Inventor · disambiguated record
Yasushi Shimizu
Also filed as: SHIMIZU YASUSHI
124 granted patents·14 pending applications·2,333 citations·filing 1980–2025
99Inventor score
Top patents by PatentIndex Score
138 records- 0198US5488459AImage bearing member having an asymmetrically weighted base, process cartridge and image forming apparatusCANON KK·Filed 1993·Granted Jan 30, 1996·113 cites·33 claims
- 0297US5926672APhotosensitive drum provided in an image forming apparatus including helical gears disposed at an end of the drumCANON KK·Filed 1996·Granted Jul 20, 1999·101 cites·70 claims
- 0397US5602623APhotosensitive drum provided in an image forming apparatus including gears disposed at an end of drumCANON KK·Filed 1995·Granted Feb 11, 1997·108 cites·21 claims
- 0497US5103409AField measuring instrument and its abnormality managing methodHITACHI LTD·Filed 1990·Granted Apr 7, 1992·148 cites·10 claims
- 0595US8142635B2Capillary arraySHIMIZU YASUSHI·Filed 2010·Granted Mar 27, 2012·22 cites·2 claims
- 0695US5649264ADeveloping unit having optical detection of a residual quantity of developer in a developer containerCANON KK·Filed 1994·Granted Jul 15, 1997·65 cites·18 claims
- 0794US7785458B2Capillary arrayHITACHI LTD·Filed 2005·Granted Aug 31, 2010·22 cites·22 claims
- 0893US9614141B2Piezoelectric ceramic, piezoelectric element, piezoelectric device and piezoelectric ceramic manufacturing methodCANON KK·Filed 2016·Granted Apr 4, 2017·10 cites·28 claims
- 0992US9252685B2Dust removing device and imaging deviceCANON KK·Filed 2012·Granted Feb 2, 2016·10 cites·14 claims
- 1092US5756899AIntegrated sensorHITACHI LTD·Filed 1997·Granted May 26, 1998·104 cites·21 claims
- 1191US9515249B2Piezoelectric materialHAYASHI JUMPEI·Filed 2012·Granted Dec 6, 2016·9 cites·3 claims
- 1291US9250546B2Member for electrophotography, process cartridge, and electrophotographic apparatusCANON KK·Filed 2014·Granted Feb 2, 2016·7 cites·9 claims
- 1391US7379693B2Developing apparatusCANON KK·Filed 2006·Granted May 27, 2008·14 cites·16 claims
- 1491US7251441B2Developing apparatus including magnetic field generating means, for use with a developer which includes a magnetic toner componentCANON KK·Filed 2005·Granted Jul 31, 2007·13 cites·9 claims
- 1591US6072879ASound field control unit and sound field control deviceYAMAHA CORP·Filed 1997·Granted Jun 6, 2000·198 cites·8 claims
- 1690US5534344ACharging member having a loosely supported charger portionCANON KK·Filed 1993·Granted Jul 9, 1996·40 cites·32 claims
- 1790US4868682AMethod of recording and reproducing video and sound information using plural recording devices and plural reproducing devicesYAMAHA CORP·Filed 1987·Granted Sep 19, 1989·85 cites·4 claims
- 1889US6785507B2Image forming apparatus having function of automatically selecting one of sheet feeders, method of controlling the image forming apparatus and storage mediumCANON KK·Filed 2001·Granted Aug 31, 2004·30 cites·17 claims
- 1989US5589918AProcess cartridge, assembling method therefor and electrophotographic apparatusCANON KK·Filed 1995·Granted Dec 31, 1996·51 cites·41 claims
- 2088US8962133B2Electrophotographic member, intermediate transfer member, image forming apparatus, and method for manufacturing electrophotographic memberCANON KK·Filed 2012·Granted Feb 24, 2015·4 cites·11 claims
- 2188US7130428B2Picked-up-sound recording method and apparatusYAMAHA CORP·Filed 2001·Granted Oct 31, 2006·37 cites·21 claims
- 2288US6608903B1Sound field reproducing method and apparatus for the sameYAMAHA CORP·Filed 2000·Granted Aug 19, 2003·49 cites·13 claims
- 2387US7005052B2Capillary arrayHITACHI LTD·Filed 2001·Granted Feb 28, 2006·26 cites·12 claims
- 2487US4986127AMulti-functional sensorHITACHI LTD·Filed 1989·Granted Jan 22, 1991·53 cites·5 claims
- 2587US4364276ADifferential pressure measuring transducer assemblyHITACHI LTD·Filed 1980·Granted Dec 21, 1982·52 cites·11 claims
- 2686US5682574ADeveloping apparatus having reciprocating cleaning device for photodetectorCANON KK·Filed 1995·Granted Oct 28, 1997·42 cites·52 claims
- 2786US5565961AProcess cartridge and image forming apparatus adapted for the mounting of the same thereto with an elastic member disposed therebetweenCANON KK·Filed 1993·Granted Oct 15, 1996·32 cites·24 claims
- 2886US5025472AReverberation imparting deviceYAMAHA CORP·Filed 1988·Granted Jun 18, 1991·43 cites·11 claims
- 2985US11201571B2Method of manufacturing an oscillatorCANON KK·Filed 2017·Granted Dec 14, 2021·2 cites·14 claims
- 3085US8866952B2Dust removing device and image pickup apparatusCANON KK·Filed 2013·Granted Oct 21, 2014·6 cites·15 claims
- 3185US7808168B2Spacer, manufacturing method thereof, image display apparatus using the spacer, and manufacturing method thereofCANON KK·Filed 2008·Granted Oct 5, 2010·8 cites·4 claims
- 3285US6463245B1Developing apparatus with a DC electric field formed between a developer carrying member and a developer regulating member and image forming apparatus using the sameCANON KK·Filed 2000·Granted Oct 8, 2002·25 cites·17 claims
- 3384US6656007B2Method of manufacturing a spacer used in an electron beam generating device, an electron beam generating device using the spacer and image-forming apparatusCANON KK·Filed 2001·Granted Dec 2, 2003·20 cites·15 claims
- 3482US7463854B2Developing apparatus, processing cartridge, and image forming apparatusCANON KK·Filed 2007·Granted Dec 9, 2008·7 cites·33 claims
- 3581US9720353B2Electrophotographic intermediate transfer member and electrophotographic apparatusCANON KK·Filed 2013·Granted Aug 1, 2017·6 cites·12 claims
- 3681US9136460B2Piezoelectric element, method for manufacturing piezoelectric element, and electronic apparatusCANON KK·Filed 2015·Granted Sep 15, 2015·3 cites·18 claims
- 3781US7031629B2Image forming apparatus which recovers toner by developing deviceCANON KK·Filed 2003·Granted Apr 18, 2006·20 cites·40 claims
- 3881US4737787ATwo-wire communication systemHITACHI LTD·Filed 1986·Granted Apr 12, 1988·56 cites·13 claims
- 3980US11515468B2Piezoelectric ceramics, manufacturing method for piezoelectric ceramics, piezoelectric element, vibration device, and electronic deviceCANON KK·Filed 2019·Granted Nov 29, 2022·1 cites·10 claims
- 4080US8043493B2Multi-capillary array electrophoresis deviceHITACHI LTD·Filed 2007·Granted Oct 25, 2011·5 cites·7 claims
- 4180US6963721B2Image forming apparatus having function of automatically selecting one of sheet feeders, method of controlling the image forming apparatus and storage mediumCANON KK·Filed 2004·Granted Nov 8, 2005·16 cites·37 claims
- 4280US6878256B2Capillary array deviceHITACHI LTD·Filed 2002·Granted Apr 12, 2005·18 cites·21 claims
- 4379US12264107B2Method for manufacturing ceramic article, metal component-containing liquid, kit for manufacturing ceramic article, and ceramic articleCANON KK·Filed 2022·Granted Apr 1, 2025·0 cites·20 claims
- 4479US6539190B2Process cartridge and image forming apparatus comprising charging means including a charge member and electroconductive particlesCANON KK·Filed 2001·Granted Mar 25, 2003·18 cites·34 claims
- 4578US7239831B2Image forming apparatus when a maximum developing bias voltage |V| max and surface potential Vd of a charged image bearing member satisfy: |V| max≦|Vd|CANON KK·Filed 2004·Granted Jul 3, 2007·16 cites·11 claims
- 4678US5131051AMethod and apparatus for controlling the sound field in auditoriumsYAMAHA CORP·Filed 1990·Granted Jul 14, 1992·73 cites·18 claims
- 4776US9680085B2Ceramic powder, piezoelectric ceramic, piezoelectric element, and electronic equipmentCANON KK·Filed 2015·Granted Jun 13, 2017·2 cites·42 claims
- 4876US7440718B2Developing apparatus featuring image defect supressionCANON KK·Filed 2006·Granted Oct 21, 2008·5 cites·12 claims
- 4976USD356667SShoe soleASICS CORP·Filed 1993·Granted Mar 28, 1995·17 cites·1 claims
- 5075US5452360ASound field control device and method for controlling a sound fieldYAMAHA CORP·Filed 1994·Granted Sep 19, 1995·69 cites·19 claims
Showing the top 50 of 138 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yasushi Shimizu files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →