Inventor
WATANABE TOSHIO
JP217 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
16 patentsUS5764613AJun 9, 1998
optical pickup apparatus
SONY CORP117 citations98
US6097688AAug 1, 2000
Recording/reproducing apparatus and recording/reproducing method for optical recording media
SONY CORP55 citations96
US5881034AMar 9, 1999
Apparatus for driving objective lens
SONY CORP90 citations96
US5841513ANov 24, 1998
Apparatus for reproducing sound signals recorded on a motion picture film with digital sound track
SONY CORP68 citations96
US6414931B1Jul 2, 2002
Lens driving device, optical head and optical disc system
SONY CORP26 citations93
US6292453B1Sep 18, 2001
Optical disc recording/reproduction apparatus having a lens group, focus, servo, and jog mode adjustment
SONY CORP37 citations93
US6115347ASep 5, 2000
Optical pick-up device, optical recording/reproducing apparatus and objective lens
SONY CORP28 citations93
US6084603AJul 4, 2000
Optical information medium and method for printing on the surface of the medium
SONY CORP22 citations93
US6058095AMay 2, 2000
Objective lens having a doublet lens with high numerical aperture
SONY CORP21 citations93
US6041031AMar 21, 2000
Optical disc recording/reproduction apparatus and method
SONY CORP24 citations93
US6005834ADec 21, 1999
Optical recording medium recording and reproducing apparatus and optical pickup device
SONY CORP30 citations93
US5920329AJul 6, 1999
Optical information medium and method for printing on the surface of the medium
SONY CORP23 citations93
US5712842AJan 27, 1998
Optical pick-up device
SONY CORP55 citations93
US7550707B2Jun 23, 2009
Biometrics authentication system with authentication based upon multiple layers
SONY CORP43 citations92
US6570827B1May 27, 2003
Optical element for correction of chromatic aberration, optical pick-up device having optical element for correction of chromatic aberration, optical reproducing device having optical pick-up device and optical recording and reproducing device
SONY CORP21 citations92
US6564009B2May 13, 2003
Apparatus for recording and/or reproducing data onto and/or from an optical disk and method thereof
SONY CORP52 citations92
SEMICONDUCTOR ENERGY LAB
5 patentsUS5952676ASep 14, 1999
Liquid crystal device and method for manufacturing same with spacers formed by photolithography
SEMICONDUCTOR ENERGY LAB366 citations98
US5379139AJan 3, 1995
Liquid crystal device and method for manufacturing same with spacers formed by photolithography
SEMICONDUCTOR ENERGY LAB477 citations98
US5963288AOct 5, 1999
Liquid crystal device having sealant and spacers made from the same material
SEMICONDUCTOR ENERGY LAB42 citations95
US4874461AOct 17, 1989
Method for manufacturing liquid crystal device with spacers formed by photolithography
SEMICONDUCTOR ENERGY LAB112 citations95
US6493057B1Dec 10, 2002
Liquid crystal device and method for manufacturing same with spacers formed by photolithography
SEMICONDUCTOR ENERGY LAB14 citations92
NEC CORP
4 patentsUS6278318B1Aug 21, 2001
Booster circuit associated with low-voltage power source
NEC CORP48 citations93
US5870295AFeb 9, 1999
Simple charge-pump circuit with variable conduction path for changing boosting ratio and step-up circuit using the same
NEC CORP46 citations93
US5691557ANov 25, 1997
Semiconductor circuit having input protective circuit
NEC CORP31 citations93
US7095991B2Aug 22, 2006
Power saving driving method of mobile telephone
NEC CORP15 citations92
MITA INDUSTRIAL CO LTD
3 patentsUS5539539AJul 23, 1996
Color converting circuit for use in an image forming apparatus
MITA INDUSTRIAL CO LTD51 citations92
US4521102AJun 4, 1985
Copy paper counting method and device for copying apparatus
MITA INDUSTRIAL CO LTD27 citations92
US4484734ANov 27, 1984
Copy paper feeding device for a copying apparatus
MITA INDUSTRIAL CO LTD29 citations92
NIPPON TELEGRAPH & TELEPHONE
2 patentsCANON KK
2 patentsFUJI XEROX CO LTD
2 patentsUS7439863B2Oct 21, 2008
RFID relay antenna, RFID system, container, disposition method, communication confirmation method, and package construction
FUJI XEROX CO LTD20 citations93
US7388492B2Jun 17, 2008
Pallet recycling system, radio tag, pallet, and management method and program
FUJI XEROX CO LTD29 citations93
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
2 patentsWADA PURE CHEMICAL IND
1 patentNORITZ CORP
1 patentSYSMEX CORP
1 patentKAWABATA YUSAKU
1 patentKAWASAKI STEEL CO
1 patentWACO PURE CHEMICAL INC
1 patentROHM CO LTD
1 patentHITACHI LTD
1 patentSEIKO INSTR INC
1 patentTORAY SILICONE CO
1 patentRANK XEROX LTD
1 patentFUJITA TOSHIYUKI
1 patentSHARP KK
1 patentTDK CORP
1 patentShowing the top 50 of 217 patents by PatentIndex Score.