Inventor · disambiguated record
Hisatoshi Hirota
Also filed as: HIROTA HISATOSHI
62 granted patents·30 pending applications·940 citations·filing 1985–2013
99Inventor score
Top patents by PatentIndex Score
92 records- 0195US6270015B1Radiator for a vehicleTGK CO LTD·Filed 2000·Granted Aug 7, 2001·64 cites·15 claims
- 0291US5702235ACapacity control device for valiable-capacity compressorTGK CO LTD·Filed 1996·Granted Dec 30, 1997·77 cites·15 claims
- 0389US7452192B2Control valve for variable displacement compressorTGK CO LTD·Filed 2005·Granted Nov 18, 2008·13 cites·14 claims
- 0488US7207186B2Refrigeration cycleTGK CO LTD·Filed 2004·Granted Apr 24, 2007·32 cites·17 claims
- 0588US6351959B1Refrigerating cycle with a by-pass lineTGK CO LTD·Filed 2000·Granted Mar 5, 2002·34 cites·12 claims
- 0686US9285051B2Control valve driven by stepping motorTGK CO LTD·Filed 2013·Granted Mar 15, 2016·9 cites·8 claims
- 0786US6662581B2Variable displacement compressor and displacement control valve for variable displacement compressorTGK CO LTD·Filed 2002·Granted Dec 16, 2003·34 cites·19 claims
- 0885US6443708B1Compression volume control apparatus for refrigeration cycleTGK CO LTD·Filed 2000·Granted Sep 3, 2002·27 cites·14 claims
- 0984US7118088B2Fluid control valveTGK CO LTD·Filed 2005·Granted Oct 10, 2006·10 cites·10 claims
- 1084US6866242B2Proportional valveTGK CO LTD·Filed 2003·Granted Mar 15, 2005·32 cites·6 claims
- 1182US7437881B2Control valve for variable displacement compressorTGK CO LTD·Filed 2006·Granted Oct 21, 2008·7 cites·6 claims
- 1280US6804970B2Method of controlling refrigeration cycleTGK CO LTD·Filed 2003·Granted Oct 19, 2004·23 cites·14 claims
- 1380US6279331B1Vehicular refrigerating cycle with a bypass lineTGK CO LTD·Filed 2000·Granted Aug 28, 2001·28 cites·7 claims
- 1479US4591677AThree-function pressure switchTGK CO LTD·Filed 1985·Granted May 27, 1986·28 cites·2 claims
- 1576US7387501B2Control valve for variable displacement compressorTGK CO LTD·Filed 2005·Granted Jun 17, 2008·5 cites·7 claims
- 1675US5303864AExpansion valveCONTROLS GMBH DEUTSCHE·Filed 1992·Granted Apr 19, 1994·43 cites·30 claims
- 1775US4593166ADual action pressure switchTGK CO LTD·Filed 1985·Granted Jun 3, 1986·22 cites·3 claims
- 1874US7263857B2Constant flow rate expansion valueTGK CO LTD·Filed 2006·Granted Sep 4, 2007·4 cites·5 claims
- 1974US7040595B2Constant flow rate expansion valveTGK CO LTD·Filed 2003·Granted May 9, 2006·20 cites·24 claims
- 2074US6315266B1Pilot-operated flow regulating valveTGK CO LTD·Filed 2000·Granted Nov 13, 2001·26 cites·11 claims
- 2171US6783110B2Proportional solenoid valveTGK CO LTD·Filed 2002·Granted Aug 31, 2004·18 cites·20 claims
- 2271US6612542B2Motor operated butterfly valveTGK CO LTD·Filed 2001·Granted Sep 2, 2003·16 cites·18 claims
- 2370US7014427B1Capacity controller of capacity variable compressorTGK CO LTD·Filed 2000·Granted Mar 21, 2006·14 cites·6 claims
- 2467US8956127B2Control valve for variable displacement compressorHIROTA HISATOSHI·Filed 2012·Granted Feb 17, 2015·2 cites·9 claims
- 2567US6662582B2Displacement control valveTGK CO LTD·Filed 2002·Granted Dec 16, 2003·11 cites·6 claims
- 2666US7121811B2Capacity control valve for variable displacement compressorTGK CO LTD·Filed 2003·Granted Oct 17, 2006·8 cites·8 claims
- 2766US6957663B2Solenoid control valveTGK CO LTD·Filed 2003·Granted Oct 25, 2005·15 cites·22 claims
- 2865US7386987B2Refrigerant relief deviceTGK CO LTD·Filed 2005·Granted Jun 17, 2008·1 cites·12 claims
- 2965US6612503B2Expansion valveTGK CO LTD·Filed 2002·Granted Sep 2, 2003·13 cites·2 claims
- 3065US5996369AAir conditioner with sub-condenserTGK CO LTD·Filed 1998·Granted Dec 7, 1999·27 cites·13 claims
- 3164US6712281B2Expansion valveTGK CO LTD·Filed 2002·Granted Mar 30, 2004·12 cites·2 claims
- 3263US7018179B2Capacity control valve for variable displacement compressorTGK CO LTD·Filed 2003·Granted Mar 28, 2006·7 cites·5 claims
- 3363US6192695B1Refrigerating cycleTGK CO LTD·Filed 1998·Granted Feb 27, 2001·25 cites·68 claims
- 3461US6889554B2Method of adjusting pressure sensorTGK CO LTD·Filed 2002·Granted May 10, 2005·14 cites·8 claims
- 3561US6860294B2Four-way switching valveTGK CO LTD·Filed 2003·Granted Mar 1, 2005·10 cites·8 claims
- 3660US6997000B2Refrigeration system and method of operation thereforTGK CO LTD·Filed 2003·Granted Feb 14, 2006·9 cites·6 claims
- 3760US6543672B2Method of forming vacuum chamber of control valve for variable capacity compressorTGK CO LTD·Filed 2001·Granted Apr 8, 2003·7 cites·10 claims
- 3858US6986498B2Differential pressure valveTGK CO LTD·Filed 2003·Granted Jan 17, 2006·9 cites·14 claims
- 3957US7036744B2Solenoid valve-equipped expansion valveTGK CO LTD·Filed 2003·Granted May 2, 2006·8 cites·2 claims
- 4057US6425528B2Expansion valveTGK CO LTD·Filed 2001·Granted Jul 30, 2002·2 cites·6 claims
- 4157US6314753B1Supercooling degree-controlled expansion valveTGK CO LTD·Filed 2000·Granted Nov 13, 2001·9 cites·8 claims
- 4257US2008202157A1Internal heat exchanger for automotive air conditionerTGK CO LTD·Filed 2008·Application pending·0 cites
- 4356US6302656B1Solenoid controlled valve and variable displacement compressorTGK CO LTD·Filed 1999·Granted Oct 16, 2001·16 cites·8 claims
- 4456US2008307812A1Control valve for compressorTGK CO LTD·Filed 2008·Application pending·0 cites
- 4555US6394761B1Capacity controller of capacity variable compressorTGK CO LTD·Filed 2000·Granted May 28, 2002·4 cites·2 claims
- 4654US7047763B2Constant differential pressure valveTGK CO LTD·Filed 2004·Granted May 23, 2006·6 cites·3 claims
- 4754US6532764B1Degree of supercooling control type expansion valveTGK CO LTD·Filed 1999·Granted Mar 18, 2003·19 cites·9 claims
- 4854US6267562B1Variable displacement compressorTGK CO LTD·Filed 1999·Granted Jul 31, 2001·15 cites·16 claims
- 4954US2007264134A1Control valve for variable displacement compressorTGK CO LTD·Filed 2007·Application pending·0 cites
- 5054US2008141691A1Automotive air conditionerTGK CO LTD·Filed 2007·Application pending·0 cites
Showing the top 50 of 92 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →