Inventor · disambiguated record
Masaaki Sakaguchi
Also filed as: SAKAGUCHI MASAAKI
45 granted patents·246 citations·filing 1982–2019
98Inventor score
Files withFUJI PHOTO FILM CO LTD27ENDOH TOSHIHIDE9MITSUBISHI MATERIALS CORP3FUJI ELECTRIC CO LTD2MITSUBISHI HEAVY IND LTD2
Top patents by PatentIndex Score
45 records- 0178US5015430AMethod for manufacturing magnetic tapeFUJI PHOTO FILM CO LTD·Filed 1989·Granted May 14, 1991·21 cites·8 claims
- 0276US4789110AMethod and device for winding magnetic tape using magnetic alignmentFUJI PHOTO FILM CO LTD·Filed 1987·Granted Dec 6, 1988·20 cites·11 claims
- 0375US4478376AMethod of winding magnetic recording tapeFUJI PHOTO FILM CO LTD·Filed 1982·Granted Oct 23, 1984·18 cites·3 claims
- 0473US4679744AMagnetic tape winding method and systemFUJI PHOTO FILM CO LTD·Filed 1986·Granted Jul 14, 1987·18 cites·4 claims
- 0571US8703248B2Polycrystalline silicon reactorENDOH TOSHIHIDE·Filed 2009·Granted Apr 22, 2014·2 cites·5 claims
- 0670US8231724B2Reactor for polycrystalline silicon and polycrystalline silicon production methodENDOH TOSHIHIDE·Filed 2008·Granted Jul 31, 2012·2 cites·5 claims
- 0769US7875349B2Polymer inactivation method for polycrystalline silicon manufacturing deviceMITSUBISHI MATERIALS CORP·Filed 2009·Granted Jan 25, 2011·1 cites·6 claims
- 0867US8043660B2Method for manufacturing polycrystalline siliconMITSUBISHI MATERIALS CORP·Filed 2008·Granted Oct 25, 2011·1 cites·7 claims
- 0966US8187382B2Polycrystalline silicon manufacturing apparatusENDOH TOSHIHIDE·Filed 2009·Granted May 29, 2012·1 cites·6 claims
- 1065US4932600AMethod for winding magnetic tapeFUJI PHOTO FILM CO LTD·Filed 1989·Granted Jun 12, 1990·14 cites·9 claims
- 1164US7975709B2Reactor cleaning apparatusMITSUBISHI MATERIALS CORP·Filed 2009·Granted Jul 12, 2011·0 cites·4 claims
- 1263US5038030ASurface identification for back-coated magnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1989·Granted Aug 6, 1991·22 cites·6 claims
- 1360US8790429B2Reactor for polycrystalline silicon and polycrystalline silicon production methodENDOH TOSHIHIDE·Filed 2012·Granted Jul 29, 2014·1 cites·6 claims
- 1460US8329132B2Polycrystalline silicon manufacturing apparatus and manufacturing methodENDOH TOSHIHIDE·Filed 2008·Granted Dec 11, 2012·1 cites·13 claims
- 1559US4909455AMethod and device for winding magnetic tape using magnetic alignmentFUJI PHOTO FILM CO LTD·Filed 1989·Granted Mar 20, 1990·11 cites·15 claims
- 1658US8652256B2Manufacturing apparatus of polycrystalline siliconENDOH TOSHIHIDE·Filed 2009·Granted Feb 18, 2014·2 cites·4 claims
- 1758US6705979B1Method of and apparatus for machining web-shaped workpiece and apparatus for processing scrapFUJI PHOTO FILM CO LTD·Filed 1999·Granted Mar 16, 2004·10 cites·10 claims
- 1856US9216444B2Reactor cleaning apparatusENDOH TOSHIHIDE·Filed 2011·Granted Dec 22, 2015·0 cites·10 claims
- 1955US4842210AMethod and device for winding magnetic tape using magnetic alignmentFUJI PHOTO FILM CO LTD·Filed 1987·Granted Jun 27, 1989·9 cites·4 claims
- 2053US5754892ALens-fitted photo film unit with slot for checking shutter operationFUJI PHOTO FILM CO LTD·Filed 1996·Granted May 19, 1998·5 cites·5 claims
- 2149US6408133B1Finder system in photographing apparatusFUJI PHOTO FILM CO LTD·Filed 2000·Granted Jun 18, 2002·2 cites·11 claims
- 2249US5439712AMethod for making a composite aluminum articleMITSUBISHI HEAVY IND LTD·Filed 1994·Granted Aug 8, 1995·9 cites·16 claims
- 2349US4988204AJoint inspection apparatusFUJI PHOTO FILM CO LTD·Filed 1988·Granted Jan 29, 1991·7 cites·6 claims
- 2448US6080491ASubstrate for electrophotographic photoconductor and electrophotographic photoconductor using the sameFUJI ELECTRIC CO LTD·Filed 1998·Granted Jun 27, 2000·9 cites·21 claims
- 2545US6027436AMethod of and apparatus for machining web-shaped workpiece and apparatus for processing scrapFUJI PHOTO FILM CO LTD·Filed 1998·Granted Feb 22, 2000·9 cites·14 claims
- 2644US8623139B2Apparatus for producing polycrystalline siliconENDOH TOSHIHIDE·Filed 2009·Granted Jan 7, 2014·0 cites·15 claims
- 2743US4870291ASplice inspection method and apparatus using light inclined at a prescribed angleFUJI PHOTO FILM CO LTD·Filed 1989·Granted Sep 26, 1989·5 cites·16 claims
- 2841US11965902B2Automatic analysis deviceHITACHI HIGH TECH CORP·Filed 2019·Granted Apr 23, 2024·0 cites·7 claims
- 2941US6037089AElectrophotographic photoconductor and method for producing sameFUJI ELECTRIC CO LTD·Filed 1998·Granted Mar 14, 2000·6 cites·7 claims
- 3041US5419970AMethod for making a composite aluminum articleMITSUBISHI HEAVY IND LTD·Filed 1992·Granted May 30, 1995·6 cites·1 claims
- 3141US4863110AMagnetic tape winding method and apparatusFUJI PHOTO FILM CO LTD·Filed 1988·Granted Sep 5, 1989·5 cites·5 claims
- 3239US4844370AMethod and device for winding magnetic tape using magnetic alignmentFUJI PHOTO FILM CO LTD·Filed 1987·Granted Jul 4, 1989·4 cites·10 claims
- 3338US5261621AMethod and apparatus for evenly winding magnetic tapeFUJI PHOTO FILM CO LTD·Filed 1989·Granted Nov 16, 1993·4 cites·19 claims
- 3438US4783020AMagnetic tape winding device using magnetic edge alignmentFUJI PHOTO FILM CO LTD·Filed 1987·Granted Nov 8, 1988·3 cites·9 claims
- 3537US8840723B2Manufacturing apparatus of polycrystalline siliconENDOH TOSHIHIDE·Filed 2010·Granted Sep 23, 2014·0 cites·14 claims
- 3637US6723480B2Substrate for electrophotography photosensitive body, electrophotography photosensitive body, and electrophotography deviceFUJI ELECTRIC IMAGING DEVICE·Filed 2002·Granted Apr 20, 2004·1 cites·15 claims
- 3737US4838496AMagnetic tape loading method and apparatusFUJI PHOTO FILM CO LTD·Filed 1988·Granted Jun 13, 1989·5 cites·6 claims
- 3835US6286356B1Method of and apparatus for machining web-shaped workpiece and apparatus for processing scrapFUJI PHOTO FILM CO LTD·Filed 1999·Granted Sep 11, 2001·4 cites·11 claims
- 3934US4897540AApparatus for detecting the presence or absence of overlap at tape jointsFUJI PHOTO FILM CO LTD·Filed 1988·Granted Jan 30, 1990·4 cites·5 claims
- 4031US4817884AMethod and device for winding magnetic tape using magnetic alignmentFUJI PHOTO FILM CO LTD·Filed 1987·Granted Apr 4, 1989·1 cites·9 claims
- 4130US4867388AMagnetic tape winding deviceFUJI PHOTO FILM CO LTD·Filed 1987·Granted Sep 19, 1989·1 cites·9 claims
- 4230US4846420AMagnetic tape loading method and apparatusFUJI PHOTO FILM CO LTD·Filed 1988·Granted Jul 11, 1989·1 cites·7 claims
- 4330US4796824ADevice for winding magnetic tape using magnetic alignmentFUJI PHOTO FILM CO LTD·Filed 1987·Granted Jan 10, 1989·0 cites·5 claims
- 4429US4828197AMethod and device for winding magnetic tape using magnetic alignmentFUJI PHOTO FILM CO LTD·Filed 1987·Granted May 9, 1989·1 cites·5 claims
- 4529US4828196ADevice for winding magnetic tape using magnetic alignmentFUJI PHOTO FILM CO LTD·Filed 1987·Granted May 9, 1989·0 cites·1 claims
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