a first polarizer, a first phase difference element operable to generate a phase difference, a variable Faraday rotator operable to impart a variable Faraday rotation, a second phase difference element operable to generate a phase...
05/23/2006
D521166Flash light
05/16/2006
7024073Reflective variable light attenuator
A reflection-type variable optical attenuator comprises: a main attenuator unit including a first birefringent crystal plate, a Faraday rotational angle varying unit, and a second birefringent crystal plate arranged in this order; an input port and an output port th...
04/04/2006
7009767Polarization separating/synthesizing element and optical device using it
A polarized-light separating/combining element is obtained which can suppress deviation in a direction of rays (angular error), reduce beam coupling loss and improve extinction ratio. Size reduction and loss lowering is achieved for an optical device (optical circul...
03/07/2006
7006273Faraday rotation device and optical device using same
Optical devices including a Faraday rotation devices improved in wavelength and temperature characteristics and an optical attenuator reduced in wavelength dependence and temperature-dependent loss. The Faraday rotation device has permanent magnets magnetized in an ...
02/28/2006
6975200Microconverter and laminated magnetic-core inductor
A surface-mount microconverter is formed by mounting a microinductor chip and a semiconductor integrated circuit chip on a circuit board. Stud terminals are arranged on the circuit board and the microinductor chip is supported on the stud terminals, and the microind...
12/13/2005
6938770Blister pack display holder
A blister pack display holder for holding a plurality of blister packs arranged vertically comprising a back plate adapted to be hung on a vertical structure, a frame with an open top end arranged adjacent to the back plate with a slight gap therebetween, wherein th...
09/06/2005
6906843Ferrule attachment type optical isolator, and manufacturing method thereof
An optical isolator comprising a combination of an optical isolator main body and a holder holding the optical isolator main body, the optical isolator main body including a Faraday rotator element, a polarizer and an analyzer disposed at the front and back of the F...
06/14/2005
6900574Stepping motor
A stepping motor 10 comprises a rotor 3 of a permanent magnet 2 having multiple poles magnetized in the circumferential direction, and multiple stator yokes 5a and 5b disposed on the outer periphery of this rotor 3...
05/31/2005
6885278Microconverter and laminated magnetic-core inductor
A surface-mount microconverter is formed by mounting a microinductor chip and a semiconductor integrated circuit chip on a circuit board. Stud terminals are arranged on the circuit board and the microinductor chip is supported on the stud terminals, and the microind...
04/26/2005
D503640Battery checker
04/05/2005
6876480Farady rotation device and optical device comprising it
Optical devices including a Faraday rotation devices improved in wavelength and temperature characteristics and an optical attenuator reduced in wavelength dependence and temperature-dependent loss. The Faraday rotation device has permanent magnets magnetized in an ...
04/05/2005
6870675Variable optical attenuator
A variable optical attenuator is disclosed which comprises a plane-parallel birefringent element for separation/synthesis which separates light beams having orthogonal polarization directions on the same optical path, the birefringent element synthesizing light beam...
03/22/2005
6861938High-frequency power inductance element
A high frequency power inductance element capable of remarkably reducing a leakage by remarkably reducing an interwinding capacity, remarkably increasing heat radiation from coils, and remarkably improving productivity and a cost, comprising coils formed of a band-s...
03/01/2005
D500377Headlamp
12/28/2004
6818577Optical waveguide element and method for preparation thereof
An optical waveguide element that can stably and inexpensively form an optical waveguide of low loss and low stress in a glass material by ion exchange of Ag ions, and to provide a process for producing the same are provided. The optical waveguide element is made of...
11/16/2004
6809622Coil Device
A coil device, which has a coil composed of a core and a winding on the core, and a terminal having a base seat for holding the coil and terminal elements. The coil device has a flange on one side of the core with no flange being provided on the other side of the co...
10/26/2004
6800215Low-loss magnetic oxide material and method for making
A Ni type ferrite material of a low magnetic loss. The Ni type ferrite material is formed by adding MnO2 in an amount of 0.1 to 10 mol % to a ferrite material of a composition containing Fe2O3 in 40 to 50 mol %, ZnO in 20 to 33 mol %...
10/05/2004
6798566Variable optical gain equalizer and variable branching ratio beam splitter
A variable optical gain equalizer in accordance with one embodiment of the present invention comprises a variable branching ratio beam splitter having a variable polarization rotator, the variable branching ratio beam splitter branching an input light beam into two ...
09/28/2004
6667827Beam shutter
A beam shutter is provided which comprises a plane-parallel birefringent element for separation arranged to separate input light beams having orthogonal polarization directions on the same optical path; a plane-parallel birefringent element for synthesis ...
12/23/2003
6617949Choke coil
A choke coil has small difference of wire wound resistances between coils to obtain sufficient unbalance attenuation amount, superior in workability in winding and reduced leakage inductance and line capacity. The choke coil includes first and second coil...
09/09/2003
6573820Inductor
An inductor of the invention is obtained by forming conductors of a desired shape on bendable plate type support members, providing a slit in one end of each of the conductors, and a claw on the other end of each of the conductors, bending the plate type ...
06/03/2003
1    
 
Sign InRegister
Username  
Password   
forgot password?