Inventor · disambiguated record
Yusuke Yajima
Also filed as: YAJIMA YUSUKE
75 granted patents·5 pending applications·1,279 citations·filing 1984–2020
99Inventor score
Files withHITACHI LTD51MIZUTANI MASAHIKO6HITACHI COMM TECH LTD5KAZAWA TOHRU4FUJITSU HITACHI PLASMA DISPLAY3
Top patents by PatentIndex Score
80 records- 0199US6172363B1Method and apparatus for inspecting integrated circuit patternHITACHI LTD·Filed 1997·Granted Jan 9, 2001·185 cites·20 claims
- 0297US6329826B1Method and apparatus for inspecting integrated circuit patternHITACHI LTD·Filed 2000·Granted Dec 11, 2001·95 cites·4 claims
- 0396US7417444B2Method and apparatus for inspecting integrated circuit patternHITACHI LTD·Filed 2005·Granted Aug 26, 2008·25 cites·7 claims
- 0495US6797954B2Patterned wafer inspection method and apparatus thereforHITACHI LTD·Filed 2003·Granted Sep 28, 2004·42 cites·7 claims
- 0595US6608441B2Plasma display panel and method for manufacturing the sameFUJITSU HITACHI PLASMA DISPLAY·Filed 2001·Granted Aug 19, 2003·53 cites·14 claims
- 0693US8428457B2Optical passive network system and its operation methodMIZUTANI MASAHIKO·Filed 2010·Granted Apr 23, 2013·23 cites·9 claims
- 0792US7548694B2Apparatus of adjusting optical signal transmission timingHITACHI COMM TECH LTD·Filed 2007·Granted Jun 16, 2009·15 cites·11 claims
- 0890US7952074B2Method and apparatus for inspecting integrated circuit patternHITACHI LTD·Filed 2008·Granted May 31, 2011·8 cites·18 claims
- 0990US7483506B2Bit synchronization circuit with phase tracking functionHITACHI COMM TECH LTD·Filed 2005·Granted Jan 27, 2009·18 cites·13 claims
- 1090US6979823B2Patterned wafer inspection method and apparatus thereforHITACHI LTD·Filed 2004·Granted Dec 27, 2005·21 cites·9 claims
- 1188US7680414B2Passive optical network system and operating method thereofHITACHI LTD·Filed 2007·Granted Mar 16, 2010·13 cites·1 claims
- 1288US4716852AApparatus for thin film formation using photo-induced chemical reactionHITACHI LTD·Filed 1986·Granted Jan 5, 1988·61 cites·16 claims
- 1387US8457492B2Optical access systemOHIRA MASAKI·Filed 2010·Granted Jun 4, 2013·13 cites·11 claims
- 1487US7242015B2Patterned wafer inspection method and apparatus thereforHITACHI LTD·Filed 2005·Granted Jul 10, 2007·6 cites·21 claims
- 1586US8249454B2Optical communication system and optical line terminating apparatusSUGAWARA TOSHIKI·Filed 2009·Granted Aug 21, 2012·15 cites·11 claims
- 1686US5168224ADetecting method and apparatus of specific substanceHITACHI LTD·Filed 1989·Granted Dec 1, 1992·52 cites·26 claims
- 1785US8139950B2Passive optical network system, optical line terminator and, communication method of passive optical network systemNIIBE MASAO·Filed 2008·Granted Mar 20, 2012·15 cites·11 claims
- 1885US8027258B2Communication system and communication apparatusHITACHI LTD·Filed 2009·Granted Sep 27, 2011·11 cites·11 claims
- 1985US7725031B2Passive optical network system and ranging system thereofHITACHI LTD·Filed 2008·Granted May 25, 2010·7 cites·7 claims
- 2085US7489869B2Passive optical network system and ranging system thereofHITACHI COMM TECH LTD·Filed 2007·Granted Feb 10, 2009·7 cites·4 claims
- 2185US6559663B2Method and apparatus for inspecting integrated circuit patternHITACHI LTD·Filed 2001·Granted May 6, 2003·20 cites·10 claims
- 2284US8554075B2Communication system, subscriber accommodating apparatus and communication methodMIZUTANI MASAHIKO·Filed 2009·Granted Oct 8, 2013·9 cites·5 claims
- 2384US8107824B2Passive optical network system and communication method thereforTSUCHIYA AKIHIKO·Filed 2008·Granted Jan 31, 2012·13 cites·3 claims
- 2484US7026830B2Method and apparatus for inspecting integrated circuit patternHITACHI LTD·Filed 2003·Granted Apr 11, 2006·19 cites·6 claims
- 2584US6476390B1Method and apparatus for inspecting integrated circuit pattern using a plurality of charged particle beamsHITACHI LTD·Filed 1998·Granted Nov 5, 2002·68 cites·16 claims
- 2683US8249458B2Optical communication system and method for operating the sameMIZUTANI MASAHIKO·Filed 2009·Granted Aug 21, 2012·9 cites·9 claims
- 2782US8254780B2Passive optical network system and fault determination methodMIZUTANI MASAHIKO·Filed 2009·Granted Aug 28, 2012·10 cites·3 claims
- 2882US7957647B2Passive optical network system and ranging methodHITACHI LTD·Filed 2008·Granted Jun 7, 2011·9 cites·11 claims
- 2982US7239813B2Bit synchronization circuit and central terminal for PON systemsHITACHI COMM TECH LTD·Filed 2003·Granted Jul 3, 2007·24 cites·4 claims
- 3080US7711268B2Passive optical network system and ranging system thereofHITACHI LTD·Filed 2008·Granted May 4, 2010·5 cites·7 claims
- 3180US4615756ADry etching apparatusHITACHI LTD·Filed 1985·Granted Oct 7, 1986·54 cites·22 claims
- 3279US11593739B2System and method for supporting production managementHITACHI LTD·Filed 2019·Granted Feb 28, 2023·2 cites·8 claims
- 3379US8005362B2Passive optical network system and optical line terminalHITACHI LTD·Filed 2008·Granted Aug 23, 2011·6 cites·3 claims
- 3479US4678536AMethod of photochemical surface treatmentHITACHI LTD·Filed 1985·Granted Jul 7, 1987·37 cites·4 claims
- 3577US7512341B2Passive optical network system and ranging system thereofHITACHI COMM TECH LTD·Filed 2008·Granted Mar 31, 2009·4 cites·3 claims
- 3674US11367032B2System and method for supporting production managementHITACHI LTD·Filed 2020·Granted Jun 21, 2022·1 cites·12 claims
- 3774US8116627B2PON system method for receiving optical signal and OLTIKEDA HIROKI·Filed 2008·Granted Feb 14, 2012·5 cites·15 claims
- 3873US8249455B2Passive optical network system and ranging methodKAZAWA TOHRU·Filed 2011·Granted Aug 21, 2012·3 cites·8 claims
- 3973US8095004B2Passive optical network system and operation method of the sameMIZUTANI MASAHIKO·Filed 2009·Granted Jan 10, 2012·4 cites·7 claims
- 4073US6871314B2Forward error correcting code encoding equipment, forward error correcting code decoding equipment, and transmission apparatusHITACHI LTD·Filed 2002·Granted Mar 22, 2005·14 cites·8 claims
- 4172US8467684B2Apparatus of adjusting optical signal transmission timingKAZAWA TOHRU·Filed 2011·Granted Jun 18, 2013·2 cites·7 claims
- 4272US8090261B2Network system, optical line terminating apparatus, and optical network apparatusSUGAWARA TOSHIKI·Filed 2008·Granted Jan 3, 2012·5 cites·34 claims
- 4372US7450090B2Plasma display panel and imaging device using the sameHITACHI LTD·Filed 2006·Granted Nov 11, 2008·1 cites·78 claims
- 4472US5666053ACharged particle beam apparatus for measuring magnetic fieldHITACHI LTD·Filed 1995·Granted Sep 9, 1997·25 cites·38 claims
- 4572US4643799AMethod of dry etchingHITACHI LTD·Filed 1985·Granted Feb 17, 1987·38 cites·10 claims
- 4671US8184976B2Passive optical network system and operating method thereofKAZAWA TOHRU·Filed 2009·Granted May 22, 2012·4 cites·5 claims
- 4771US5936244AElectron microscope and electron microscopy methodHITACHI LTD·Filed 1995·Granted Aug 10, 1999·23 cites·5 claims
- 4871US5345080AMethod of observing electron microscopic images and an apparatus for carrying out of the sameHITACHI LTD·Filed 1992·Granted Sep 6, 1994·22 cites·34 claims
- 4971US5298747AScanning interference electron microscopyHITACHI LTD·Filed 1991·Granted Mar 29, 1994·23 cites·8 claims
- 5070US5153434AElectron microscope and method for observing microscopic imageHITACHI LTD·Filed 1991·Granted Oct 6, 1992·21 cites·42 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yusuke Yajima 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 →