FUKUMA; Yasufumi
Patent Applications and Registrations
Patent applications and USPTO patent grants for FUKUMA; Yasufumi.The latest application filed is for "photogrammetry of building using machine learning based inference".
Company Profile
18.92.97
- FUKUMA; Yasufumi - Wako-shi JP
- Fukuma; Yasufumi - Wako JP
- Fukuma; Yasufumi - Tokyo JP
- Fukuma; Yasufumi - Saitama JP
- FUKUMA; Yasufumi - Itabashi-ku Tokyo
- Fukuma; Yasufumi - Fort Lee NJ
Patent Activity
| Patent | Date |
|---|---|
| Photogrammetry Of Building Using Machine Learning Based Inference App 20220254107 - FUKUMA; Yasufumi ; et al. | 2022-08-11 |
| Photogrammetry of building using machine learning based inference Grant 11,393,169 - Fukuma , et al. July 19, 2 | 2022-07-19 |
| Method of processing optical coherence tomography (OCT) data and OCT data processing apparatus Grant 11,375,892 - Tsukada , et al. July 5, 2 | 2022-07-05 |
| 3D quantitative analysis with deep learning Grant 11,302,006 - Mao , et al. April 12, 2 | 2022-04-12 |
| Ophthalmologic Microscope And Function Expansion Unit App 20220031159 - FUKUMA; Yasufumi ; et al. | 2022-02-03 |
| Method of optical coherence tomography (OCT) imaging, method of processing OCT data, and OCT apparatus Grant 11,229,355 - Tsukada , et al. January 25, 2 | 2022-01-25 |
| Ophthalmologic microscope and function expansion unit Grant 11,166,631 - Fukuma , et al. November 9, 2 | 2021-11-09 |
| Ophthalmic Apparatus App 20210338076 - NAKAJIMA; Masashi ; et al. | 2021-11-04 |
| Photogrammetry Of Building Using Machine Learning Based Inference App 20210279960 - FUKUMA; Yasufumi ; et al. | 2021-09-09 |
| System For Building Photogrammetry App 20210256679 - FUKUMA; Yasufumi ; et al. | 2021-08-19 |
| Ophthalmic System, Ophthalmic Information Processing Device, And Ophthalmic Diagnosing Method App 20210153735 - TSUKADA; Hisashi ; et al. | 2021-05-27 |
| Slit Lamp Microscope And Ophthalmic System App 20210153740 - OOMORI; Kazuhiro ; et al. | 2021-05-27 |
| Ophthalmologic apparatus Grant 11,013,401 - Fukuma , et al. May 25, 2 | 2021-05-25 |
| Microscope and Function Expansion Unit App 20210113081 - FUKUMA; Yasufumi ; et al. | 2021-04-22 |
| 3d Quantitative Analysis With Deep Learning App 20210082116 - Mao; Zaixing ; et al. | 2021-03-18 |
| Ophthalmic Microscope App 20210068654 - FUKUMA; Yasufumi ; et al. | 2021-03-11 |
| Slit-lamp Microscope And Ophthalmic System App 20210038076 - OHMORI; Kazuhiro ; et al. | 2021-02-11 |
| Ophthalmologic apparatus Grant 10,905,325 - Fukuma , et al. February 2, 2 | 2021-02-02 |
| Slit-lamp Microscope And Ophthalmic System App 20210015363 - OHMORI; Kazuhiro ; et al. | 2021-01-21 |
| Method Of Processing Optical Coherence Tomography (oct) Data, Method Of Oct Imaging, And Oct Data Processing Apparatus App 20210004971 - FUKUMA; Yasufumi ; et al. | 2021-01-07 |
| Method Of Processing Optical Coherence Tomography (oct) Data And Oct Data Processing Apparatus App 20210000338 - TSUKADA; Hisashi ; et al. | 2021-01-07 |
| Method Of Optical Coherence Tomography (oct) Imaging, Method Of Processing Oct Data, And Oct Apparatus App 20210003383 - TSUKADA; Hisashi ; et al. | 2021-01-07 |
| Ophthalmic system, ophthalmic information processing apparatus, and ophthalmic information processing method Grant 10,881,295 - Tsukada , et al. January 5, 2 | 2021-01-05 |
| 3D quantitative analysis of retinal layers with deep learning Grant 10,878,574 - Mao , et al. December 29, 2 | 2020-12-29 |
| Ophthalmic System, Ophthalmic Information Processing Apparatus, And Recording Medium App 20200390330 - FUKUMA; Yasufumi ; et al. | 2020-12-17 |
