Inventor · disambiguated record
Yuichi Ichikawa
Also filed as: ICHIKAWA YUICHI
30 granted patents·11 pending applications·1,675 citations·filing 1989–2023
97Inventor score
Files withNTT DOCOMO INC8ASAHI OPTICAL CO LTD6MITUTOYO CORP6CASIO COMPUTER CO LTD4SUMITOMO BAKELITE CO3
Top patents by PatentIndex Score
41 records- 0197US7043852B2Measuring instrumentMITUTOYO CORP·Filed 2004·Granted May 16, 2006·1.4k cites·9 claims
- 0293US11892362B2Multi-position tolerant contact gaugeMITUTOYO CORP·Filed 2021·Granted Feb 6, 2024·2 cites·7 claims
- 0389US6412187B1Analog quantity display method, analog quantity measuring method, and digital/analog display type measuring instrumentMITUTOYO CORP·Filed 2000·Granted Jul 2, 2002·43 cites·17 claims
- 0486US8232493B2Operating deviceICHIKAWA YUICHI·Filed 2008·Granted Jul 31, 2012·21 cites·17 claims
- 0586US7421577B2Communication device, control method of communication device, program and communication methodNTT DOCOMO INC·Filed 2004·Granted Sep 2, 2008·49 cites·21 claims
- 0684US5281045AMovable member positioning mechanismASAHI OPTICAL CO LTD·Filed 1992·Granted Jan 25, 1994·25 cites·6 claims
- 0774US5838504APrism and real image type view finderASAHI OPTICAL CO LTD·Filed 1996·Granted Nov 17, 1998·48 cites·5 claims
- 0871US11586351B2Electronic device, electronic device control method, and recording mediumCASIO COMPUTER CO LTD·Filed 2022·Granted Feb 21, 2023·0 cites·11 claims
- 0966US11274830B2Combustor nozzle, combustor, and gas turbineMITSUBISHI HITACHI POWER SYS LTD·Filed 2018·Granted Mar 15, 2022·1 cites·13 claims
- 1066US7647075B2Terminal device and programNTT DOCOMO INC·Filed 2004·Granted Jan 12, 2010·8 cites·35 claims
- 1166US7013576B2Measuring device using multi-start threaded spindleMITUTOYO CORP·Filed 2002·Granted Mar 21, 2006·13 cites·8 claims
- 1265US7401127B2Communication terminal device and programNTT DOCOMO INC·Filed 2004·Granted Jul 15, 2008·9 cites·22 claims
- 1364US11366587B2Electronic device, electronic device control method, and recording mediumCASIO COMPUTER CO LTD·Filed 2020·Granted Jun 21, 2022·0 cites·20 claims
- 1464US6840230B2Reservoir unitAISAN IND·Filed 2003·Granted Jan 11, 2005·10 cites·6 claims
- 1563US7164857B2Communication terminal and programNTT DOCOMO INC·Filed 2004·Granted Jan 16, 2007·5 cites·10 claims
- 1660US11428409B2Combustor and gas turbine including the sameMITSUBISHI POWER LTD·Filed 2019·Granted Aug 30, 2022·0 cites·13 claims
- 1759US5452034ARegulated parallax compensation system for a camera finderASAHI OPTICAL CO LTD·Filed 1994·Granted Sep 19, 1995·8 cites·25 claims
- 1859US5386259ACoordinating mechanism for picture image area and field frame size adjusting apparatus of cameraASAHI OPTICAL CO LTD·Filed 1993·Granted Jan 31, 1995·8 cites·22 claims
- 1958US8023240B2Operating deviceHOYA CORP·Filed 2008·Granted Sep 20, 2011·2 cites·20 claims
- 2054US7590411B2Communication terminal operational with multiple applicationsNTT DOCOMO INC·Filed 2004·Granted Sep 15, 2009·3 cites·23 claims
- 2154US7558963B2Communication device and programNTT DOCOMO INC·Filed 2004·Granted Jul 7, 2009·3 cites·22 claims
- 2253US5305041ARemotely controllable camera systemASAHI OPTICAL CO LTD·Filed 1993·Granted Apr 19, 1994·6 cites·9 claims
- 2352US7899973B2Information processing device and programNTT DOCOMO INC·Filed 2008·Granted Mar 1, 2011·0 cites·8 claims
- 2452US2017186332A1Communication method, communication device and storage mediumCASIO COMPUTER CO LTD·Filed 2016·Application pending·0 cites
- 2551US2025209751A1Guide image management apparatusNTT DOCOMO INC·Filed 2023·Application pending·0 cites
- 2650US2015017539A1Carbon material for lithium ion secondary battery, negative electrode material for lithium ion secondary battery, and lithium ion secondary batterySUMITOMO BAKELITE CO·Filed 2013·Application pending·0 cites
- 2749US7020979B2Digital displacement measuring instrumentMITUTOYO CORP·Filed 2004·Granted Apr 4, 2006·4 cites·4 claims
- 2848US11698882B2Electronic apparatus, control method of electronic apparatus, and control program of electronic apparatusCASIO COMPUTER CO LTD·Filed 2019·Granted Jul 11, 2023·0 cites·9 claims
- 2948US2005021792A1Method for managing data sharing among application programsFiled 2004·Application pending·0 cites
- 3046US2019353505A1Position measurement apparatusMITUTOYO CORP·Filed 2019·Application pending·0 cites
- 3145US2004260793A1Communication device and programFiled 2004·Application pending·0 cites
- 3244USD728662SDigital cameraNIKON CORP·Filed 2014·Granted May 5, 2015·4 cites·1 claims
- 3344US2014242434A1Negative electrode for lithium ion secondary batteries and lithium ion secondary batterySUMITOMO BAKELITE CO·Filed 2012·Application pending·0 cites
- 3444US2005005139A1Terminal device and programFiled 2004·Application pending·0 cites
- 3544US2014230240A1Method of producing lithium ion secondary batterySUMITOMO BAKELITE CO·Filed 2012·Application pending·0 cites
- 3643US5754086ATransformer unit and coil case and coil bobbin for use thereforSANYO ELECTRIC WORKS·Filed 1994·Granted May 19, 1998·11 cites·11 claims
- 3742US2004267783A1Information processing device and programNARUSE NAOKI·Filed 2004·Application pending·0 cites
- 3842US2014227522A1Carbon material for lithium ion secondary battery, negative electrode material for lithium ion secondary battery and lithium ion secondary batterySASAKI TATSURO·Filed 2011·Application pending·0 cites
- 3935US8546746B2Photoelectric encoder and photoelectric encoder systemMORI HIROATSU·Filed 2011·Granted Oct 1, 2013·0 cites·16 claims
- 4035US6327442B1Circuit board for cameraASAHI OPTICAL CO LTD·Filed 1999·Granted Dec 4, 2001·5 cites·11 claims
- 4131US4918407AOscillation circuitSANYO ELECTRIC CO·Filed 1989·Granted Apr 17, 1990·1 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →