Inventor
HIROKAWA KAZUHARU
JP25 patents
⚠️ This page may combine multiple inventors who share the name “HIROKAWA KAZUHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI HEAVY IND LTD
18 patentsUS6189891B1Feb 20, 2001
Gas turbine seal apparatus
MITSUBISHI HEAVY IND LTD64 citations96
US7114915B2Oct 3, 2006
Gas turbine and turbine rotor for a gas turbine
MITSUBISHI HEAVY IND LTD22 citations92
US6438939B1Aug 27, 2002
Combined cycle power plant and cooling steam supply method for gas turbine therein
MITSUBISHI HEAVY IND LTD20 citations92
US6367242B2Apr 9, 2002
Recovery type steam cooled gas turbine
MITSUBISHI HEAVY IND LTD33 citations92
US6205762B1Mar 27, 2001
Combined cycle power generating plant and method of supplying cooling steam for gas turbine in same
MITSUBISHI HEAVY IND LTD22 citations92
US6116017ASep 12, 2000
Combined cycle power plant with steam cooled gas turbine
MITSUBISHI HEAVY IND LTD21 citations92
US6095751AAug 1, 2000
Seal device between fastening bolt and bolthole in gas turbine disc
MITSUBISHI HEAVY IND LTD22 citations92
US6524061B1Feb 25, 2003
Arrangement for sealing a steam-cooled gas turbine
MITSUBISHI HEAVY IND LTD15 citations84
US5971707AOct 26, 1999
Gas turbine moving blade steam cooling system
MITSUBISHI HEAVY IND LTD7 citations74
US6000909ADec 14, 1999
Cooling medium path in gas turbine moving blade
MITSUBISHI HEAVY IND LTD14 citations68
US6991429B2Jan 31, 2006
Sealing structure of spindle bolt, and gas turbine
MITSUBISHI HEAVY IND LTD5 citations63
US6807870B2Oct 26, 2004
Rotary shaft axial elongation measuring method and device
MITSUBISHI HEAVY IND LTD5 citations63
US6189892B1Feb 20, 2001
High differential pressure type end rotor seal
MITSUBISHI HEAVY IND LTD6 citations62
US6688847B2Feb 10, 2004
Shaft structure and bearing structure for tail end of rotor of gas turbine
MITSUBISHI HEAVY IND LTD3 citations61
US12291981B2May 6, 2025
Blade ring assembly, gas turbine, and method for refurbishing gas turbine
MITSUBISHI HEAVY IND LTD0 citations60
US12134975B2Nov 5, 2024
Blade ring assembly, gas turbine, and method for refurbishing gas turbine
MITSUBISHI HEAVY IND LTD0 citations60
US6565311B2May 20, 2003
Gas turbine steam passage seal structure between blade ring and stationary blade
MITSUBISHI HEAVY IND LTD5 citations60
US9206705B2Dec 8, 2015
Sealing device and gas turbine having the same
MITSUBISHI HEAVY IND LTD3 citations58