Inventor · disambiguated record
Fumio Ichikawa
Also filed as: ICHIKAWA FUMIO · ORIKASA TSUYOSHI
21 granted patents·7 pending applications·336 citations·filing 1991–2017
95Inventor score
Top patents by PatentIndex Score
28 records- 0194US5657539AProcess for producing an ink jet recording headCANON KK·Filed 1994·Granted Aug 19, 1997·87 cites·10 claims
- 0284US5389954ALaser process apparatus for forming holes in a workpieceCANON KK·Filed 1991·Granted Feb 14, 1995·51 cites·32 claims
- 0379US5477244ATesting method and apparatus for judging a printing device on the basis of a test pattern recorded on a recording medium by the printing deviceCANON KK·Filed 1994·Granted Dec 19, 1995·38 cites·96 claims
- 0477US5351264AOptical apparatus for emitting light and automatic adjustment apparatus thereforCANON KK·Filed 1993·Granted Sep 27, 1994·25 cites·5 claims
- 0573US9534894B2Resonator element, gyro sensor element, electronic device, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2015·Granted Jan 3, 2017·2 cites·21 claims
- 0666US9874484B2Physical quantity detecting device, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2015·Granted Jan 23, 2018·1 cites·19 claims
- 0766US7837021B2Passenger conveyorMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Nov 23, 2010·9 cites·12 claims
- 0865US9341477B2Vibrator element, method of manufacturing vibrator element, angular velocity sensor, electronic device, and moving bodySEIKO EPSON CORP·Filed 2013·Granted May 17, 2016·2 cites·10 claims
- 0964US5436645AInspection/adjustment method and apparatus for laser beam output optical unit and laser scanning optical systemCANON KK·Filed 1993·Granted Jul 25, 1995·20 cites·5 claims
- 1063US5243755AInk-jet head assembling apparatus and methodCANON KK·Filed 1991·Granted Sep 14, 1993·23 cites·24 claims
- 1160US9140549B2Physical quantity detection element, physical quantity detection device, and electronic apparatusICHIKAWA FUMIO·Filed 2012·Granted Sep 22, 2015·2 cites·16 claims
- 1260US6397347B1Disk array apparatus capable of dealing with an abnormality occurring in one of disk units without delaying operation of the apparatusNEC CORP·Filed 1999·Granted May 28, 2002·43 cites·24 claims
- 1357US10794778B2Physical quantity detecting device, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2017·Granted Oct 6, 2020·0 cites·18 claims
- 1453US5930895AProcess for producing an ink jet recording headCANON KK·Filed 1997·Granted Aug 3, 1999·13 cites·7 claims
- 1552US5293179AWork convey method and apparatusCANON KK·Filed 1991·Granted Mar 8, 1994·17 cites·17 claims
- 1649US7161222B2Semiconductor device and semiconductor device fabrication methodOKI ELECTRIC IND CO LTD·Filed 2003·Granted Jan 9, 2007·3 cites·20 claims
- 1747US7586723B2Power source fault detection apparatus, program, and methodFUJITSU LTD·Filed 2006·Granted Sep 8, 2009·0 cites·10 claims
- 1845US9103674B2Sensor element, method for manufacturing sensor element, sensor device, and electronic apparatusICHIKAWA FUMIO·Filed 2012·Granted Aug 11, 2015·0 cites·16 claims
- 1945US9091542B2Sensor element, method for manufacturing sensor element, sensor device, and electronic apparatusICHIKAWA FUMIO·Filed 2012·Granted Jul 28, 2015·0 cites·13 claims
- 2045US2014298908A1Vibration element, electronic device, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2014·Application pending·0 cites
- 2144US9329040B2Angular velocity sensor and method of manufactureICHIKAWA FUMIO·Filed 2012·Granted May 3, 2016·0 cites·23 claims
- 2244US2013152048A1Test method, processing device, test program generation method and test program generatorFUJITSU LTD·Filed 2013·Application pending·0 cites
- 2343US2013221804A1Sensor Element, Sensor Device, And Electronic ApparatusSEIKO EPSON COPORATION·Filed 2013·Application pending·0 cites
- 2442US2015180448A1Resonator element, electronic device, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2014·Application pending·0 cites
- 2540US2017234725A1Sensor element, method of manufacturing sensor element, sensor, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2017·Application pending·0 cites
- 2640US2017141288A1Vibrator device, method of manufacturing vibrator device, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2016·Application pending·0 cites
- 2735US8402316B2Method of testing computer, computer test apparatus and non-transitory computer-readable mediumICHIKAWA FUMIO·Filed 2011·Granted Mar 19, 2013·0 cites·15 claims
- 2833US2015222245A1Method for manufacturing vibrating element, vibrating element, electronic device, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2015·Application pending·0 cites
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