| Patient management system and patient management server Grant 10,820,803 - Fukuma , et al. November 3, 2 | 2020-11-03 |
| Ophthalmologic apparatus Grant 10,743,762 - Shimizu , et al. A | 2020-08-18 |
| Ophthalmic Microscope and Functionality Enhancement Unit App 20200214555 - FUKUMA; Yasufumi ; et al. | 2020-07-09 |
| Ophthalmologic Apparatus App 20200163545 - Fukuma; Yasufumi ; et al. | 2020-05-28 |
| Ophthalmologic Apparatus App 20200163548 - Fukuma; Yasufumi ; et al. | 2020-05-28 |
| Ophthalmologic Apparatus App 20200100673 - SHIMIZU; Hitoshi ; et al. | 2020-04-02 |
| Ophthalmic Apparatus, Controlling Method Thereof, And Recording Medium App 20200085292 - FUKUMA; Yasufumi ; et al. | 2020-03-19 |
| Ophthalmologic Microscope And Function Expansion Unit App 20200077889 - FUKUMA; Yasufumi ; et al. | 2020-03-12 |
| Ophthalmic microscope system Grant 10,456,034 - Fukuma , et al. Oc | 2019-10-29 |
| 3d Quantitative Analysis Of Retinal Layers With Deep Learning App 20190259163 - Mao; Zaixing ; et al. | 2019-08-22 |
| Ophthalmic System, Ophthalmic Information Processing Apparatus, And Ophthalmic Information Processing Method App 20190029514 - TSUKADA; Hisashi ; et al. | 2019-01-31 |
| Intraocular lens system Grant 9,962,257 - Fukuma , et al. May 8, 2 | 2018-05-08 |
| Image displaying apparatus Grant 9,936,870 - Yoshida , et al. April 10, 2 | 2018-04-10 |
| Ocular Function Assistance Device App 20180085212 - MIHASHI; Toshifumi ; et al. | 2018-03-29 |
| Image displaying method Grant 9,848,772 - Yoshida , et al. December 26, 2 | 2017-12-26 |
| Retinal prosthesis system Grant 9,789,312 - Fukuma , et al. October 17, 2 | 2017-10-17 |
| Fundus photographing apparatus Grant 9,782,070 - Utsunomiya , et al. October 10, 2 | 2017-10-10 |
| Ophthalmologic imaging apparatus for stimulated eye Grant 9,717,408 - Akiba , et al. August 1, 2 | 2017-08-01 |
| Ophthalmic microscope Grant 9,662,013 - Fukuma , et al. May 30, 2 | 2017-05-30 |
| Ophthalmologic apparatus Grant 9,526,415 - Fukuma , et al. December 27, 2 | 2016-12-27 |
| Optical image measuring apparatus, image displaying apparatus and image displaying method Grant 9,492,082 - Yoshida , et al. November 15, 2 | 2016-11-15 |
| Image Displaying Method App 20160310024 - Yoshida; Akitoshi ; et al. | 2016-10-27 |
| Image Displaying Apparatus App 20160302738 - Yoshida; Akitoshi ; et al. | 2016-10-20 |
| Ophthalmic Microscope App 20160278636 - FUKUMA; Yasufumi ; et al. | 2016-09-29 |
| Ophthalmic Microscope System App 20160278635 - FUKUMA; Yasufumi ; et al. | 2016-09-29 |
| Intraocular Lens System App 20160213464 - FUKUMA; Yasufumi ; et al. | 2016-07-28 |
| Retinal Prosthesis System App 20160213926 - FUKUMA; Yasufumi ; et al. | 2016-07-28 |
| Ophthalmologic apparatus Grant 9,380,937 - Fukuma , et al. July 5, 2 | 2016-07-05 |
| Patient Management System And Patient Management Server App 20160183796 - FUKUMA; Yasufumi ; et al. | 2016-06-30 |
| Ophthalmologic apparatus Grant 9,370,301 - Fukuma , et al. June 21, 2 | 2016-06-21 |
| Fundus Photographing Apparatus App 20160113488 - UTSUNOMIYA; Atsushi ; et al. | 2016-04-28 |
| Ophthalmologic apparatus Grant 9,295,387 - Fukuma , et al. March 29, 2 | 2016-03-29 |
| Ophthalmologic apparatus Grant 9,295,386 - Fukuma , et al. March 29, 2 | 2016-03-29 |
| Ophthalmologic Imaging Apparatus App 20150320308 - AKIBA; Masahiro ; et al. | 2015-11-12 |
| Optical image measurement apparatus Grant 8,970,848 - Fukuma , et al. March 3, 2 | 2015-03-03 |
| Ophthalmologic Apparatus App 20140320810 - FUKUMA; Yasufumi ; et al. | 2014-10-30 |
| Ophthalmologic Apparatus App 20140320809 - FUKUMA; Yasufumi ; et al. | 2014-10-30 |
| Ophthalmologic Apparatus App 20140300863 - FUKUMA; Yasufumi ; et al. | 2014-10-09 |
| Ophthalmologic Apparatus App 20140300866 - FUKUMA; Yasufumi ; et al. | 2014-10-09 |
| Ophthalmologic Apparatus App 20140300864 - FUKUMA; Yasufumi ; et al. | 2014-10-09 |
| Optical image measurement device including an interference light generator Grant 8,488,126 - Chan , et al. July 16, 2 | 2013-07-16 |
| Optical image measurement device and image processing device Grant 8,348,426 - Tsukada , et al. January 8, 2 | 2013-01-08 |
| Optical Image Measurement Apparatus App 20120113431 - Fukuma; Yasufumi ; et al. | 2012-05-10 |
| Optical image measuring apparatus Grant 8,009,297 - Chan , et al. August 30, 2 | 2011-08-30 |
| Fundus oculi observation device and ophthalmic image display device Grant 7,980,697 - Tsukada , et al. July 19, 2 | 2011-07-19 |
| Optical image measurement device Grant 7,982,880 - Kikawa , et al. July 19, 2 | 2011-07-19 |
| Optical image measurement device Grant 7,952,722 - Chan , et al. May 31, 2 | 2011-05-31 |
| Fundus observation device and a program controlling the same Grant 7,905,597 - Tsukada , et al. March 15, 2 | 2011-03-15 |
| Fundus observation device, an ophthalmologic image processing unit, an ophthalmologic image processing program, and an ophthalmologic image processing method Grant 7,905,596 - Aoki , et al. March 15, 2 | 2011-03-15 |
| Optical image-measuring device Grant 7,837,328 - Fukuma , et al. November 23, 2 | 2010-11-23 |
| Fundus oculi observation device and fundus oculi image processing device Grant 7,828,437 - Kikawa , et al. November 9, 2 | 2010-11-09 |
| Fundus oculi observation device and fundus oculi image display device Grant 7,794,083 - Tsukada , et al. September 14, 2 | 2010-09-14 |
| Eye movement measuring apparatus, eye movement measuring method and recording medium Grant 7,789,511 - Aoki , et al. September 7, 2 | 2010-09-07 |
| Fundus observation device Grant 7,784,941 - Fukuma , et al. August 31, 2 | 2010-08-31 |
| Optical image measurement device Grant 7,777,893 - Kikawa , et al. August 17, 2 | 2010-08-17 |
| Optical image measurement device App 20100188502 - Kikawa; Tsutomu ; et al. | 2010-07-29 |
| Optical image measuring device, optical image measuring program, fundus observation device, and fundus observation program Grant 7,756,311 - Yasuno , et al. July 13, 2 | 2010-07-13 |
| Optical Image Measuring Device, Optical Image Measuring Program, Fundus Observation Device, And Fundus Observation Program App 20100142780 - Yasuno; Yoshiaki ; et al. | 2010-06-10 |
| Optical Image Measuring Device App 20100134802 - Chan; Kinpui ; et al. | 2010-06-03 |
| Fundus observation device Grant 7,641,338 - Fukuma , et al. January 5, 2 | 2010-01-05 |
| Optical image measurement device Grant 7,643,154 - Kikawa , et al. January 5, 2 | 2010-01-05 |
| Optical image measurement device and optical image measurement method Grant 7,604,351 - Fukuma , et al. October 20, 2 | 2009-10-20 |
| Fundus Oculi Observation Device And Ophthalmic Image Display Device App 20090190092 - Tsukada; Hisashi ; et al. | 2009-07-30 |
| Fundus observation device, fundus image display device and fundus observation program Grant 7,566,128 - Tsukada , et al. July 28, 2 | 2009-07-28 |
| Fundus observation device Grant 7,566,132 - Fukuma , et al. July 28, 2 | 2009-07-28 |
| Fundus observation device Grant 7,549,746 - Tsukada , et al. June 23, 2 | 2009-06-23 |
