Inventor
TOHKAIRIN AKIRA
JP13 patents
⚠️ This page may combine multiple inventors who share the name “TOHKAIRIN AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS4376333AMar 15, 1983
Method of joining members of metal by forced insertion
HITACHI LTD89 citations95
US4377762AMar 22, 1983
Rotary electric machine rotor and a method of manufacturing the same
HITACHI LTD54 citations91
US4339873AJul 20, 1982
Method of making rotor of rotary machines
HITACHI LTD39 citations91
US4829206AMay 9, 1989
Armature for an electric rotary machine and method of manufacturing the same
HITACHI LTD41 citations86
US4249298AFeb 10, 1981
Method for connecting two members
HITACHI LTD25 citations81
US4370793AFeb 1, 1983
Method of coupling two metallic members
HITACHI LTD8 citations73
US4335496AJun 22, 1982
Method of coupling two concentrically disposed members
HITACHI LTD13 citations73
US4290295ASep 22, 1981
Method of making V-grooved pulley assembly
HITACHI LTD9 citations73
US4325678AApr 20, 1982
Hydraulic pressure producing system for a hydraulic press
HITACHI LTD15 citations72
US4644850AFeb 24, 1987
Fluid machine
HITACHI LTD13 citations70
US4392296AJul 12, 1983
Method of joining two metal members
HITACHI LTD6 citations62
US4541315ASep 17, 1985
Inside chuck device for machine tools
HITACHI LTD6 citations60