| Patent Number |
Title Of Patent |
Date Issued |
| RE38588 |
Lead material for electronic part, lead and semiconductor device using the same |
September 14, 2004 |
| A lead material for an electronic part having no adverse effect on the environment, having excellent solderability, desirable welding strength during welding and a low degree of nonuniform thickness of the plated layer during reflow processing. The lead material has a first plated layer |
| D590774 |
Optical connector ferrule |
April 21, 2009 |
|
| D590773 |
Optical connector ferrule |
April 21, 2009 |
|
| D590344 |
Optical connector ferrule |
April 14, 2009 |
|
| D487061 |
Optical fiber connector |
February 24, 2004 |
|
| D423459 |
Electric harness box for automobiles |
April 25, 2000 |
|
| 7618201 |
Optical module |
November 17, 2009 |
| An optical-waveguide device mounted on a fixing member having a pair of opposing upright walls and a sub-mount unit including a metallic sub-mount of a rectangular solid shape inserted between the opposing upright walls and a nonmetallic sub-mount of a rectangular solid shape mounted |
| 7616003 |
Method for determining deterioration of accumulator battery, method for measuring internal imped |
November 10, 2009 |
| A method for determining the deterioration of an accumulator battery, hooked up with loads in a system, based on the result of measuring internal resistances of an accumulator battery, the method including predetermining a temperature at which the deterioration of the accumulator bat |
| 7613374 |
Optical fiber and optical-fiber transmission line |
November 3, 2009 |
| An optical fiber that transmits a signal light in a fundamental propagation mode has a cutoff wavelength longer than a wavelength of the signal light, a wavelength dispersion of the fundamental propagation mode of -5 ps/nm/km to -1 ps/nm/km at a wavelength of 1550 nanometers, an effe |
| 7609928 |
Method of connecting optical fibers |
October 27, 2009 |
| A method of connecting a holey fiber to an optical fiber includes fusion splicing an end surface of the holey fiber and an end surface of the optical fiber thereby forming a joint section; and stretching the joint section while heating by pulling the holey fiber and the optical fiber |
| 7601011 |
Electrical connecting box and method for protecting printed circuit board and mounted parts insi |
October 13, 2009 |
| An electrical connecting box suitable to widely-ranging temperature conditions from high temperature to low temperature inside the engine room of a vehicle is described, having a printed circuit board 300 and a first protecting member 100 and a second protecting member 200 housing th |
| 7596361 |
Low noise amplification circuit |
September 29, 2009 |
| A low noise amplification circuit comprises a low noise amplifier and a filter coupled to the input terminal of the low noise amplifier. The low noise amplifier comprises an amplifying element and a matching input circuit coupled to the input terminal of the amplifying element. When |
| 7593823 |
Method and device for determining state of battery, and battery power supply system therewith |
September 22, 2009 |
| Coefficients A and B are calculated from the measured temperature and the measured state of charge. Next, a response voltage Vc is calculated by substituting the measured internal impedance X into a response-voltage correlation equation. Besides, by comparing the response voltage Vc with |
| 7593612 |
Optical fiber |
September 22, 2009 |
| A tension-absorbing cladding layer is formed around a cladding layer, with a refractive index equal to that of a center core region or higher. The center core region has a relative refractive index difference of -0.1% to 0% with respect to a pure silica glass, a chlorine concentration of |
| 7593448 |
Semiconductor laser module and optical transmission apparatus using the semiconductor laser modu |
September 22, 2009 |
| A semiconductor laser module includes a distributed-feedback laser. When a predetermined transmission loss, a predetermined number of channels, and a predetermined modulation factor per channel are given, a cavity length of the distributed-feedback laser satisfies a condition that a dist |
| 7583878 |
Optical fiber, optical fiber ribbon, and optical interconnection system |
September 1, 2009 |
| An optical fiber is made of silica-based glass, and includes a core and a cladding. The optical fiber has a mode field diameter of 5.4 micrometers or larger at a wavelength of 1300 nanometers, transmits light with a wavelength of 1250 nanometers in a single mode, and has a bending loss o |
| 7577176 |
Surface emitting laser device |
August 18, 2009 |
| An optical resonator including a lower multilayer reflector and an upper multilayer reflector is arranged on a substrate. A strained active layer having a multiple quantum well structure formed with a quantum well layer and a barrier layer is arranged in the resonator. A current confinem |
| 7574088 |
Optical fiber and optical fiber ribbon, and optical interconnection system |
August 11, 2009 |
| An optical fiber, made of silica-based glass, comprising a core and a cladding. The optical fiber having a mode field diameter of 6.5 .mu.m or larger at a wavelength of 1300 nm, transmitting light with a wavelength of 1250 nm in a single mode, and having a bending loss of 1 dB/turn or |
| 7569282 |
Electromagnetic shielding copper foil, method of production thereof and electromagnetic shield |
August 4, 2009 |
| An electromagnetic shielding copper foil superior in electromagnetic shielding ability, high in transmittance, and free from particle shedding comprising a copper foil on at least one surface of which a fine roughening particle layer of copper or an alloy is provided and having on th |
| 7567378 |
Raman amplifying device and Raman amplifying system |
July 28, 2009 |
| A Raman amplifying device includes a plurality of Raman amplifiers having a gain wavelength characteristic with a gain peak at which an amplification gain becomes the largest, including a first Raman amplifier having a gain wavelength characteristic with a plurality of gain peaks inc |
| 7564563 |
Laser gyro and electronic device using the same |
July 21, 2009 |
| A laser gyro of the present invention includes laser light excitation means (a semiconductor laser device 100) that excites first and second laser lights propagating in the opposite directions to each other in a circular ring-shaped path (an optical path 40), coupling means (optical |
| 7563630 |
Method for fabricating a semiconductor laser device that includes growing current confinement la |
July 21, 2009 |
| A method for fabricating a buried semiconductor laser device including the steps of: forming a mesa structure including a bottom cladding layer, an active layer and a top cladding layer overlying an n-type semiconductor substrate; and forming a current confinement structure by growing a |
| 7561765 |
Optical integrated circuit and optical integrated circuit module |
July 14, 2009 |
| An optical integrated circuit 1 according to the present invention includes a planar lightwave circuit 2, and a semiconductor element 3, which are fixed at one contact surface 12. A semiconductor optical amplifier (SOA) 9 is formed on a semiconductor substrate 8. A semiconductor wave |
| 7560649 |
Conductor of electric cable for wiring, electric cable for wiring, and methods of producing them |
July 14, 2009 |
| A conductor of an electric cable for wiring, containing a copper alloy material containing 1.0 to 4.5 mass % of Ni, 0.2 to 1.1 mass % of Si, and the balance of Cu and unavoidable impurities, in which the copper alloy material has an average grain diameter of 0.2 to 5.0 .mu.m. |
| 7555183 |
Optical fiber ribbon core and optical fiber cable |
June 30, 2009 |
| There are provided an optical fiber ribbon and optical fiber cable which suppress the deterioration of polarization mode dispersion and contribute to the increase of communication capacity in wavelength division multiplexing. An optical fiber ribbon includes a plurality of optical fi |
| 7555175 |
Arrayed waveguide grating optical multiplexer/demultiplexer |
June 30, 2009 |
| An arrayed waveguide grating optical multiplexer/demultiplexer 10 of the present invention 10 comprises one arrayed waveguide grating (AWG) 20 having two input waveguides 21, 22 and two output waveguide-groups 23, 24, and a Mach Zehnder Interferometer-type interleaver 30 integrated with |
| 7551825 |
Colored optical fiber and evaluation method thereof |
June 23, 2009 |
| A colored optical fiber whose transmission loss hardly increases even in a high humidity condition or water-immersed condition is provided. The colored optical fiber according to the present invention is a colored optical fiber having a colored coating layer on a circumference of an |
| 7550675 |
Aluminum conducting wire |
June 23, 2009 |
| An aluminum conducting wire, containing a stranded conductor that is formed by stranding solid conductors of an aluminum alloy, in which the aluminum alloy comprises 0.1 to 1.0 mass % of Fe, 0.05 to 0.5 mass % of Cu, and 0.05 to 0.4 mass % of Mg, in which the total amount of Cu and Mg |
| 7548368 |
Raman amplifier, optical repeater, and raman amplification method |
June 16, 2009 |
| A Raman amplifier according to the present invention comprises a plurality of pumping means using semiconductor lasers of Fabry-Perot, DFB, or DBR type or MOPAs, and pumping lights outputted from the pumping means have different central wavelengths, and interval between the adjacent cent |
| 7544892 |
Crimp contact for an aluminum stranded wire, and cable end structure of an aluminum stranded wir |
June 9, 2009 |
| The present invention is directed to a crimp contact for an aluminum stranded wire having a serration provided in an inner face of a crimping portion of the crimp contact, wherein a ratio d/e is 0.33 or more, in which d represents a depth of a groove constituting the serration and e |
| 7542640 |
Arrayed waveguide grating optical multiplexer/demultiplexer |
June 2, 2009 |
| An arrayed waveguide grating optical multiplexer/demultiplexer includes an arrayed waveguide grating formed on a substrate. The arrayed waveguide grating includes two slab waveguides, one arrayed waveguide, first input/output waveguides respectively connected to each end facet of slab |
| 7539383 |
Buffered optical fiber and manufacturing method thereof |
May 26, 2009 |
| A buffered optical fiber having an excellent pistoning characteristic compared with a conventional one and a manufacturing method thereof are provided. The buffered optical fiber of the present invention is composed of an optical fiber with a primary coating layer and a secondary coating |
| 7539368 |
Arrayed waveguide grating |
May 26, 2009 |
| An arrayed waveguide grating has optical input waveguides, a first slab waveguide, an arrayed waveguide comprising plural waveguides of mutually-different lengths, a second slab waveguide and plural optical output waveguides. The first slab waveguide is divided along division surface |
| 7536074 |
Optical fiber |
May 19, 2009 |
| An optical fiber made of silica-based material includes a core and a cladding formed around the core. The core is doped with germanium dioxide, which increases refractive index and decreases acoustic-wave velocity, and aluminum oxide, which increases both refractive index and acousti |
| 7535629 |
Method and apparatus for controlling multiple-wavelength-pumped Raman amplifier and computer pro |
May 19, 2009 |
| An apparatus, method and computer program product for controlling pumping light powers for a multiple-wavelength-pumped Raman amplifier that is pumped by pumping lights from a plurality of pumping light sources, by measuring gain wavelength characteristic or signal-power wavelength c |
| 7529453 |
Optical fiber and optical transmission medium |
May 5, 2009 |
| An optical fiber includes a core region and a cladding region. The cladding region includes a first cladding region on outer circumference of the core region, which includes a main-medium region and a sub-medium region having a refractive index lower than that of the main-medium regi |
| 7529021 |
Semiconductor laser module, optical amplifier, and method of manufacturing the semiconductor las |
May 5, 2009 |
| A semiconductor laser module has a semiconductor laser device; a package for housing the semiconductor laser device; a PBC fixed in the package for polarization-synthesizing two laser beams output from the semiconductor laser device; a depolarizing element fixed in the package for de |
| 7527434 |
Connecting member |
May 5, 2009 |
| A connecting member which is formed by filling a mold with a resin composition and then solidifying the resin composition, the connecting member having one end face in which a plurality of fine holes of a .phi. or less are arrayed in a row with a pitch P therebetween, and guide pin i |
| 7525726 |
Photonic crystal semiconductor device and production method thereof |
April 28, 2009 |
| To provide a photonic crystal semiconductor device which enables various kinds of optical devices having a photonic crystal structure which is readily formed using a semiconductor and a semiconductor manufacturing process, and a manufacturing method thereof. The object can be achieved |
| 7525284 |
Charging rate estimating method, charging rate estimating unit and battery system |
April 28, 2009 |
| The method for calculating charged rate of a secondary battery is intended to calculate charged rate of a secondary battery which supplies electric power to loads, and comprises the step to measure voltage of the secondary battery more than once in a predetermined period of time after |
| 7519255 |
Optical fiber |
April 14, 2009 |
| An inner core has a first refractive index. An outer core having a second refractive index lower than the first refractive index is formed on outer circumference of the inner core. A cladding having a refractive index that is higher than the second refractive index and lower than the fir |
| 7511883 |
Optical amplifying method, optical amplifying apparatus, and optical amplified transmission syst |
March 31, 2009 |
| A proportional constant adjusting circuit is arranged in the AGC circuit of the optical amplifying apparatus, and the proportional constant of the proportional circuit is continuously adjusted in correspondence to the optical input power monitored by the PD and the logarithmic transf |
| 7505659 |
Optical fiber and optical transmission line and optical communication system including such opti |
March 17, 2009 |
| Optical fibers to form an optical transmission line suitable for WDM transmission in a wide-spreading wavelength band, having the following characteristics and parameters: a dispersion in absolute value of 0.5 ps/nm/km to 9 ps/nm/km in a wavelength band of 1430 nm to 1625 nm, a dispe |
| 7505283 |
Reinforcing structure for metal core board and electric connection box |
March 17, 2009 |
| The metal-core-board reinforcing structure has a metal core board having a metal core and a resin plate having substantially the same extent as that of the metal core board and being fixedly attached to the metal core board substantially parallel to one side of the metal core board and |
| 7502540 |
Optical fiber and optical transmission medium |
March 10, 2009 |
| An optical fiber includes a core region and a cladding region. The cladding region includes a first cladding region on an outer circumference of the core region, the first cladding region including a main-medium region and a sub-medium region having a refractive index lower than a re |
| 7500860 |
Lever type connector including rotation restricting portion |
March 10, 2009 |
| A lever type connector in which a connector holder is reliably fit into a receptacle holder to prevent a half-fitting is provided. In the lever type connector, a restricting recess is provided on the front side of an arm plate of a lever, and below a multiple force recess. When a connect |
| 7492999 |
Optical fiber and optical-fiber transmission line |
February 17, 2009 |
| An optical fiber transmits at least a signal light having a wavelength of 1550 nanometers in a fundamental propagation mode. The optical fiber has, a cutoff wavelength equal to or longer than 1550 nanometers, a wavelength dispersion of 4 ps/nm/km to 7 ps/nm/km in the fundamental propagat |
| 7492983 |
Optical circuit device |
February 17, 2009 |
| The present invention provide an optical circuit device having: an optical circuit; a polarization beam splitter/combiner for splitting an incoming light beam into two polarization beams and combining the two polarization beams into an outgoing light beam; a first optical waveguide and a |
| 7483608 |
Method of designing optical pulse shaping device and optical pulse shaping device |
January 27, 2009 |
| The present invention provides a method for designing an optical pulse shaper including a first optical propagation line unit having a nonlinear medium and a dispersion medium concatenated, including: specifying design specifications of the first optical propagation line unit; and based |
| 7480091 |
Delay-line demodulator and method of adjusting a phase shift in the demodulator |
January 20, 2009 |
| In a method of phase adjustment for the demodulator 1 of the present invention, the phase adjustment is performed by driving any one of the heaters on the two waveguides 10 and 11 in the Mach-Zehnder interferometer (MZI) 6 and on the two waveguides 14 and 15 in the MZI 7. In case tha |