| Optical Image Measuring Apparatus App 20090153873 - Chan; Kinpui ; et al. | 2009-06-18 |
| Optical Image Measurement Device App 20090153876 - Chan; Kinpui ; et al. | 2009-06-18 |
| Optical image measuring apparatus Grant 7,548,320 - Chan , et al. June 16, 2 | 2009-06-16 |
| Fundus observation device Grant 7,527,378 - Fukuma , et al. May 5, 2 | 2009-05-05 |
| Optical image measuring apparatus and optical image measuring method Grant 7,492,466 - Chan , et al. February 17, 2 | 2009-02-17 |
| Fundus observation device Grant 7,458,684 - Fukuma , et al. December 2, 2 | 2008-12-02 |
| Eye Movement Measuring Apparatus, Eye Movement Measuring Method And Recording Medium App 20080259275 - AOKI; Hiroyuki ; et al. | 2008-10-23 |
| Optical Image Measurement Device And Optical Image Measurement Method App 20080239238 - FUKUMA; Yasufumi ; et al. | 2008-10-02 |
| Optical Image Measurement Device And Image Processing Device App 20080234972 - TSUKADA; Hisashi ; et al. | 2008-09-25 |
| Fundus Oculi Observation Device And Fundus Oculi Image Processing Device App 20080204655 - KIKAWA; Tsutomu ; et al. | 2008-08-28 |
| Optical Image Measurement Device App 20080151260 - KIKAWA; Tsutomu ; et al. | 2008-06-26 |
| Fundus Oculi Observation Device And Fundus Oculi Image Display Device App 20080151187 - TSUKADA; Hisashi ; et al. | 2008-06-26 |
| Optical Image Measurement Device App 20080151256 - KIKAWA; Tsutomu ; et al. | 2008-06-26 |
| Opthalmologic apparatus Grant 7,370,966 - Fukuma , et al. May 13, 2 | 2008-05-13 |
| Optical image measuring apparatus Grant 7,372,578 - Akiba , et al. May 13, 2 | 2008-05-13 |
| Fundus examination apparatus Grant 7,360,897 - Kikuta , et al. April 22, 2 | 2008-04-22 |
| Observation apparatus Grant 7,344,246 - Noda , et al. March 18, 2 | 2008-03-18 |
| Optical image measuring apparatus and optical image measuring method for forming a velocity distribution image expressing a moving velocity distribution of the moving matter Grant 7,345,770 - Chan , et al. March 18, 2 | 2008-03-18 |
| Ophthalmologic apparatus and ophthalmologic chart Grant 7,341,349 - Fukuma , et al. March 11, 2 | 2008-03-11 |
| Fundus Observation Device And A Program Controlling The Same App 20080030680 - Tsukada; Hisashi ; et al. | 2008-02-07 |
| Fundus Observation Device, An Ophthalmologic Image Processing Unit, An Ophthalmologic Image Processing Program, And An Ophthalmologic Image Processing Method App 20070285619 - Aoki; Hiroyuki ; et al. | 2007-12-13 |
| Eye test service system Grant 7,292,713 - Fukuma , et al. November 6, 2 | 2007-11-06 |
| Opthalmologic Apparatus App 20070236661 - Fukuma; Yasufumi ; et al. | 2007-10-11 |
| Fundus Observation Device App 20070236660 - Fukuma; Yasufumi ; et al. | 2007-10-11 |
| Optometric device Grant 7,275,823 - Fukuma , et al. October 2, 2 | 2007-10-02 |
| Fundus Observation Device App 20070222946 - Fukuma; Yasufumi ; et al. | 2007-09-27 |
| Fundus Observation Device App 20070222945 - Tsukada; Hisashi ; et al. | 2007-09-27 |
| Sale system of optical characteristic image data App 20070226076 - Fukuma; Yasufumi ; et al. | 2007-09-27 |
| Service system for selecting personal goods to wear or carry, and program product therefor Grant 7,274,806 - Fukuma , et al. September 25, 2 | 2007-09-25 |
| Optical image measuring apparatus for forming an image of an object to be measured based on interference light Grant 7,268,885 - Chan , et al. September 11, 2 | 2007-09-11 |
| Eye fundus photographing system Grant 7,258,442 - Noda , et al. August 21, 2 | 2007-08-21 |
| Fundus Observation Device App 20070188704 - Fukuma; Yasufumi ; et al. | 2007-08-16 |
| Optical image measuring apparatus Grant 7,248,371 - Chan , et al. July 24, 2 | 2007-07-24 |
| Optical image measuring apparatus for obtaining a signal intensity and spatial phase distribution of interference light Grant 7,245,383 - Chan , et al. July 17, 2 | 2007-07-17 |
| Eye's optical characteristics measuring system Grant 7,244,025 - Nishio , et al. July 17, 2 | 2007-07-17 |
| Fundus Observation Device App 20070159595 - Fukuma; Yasufumi ; et al. | 2007-07-12 |
| Fundus Observation Device App 20070159596 - FUKUMA; Yasufumi ; et al. | 2007-07-12 |
| Optical Image-Measuring Device App 20070159597 - Fukuma; Yasufumi ; et al. | 2007-07-12 |
| Optical image transmitting system, optical image transmitting apparatus, optical image receiving apparatus, and optical image transmitting method Grant 7,241,982 - Chan , et al. July 10, 2 | 2007-07-10 |
| Fundus observation device, fundus image display device and fundus observation program App 20070070295 - Tsukada; Hisashi ; et al. | 2007-03-29 |
| Subjective optometric apparatus Grant 7,159,984 - Fukuma , et al. January 9, 2 | 2007-01-09 |
| Apparatus for simulating processing of eyeglass lenses Grant 7,152,976 - Fukuma , et al. December 26, 2 | 2006-12-26 |
| Eye's optical characteristics measuring system App 20060256286 - Nishio; Kouji ; et al. | 2006-11-16 |
| Lens meter Grant 7,088,439 - Fukuma , et al. August 8, 2 | 2006-08-08 |
| Fundus examination apparatus App 20060164598 - Kikuta; Hisao ; et al. | 2006-07-27 |
| Eye fundus photographing system App 20060139572 - Noda; Toru ; et al. | 2006-06-29 |
| Service system for selecting personal goods to wear or carry, and program product therefor App 20060104478 - Fukuma; Yasufumi ; et al. | 2006-05-18 |
| Optical image measuring apparatus and optical image measuring method App 20060100528 - Chan; Kinpui ; et al. | 2006-05-11 |
| Eye test service system App 20060100938 - Fukuma; Yasufumi ; et al. | 2006-05-11 |
| Optical image measuring apparatus and optical image measuring method App 20060077395 - Chan; Kinpui ; et al. | 2006-04-13 |
| Optical image measuring apparatus App 20060055939 - Akiba; Masahiro ; et al. | 2006-03-16 |
| Database constructing system Grant 7,010,146 - Fukuma , et al. March 7, 2 | 2006-03-07 |
| Lens meter App 20060001862 - Fukuma; Yasufumi ; et al. | 2006-01-05 |
| Optical image transmitting system, optical image transmitting apparatus, optical image receiving apparatus, and optical image transmitting method App 20050219469 - Chan, Kinpui ; et al. | 2005-10-06 |
| Optical image measuring apparatus App 20050219545 - Chan, Kinpui ; et al. | 2005-10-06 |
| Optical image measuring apparatus App 20050219544 - Chan, Kinpui ; et al. | 2005-10-06 |
| Lens meter Grant 6,950,180 - Fukuma , et al. September 27, 2 | 2005-09-27 |
| Optical image measuring apparatus App 20050206906 - Chan, Kinpui ; et al. | 2005-09-22 |
| Optical image measuring apparatus App 20050190374 - Chan, Kinpui ; et al. | 2005-09-01 |
| Method for measuring refractive power and apparatus therefor Grant 6,937,328 - Fukuma , et al. August 30, 2 | 2005-08-30 |
| Optometric device App 20050018132 - Fukuma, Yasufumi ; et al. | 2005-01-27 |
| Observation apparatus App 20050018134 - Noda, Toru ; et al. | 2005-01-27 |
| Ophthalmologic apparatus and ophthalmologic chart App 20050012896 - Fukuma, Yasufumi ; et al. | 2005-01-20 |
| Apparatus for measuring refractive power Grant 6,844,925 - Fukuma , et al. January 18, 2 | 2005-01-18 |
| Lens meter App 20040227933 - Fukuma, Yasufumi ; et al. | 2004-11-18 |
| Apparatus for measurement of polarized distribution, polarizing filter for using therein and polarizing filter assembly Grant 6,814,441 - Ohnuma , et al. November 9, 2 | 2004-11-09 |
| Lens meter Grant 6,778,264 - Fukuma , et al. August 17, 2 | 2004-08-17 |
| Optometry apparatus and diffraction grating plate used in the same Grant 6,749,303 - Fukuma , et al. June 15, 2 | 2004-06-15 |
| Apparatus for simulating processing of eyeglass lenses App 20040085516 - Fukuma, Yasufumi ; et al. | 2004-05-06 |
| Observation apparatus Grant 6,726,326 - Fukuma , et al. April 27, 2 | 2004-04-27 |
| Subjective optometric apparatus App 20040032568 - Fukuma, Yasufumi ; et al. | 2004-02-19 |
| Subjective optometric apparatus App 20040032567 - Fukuma, Yasufumi ; et al. | 2004-02-19 |
| Eyeglass frame selecting system Grant 6,634,754 - Fukuma , et al. October 21, 2 | 2003-10-21 |
| Eye characteristic measuring apparatus Grant 6,629,761 - Hirohara , et al. October 7, 2 | 2003-10-07 |
| Slit lamp microscope App 20030184711 - Abe, Tomoyoshi ; et al. | 2003-10-02 |
| Observation apparatus App 20030128333 - Fukuma, Yasufumi ; et al. | 2003-07-10 |
| Apparatus for measurement of polarized distribution, polarizing filter for using therein and polarizing filter assembly App 20030095233 - Ohnuma, Kazuhiko ; et al. | 2003-05-22 |
| Optical characteristic measuring apparatus Grant 6,540,692 - Mihashi , et al. April 1, 2 | 2003-04-01 |
| Apparatus for measuring refractive power App 20020154292 - Fukuma, Yasufumi ; et al. | 2002-10-24 |
| Method for measuring refractive power and apparatus therefor App 20020149745 - Fukuma, Yasufumi ; et al. | 2002-10-17 |
| Method for measuring an optical characteristic of lenses in eyeglasses with frames, a measuring instrument for executing it and collecting and sale systems of optical characteristic image data App 20020113940 - Fukuma, Yasufumi ; et al. | 2002-08-22 |
| Lens meter App 20020085196 - Fukuma, Yasufumi ; et al. | 2002-07-04 |
| Database constructing system, eyeglass frame selecting service system, eye test service system, and program product thereof App 20010051953 - Fukuma, Yasufumi ; et al. | 2001-12-13 |
| Eyeglass frame selecting system App 20010022649 - Fukuma, Yasufumi ; et al. | 2001-09-20 |
| Eyeglass frame synthesizing system and eyeglass frame selling method App 20010023413 - Fukuma, Yasufumi ; et al. | 2001-09-20 |
| Optical characteristic measuring apparatus App 20010016695 - Mihashi, Toshifumi ; et al. | 2001-08-23 |
| Lens meter Grant 6,236,453 - Ikezawa , et al. May 22, 2 | 2001-05-22 |
| Optical characteristic measuring apparatus Grant 6,234,978 - Mihashi , et al. May 22, 2 | 2001-05-22 |
| Lens meter Grant 6,061,123 - Ikezawa , et al. May 9, 2 | 2000-05-09 |
| Layout judgment apparatus and layout judgment system Grant 5,973,772 - Fukuma , et al. October 26, 1 | 1999-10-26 |
| Refractometer with deflecting element Grant 5,886,780 - Fukuma , et al. March 23, 1 | 1999-03-23 |
| Ocular refracting power measuring system Grant 5,071,245 - Fukuma , et al. December 10, 1 | 1991-12-10 |
| Eye testing apparatus Grant 4,859,051 - Fukuma , et al. August 22, 1 | 1989-08-22 |
| Opthalmological measuring apparatus Grant 4,796,989 - Fukuma , et al. January 10, 1 | 1989-01-10 |
| Eye refractometer Grant 4,761,070 - Fukuma August 2, 1 | 1988-08-02 |
| Eye refractive power measuring apparatus Grant 4,744,648 - Kato , et al. May 17, 1 | 1988-05-17 |
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