Assignee
TOKYO OPTICAL
JP·149 granted patents·3,397 citations·filing 1975–1991
Top patents by PatentIndex Score
149 records- 0195US4531833AOptical range finderTOKYO OPTICAL·Filed 1982·Granted Jul 30, 1985·85 cites·6 claims
- 0294US4187014AEye fundus cameraTOKYO OPTICAL·Filed 1978·Granted Feb 5, 1980·27 cites·9 claims
- 0393US4821273AWavelength/output power stabilizing apparatus of semiconductor laserTOKYO OPTICAL·Filed 1987·Granted Apr 11, 1989·62 cites·8 claims
- 0493US4580047ADisplacement measuring device utilizing an incremental codeTOKYO OPTICAL·Filed 1985·Granted Apr 1, 1986·75 cites·4 claims
- 0593US3981709AEdge processing of chemically toughened lensesTOKYO OPTICAL·Filed 1975·Granted Sep 21, 1976·46 cites·5 claims
- 0692US4580046ADisplacement measuring device utilizing an incremental codeTOKYO OPTICAL·Filed 1985·Granted Apr 1, 1986·55 cites·4 claims
- 0791US4465373AEncoderTOKYO OPTICAL·Filed 1981·Granted Aug 14, 1984·45 cites·21 claims
- 0889US4692023AOptical adapter for a light-wave rangefinderTOKYO OPTICAL·Filed 1986·Granted Sep 8, 1987·76 cites·28 claims
- 0988US4803645AMethod and apparatus for measuring coordinatesTOKYO OPTICAL·Filed 1986·Granted Feb 7, 1989·62 cites·7 claims
- 1088US4198143AApparatus for taking photographs of sections of crystalline lenses in which line focusing moves lens in its own planeTOKYO OPTICAL·Filed 1978·Granted Apr 15, 1980·20 cites·3 claims
- 1188US4167302ASurgical microscopes with L-shaped mounting bracketsTOKYO OPTICAL·Filed 1977·Granted Sep 11, 1979·62 cites·5 claims
- 1286USD292526SStand for mounting ophthalmologic instrumentsTOKYO OPTICAL·Filed 1985·Granted Oct 27, 1987·24 cites·1 claims
- 1386US4384204AAbsolute encoderTOKYO OPTICAL·Filed 1981·Granted May 17, 1983·33 cites·13 claims
- 1483US4941744AIntegrated-photocircuit interferometerTOKYO OPTICAL·Filed 1988·Granted Jul 17, 1990·40 cites·8 claims
- 1582US5002388AOptical distance measuring apparatus having a measurement error compensating functionTOKYO OPTICAL·Filed 1989·Granted Mar 26, 1991·48 cites·3 claims
- 1682US4783159AOperation microscopeTOKYO OPTICAL·Filed 1987·Granted Nov 8, 1988·46 cites·5 claims
- 1782US4602242AEncoder for photoelectric measuring devicesTOKYO OPTICAL·Filed 1985·Granted Jul 22, 1986·38 cites·2 claims
- 1881US4858157AApparatus and method for determining the coordinates of a three-dimensional objectTOKYO OPTICAL·Filed 1986·Granted Aug 15, 1989·50 cites·7 claims
- 1979US4773749AOphthalmologic photographing apparatusTOKYO OPTICAL·Filed 1987·Granted Sep 27, 1988·17 cites·20 claims
- 2078US4470664AReflector device for use with optical distance measuring apparatusTOKYO OPTICAL·Filed 1982·Granted Sep 11, 1984·44 cites·8 claims
- 2177US4601575AApparatus for measuring the characteristics of an optical systemTOKYO OPTICAL·Filed 1982·Granted Jul 22, 1986·28 cites·39 claims
- 2276US4758089AHolographic interferometerTOKYO OPTICAL·Filed 1986·Granted Jul 19, 1988·27 cites·6 claims
- 2376US4547667ADisplacement measuring device utilizing an incremental codeTOKYO OPTICAL·Filed 1982·Granted Oct 15, 1985·18 cites·21 claims
- 2476US4507647AEncoderTOKYO OPTICAL·Filed 1981·Granted Mar 26, 1985·24 cites·5 claims
- 2576US4455758ABearing means for angle measuring instrumentsTOKYO OPTICAL·Filed 1983·Granted Jun 26, 1984·26 cites·6 claims
- 2675US4548373AMedical equipment supporting deviceTOKYO OPTICAL·Filed 1984·Granted Oct 22, 1985·122 cites·4 claims
- 2774US4796989AOpthalmological measuring apparatusTOKYO OPTICAL·Filed 1987·Granted Jan 10, 1989·30 cites·4 claims
- 2874US4576160APhototherapeutic apparatus with spot size regulating meansTOKYO OPTICAL·Filed 1983·Granted Mar 18, 1986·77 cites·7 claims
- 2974US4292514AApparatus for, and method for, achieving a temperature compensation of an avalanche photodiodeTOKYO OPTICAL·Filed 1979·Granted Sep 29, 1981·34 cites·4 claims
- 3071US4657357AIllumination system for single objective lens binocular microscopeTOKYO OPTICAL·Filed 1985·Granted Apr 14, 1987·29 cites·19 claims
- 3171US4413904AElectro-optical range finder using three modulation frequenciesTOKYO OPTICAL·Filed 1981·Granted Nov 8, 1983·27 cites·4 claims
- 3270US4325638AElectro-optical distance measuring apparatusTOKYO OPTICAL·Filed 1980·Granted Apr 20, 1982·26 cites·3 claims
- 3369US4702570AStereo-microscope with two observation optical systems each including a right angle prism and a roof right angle prism providing both rotation and relative separation adjustmentsTOKYO OPTICAL·Filed 1986·Granted Oct 27, 1987·25 cites·1 claims
- 3468US4916297ACode readerTOKYO OPTICAL·Filed 1989·Granted Apr 10, 1990·41 cites·9 claims
- 3567US4947849ANon-contact type tonometerTOKYO OPTICAL·Filed 1987·Granted Aug 14, 1990·80 cites·3 claims
- 3667US4838680AOptical system for retinal cameraTOKYO OPTICAL·Filed 1988·Granted Jun 13, 1989·26 cites·6 claims
- 3767US4660290AInclination measuring instrumentTOKYO OPTICAL·Filed 1985·Granted Apr 28, 1987·24 cites·4 claims
- 3867US4601550AStereo-microscope with a common objective lens systemTOKYO OPTICAL·Filed 1984·Granted Jul 22, 1986·18 cites·12 claims
- 3967US4488050ALevel measuring instrument having a staff with light-emitting elementsTOKYO OPTICAL·Filed 1982·Granted Dec 11, 1984·18 cites·7 claims
- 4065US4730924ALens meter and method of measurement of progressive multifocal lens using the sameTOKYO OPTICAL·Filed 1986·Granted Mar 15, 1988·28 cites·14 claims
- 4164US4628612ATilt angle detection deviceTOKYO OPTICAL·Filed 1985·Granted Dec 16, 1986·21 cites·24 claims
- 4264US4544248AOphathalmoscopic camera having a focus detecting systemTOKYO OPTICAL·Filed 1984·Granted Oct 1, 1985·18 cites·9 claims
- 4363US4676004AAutomatic marking device for lensmeterTOKYO OPTICAL·Filed 1985·Granted Jun 30, 1987·21 cites·11 claims
- 4462US4781457ALaser surveying equipmentTOKYO OPTICAL·Filed 1985·Granted Nov 1, 1988·24 cites·11 claims
- 4562US4560271AOptical distance-measuring method and apparatus thereforTOKYO OPTICAL·Filed 1983·Granted Dec 24, 1985·28 cites·16 claims
- 4661US4753498AOptical readerTOKYO OPTICAL·Filed 1986·Granted Jun 28, 1988·23 cites·18 claims
- 4761US4711541ASlit lamp and accessory device thereofTOKYO OPTICAL·Filed 1985·Granted Dec 8, 1987·61 cites·14 claims
- 4861US4357079ASlit pattern projecting apparatus having alignment detecting meansTOKYO OPTICAL·Filed 1979·Granted Nov 2, 1982·15 cites·8 claims
- 4961US4298919ALamp house structure for illumination devicesTOKYO OPTICAL·Filed 1979·Granted Nov 3, 1981·17 cites·3 claims
- 5060US4484816AApparatus for measuring length or angleTOKYO OPTICAL·Filed 1983·Granted Nov 27, 1984·10 cites·18 claims
Showing the top 50 of 149 patent records by PatentIndex Score.
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