| Patent Number |
Title Of Patent |
Date Issued |
| D573949 |
Housing of connector plug for optical fiber |
July 29, 2008 |
|
| D565066 |
Holder for an optical connector end-face polishing machine |
March 25, 2008 |
|
| D528572 |
Moving side bush for a disc-molding die |
September 19, 2006 |
|
| D526667 |
Sprue cutting punch for a disc-molding die |
August 15, 2006 |
|
| D521033 |
Inner stamper holder for a disc-molding die |
May 16, 2006 |
|
| D521032 |
Sprue bush for a disc-molding die |
May 16, 2006 |
|
| D520034 |
Cavity ring for a disc-molding die |
May 2, 2006 |
|
| 7377699 |
Optical connector |
May 27, 2008 |
| To extend the service life of a latch of a plug housing and facilitate assembly and aligning operations of an optical connector. The optical connector includes a latch provided in a cantilever form on an external surface of the optical connector and deformable for attachment/detachment |
| 7373053 |
Optical fiber array and manufacturing method thereof |
May 13, 2008 |
| The present invention provides a high-density and high-precision optical fiber array which can stably be manufactured with excellent operability and which can maintain excellent characteristics while suppressing insertion loss with respect to optical parts by optimizing constituent p |
| 7270535 |
Disc-molding mold, molded product, molding machine and disk-shaped member |
September 18, 2007 |
| An object is to provide a disc-molding mold which can increase the degree of transfer of a pattern of a stamper to thereby improve quality of molded products, as well as a molded product and a molding machine. In the vicinity of the outer peripheral edges of first and second disc-sha |
| 7123784 |
Electro-optic modulator with particular diffused buffer layer |
October 17, 2006 |
| An electro-optic modulator (300) comprises a substrate (310) made of a material which has an electro-optic effect and a pyroelectric effect. In the substrate (310), an optical waveguide (320) is formed to have at least a pair of optical paths. On the substrate (310) and on the optical |
| 7001080 |
End face polishing method |
February 21, 2006 |
| An end face polishing method provides an end face polishing apparatus having a main body, a jig board mounted on the main body and supporting at least one workpiece, a polishing board mounted on the main body for undergoing rotational and revolving movements relative to the main body, |
| 6883976 |
Optical fiber ferrule assembly and optical module and optical connector using the same |
April 26, 2005 |
| In an optical fiber ferrule assembly, a bare optical fiber, an end coating of which is removed, is inserted and fixed into the central hole of a ferrule body. By setting the distance between a boundary point at which the bare optical fiber is fixed at the rear end of the ferrule body and |
| 6776534 |
Optical attenuator |
August 17, 2004 |
| An optical attenuator includes a holding sleeve, a pair of ferrules inserted into and fixed to the holding sleeve such that the ferrules oppose each other at base ends thereof at a predetermined distance between each base end, and an attenuating fiber inserted into and fixed to the p |
| 6751374 |
Light-signal delaying device |
June 15, 2004 |
| A light-signal delaying device according to the present invention includes a linear guide rail and a pair of stages mounted on the linear guide rail. The device further includes a V-groove holder mounted on one of the stages, a pair of optical fiber collimators secured to the V-groove |
| 6724959 |
Wedged and lensed optical fiber |
April 20, 2004 |
| There is provided an optical fiber to be coupled to a laser diode light source. The optical fiber has a wedge-shaped lens for decreasing the influence of reflection light B.sub.R1 and returning reflection light B.sub.R2, whereby the laser diode light source can be operated with stabi |
| 6715932 |
Eccentric optical fiber connector ferrule and method of manufacturing the same |
April 6, 2004 |
| An eccentric optical fiber connector ferrule according to the present invention comprises an optical fiber in which a coating at an end thereof is removed to expose the end of the fiber, a metallic coating bonded to a part of a side face at the end of the optical fiber in an axial direct |
| 6563987 |
Optical multiplexing/demultiplexing device with variable branching ratio and optical coupler wit |
May 13, 2003 |
| An optical multiplexing/demultiplexing device with variable branching ratio is disclosed. The device includes a first collimator lens assembly having a first collimator lens 14, and first and second optical fibers F.sub.1 and F.sub.2 which have distal ends thereof optically coupled to th |
| 6558152 |
Disc-molding mold |
May 6, 2003 |
| A disc-molding mold includes a first support plate disposed at the stationary side of the mold; a first mirror-surface disc attached to the first support plate; a first guide ring disposed radially outside the first mirror-surface disc and attached to the first support plate; a secon |
| 6477292 |
Reflection mirror type optical fiber switch |
November 5, 2002 |
| A small reflection mirror type optical fiber switch solves a problem of an inconsistent angle of a shutter operating position in a conventional reflection mirror type optical fiber switch. A reflection mirror type 2.times.2 optical fiber switch includes a first collimator lens assembly |
| 6341191 |
Variable attenuation type optical power attenuator with latching ratchet |
January 22, 2002 |
| A variable attenuation type optical power attenuator permits easier adjustment of the amount of optical attenuation and it is able to securely maintained an adjusted or set amount of attenuation. The variable attenuation type optical power attenuator employs a fixed ferrule and a rot |
| 6335993 |
Rotary switch type optical fiber switch |
January 1, 2002 |
| A rotary switch type optical fiber switch according to the present invention includes a plurality of lined-up sleeves disposed on at least one concentric circle about a reference axis and a fixed side ferrule with optical fiber mounting plate assembly for supporting fixed side ferrules |
| 6307982 |
Optical fiber switch |
October 23, 2001 |
| An optical fiber switch of the present invention is composed of a fixed side ferrule assembly and a movable side ferrule assembly. The fixed side ferrule assembly is composed of a multiplicity of lined-up sleeves 12, a fixed side ferrule support plate 10 for two-dimensionally disposing t |
| 6280099 |
Optical fiber wavelength filter and manufacturing method for the same |
August 28, 2001 |
| An optical fiber wavelength filter which has superior optical properties and a manufacturing method for the same are disclosed. The optical fiber wavelength filter is composed of: a pair of glass ferrules which are transparent to ultraviolet rays and which are provided with optical f |
| 6266461 |
Optical fiber switch circuit |
July 24, 2001 |
| An optical fiber switch circuit combines optical fiber switches that are capable of switching the connection of many circuits at the same time by using fewer actuators. The optical fiber switch circuit combines at least one N x 2N, N being equal or greater than 1 optical fiber switch whi |
| 6257971 |
Apparatus for polishing end surface of optical fibers |
July 10, 2001 |
| An apparatus for simultaneously or selectively grinding ends of a plurality of optical fibers held by optical fiber end devices such as connectors including ferrules. The apparatus has a holder plate having a plurality of types of supporting structures for fixing and supporting a plurali |
| 6165055 |
Optical fiber end surface polishing apparatus |
December 26, 2000 |
| A polishing holder arm includes a polishing holder mounting/dismounting device having a base section supported by a base plate through a horizontally rotational shaft to permit the device to rotate and move upward from an approximately horizontal position and the other end section en |
| 6160929 |
2.times.2 optical fiber switch |
December 12, 2000 |
| A 2.times.2 optical fiber switch has a structure that does not produce an alignment error between the position of the central axis of optical fiber assemblies with lenses and the symmetry center position of rectangular prisms, thereby obviating the need of the skill for assembling adjust |
| 6144782 |
N.times.2N optical fiber switch |
November 7, 2000 |
| An optical fiber switch for switching N.times.2N (N.gtoreq.1) circuits is capable of mechanically switching a plurality of pairs of optical fiber circuits at the same time. The optical fiber switch moves an N (N.gtoreq.1) number of movable optical fibers at the same time by a drive m |
| 6126434 |
Disk injection mold apparatus having mold opening guide means |
October 3, 2000 |
| A horizontal type disk injection mold apparatus having a stationary and a movable mold base, cylindrical cavity molds provided at the center of each base, and a pair of cylindrical guide rings provided concentrically at the outer peripheries of each disk cavity mold, one such guide ring |
| 6113284 |
Optical fiber light source assembly and manufacturing method for the same |
September 5, 2000 |
| An optical fiber light source assembly is constructed by assembling a light emitting device, a condenser lens, and a ferrule receptacle means for receiving an optical fiber ferrule in a housing. The ferrule receptacle means is adjusted on its optical axis in relation to the housing and i |
| 6077154 |
Polishing apparatus for optical fiber end surface |
June 20, 2000 |
| The present invention provides a polishing apparatus for optical fiber end surface making it possible to freely adjust the contact pressure between a polishing plane and the distal end face of a ferrule and capable of preventing a defective product from being produced under polishing. A |
| 6019587 |
Stamper plate attaching/detaching device of an injection mold for forming an optical disc substr |
February 1, 2000 |
| A stamper plate attaching/detaching device of an injection mold for forming an optical disc substrate wherein a stamper plate is supported in a cavity which is formed by a cavity side disc cavity plate, a movable disc cavity plate, and a cavity ring. The stamper plate attaching/detaching |
| 5946436 |
Structure of optical connector and aligning method |
August 31, 1999 |
| The invention provides a structure of an optical connector and an aligning method which are capable of easily accomplishing the alignment between optical fibers without pre-alignment before the assembling of the optical connector and disassembling of an optical connector assembly. A tube |
| 5869111 |
Disk injection mold apparatus having mold opening guide means |
February 9, 1999 |
| A horizontal type disk injection mold apparatus having a stationary and a movable mold base, cylindrical cavity molds provided at the center of each base, and a pair of cylindrical guide rings provided concentrically at the outer peripheries of each disk cavity mold, one such guide ring |
| 5820898 |
Metal mold apparatus for molding an optical disk |
October 13, 1998 |
| An optical disk metal mold apparatus includes a fixed cavity plate; a movable cavity plate facing the fixed cavity plate; a disk-shaped plate disposed on at least one of the fixed and movable cavity plates such that it is movable with respect thereto; a stamper plate concentrically s |
| 5809193 |
Optical device having a slant connecting end surface |
September 15, 1998 |
| An optical device having at least one slant optical connecting interface is disclosed. The optical device comprises a ferrule assembly, a GRIN rod lens assembly and a means for aligning the interface. The ferrule assembly comprises a pair of optical fibers with the distal ends thereof in |
| 5798122 |
Stamper plate mounting device of an injection mold for making an optical disc substrate |
August 25, 1998 |
| A stamper plate mounting device for an injection mold for making an optical disc substrate. A stamper plate is detachably supported in a cavity hollow which is formed between a cavity side disc cavity plate and a movable disc cavity plate of the injection mold for making an optical disc |
| 5792492 |
Optical disk molding apparatus equipped with liquid sealing means |
August 11, 1998 |
| An optical disk molding apparatus is provided which includes a fixed side mold assembly and a movable side mold assembly. Each mold assembly has a mounting plate, a disk cavity plate, a temperature control liquid passage, and a temperature control liquid sealing device. The temperature c |
| 5783233 |
Cooling device of an injection mold for making an optical disk substrate |
July 21, 1998 |
| A cooling device of an injection mold for an optical disk substrate reduces the chances of cavitation caused by a turbulent flow of passing cooling water, thus enabling a disk cavity plate to be cooled uniformly. A plurality of main arc-shaped passages, which have the same cross-sectiona |
| 5753275 |
Cavity plates aligning and guiding apparatus in disk injection molding dies |
May 19, 1998 |
| An apparatus for guiding and aligning fixed side and movable side disk cavity plates of disk injection molding dies of an injection molding device is provided with a plurality of first grooves formed on the outer surface of the fixed side disk cavity plate and a plurality of second g |
| 5682452 |
Optical fiber ferrule and optical coupler |
October 28, 1997 |
| An optical fiber ferrule holding multiple fibers and an optical coupler using the ferrule are provided. An optical fiber ferrule is constructed such that N optical fibers (N equals four or an even number of six or more) are inserted into and fixed in a terminal end hole of the ferrule. |
| 5677976 |
Optical attenuation fiber assembly |
October 14, 1997 |
| A mass-producible optical attenuation fiber assembly is provided with a first optical fiber with a predetermined attenuation, a second optical fiber connected to a first end of the first optical fiber and a ferrule for fixedly holding the other end of the first optical fiber. In this |
| 5675683 |
Optical coupler constructed using optical fiber ferrules |
October 7, 1997 |
| An optical coupler is formed comprising a pair of optical fiber ferrules having four optical fibers fastened within a throughhole in the ferrule, a pair of contiguous graded index rod lenses, and a thin film between the graded index rod lenses which partially transmits incident light and |
| 5668905 |
Optical fiber ferrule assembly having angular index showing polarization plane |
September 16, 1997 |
| An optical fiber ferrule assembly is equipped with an angular index for indicating a polarization plane of an optical fiber. The assembly includes a polarization plane maintaining optical fiber, an optical fiber ferrule for accommodating the optical fiber so that the optical fiber is fix |
| 5631992 |
Optical fiber LED assembly |
May 20, 1997 |
| An optical fiber LED assembly for coupling light from a light source element to an optical fiber via a rod lens with distributed refractive index provides improved stability by controlling deterioration in the optical coupling efficiency of the assembly with a lapse of time. The ligh |
| 5621835 |
Optical fiber assembly and manufacturing method for the same |
April 15, 1997 |
| An optical fiber assembly which can be used without deterioration in the performance thereof even when it is used under a severe environmental condition wherein temperature frequently changes over a wide temperature range. The structure of an optical fiber assembly in accordance with the |
| 5612062 |
Means for holding stamper plate in molding metal die |
March 18, 1997 |
| In a means for holding a stamper plate in a molding metal die so that the stamper plate can be easily mounted on and dismounted from the surface of a disc cavity plate, the means comprises the stamper plate having a hole at the center thereof and composed of a ferromagnetic substance, a |
| 5601474 |
Polishing disc of spherical surface polishing device for optical fiber end surface and method fo |
February 11, 1997 |
| A polishing disc of spherical polishing device for polishing optical end surface capable of minimizing optical loss due to reflection in a returning direction. With this polishing disc of polishing device for polishing a spherical surface on optical fiber end surface, a tip end of a |
| 5600744 |
Optical fiber light coupling interface and method for making same |
February 4, 1997 |
| An optical fiber interface for coupling input light power from a light source to an optical fiber. The optical fiber has an optical axis, an incident end face extending transverse to the optical axis, a core region having a predetermined diameter, and a clad region surrounding the core |
