Inventor
KAMADA ATSUYA
5 patents
Patents
5 patentsUS4331280AMay 25, 1982
Method of jointing pipes by friction welding
HITACHI LTD59 citations93
US4083220AApr 11, 1978
Sub-zero temperature plastic working process for metal
HITACHI LTD38 citations92
US4239944ADec 16, 1980
Spider of loudspeaker
HITACHI LTD24 citations81
US3951577AApr 20, 1976
Apparatus for production of metal powder according water atomizing method
HITACHI LTD24 citations78
US4429558AFeb 7, 1984
Method of and apparatus for fabrication of spiral fin
HITACHI LTD6 citations61