Inventor
FUJIWARA MITSURU
JP14 patents
⚠️ This page may combine multiple inventors who share the name “FUJIWARA MITSURU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
10 patentsUS4770615ASep 13, 1988
Screw compressor with scavenging port
HITACHI LTD32 citations92
US5223052AJun 29, 1993
Method of treating surfaces of rotors of the screw type rotary machine
HITACHI LTD27 citations91
US5082427AJan 21, 1992
Screw compressing apparatus, rotor temperature control apparatus for screw compressing apparatus and operating control apparatus for screw compressing apparatus
HITACHI LTD24 citations91
US5314321AMay 24, 1994
Screw-type rotary fluid machine including rotors having treated surfaces
HITACHI LTD39 citations90
US4560333ADec 24, 1985
Screw compressor
HITACHI LTD32 citations89
US4963079AOct 16, 1990
Screw fluid machine with high efficiency bore shape
HITACHI LTD15 citations73
US4406602ASep 27, 1983
Screw rotor with specific tooth profile
HITACHI LTD9 citations72
US4401420AAug 30, 1983
Male and female screw rotor assembly with specific tooth flanks
HITACHI LTD15 citations72
US4492546AJan 8, 1985
Rotor tooth form for a screw rotor machine
HITACHI LTD14 citations71
US4475878AOct 9, 1984
Screw rotor with tooth form produced by thermal deformation and gear backlash
HITACHI LTD14 citations71