Inventor · disambiguated record
Hajime Ichikawa
Also filed as: ICHIKAWA HAJIME
14 granted patents·1 pending application·544 citations·filing 1984–2018
94Inventor score
Top patents by PatentIndex Score
15 records- 0197US6456382B2Interferometer that measures aspherical surfacesNIKON CORP·Filed 2001·Granted Sep 24, 2002·69 cites·6 claims
- 0291US4890245AMethod for measuring temperature of semiconductor substrate and apparatus thereforNIKON CORP·Filed 1987·Granted Dec 26, 1989·81 cites·23 claims
- 0388US4859832ALight radiation apparatusNIKON CORP·Filed 1987·Granted Aug 22, 1989·93 cites·16 claims
- 0487US6344898B1Interferometric apparatus and methods for measuring surface topography of a test surfaceNIKON CORP·Filed 1999·Granted Feb 5, 2002·79 cites·4 claims
- 0584US4599272AAnti-reflection coating for optical component and method for forming the sameOLYMPUS OPTICAL CO·Filed 1984·Granted Jul 8, 1986·40 cites·14 claims
- 0677US4944581ARear face reflection mirror of multilayer film for synthetic resin optical partsOLYMPUS OPTICAL CO·Filed 1989·Granted Jul 31, 1990·37 cites·4 claims
- 0774US5982490AApparatus and method for wavefront absolute calibration and method of synthesizing wavefrontsNIKON CORP·Filed 1998·Granted Nov 9, 1999·39 cites·11 claims
- 0866US6032377ANon-spherical surface shape measuring deviceNIKON CORP·Filed 1998·Granted Mar 7, 2000·28 cites·42 claims
- 0962US5986760AShape measurement method and high-precision lens manufacturing processNIKON CORP·Filed 1998·Granted Nov 16, 1999·23 cites·11 claims
- 1062US4979802ASynthetic resin half-mirrorOLYMPUS OPTICAL CO·Filed 1990·Granted Dec 25, 1990·21 cites·12 claims
- 1160US4988164AAnti-reflection film for synthetic resin optical elementsOLYMPUS OPTICAL CO·Filed 1989·Granted Jan 29, 1991·19 cites·4 claims
- 1253US10212665B2Mobile device, control program therefor, and control method thereforKYOCERA CORP·Filed 2014·Granted Feb 19, 2019·0 cites·6 claims
- 1350US6100980AMagnification calibration apparatus and shape measuring systemNIKON CORP·Filed 1998·Granted Aug 8, 2000·15 cites·9 claims
- 1444US10800467B2Door handleTOYOTA MOTOR CO LTD·Filed 2018·Granted Oct 13, 2020·0 cites·9 claims
- 1540US2013054243A1Electronic device and control methodICHIKAWA HAJIME·Filed 2010·Application pending·0 cites
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