Inventor · disambiguated record
Hisayoshi Sakai
Also filed as: SAKAI HISAYOSHI
21 granted patents·146 citations·filing 1991–2023
93Inventor score
Top patents by PatentIndex Score
21 records- 0194US5239892ARotating deviceMITUTOYO CORP·Filed 1991·Granted Aug 31, 1993·71 cites·13 claims
- 0291US10197375B2Probe head of three-dimensional coordinate measuring device and touch detection methodMITUTOYO CORP·Filed 2017·Granted Feb 5, 2019·7 cites·13 claims
- 0386US9664629B2Industrial machine and method for measuring amount of expansion/contraction of industrial machineMITUTOYO CORP·Filed 2014·Granted May 30, 2017·8 cites·11 claims
- 0479US7835411B2Laser frequency stabilizing device, method and programMITUTOYO CORP·Filed 2009·Granted Nov 16, 2010·6 cites·17 claims
- 0577US8794610B2Two-dimension precision transfer equipment, three-dimension precision transfer equipment, and coordinate measuring machineSAKAI HISAYOSHI·Filed 2012·Granted Aug 5, 2014·5 cites·12 claims
- 0675US11193762B2Rotary table and roundness measuring apparatusMITUTOYO CORP·Filed 2019·Granted Dec 7, 2021·1 cites·12 claims
- 0770US9227286B2Precision feeding device and precision transfer equipmentSAKAI HISAYOSHI·Filed 2012·Granted Jan 5, 2016·3 cites·5 claims
- 0869US10119565B2Air bearingMITUTOYO CORP·Filed 2017·Granted Nov 6, 2018·1 cites·20 claims
- 0963US12435756B2Dustproof seal structureMITUTOYO CORP·Filed 2023·Granted Oct 7, 2025·0 cites·16 claims
- 1062USD377207SUrinalTOTO LTD·Filed 1996·Granted Jan 7, 1997·11 cites·1 claims
- 1161US6697162B1Optical interferometric measuring instrument and laser interference apparatusMITUTOYO CORP·Filed 2000·Granted Feb 24, 2004·12 cites·13 claims
- 1257US10962053B2Air bearingMITUTOYO CORP·Filed 2019·Granted Mar 30, 2021·0 cites·14 claims
- 1355US11333619B2Measurement X-ray CT apparatusMITUTOYO CORP·Filed 2020·Granted May 17, 2022·0 cites·11 claims
- 1454USD406326SWater closetTOTO LTD·Filed 1997·Granted Mar 2, 1999·7 cites·1 claims
- 1554USD377209SWater closet tankTOTO LTD·Filed 1995·Granted Jan 7, 1997·8 cites·1 claims
- 1651USD410279SWater closetTOTO LTD·Filed 1998·Granted May 25, 1999·6 cites·1 claims
- 1750US9316472B2Slide guide deviceMITUTOYO CORP·Filed 2014·Granted Apr 19, 2016·0 cites·5 claims
- 1848US9291208B2Rotation transmitterMITUTOYO CORP·Filed 2014·Granted Mar 22, 2016·0 cites·6 claims
- 1947US9746302B2Method of placing work piece on table of measuring deviceMITUTOYO CORP·Filed 2015·Granted Aug 29, 2017·0 cites·10 claims
- 2047US8919219B2Precision transfer equipmentSAKAI HISAYOSHI·Filed 2012·Granted Dec 30, 2014·0 cites·4 claims
- 2145US11103968B2Rotary table apparatusMITUTOYO CORP·Filed 2019·Granted Aug 31, 2021·0 cites·13 claims
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