Inventor
OCHIAI IZUMI
16 patents
Patents
16 patentsUS4331280AMay 25, 1982
Method of jointing pipes by friction welding
HITACHI LTD59 citations93
US4860021AAug 22, 1989
Parabolic antenna
HITACHI LTD49 citations92
US4506423AMar 26, 1985
Method of producing a fluid pressure reducing device
HITACHI LTD52 citations92
US4331286AMay 25, 1982
Method for pressure bonding metal members by utilizing eutectic reaction
HITACHI LTD38 citations92
US4748837AJun 7, 1988
Method of forming spherical shells
HITACHI LTD28 citations91
US4746827AMay 24, 1988
Rotor for electric motor
HITACHI LTD47 citations89
US4351178ASep 28, 1982
Apparatus for bending a straight tube into a serpentine tube
HITACHI LTD43 citations87
US4597171AJul 1, 1986
Tube-enlarging press for use in heat exchanger fabrication
HITACHI LTD22 citations78
US4698904AOct 13, 1987
Apparatus for assembling fins and tubes for heat exchangers
HITACHI LTD21 citations77
US4689637AAug 25, 1987
Parabola antenna having increased mechanical strength
HITACHI LTD12 citations74
US4593756AJun 10, 1986
Fin-and-tube type heat exchanger
HITACHI LTD19 citations72
US4916459AApr 10, 1990
Parabolic antenna dish
HITACHI LTD15 citations71
US4898232AFeb 6, 1990
Heat exchanger and process for producing the same
HITACHI LTD10 citations71
US4583675AApr 22, 1986
Method of production of a part formed with an opening
HITACHI LTD9 citations66
US4142392AMar 6, 1979
Internally groove forming apparatus for heat exchanging pipes
HITACHI LTD5 citations61
US4509354AApr 9, 1985
Method of manufacturing fan guard
HITACHI LTD4 citations58