Inventor · disambiguated record
Kazuharu Hirokawa
Also filed as: HIROKAWA KAZUHARU
25 granted patents·4 pending applications·354 citations·filing 1998–2024
96Inventor score
Files withMITSUBISHI HEAVY IND LTD20TEZUKA NORIKAZU2HIRATA TOMOYUKI1HIROKAWA KAZUHARU1MITSUBISHI HEAVY IDUSTRIES LTD1
Top patents by PatentIndex Score
29 records- 0191US8123409B2Journal bearingWAKI YUICHIRO·Filed 2009·Granted Feb 28, 2012·16 cites·4 claims
- 0281US6438939B1Combined cycle power plant and cooling steam supply method for gas turbine thereinMITSUBISHI HEAVY IND LTD·Filed 2000·Granted Aug 27, 2002·20 cites·8 claims
- 0379US6189891B1Gas turbine seal apparatusMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Feb 20, 2001·64 cites·4 claims
- 0476US12291981B2Blade ring assembly, gas turbine, and method for refurbishing gas turbineMITSUBISHI HEAVY IND LTD·Filed 2024·Granted May 6, 2025·0 cites·9 claims
- 0567US7114915B2Gas turbine and turbine rotor for a gas turbineMITSUBISHI HEAVY IND LTD·Filed 2003·Granted Oct 3, 2006·22 cites·5 claims
- 0666US12134975B2Blade ring assembly, gas turbine, and method for refurbishing gas turbineMITSUBISHI HEAVY IND LTD·Filed 2022·Granted Nov 5, 2024·0 cites·12 claims
- 0763US9206705B2Sealing device and gas turbine having the sameMITSUBISHI HEAVY IND LTD·Filed 2012·Granted Dec 8, 2015·3 cites·8 claims
- 0862US8834103B2Structure for mounting between rotation shaft and lever, method for mounting between rotation shaft and lever, and fluid machineHIROKAWA KAZUHARU·Filed 2009·Granted Sep 16, 2014·5 cites·9 claims
- 0961US6367242B2Recovery type steam cooled gas turbineMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Apr 9, 2002·33 cites·8 claims
- 1061US6116017ACombined cycle power plant with steam cooled gas turbineMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Sep 12, 2000·21 cites·2 claims
- 1160US6205762B1Combined cycle power generating plant and method of supplying cooling steam for gas turbine in sameMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Mar 27, 2001·22 cites·21 claims
- 1259US9284851B2Axial-flow fluid machine, and variable vane drive device thereofTAKAOKA YOSHIMASA·Filed 2012·Granted Mar 15, 2016·3 cites·12 claims
- 1358US6089012ASteam cooled gas turbine systemMITSUBISHI HEAVY IND INC·Filed 1998·Granted Jul 18, 2000·32 cites·2 claims
- 1455US6524061B1Arrangement for sealing a steam-cooled gas turbineMITSUBISHI HEAVY IND LTD·Filed 2000·Granted Feb 25, 2003·15 cites·24 claims
- 1554US6224327B1Steam-cooling type gas turbineMITSUBISHI HEAVY IDUSTRIES LTD·Filed 1999·Granted May 1, 2001·29 cites·20 claims
- 1652US8899934B2Rotor structureHIRATA TOMOYUKI·Filed 2012·Granted Dec 2, 2014·2 cites·8 claims
- 1752US6807870B2Rotary shaft axial elongation measuring method and deviceMITSUBISHI HEAVY IND LTD·Filed 2001·Granted Oct 26, 2004·5 cites·13 claims
- 1849US2020165709A1Gas turbine disk material and heat treatment method thereforMITSUBISHI HITACHI POWER SYS·Filed 2018·Application pending·0 cites
- 1947US6095751ASeal device between fastening bolt and bolthole in gas turbine discMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Aug 1, 2000·22 cites·3 claims
- 2046US6991429B2Sealing structure of spindle bolt, and gas turbineMITSUBISHI HEAVY IND LTD·Filed 2002·Granted Jan 31, 2006·5 cites·13 claims
- 2144US2013213002A1Gas turbine start/stop apparatusMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 2240US2007234703A1Sealing structure of spindle bolt, and gas turbineMITSUBISHI HEAVY IND LTD·Filed 2005·Application pending·0 cites
- 2338US6565311B2Gas turbine steam passage seal structure between blade ring and stationary bladeMITSUBISHI HEAVY IND LTD·Filed 2001·Granted May 20, 2003·5 cites·13 claims
- 2437US8607604B2Bolt and manufacturing method of boltTEZUKA NORIKAZU·Filed 2011·Granted Dec 17, 2013·0 cites·3 claims
- 2537US6688847B2Shaft structure and bearing structure for tail end of rotor of gas turbineMITSUBISHI HEAVY IND LTD·Filed 2001·Granted Feb 10, 2004·3 cites·10 claims
- 2636US2009003968A1Bolt and Manufacturing Method of BoltTEZUKA NORIKAZU·Filed 2007·Application pending·0 cites
- 2734US6189892B1High differential pressure type end rotor sealMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Feb 20, 2001·6 cites·6 claims
- 2834US6000909ACooling medium path in gas turbine moving bladeMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Dec 14, 1999·14 cites·4 claims
- 2933US5971707AGas turbine moving blade steam cooling systemMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Oct 26, 1999·7 cites·11 claims
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