Inventor · disambiguated record
Ryoichi Yoshikawa
Also filed as: TEZUKA NOBUO · YOSHIKAWA RYOICHI
43 granted patents·1 pending application·439 citations·filing 1975–2019
98Inventor score
Files withNUFLARE TECHNOLOGY INC17CANON KK15TOKYO SHIBAURA ELECTRIC CO4TOSHIBA KK4YOSHIKAWA RYOICHI2
Top patents by PatentIndex Score
44 records- 0192US8710467B2Multi charged particle beam writing apparatus and multi charged particle beam writing methodYOSHIKAWA RYOICHI·Filed 2012·Granted Apr 29, 2014·13 cites·10 claims
- 0288US8586951B2Multi charged particle beam writing apparatus and multi charged particle beam writing methodYOSHIKAWA RYOICHI·Filed 2012·Granted Nov 19, 2013·10 cites·16 claims
- 0386US9287090B2Multi charged particle beam writing apparatus, and multi charged particle beam writing methodNUFLARE TECHNOLOGY INC·Filed 2014·Granted Mar 15, 2016·6 cites·11 claims
- 0486US4114173APhotographic camera with an operation mode display deviceCANON KK·Filed 1977·Granted Sep 12, 1978·13 cites·6 claims
- 0585US9202673B2Multi charged particle beam writing method and multi charged particle beam writing apparatusNUFLARE TECHNOLOGY INC·Filed 2013·Granted Dec 1, 2015·4 cites·2 claims
- 0685US4067032AStructure of camera bodyCANON KK·Filed 1975·Granted Jan 3, 1978·16 cites·3 claims
- 0784US8729507B2Multi charged particle beam writing method and multi charged particle beam writing apparatusNUFLARE TECHNOLOGY INC·Filed 2013·Granted May 20, 2014·5 cites·10 claims
- 0880US9343268B2Multi charged particle beam writing apparatus and multi charged particle beam writing methodNUFLARE TECHNOLOGY INC·Filed 2014·Granted May 17, 2016·3 cites·8 claims
- 0980US8907306B2Multi charged particle beam writing apparatus and multi charged particle beam writing methodNUFLARE TECHNOLOGY INC·Filed 2014·Granted Dec 9, 2014·3 cites·7 claims
- 1077US5185812AOptical pattern inspection systemTOSHIBA KK·Filed 1991·Granted Feb 9, 1993·92 cites·10 claims
- 1176US4559603AApparatus for inspecting a circuit pattern drawn on a photomask used in manufacturing large scale integrated circuitsTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Dec 17, 1985·42 cites·11 claims
- 1275US4623256AApparatus for inspecting mask used for manufacturing integrated circuitsTOSHIBA KK·Filed 1984·Granted Nov 18, 1986·41 cites·4 claims
- 1374US8741547B2Multi charged particle beam writing apparatus and multi charged particle beam writing methodNUFLARE TECHNOLOGY INC·Filed 2012·Granted Jun 3, 2014·2 cites·4 claims
- 1472US4522479AFlash apparatus with power supply control deviceCANON KK·Filed 1983·Granted Jun 11, 1985·10 cites·20 claims
- 1571US7878060B2Motion sensor and method of manufacturing the sameSONY CORP·Filed 2007·Granted Feb 1, 2011·6 cites·3 claims
- 1670USRE47561EMulti charged particle beam writing method and multi charged particle beam writing apparatusNUFLARE TECHNOLOGY INC·Filed 2016·Granted Aug 6, 2019·1 cites·18 claims
- 1770US9076564B2Multi charged particle beam writing apparatus and multi charged particle beam writing methodNUFLARE TECHNOLOGY INC·Filed 2014·Granted Jul 7, 2015·2 cites·11 claims
- 1870US5760410AElectron beam lithography apparatus and methodTOSHIBA KK·Filed 1997·Granted Jun 2, 1998·22 cites·38 claims
- 1970US4389111ACameraCANON KK·Filed 1981·Granted Jun 21, 1983·9 cites·7 claims
- 2069US5404410AMethod and system for generating a bit patternTOSHIBA KK·Filed 1994·Granted Apr 4, 1995·38 cites·5 claims
- 2168US9934935B2Multi charged particle beam writing apparatus and multi charged particle beam writing methodNUFLARE TECHNOLOGY INC·Filed 2016·Granted Apr 3, 2018·1 cites·10 claims
- 2266US4279494ACamera bodyCANON KK·Filed 1979·Granted Jul 21, 1981·8 cites·6 claims
- 2364US9691585B2Multi charged particle beam writing method, and multi charged particle beam writing apparatusNUFLARE TECHNOLOGY INC·Filed 2015·Granted Jun 27, 2017·1 cites·12 claims
- 2462US2018261421A1Multi charged particle beam writing method and multi charged particle beam writing apparatusNUFLARE TECHNOLOGY INC·Filed 2018·Application pending·0 cites
- 2561US10020159B2Multi charged particle beam writing method and multi charged particle beam writing apparatusNUFLARE TECHNOLOGY INC·Filed 2016·Granted Jul 10, 2018·0 cites·3 claims
- 2658US9570267B2Multi charged particle beam writing method and multi charged particle beam writing apparatusNUFLARE TECHNOLOGY INC·Filed 2015·Granted Feb 14, 2017·0 cites·2 claims
- 2755US4400073ASafety device for a camera with a winding motorCANON KK·Filed 1981·Granted Aug 23, 1983·5 cites·8 claims
- 2855US4322148AInformation indicating device for single lens reflex camera with built-in flash unitCANON KK·Filed 1980·Granted Mar 30, 1982·5 cites·9 claims
- 2954US4656466AElectro-optic display deviceCANON KK·Filed 1985·Granted Apr 7, 1987·16 cites·14 claims
- 3052US4647782ACharged particle beam exposure apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1985·Granted Mar 3, 1987·19 cites·8 claims
- 3151US12490529B2Solid-state imaging device and electronic apparatus having a storage capacitor with a thin insulating filmSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2019·Granted Dec 2, 2025·0 cites·22 claims
- 3251US4542974AFlash photography apparatusCANON KK·Filed 1984·Granted Sep 24, 1985·4 cites·7 claims
- 3351US4466719AWind-up device for cameraCANON KK·Filed 1983·Granted Aug 21, 1984·4 cites·8 claims
- 3451US4361391AFilm magazine holding device for cameraCANON KK·Filed 1981·Granted Nov 30, 1982·4 cites·5 claims
- 3551US4238151APentaprism mount assemblyCANON KK·Filed 1979·Granted Dec 9, 1980·3 cites·5 claims
- 3648US4558225ATarget body position measuring method for charged particle beam fine pattern exposure systemTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Dec 10, 1985·15 cites·10 claims
- 3748US4181417AShutter operation control device for a photographic cameraCANON KK·Filed 1978·Granted Jan 1, 1980·3 cites·14 claims
- 3846US10796882B2Charged particle beam writing apparatus and charged particle beam writing methodNUFLARE TECHNOLOGY INC·Filed 2019·Granted Oct 6, 2020·0 cites·19 claims
- 3946US10784080B2Multiple charged particle beam writing apparatus, and multiple charged particle beam writing methodNUFLARE TECHNOLOGY INC·Filed 2019·Granted Sep 22, 2020·0 cites·14 claims
- 4043US4410800AElectron beam exposure systemTOKYO SHIBAURA ELECTRIC CO·Filed 1981·Granted Oct 18, 1983·11 cites·8 claims
- 4141US4410252ASingle lens reflex cameraCANON KK·Filed 1981·Granted Oct 18, 1983·2 cites·5 claims
- 4237US9805905B2Blanking device for multi-beam of charged particle writing apparatus using multi-beam of charged particle and defective beam blocking method for multi-beam of charged particleNUFLARE TECHNOLOGY INC·Filed 2015·Granted Oct 31, 2017·0 cites·10 claims
- 4335US9530610B2Blanking aperture array device for multi-beams, and fabrication method of blanking aperture array device for multi-beamsNUFLARE TECHNOLOGY INC·Filed 2015·Granted Dec 27, 2016·0 cites·3 claims
- 4434US4306784APhotographic camera with an operation mode display deviceCANON KK·Filed 1979·Granted Dec 22, 1981·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →