| Patent Number |
Title Of Patent |
Date Issued |
| D521166 |
Flash light |
May 16, 2006 |
|
| D503640 |
Battery checker |
April 5, 2005 |
|
| D500377 |
Headlamp |
December 28, 2004 |
|
| D479014 |
Flashlight |
August 26, 2003 |
|
| D467376 |
Combined flashlight and fluorescent lamp |
December 17, 2002 |
|
| D465045 |
Flashlight |
October 29, 2002 |
|
| D464753 |
Portable light |
October 22, 2002 |
|
| D464454 |
Portable lamp |
October 15, 2002 |
|
| D435127 |
Flashlight |
December 12, 2000 |
|
| D426660 |
Combined flashlight, clock and radio receiver |
June 13, 2000 |
|
| 7379226 |
Variable optical attenuator |
May 27, 2008 |
| 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 compensation film |
| 7345567 |
Inverter transformer |
March 18, 2008 |
| 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 around the middle |
| 7344803 |
Alkaline primary battery |
March 18, 2008 |
| 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. .beta.-Form nickel oxyhydroxide is contained in a positive electrode m |
| 7280264 |
Magneto-optical device |
October 9, 2007 |
| 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 magneto-optical device |
| 7243117 |
Random number generator and probability generator |
July 10, 2007 |
| 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 circuit for contro |
| 7238449 |
Nonaqueous electrolytic secondary battery and method of producing anode material thereof |
July 3, 2007 |
| 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 positive electrod |
| 7233717 |
Reflective optical switch |
June 19, 2007 |
| 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 changing the relationship in |
| 7218196 |
Noncontact coupler |
May 15, 2007 |
| 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 electric power between said primary and secondary coil |
| 7173182 |
Signal transmission cable with connector |
February 6, 2007 |
| 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 layer and the insula |
| 7072191 |
Switching power source circuit for independent per cycle control of ON/OFF time ratio |
July 4, 2006 |
| 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 switching the input c |
| 7050232 |
Optical circulator and optical switch |
May 23, 2006 |
| 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 birefringent element and the first optical- |
| 7050216 |
Variable optical filter |
May 23, 2006 |
| 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 difference, and a |
| 7024073 |
Reflective variable light attenuator |
April 4, 2006 |
| 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 that are arranged on a s |
| 7009767 |
Polarization separating/synthesizing element and optical device using it |
March 7, 2006 |
| 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 circulator or optical sw |
| 7006273 |
Faraday rotation device and optical device using same |
February 28, 2006 |
| 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 axial direction of |
| 6975200 |
Microconverter and laminated magnetic-core inductor |
December 13, 2005 |
| 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 microinductor chip and the |
| 6938770 |
Blister pack display holder |
September 6, 2005 |
| 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 the back plate and r |
| 6906843 |
Ferrule attachment type optical isolator, and manufacturing method thereof |
June 14, 2005 |
| 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 Faraday rotator element |
| 6900574 |
Stepping motor |
May 31, 2005 |
| 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 to form a multiple-phase field magnet of multiple phases. Detent torque o |
| 6885278 |
Microconverter and laminated magnetic-core inductor |
April 26, 2005 |
| 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 microinductor chip and the |
| 6876480 |
Farady rotation device and optical device comprising it |
April 5, 2005 |
| 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 axial direction of |
| 6870675 |
Variable optical attenuator |
March 22, 2005 |
| 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 beams on different optical |
| 6861938 |
High-frequency power inductance element |
March 1, 2005 |
| 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-shaped conductor sp |
| 6818577 |
Optical waveguide element and method for preparation thereof |
November 16, 2004 |
| 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 a multicomponent glas |
| 6809622 |
Coil Device |
October 26, 2004 |
| 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 core. This allows moldin |
| 6800215 |
Low-loss magnetic oxide material and method for making |
October 5, 2004 |
| A Ni type ferrite material of a low magnetic loss. The Ni type ferrite material is formed by adding MnO.sub.2 in an amount of 0.1 to 10 mol % to a ferrite material of a composition containing Fe.sub.2 O.sub.3 in 40 to 50 mol %, ZnO in 20 to 33 mol %, CuO in 2 to 10 mol %, and NiO in the |
| 6798566 |
Variable optical gain equalizer and variable branching ratio beam splitter |
September 28, 2004 |
| 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 light beams at an |
| 6667827 |
Beam shutter |
December 23, 2003 |
| 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 arranged to synthesize light |
| 6617949 |
Choke coil |
September 9, 2003 |
| 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 coils divided into first and second |
| 6573820 |
Inductor |
June 3, 2003 |
| 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 support members, engaging the sli |
| 6571631 |
Displacement sensor and movement information collecting device comprising the same |
June 3, 2003 |
| There is provided a displacement sensor including a moving member composed of a magnetic body; a pair of stators each composed of a magnetic body and arranged opposed to each other with respect to the moving member, the stators including driving coils and position detectors corresponding |
| 6556117 |
Multi-channel uniform output type transformer |
April 29, 2003 |
| A multi-channel output type transformer for outputting uniformly balanced voltage among multiple output channels. The transformer comprising a primary winding and a secondary winding that is wound round a winding shaft portion of a core. The secondary winding of the transformer is a |
| 6515561 |
Connecting structure and frequency adjusting method therein |
February 4, 2003 |
| A connecting structure for high frequency circuits is provided, with which components can be readily replaced, and which does not require high assembly accuracy and is applicable in a broad band. First and second circuit boards each having strip lines on top surfaces thereof are placed |
| 6452473 |
Multilayer inductor and method of manufacturing the same |
September 17, 2002 |
| A laminated inductor used for micro-miniaturized high frequency circuit includes insulating layers and conductive patterns alternately superimposed with each other, and the end of each conductive pattern is connected with each other to form a coil 3 in a laminated form. The starting |
| 6417952 |
Faraday rotation angle varying device |
July 9, 2002 |
| There is provided a Faraday rotation angle varying device in which external magnetic fields are applied from at least two directions to a garnet single crystal having a Faraday effect and a synthesized magnetic field is varied so that Faraday rotation angle of light which transmits throu |
| 6288827 |
Faraday rotator |
September 11, 2001 |
| Disclosed is a Faraday rotator capable of reducing the temperature dependence on a Faraday rotation angle, thereby enhancing the temperature characteristic, particularly, in a service environment in which the magnetization direction is variable, and an optical device using the Farada |
| 6270833 |
Separator for an alkaline cell and a method of producing the separator |
August 7, 2001 |
| A new separator for an alkaline cell is provided, which can prevent deformation to an end of the separator and also prevent short circuits within the cell structure when an external force is added to the cell. The separator has a characteristic that a ratio of a tensile strength of a |
| 6262651 |
Coil device |
July 17, 2001 |
| A coil device includes a coil body with a wiring coil wound therearound. The coil body is composed of an insulative core cover with a core received therein. An insulative base is provided with terminals, which the coil body is to be mounted thereon. The core cover includes a planar suppo |
| 6155722 |
Twin-core ferrule structure for an optical connector |
December 5, 2000 |
| A twin-core ferrule structure is provided which is miniaturized in size, facilitated for accurate positioning the optical axes of two optical fibers, and improved both in degree of freedom of determining a shape and in high-volume productivity. The twin-core ferrule 21 comprises a cy |
| 6072702 |
Ringing choke converter |
June 6, 2000 |
| A ringing choke converter capable of reducing the variation in a switching frequency to a low level even if the variation in load is large is disclosed. The ringing choke converter also serves for improvement of efficiency and solution of noise-problems. A ringing choke converter com |
