Inventor · disambiguated record
Hirataka Ukai
Also filed as: UKAI HIRATAKA
8 granted patents·1 pending application·129 citations·filing 1994–2020
87Inventor score
Top patents by PatentIndex Score
9 records- 0192US6472651B1Optical information storage device having phase compensating mechanism and polarization plane rotating mechanismFUJITSU LTD·Filed 2000·Granted Oct 29, 2002·61 cites·12 claims
- 0271US6141309AOptical memory apparatus having a supporting base with an integral, fixed optical part mounting portionFUJITSU LTD·Filed 1996·Granted Oct 31, 2000·20 cites·21 claims
- 0370US6411581B1Optical memory apparatus having planar printed circuit board mounted thereinFUJITSU LTD·Filed 1997·Granted Jun 25, 2002·20 cites·29 claims
- 0455US12189061B2Optical module and distance measuring deviceSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2019·Granted Jan 7, 2025·0 cites·12 claims
- 0555US6738334B1Optical memory apparatus having a base with a unitary and integral optical component mounting portion and a precision mounting surface for mounting an optical componentFUJITSU LTD·Filed 2000·Granted May 18, 2004·3 cites·12 claims
- 0654US6167018AOptical information storage apparatus having cylindrical lens for eliminating astigmatism generated by polarization beam splitter and newly generating astigmatismFUJITSU LTD·Filed 1998·Granted Dec 26, 2000·11 cites·10 claims
- 0754US6131840AMechanism for preventing uneven take-up of tapeFUJITSU LTD·Filed 1994·Granted Oct 17, 2000·7 cites·15 claims
- 0850US2022291346A1Illumination device and ranging moduleSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2020·Application pending·0 cites
- 0947US6388972B1Optical memory apparatus having turn table unit mounted by a plate having an integral guide portion to a supporting baseFUJITSU LTD·Filed 1997·Granted May 14, 2002·7 cites·31 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →